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 u8 vrm; /* VRM version */ 283 u8 analog_out; /* Register value (DAC) */ 284 long alarms; /* Register encoding, combined */ 285 long alarm_mask; /* Register encoding, combined */ 286 long gpio; /* Register encoding, combined */ 287 long gpio_mask; /* Register encoding, combined */ 288 u8 gpio_config[17]; /* Decoded value */ 289 u8 config1; /* Register value */ 290 u8 config2; /* Register value */ 291 u8 config3; /* Register value */ 292 }; 293 294 static int adm1026_probe(struct i2c_client *client, 295 const struct i2c_device_id *id); 296 static int adm1026_detect(struct i2c_client *client, int kind, 297 struct i2c_board_info *info); 298 static int adm1026_remove(struct i2c_client *client); 299 static int adm1026_read_value(struct i2c_client *client, u8 reg); 300 static int adm1026_write_value(struct i2c_client *client, u8 reg, int value); 301 static void adm1026_print_gpio(struct i2c_client *client); 302 static void adm1026_fixup_gpio(struct i2c_client *client); 303 static struct adm1026_data *adm1026_update_device(struct device *dev); 304 static void adm1026_init_client(struct i2c_client *client); 305 306 307 static const struct i2c_device_id adm1026_id[] = { 308 { "adm1026", adm1026 }, 309 { } 310 }; 311 MODULE_DEVICE_TABLE(i2c, adm1026_id); 312 313 static struct i2c_driver adm1026_driver = { 314 .class = I2C_CLASS_HWMON, 315 .driver = { 316 .name = "adm1026", 317 }, 318 .probe = adm1026_probe, 319 .remove = adm1026_remove, 320 .id_table = adm1026_id, 321 .detect = adm1026_detect, 322 .address_data = &addr_data, 323 }; 324 325 static int adm1026_read_value(struct i2c_client *client, u8 reg) 326 { 327 int res; 328 329 if (reg < 0x80) { 330 /* "RAM" locations */ 331 res = i2c_smbus_read_byte_data(client, reg) & 0xff; 332 } else { 333 /* EEPROM, do nothing */ 334 res = 0; 335 } 336 return res; 337 } 338 339 static int adm1026_write_value(struct i2c_client *client, u8 reg, int value) 340 { 341 int res; 342 343 if (reg < 0x80) { 344 /* "RAM" locations */ 345 res = i2c_smbus_write_byte_data(client, reg, value); 346 } else { 347 /* EEPROM, do nothing */ 348 res = 0; 349 } 350 return res; 351 } 352 353 static void adm1026_init_client(struct i2c_client *client) 354 { 355 int value, i; 356 struct adm1026_data *data = i2c_get_clientdata(client); 357 358 dev_dbg(&client->dev, "Initializing device\n"); 359 /* Read chip config */ 360 data->config1 = adm1026_read_value(client, ADM1026_REG_CONFIG1); 361 data->config2 = adm1026_read_value(client, ADM1026_REG_CONFIG2); 362 data->config3 = adm1026_read_value(client, ADM1026_REG_CONFIG3); 363 364 /* Inform user of chip config */ 365 dev_dbg(&client->dev, "ADM1026_REG_CONFIG1 is: 0x%02x\n", 366 data->config1); 367 if ((data->config1 & CFG1_MONITOR) == 0) { 368 dev_dbg(&client->dev, "Monitoring not currently " 369 "enabled.\n"); 370 } 371 if (data->config1 & CFG1_INT_ENABLE) { 372 dev_dbg(&client->dev, "SMBALERT interrupts are " 373 "enabled.\n"); 374 } 375 if (data->config1 & CFG1_AIN8_9) { 376 dev_dbg(&client->dev, "in8 and in9 enabled. " 377 "temp3 disabled.\n"); 378 } else { 379 dev_dbg(&client->dev, "temp3 enabled. in8 and " 380 "in9 disabled.\n"); 381 } 382 if (data->config1 & CFG1_THERM_HOT) { 383 dev_dbg(&client->dev, "Automatic THERM, PWM, " 384 "and temp limits enabled.\n"); 385 } 386 387 if (data->config3 & CFG3_GPIO16_ENABLE) { 388 dev_dbg(&client->dev, "GPIO16 enabled. THERM " 389 "pin disabled.\n"); 390 } else { 391 dev_dbg(&client->dev, "THERM pin enabled. " 392 "GPIO16 disabled.\n"); 393 } 394 if (data->config3 & CFG3_VREF_250) { 395 dev_dbg(&client->dev, "Vref is 2.50 Volts.\n"); 396 } else { 397 dev_dbg(&client->dev, "Vref is 1.82 Volts.\n"); 398 } 399 /* Read and pick apart the existing GPIO configuration */ 400 value = 0; 401 for (i = 0;i <= 15;++i) { 402 if ((i & 0x03) == 0) { 403 value = adm1026_read_value(client, 404 ADM1026_REG_GPIO_CFG_0_3 + i/4); 405 } 406 data->gpio_config[i] = value & 0x03; 407 value >>= 2; 408 } 409 data->gpio_config[16] = (data->config3 >> 6) & 0x03; 410 411 /* ... and then print it */ 412 adm1026_print_gpio(client); 413 414 /* If the user asks us to reprogram the GPIO config, then 415 * do it now. 416 */ 417 if (gpio_input[0] != -1 || gpio_output[0] != -1 418 || gpio_inverted[0] != -1 || gpio_normal[0] != -1 419 || gpio_fan[0] != -1) { 420 adm1026_fixup_gpio(client); 421 } 422 423 /* WE INTENTIONALLY make no changes to the limits, 424 * offsets, pwms, fans and zones. If they were 425 * configured, we don't want to mess with them. 426 * If they weren't, the default is 100% PWM, no 427 * control and will suffice until 'sensors -s' 428 * can be run by the user. We DO set the default 429 * value for pwm1.auto_pwm_min to its maximum 430 * so that enabling automatic pwm fan control 431 * without first setting a value for pwm1.auto_pwm_min 432 * will not result in potentially dangerous fan speed decrease. 