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 i2c_client client; 263 struct device *hwmon_dev; 264 265 struct mutex update_lock; 266 int valid; /* !=0 if following fields are valid */ 267 unsigned long last_reading; /* In jiffies */ 268 unsigned long last_config; /* In jiffies */ 269 270 u8 in[17]; /* Register value */ 271 u8 in_max[17]; /* Register value */ 272 u8 in_min[17]; /* Register value */ 273 s8 temp[3]; /* Register value */ 274 s8 temp_min[3]; /* Register value */ 275 s8 temp_max[3]; /* Register value */ 276 s8 temp_tmin[3]; /* Register value */ 277 s8 temp_crit[3]; /* Register value */ 278 s8 temp_offset[3]; /* Register value */ 279 u8 fan[8]; /* Register value */ 280 u8 fan_min[8]; /* Register value */