433 */ 434 data->pwm1.auto_pwm_min=255; 435 /* Start monitoring */ 436 value = adm1026_read_value(client, ADM1026_REG_CONFIG1); 437 /* Set MONITOR, clear interrupt acknowledge and s/w reset */ 438 value = (value | CFG1_MONITOR) & (~CFG1_INT_CLEAR & ~CFG1_RESET); 439 dev_dbg(&client->dev, "Setting CONFIG to: 0x%02x\n", value); 440 data->config1 = value; 441 adm1026_write_value(client, ADM1026_REG_CONFIG1, value); 442 443 /* initialize fan_div[] to hardware defaults */ 444 value = adm1026_read_value(client, ADM1026_REG_FAN_DIV_0_3) | 445 (adm1026_read_value(client, ADM1026_REG_FAN_DIV_4_7) << 8); 446 for (i = 0;i <= 7;++i) { 447 data->fan_div[i] = DIV_FROM_REG(value & 0x03); 448 value >>= 2; 449 } 450 } 451 452 static void adm1026_print_gpio(struct i2c_client *client) 453 { 454 struct adm1026_data *data = i2c_get_clientdata(client); 455 int i; 456 457 dev_dbg(&client->dev, "GPIO config is:\n"); 458 for (i = 0;i <= 7;++i) { 459 if (data->config2 & (1 << i)) { 460 dev_dbg(&client->dev, "\t%sGP%s%d\n", 461 data->gpio_config[i] & 0x02 ? "" : "!", 462 data->gpio_config[i] & 0x01 ? "OUT" : "IN", 463 i); 464 } else { 465 dev_dbg(&client->dev, "\tFAN%d\n", i); 466 } 467 } 468 for (i = 8;i <= 15;++i) { 469 dev_dbg(&client->dev, "\t%sGP%s%d\n", 470 data->gpio_config[i] & 0x02 ? "" : "!", 471 data->gpio_config[i] & 0x01 ? "OUT" : "IN", 472 i); 473 } 474 if (data->config3 & CFG3_GPIO16_ENABLE) { 475 dev_dbg(&client->dev, "\t%sGP%s16\n", 476 data->gpio_config[16] & 0x02 ? "" : "!", 477 data->gpio_config[16] & 0x01 ? "OUT" : "IN"); 478 } else { 479 /* GPIO16 is THERM */ 480 dev_dbg(&client->dev, "\tTHERM\n"); 481 } 482 } 483 484 static void adm1026_fixup_gpio(struct i2c_client *client) 485 { 486 struct adm1026_data *data = i2c_get_clientdata(client); 487 int i; 488 int value; 489 490 /* Make the changes requested. */ 491 /* We may need to unlock/stop monitoring or soft-reset the 492 * chip before we can make changes. This hasn't been 493 * tested much. FIXME 494 */ 495 496 /* Make outputs */ 497 for (i = 0;i <= 16;++i) { 498 if (gpio_output[i] >= 0 && gpio_output[i] <= 16) { 499 data->gpio_config[gpio_output[i]] |= 0x01; 500 } 501 /* if GPIO0-7 is output, it isn't a FAN tach */ 502 if (gpio_output[i] >= 0 && gpio_output[i] <= 7) { 503 data->config2 |= 1 << gpio_output[i]; 504 } 505 } 506 507 /* Input overrides output */ 508 for (i = 0;i <= 16;++i) { 509 if (gpio_input[i] >= 0 && gpio_input[i] <= 16) { 510 data->gpio_config[gpio_input[i]] &= ~ 0x01; 511 } 512 /* if GPIO0-7 is input, it isn't a FAN tach */ 513 if (gpio_input[i] >= 0 && gpio_input[i] <= 7) { 514 data->config2 |= 1 << gpio_input[i]; 515 } 516 } 517 518 /* Inverted */ 519 for (i = 0;i <= 16;++i) { 520 if (gpio_inverted[i] >= 0 && gpio_inverted[i] <= 16) { 521 data->gpio_config[gpio_inverted[i]] &= ~ 0x02; 522 } 523 } 524 525 /* Normal overrides inverted */ 526 for (i = 0;i <= 16;++i) { 527 if (gpio_normal[i] >= 0 && gpio_normal[i] <= 16) { 528 data->gpio_config[gpio_normal[i]] |= 0x02; 529 } 530 } 531 532 /* Fan overrides input and output */ 533 for (i = 0;i <= 7;++i) { 534 if (gpio_fan[i] >= 0 && gpio_fan[i] <= 7) { 535 data->config2 &= ~(1 << gpio_fan[i]); 536 } 537 } 538 539 /* Write new configs to registers */ 540 adm1026_write_value(client, ADM1026_REG_CONFIG2, data->config2); 541 data->config3 = (data->config3 & 0x3f) 542 | ((data->gpio_config[16] & 0x03) << 6); 543 adm1026_write_value(client, ADM1026_REG_CONFIG3, data->config3); 544 for (i = 15, value = 0;i >= 0;--i) { 545 value <<= 2; 546 value |= data->gpio_config[i] & 0x03; 547 if ((i & 0x03) == 0) { 548 adm1026_write_value(client, 549 ADM1026_REG_GPIO_CFG_0_3 + i/4, 550 value); 551 value = 0; 552 } 553 } 554 555 /* Print the new config */ 556 adm1026_print_gpio(client); 557 } 558 559 560 static struct adm1026_data *adm1026_update_device(struct device *dev) 561 { 562 struct i2c_client *client = to_i2c_client(dev); 563 struct adm1026_data *data = i2c_get_clientdata(client); 564 int i; 565 long value, alarms, gpio; 566 567 mutex_lock(&data->update_lock); 568 if (!data->valid 569 || time_after(jiffies, data->last_reading + ADM1026_DATA_INTERVAL)) { 570 /* Things that change quickly */ 571 dev_dbg(&client->dev, "Reading sensor values\n"); 572 for (i = 0;i <= 16;++i) { 573 data->in[i] = 574 adm1026_read_value(client, ADM1026_REG_IN[i]); 575 } 576 577 for (i = 0;i <= 7;++i) { 578 data->fan[i] = 579 adm1026_read_value(client, ADM1026_REG_FAN(i)); 580 } 581 582 for (i = 0;i <= 2;++i) { 583 /* NOTE: temp[] is s8 and we assume 2's complement 584 * "conversion" in the assignment */ 585 data->temp[i] = 586 adm1026_read_value(client, ADM1026_REG_TEMP[i]); 587 } 588 589 data->pwm1.pwm = adm1026_read_value(client, 590 ADM1026_REG_PWM); 591 data->analog_out = adm1026_read_value(client, 592 ADM1026_REG_DAC); 593 /* GPIO16 is MSbit of alarms, move it to gpio */ 594 alarms = adm1026_read_value(client, ADM1026_REG_STATUS4); 595 gpio = alarms & 0x80 ? 0x0100 : 0; /* GPIO16 */ 596 alarms &= 0x7f; 597 alarms <<= 8; 598 alarms |= adm1026_read_value(client, ADM1026_REG_STATUS3); 599 alarms <<= 8; 600 alarms |= adm1026_read_value(client, ADM1026_REG_STATUS2); 601 alarms <<= 8; 602 alarms |= adm1026_read_value(client, ADM1026_REG_STATUS1); 603 data->alarms = alarms; 604 605 /* Read the GPIO values */ 606 gpio |= adm1026_read_value(client, 607 ADM1026_REG_GPIO_STATUS_8_15); 608 gpio <<= 8; 609 gpio |= adm1026_read_value(client, 610 ADM1026_REG_GPIO_STATUS_0_7); 611 data->gpio = gpio; 612 613 data->last_reading = jiffies; 614 }; /* last_reading */ 615 616 if (!data->valid || 617 time_after(jiffies, data->last_config + ADM1026_CONFIG_INTERVAL)) { 618 /* Things that don't change often */ 619 dev_dbg(&client->dev, "Reading config values\n"); 620 for (i = 0;i <= 16;++i) { 621 data->in_min[i] = adm1026_read_value(client, 622 ADM1026_REG_IN_MIN[i]); 623 data->in_max[i] = adm1026_read_value(client, 624 ADM1026_REG_IN_MAX[i]); 625 } 626 627 value = adm1026_read_value(client, ADM1026_REG_FAN_DIV_0_3) 628 | (adm1026_read_value(client, ADM1026_REG_FAN_DIV_4_7) 629 << 8); 630 for (i = 0;i <= 7;++i) { 631 data->fan_min[i] = adm1026_read_value(client, 632 ADM1026_REG_FAN_MIN(i)); 633 data->fan_div[i] = DIV_FROM_REG(value & 0x03); 634 value >>= 2; 635 } 636 637 for (i = 0; i <= 2; ++i) { 638 /* NOTE: temp_xxx[] are s8 and we assume 2's 639 * complement "conversion" in the assignment 640 */ 641 data->temp_min[i] = adm1026_read_value(client, 642 ADM1026_REG_TEMP_MIN[i]); 643 data->temp_max[i] = adm1026_read_value(client, 644 ADM1026_REG_TEMP_MAX[i]); 645 data->temp_tmin[i] = adm1026_read_value(client, 646 ADM1026_REG_TEMP_TMIN[i]); 647 data->temp_crit[i] = adm1026_read_value(client, 648 ADM1026_REG_TEMP_THERM[i]); 649 data->temp_offset[i] = adm1026_read_value(client, 650 ADM1026_REG_TEMP_OFFSET[i]); 651 } 652 653 /* Read the STATUS/alarm masks */ 654 alarms = adm1026_read_value(client, ADM1026_REG_MASK4); 655 gpio = alarms & 0x80 ? 0x0100 : 0; /* GPIO16 */ 656 alarms = (alarms & 0x7f) << 8; 657 alarms |= adm1026_read_value(client, ADM1026_REG_MASK3); 658 alarms <<= 8; 659 alarms |= adm1026_read_value(client, ADM1026_REG_MASK2); 660 alarms <<= 8; 661 alarms |= adm1026_read_value(client, ADM1026_REG_MASK1); 662 data->alarm_mask = alarms; 663 664 /* Read the GPIO values */ 665 gpio |= adm1026_read_value(client, 666 ADM1026_REG_GPIO_MASK_8_15); 667 gpio <<= 8; 668 gpio |= adm1026_read_value(client, ADM1026_REG_GPIO_MASK_0_7); 669 data->gpio_mask = gpio; 670 671 /* Read various values from CONFIG1 */ 672 data->config1 = adm1026_read_value(client, 673 ADM1026_REG_CONFIG1); 674 if (data->config1 & CFG1_PWM_AFC) { 675 data->pwm1.enable = 2; 676 data->pwm1.auto_pwm_min = 677 PWM_MIN_FROM_REG(data->pwm1.pwm); 678 } 679 /* Read the GPIO config */ 680 data->config2 = adm1026_read_value(client, 681 ADM1026_REG_CONFIG2); 682 data->config3 = adm1026_read_value(client, 683 ADM1026_REG_CONFIG3); 684 data->gpio_config[16] = (data->config3 >> 6) & 0x03; 685 686 value = 0; 687 for (i = 0;i <= 15;++i) { 688 if ((i & 0x03) == 0) { 689 value = adm1026_read_value(client, 690 ADM1026_REG_GPIO_CFG_0_3 + i/4); 691 } 692 data->gpio_config[i] = value & 0x03; 693 value >>= 2; 694 } 695 696 data->last_config = jiffies; 697 }; /* last_config */ 698 699 data->valid = 1; 700 mutex_unlock(&data->update_lock); 701 return data; 702 } 703 704 static ssize_t show_in(struct device *dev, struct device_attribute *attr, 705 char *buf) 706 { 707 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 708 int nr = sensor_attr->index; 709 struct adm1026_data *data = adm1026_update_device(dev); 710 return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in[nr])); 711 } 712 static ssize_t show_in_min(struct device *dev, struct device_attribute *attr, 713 char *buf) 714 { 715 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 716 int nr = sensor_attr->index; 717 struct adm1026_data *data = adm1026_update_device(dev); 718 return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in_min[nr])); 719 } 720 static ssize_t set_in_min(struct device *dev, struct device_attribute *attr, 721 const char *buf, size_t count) 722 { 723 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 724 int nr = sensor_attr->index; 725 struct i2c_client *client = to_i2c_client(dev); 726 struct adm1026_data *data = i2c_get_clientdata(client); 727 int val = simple_strtol(buf, NULL, 10); 728 729 mutex_lock(&data->update_lock); 730 data->in_min[nr] = INS_TO_REG(nr, val); 731 adm1026_write_value(client, ADM1026_REG_IN_MIN[nr], data->in_min[nr]); 732 mutex_unlock(&data->update_lock); 733 return count; 734 } 735 static ssize_t show_in_max(struct device *dev, struct device_attribute *attr, 736 char *buf) 737 { 738 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 739 int nr = sensor_attr->index; 740 struct adm1026_data *data = adm1026_update_device(dev); 741 return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in_max[nr])); 742 } 743 static ssize_t set_in_max(struct device *dev, struct device_attribute *attr, 744 const char *buf, size_t count) 745 { 746 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 747 int nr = sensor_attr->index; 748 struct i2c_client *client = to_i2c_client(dev); 749 struct adm1026_data *data = i2c_get_clientdata(client); 750 int val = simple_strtol(buf, NULL, 10); 751 752 mutex_lock(&data->update_lock); 753 data->in_max[nr] = INS_TO_REG(nr, val); 754 adm1026_write_value(client, ADM1026_REG_IN_MAX[nr], data->in_max[nr]); 755 mutex_unlock(&data->update_lock); 756 return count; 757 } 758 759 #define in_reg(offset) \ 760 static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, show_in, \ 761 NULL, offset); \ 762 static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \ 763 show_in_min, set_in_min, offset); \ 764 static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \ 765 show_in_max, set_in_max, offset); 766 767 768 in_reg(0); 769 in_reg(1); 770 in_reg(2); 771 in_reg(3); 772 in_reg(4); 773 in_reg(5); 774 in_reg(6); 775 in_reg(7); 776 in_reg(8); 777 in_reg(9); 778 in_reg(10); 779 in_reg(11); 780 in_reg(12); 781 in_reg(13); 782 in_reg(14); 783 in_reg(15); 784 785 static ssize_t show_in16(struct device *dev, struct device_attribute *attr, char *buf) 786 { 787 struct adm1026_data *data = adm1026_update_device(dev); 788 return sprintf(buf, "%d\n", INS_FROM_REG(16, data->in[16]) - 789 NEG12_OFFSET); 790 } 791 static ssize_t show_in16_min(struct device *dev, struct device_attribute *attr, char *buf) 792 { 793 struct adm1026_data *data = adm1026_update_device(dev); 794 return sprintf(buf, "%d\n", INS_FROM_REG(16, data->in_min[16]) 795 - NEG12_OFFSET); 796 } 797 static ssize_t set_in16_min(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) 798 { 799 struct i2c_client *client = to_i2c_client(dev); 800 struct adm1026_data *data = i2c_get_clientdata(client); 801 int val = simple_strtol(buf, NULL, 10); 802 803 mutex_lock(&data->update_lock); 804 data->in_min[16] = INS_TO_REG(16, val + NEG12_OFFSET); 805 adm1026_write_value(client, ADM1026_REG_IN_MIN[16], data->in_min[16]); 806 mutex_unlock(&data->update_lock); 807 return count; 808 } 809 static ssize_t show_in16_max(struct device *dev, struct device_attribute *attr, char *buf) 810 { 811 struct adm1026_data *data = adm1026_update_device(dev); 812 return sprintf(buf, "%d\n", INS_FROM_REG(16, data->in_max[16]) 813 - NEG12_OFFSET); 814 } 815 static ssize_t set_in16_max(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) 816 { 817 struct i2c_client *client = to_i2c_client(dev); 818 struct adm1026_data *data = i2c_get_clientdata(client); 819 int val = simple_strtol(buf, NULL, 10); 820 821 mutex_lock(&data->update_lock); 822 data->in_max[16] = INS_TO_REG(16, val+NEG12_OFFSET); 823 adm1026_write_value(client, ADM1026_REG_IN_MAX[16], data->in_max[16]); 824 mutex_unlock(&data->update_lock); 825 return count; 826 } 827 828 static SENSOR_DEVICE_ATTR(in16_input, S_IRUGO, show_in16, NULL, 16); 829 static SENSOR_DEVICE_ATTR(in16_min, S_IRUGO | S_IWUSR, show_in16_min, set_in16_min, 16); 830 static SENSOR_DEVICE_ATTR(in16_max, S_IRUGO | S_IWUSR, show_in16_max, set_in16_max, 16); 831 832 833 834 835 /* Now add fan read/write functions */ 836 837 static ssize_t show_fan(struct device *dev, struct device_attribute *attr, 838 char *buf) 839 { 840 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 841 int nr = sensor_attr->index; 842 struct adm1026_data *data = adm1026_update_device(dev); 843 return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[nr], 844 data->fan_div[nr])); 845 } 846 static ssize_t show_fan_min(struct device *dev, struct device_attribute *attr, 847 char *buf) 848 { 849 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 850 int nr = sensor_attr->index; 851 struct adm1026_data *data = adm1026_update_device(dev); 852 return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[nr], 853 data->fan_div[nr])); 854 } 855 static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr, 856 const char *buf, size_t count) 857 { 858 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 859 int nr = sensor_attr->index; 860 struct i2c_client *client = to_i2c_client(dev); 861 struct adm1026_data *data = i2c_get_clientdata(client); 862 int val = simple_strtol(buf, NULL, 10); 863 864 mutex_lock(&data->update_lock); 865 data->fan_min[nr] = FAN_TO_REG(val, data->fan_div[nr]); 866 adm1026_write_value(client, ADM1026_REG_FAN_MIN(nr), 867 data->fan_min[nr]); 868 mutex_unlock(&data->update_lock); 869 return count; 870 } 871 872 #define fan_offset(offset) \ 873 static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, show_fan, NULL, \ 874 offset - 1); \ 875 static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \ 876 show_fan_min, set_fan_min, offset - 1); 877 878 fan_offset(1); 879 fan_offset(2); 880 fan_offset(3); 881 fan_offset(4); 882 fan_offset(5); 883 fan_offset(6); 884 fan_offset(7); 885 fan_offset(8); 886 887 /* Adjust fan_min to account for new fan divisor */ 888 static void fixup_fan_min(struct device *dev, int fan, int old_div) 889 { 890 struct i2c_client *client = to_i2c_client(dev); 891 struct adm1026_data *data = i2c_get_clientdata(client); 892 int new_min; 893 int new_div = data->fan_div[fan]; 894 895 /* 0 and 0xff are special. Don't adjust them */ 896 if (data->fan_min[fan] == 0 || data->fan_min[fan] == 0xff) { 897 return; 898 } 899 900 new_min = data->fan_min[fan] * old_div / new_div; 901 new_min = SENSORS_LIMIT(new_min, 1, 254); 902 data->fan_min[fan] = new_min; 903 adm1026_write_value(client, ADM1026_REG_FAN_MIN(fan), new_min); 904 } 905 906 /* Now add fan_div read/write functions */ 907 static ssize_t show_fan_div(struct device *dev, struct device_attribute *attr, 908 char *buf) 909 { 910 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 911 int nr = sensor_attr->index; 912 struct adm1026_data *data = adm1026_update_device(dev); 913 return sprintf(buf, "%d\n", data->fan_div[nr]); 914 } 915 static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr, 916 const char *buf, size_t count) 917 { 918 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 919 int nr = sensor_attr->index; 920 struct i2c_client *client = to_i2c_client(dev); 921 struct adm1026_data *data = i2c_get_clientdata(client); 922 int val, orig_div, new_div, shift; 923 924 val = simple_strtol(buf, NULL, 10); 925 new_div = DIV_TO_REG(val); 926 if (new_div == 0) { 927 return -EINVAL; 928 } 929 mutex_lock(&data->update_lock); 930 orig_div = data->fan_div[nr]; 931 data->fan_div[nr] = DIV_FROM_REG(new_div); 932 933 if (nr < 4) { /* 0 <= nr < 4 */ 934 shift = 2 * nr; 935 adm1026_write_value(client, ADM1026_REG_FAN_DIV_0_3, 936 ((DIV_TO_REG(orig_div) & (~(0x03 << shift))) | 937 (new_div << shift))); 938 } else { /* 3 < nr < 8 */ 939 shift = 2 * (nr - 4); 940 adm1026_write_value(client, ADM1026_REG_FAN_DIV_4_7, 941 ((DIV_TO_REG(orig_div) & (~(0x03 << (2 * shift)))) | 942 (new_div << shift))); 943 } 944 945 if (data->fan_div[nr] != orig_div) { 946 fixup_fan_min(dev, nr, orig_div); 947 } 948 mutex_unlock(&data->update_lock); 949 return count; 950 } 951 952 #define fan_offset_div(offset) \ 953 static SENSOR_DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR, \ 954 show_fan_div, set_fan_div, offset - 1); 955 956 fan_offset_div(1); 957 fan_offset_div(2); 958 fan_offset_div(3); 959 fan_offset_div(4); 960 fan_offset_div(5); 961 fan_offset_div(6); 962 fan_offset_div(7); 963 fan_offset_div(8); 964 965 /* Temps */ 966 static ssize_t show_temp(struct device *dev, struct device_attribute *attr, 967 char *buf) 968 { 969 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 970 int nr = sensor_attr->index; 971 struct adm1026_data *data = adm1026_update_device(dev); 972 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[nr])); 973 } 974 static ssize_t show_temp_min(struct device *dev, struct device_attribute *attr, 975 char *buf) 976 { 977 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 978 int nr = sensor_attr->index; 979 struct adm1026_data *data = adm1026_update_device(dev); 980 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[nr])); 981 } 982 static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr, 983 const char *buf, size_t count) 984 { 985 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 986 int nr = sensor_attr->index; 987 struct i2c_client *client = to_i2c_client(dev); 988 struct adm1026_data *data = i2c_get_clientdata(client); 989 int val = simple_strtol(buf, NULL, 10); 990 991 mutex_lock(&data->update_lock); 992 data->temp_min[nr] = TEMP_TO_REG(val); 993 adm1026_write_value(client, ADM1026_REG_TEMP_MIN[nr], 994 data->temp_min[nr]); 995 mutex_unlock(&data->update_lock); 996 return count; 997 } 998 static ssize_t show_temp_max(struct device *dev, struct device_attribute *attr, 999 char *buf) 1000 { 1001 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 1002 int nr = sensor_attr->index; 1003 struct adm1026_data *data = adm1026_update_device(dev); 1004 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[nr])); 1005 } 1006 static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr, 1007 const char *buf, size_t count) 1008 { 1009 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 1010 int nr = sensor_attr->index; 1011 struct i2c_client *client = to_i2c_client(dev); 1012 struct adm1026_data *data = i2c_get_clientdata(client); 1013 int val = simple_strtol(buf, NULL, 10); 1014 1015 mutex_lock(&data->update_lock); 1016 data->temp_max[nr] = TEMP_TO_REG(val); 1017 adm1026_write_value(client, ADM1026_REG_TEMP_MAX[nr], 1018 data->temp_max[nr]); 1019 mutex_unlock(&data->update_lock); 1020 return count; 1021 } 1022 1023 #define temp_reg(offset) \ 1024 static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, show_temp, \ 1025 NULL, offset - 1); \ 1026 static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR, \ 1027 show_temp_min, set_temp_min, offset - 1); \ 1028 static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \ 1029 show_temp_max, set_temp_max, offset - 1); 1030 1031 1032 temp_reg(1); 1033 temp_reg(2); 1034 temp_reg(3); 1035 1036 static ssize_t show_temp_offset(struct device *dev, 1037 struct device_attribute *attr, char *buf) 1038 { 1039 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 1040 int nr = sensor_attr->index; 1041 struct adm1026_data *data = adm1026_update_device(dev); 1042 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_offset[nr])); 1043 } 1044 static ssize_t set_temp_offset(struct device *dev, 1045 struct device_attribute *attr, const char *buf, 1046 size_t count) 1047 { 1048 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 1049 int nr = sensor_attr->index; 1050 struct i2c_client *client = to_i2c_client(dev); 1051 struct adm1026_data *data = i2c_get_clientdata(client); 1052 int val = simple_strtol(buf, NULL, 10); 1053 1054 mutex_lock(&data->update_lock); 1055 data->temp_offset[nr] = TEMP_TO_REG(val); 1056 adm1026_write_value(client, ADM1026_REG_TEMP_OFFSET[nr], 1057 data->temp_offset[nr]); 1058 mutex_unlock(&data->update_lock); 1059 return count; 1060 } 1061 1062 #define temp_offset_reg(offset) \ 1063 static SENSOR_DEVICE_ATTR(temp##offset##_offset, S_IRUGO | S_IWUSR, \ 1064 show_temp_offset, set_temp_offset, offset - 1); 1065 1066 temp_offset_reg(1); 1067 temp_offset_reg(2); 1068 temp_offset_reg(3); 1069 1070 static ssize_t show_temp_auto_point1_temp_hyst(struct device *dev, 1071 struct device_attribute *attr, char *buf) 1072 { 1073 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 1074 int nr = sensor_attr->index; 1075 struct adm1026_data *data = adm1026_update_device(dev); 1076 return sprintf(buf, "%d\n", TEMP_FROM_REG( 1077 ADM1026_FAN_ACTIVATION_TEMP_HYST + data->temp_tmin[nr])); 1078 } 1079 static ssize_t show_temp_auto_point2_temp(struct device *dev, 1080 struct device_attribute *attr, char *buf) 1081 { 1082 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 1083 int nr = sensor_attr->index; 1084 struct adm1026_data *data = adm1026_update_device(dev); 1085 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_tmin[nr] + 1086 ADM1026_FAN_CONTROL_TEMP_RANGE)); 1087 } 1088 static ssize_t show_temp_auto_point1_temp(struct device *dev, 1089 struct device_attribute *attr, char *buf) 1090 { 1091 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 1092 int nr = sensor_attr->index; 1093 struct adm1026_data *data = adm1026_update_device(dev); 1094 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_tmin[nr])); 1095 } 1096 static ssize_t set_temp_auto_point1_temp(struct device *dev, 1097 struct device_attribute *attr, const char *buf, size_t count) 1098 { 1099 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 1100 int nr = sensor_attr->index; 1101 struct i2c_client *client = to_i2c_client(dev); 1102 struct adm1026_data *data = i2c_get_clientdata(client); 1103 int val = simple_strtol(buf, NULL, 10); 1104 1105 mutex_lock(&data->update_lock); 1106 data->temp_tmin[nr] = TEMP_TO_REG(val); 1107 adm1026_write_value(client, ADM1026_REG_TEMP_TMIN[nr], 1108 data->temp_tmin[nr]); 1109 mutex_unlock(&data->update_lock); 1110 return count; 1111 } 1112 1113 #define temp_auto_point(offset) \ 1114 static SENSOR_DEVICE_ATTR(temp##offset##_auto_point1_temp, \ 1115 S_IRUGO | S_IWUSR, show_temp_auto_point1_temp, \ 1116 set_temp_auto_point1_temp, offset - 1); \ 1117 static SENSOR_DEVICE_ATTR(temp##offset##_auto_point1_temp_hyst, S_IRUGO,\ 1118 show_temp_auto_point1_temp_hyst, NULL, offset - 1); \ 1119 static SENSOR_DEVICE_ATTR(temp##offset##_auto_point2_temp, S_IRUGO, \ 1120 show_temp_auto_point2_temp, NULL, offset - 1); 1121 1122 temp_auto_point(1); 1123 temp_auto_point(2); 1124 temp_auto_point(3); 1125 1126 static ssize_t show_temp_crit_enable(struct device *dev, 1127 struct device_attribute *attr, char *buf) 1128 { 1129 struct adm1026_data *data = adm1026_update_device(dev); 1130 return sprintf(buf, "%d\n", (data->config1 & CFG1_THERM_HOT) >> 4); 1131 } 1132 static ssize_t set_temp_crit_enable(struct device *dev, 1133 struct device_attribute *attr, const char *buf, size_t count) 1134 { 1135 struct i2c_client *client = to_i2c_client(dev); 1136 struct adm1026_data *data = i2c_get_clientdata(client); 1137 int val = simple_strtol(buf, NULL, 10); 1138 1139 if ((val == 1) || (val==0)) { 1140 mutex_lock(&data->update_lock); 1141 data->config1 = (data->config1 & ~CFG1_THERM_HOT) | (val << 4); 1142 adm1026_write_value(client, ADM1026_REG_CONFIG1, 1143 data->config1); 1144 mutex_unlock(&data->update_lock); 1145 } 1146 return count; 1147 } 1148 1149 #define temp_crit_enable(offset) \ 1150 static DEVICE_ATTR(temp##offset##_crit_enable, S_IRUGO | S_IWUSR, \ 1151 show_temp_crit_enable, set_temp_crit_enable); 1152 1153 temp_crit_enable(1); 1154 temp_crit_enable(2); 1155 temp_crit_enable(3); 1156 1157 static ssize_t show_temp_crit(struct device *dev, 1158 struct device_attribute *attr, char *buf) 1159 { 1160 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 1161 int nr = sensor_attr->index; 1162 struct adm1026_data *data = adm1026_update_device(dev); 1163 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_crit[nr])); 1164 } 1165 static ssize_t set_temp_crit(struct device *dev, struct device_attribute *attr, 1166 const char *buf, size_t count) 1167 { 1168 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 1169 int nr = sensor_attr->index; 1170 struct i2c_client *client = to_i2c_client(dev); 1171 struct adm1026_data *data = i2c_get_clientdata(client); 1172 int val = simple_strtol(buf, NULL, 10); 1173 1174 mutex_lock(&data->update_lock); 1175 data->temp_crit[nr] = TEMP_TO_REG(val); 1176 adm1026_write_value(client, ADM1026_REG_TEMP_THERM[nr], 1177 data->temp_crit[nr]); 1178 mutex_unlock(&data->update_lock); 1179 return count; 1180 } 1181 1182 #define temp_crit_reg(offset) \ 1183 static SENSOR_DEVICE_ATTR(temp##offset##_crit, S_IRUGO | S_IWUSR, \ 1184 show_temp_crit, set_temp_crit, offset - 1); 1185 1186 temp_crit_reg(1); 1187 temp_crit_reg(2); 1188 temp_crit_reg(3); 1189 1190 static ssize_t show_analog_out_reg(struct device *dev, struct device_attribute *attr, char *buf) 1191 { 1192 struct adm1026_data *data = adm1026_update_device(dev); 1193 return sprintf(buf, "%d\n", DAC_FROM_REG(data->analog_out)); 1194 } 1195 static ssize_t set_analog_out_reg(struct device *dev, struct device_attribute *attr, const char *buf, 1196 size_t count) 1197 { 1198 struct i2c_client *client = to_i2c_client(dev); 1199 struct adm1026_data *data = i2c_get_clientdata(client); 1200 int val = simple_strtol(buf, NULL, 10); 1201 1202 mutex_lock(&data->update_lock); 1203 data->analog_out = DAC_TO_REG(val); 1204 adm1026_write_value(client, ADM1026_REG_DAC, data->analog_out); 1205 mutex_unlock(&data->update_lock); 1206 return count; 1207 } 1208 1209 static DEVICE_ATTR(analog_out, S_IRUGO | S_IWUSR, show_analog_out_reg, 1210 set_analog_out_reg); 1211 1212 static ssize_t show_vid_reg(struct device *dev, struct device_attribute *attr, char *buf) 1213 { 1214 struct adm1026_data *data = adm1026_update_device(dev); 1215 int vid = (data->gpio >> 11) & 0x1f; 1216 1217 dev_dbg(dev, "Setting VID from GPIO11-15.\n"); 1218 return sprintf(buf, "%d\n", vid_from_reg(vid, 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 failed\n"); 1694 /* Not an ADM1026 ... */ 1695 if (kind == 0) { /* User used force=x,y */ 1696 dev_err(&adapter->dev, "Generic ADM1026 not " 1697 "found at %d,0x%02x. Try " 1698 "force_adm1026.\n", 1699 i2c_adapter_id(adapter), address); 1700 } 1701 return -ENODEV; 1702 } 1703 } 1704 strlcpy(info->type, "adm1026", I2C_NAME_SIZE); 1705 1706 return 0; 1707 } 1708 1709 static int adm1026_probe(struct i2c_client *client, 1710 const struct i2c_device_id *id) 1711 { 1712 struct adm1026_data *data; 1713 int err; 1714 1715 data = kzalloc(sizeof(struct adm1026_data), GFP_KERNEL); 1716 if (!data) { 1717 err = -ENOMEM; 1718 goto exit; 1719 } 1720 1721 i2c_set_clientdata(client, data); 1722 mutex_init(&data->update_lock); 1723 1724 /* Set the VRM version */ 1725 data->vrm = vid_which_vrm(); 1726 1727 /* Initialize the ADM1026 chip */ 1728 adm1026_init_client(client); 1729 1730 /* Register sysfs hooks */ 1731 if ((err = sysfs_create_group(&client->dev.kobj, &adm1026_group))) 1732 goto exitfree; 1733 if (data->config1 & CFG1_AIN8_9) 1734 err = sysfs_create_group(&client->dev.kobj, 1735 &adm1026_group_in8_9); 1736 else 1737 err = sysfs_create_group(&client->dev.kobj, 1738 &adm1026_group_temp3); 1739 if (err) 1740 goto exitremove; 1741 1742 data->hwmon_dev = hwmon_device_register(&client->dev); 1743 if (IS_ERR(data->hwmon_dev)) { 1744 err = PTR_ERR(data->hwmon_dev); 1745 goto exitremove; 1746 } 1747 1748 return 0; 1749 1750 /* Error out and cleanup code */ 1751 exitremove: 1752 sysfs_remove_group(&client->dev.kobj, &adm1026_group); 1753 if (data->config1 & CFG1_AIN8_9) 1754 sysfs_remove_group(&client->dev.kobj, &adm1026_group_in8_9); 1755 else 1756 sysfs_remove_group(&client->dev.kobj, &adm1026_group_temp3); 1757 exitfree: 1758 kfree(data); 1759 exit: 1760 return err; 1761 } 1762 1763 static int adm1026_remove(struct i2c_client *client) 1764 { 1765 struct adm1026_data *data = i2c_get_clientdata(client); 1766 hwmon_device_unregister(data->hwmon_dev); 1767 sysfs_remove_group(&client->dev.kobj, &adm1026_group); 1768 if (data->config1 & CFG1_AIN8_9) 1769 sysfs_remove_group(&client->dev.kobj, &adm1026_group_in8_9); 1770 else 1771 sysfs_remove_group(&client->dev.kobj, &adm1026_group_temp3); 1772 kfree(data); 1773 return 0; 1774 } 1775 1776 static int __init sm_adm1026_init(void) 1777 { 1778 return i2c_add_driver(&adm1026_driver); 1779 } 1780 1781 static void __exit sm_adm1026_exit(void) 1782 { 1783 i2c_del_driver(&adm1026_driver); 1784 } 1785 1786 MODULE_LICENSE("GPL"); 1787 MODULE_AUTHOR("Philip Pokorny <ppokorny@penguincomputing.com>, " 1788 "Justin Thiessen <jthiessen@penguincomputing.com>"); 1789 MODULE_DESCRIPTION("ADM1026 driver"); 1790 1791 module_init(sm_adm1026_init); 1792 module_exit(sm_adm1026_exit); 1793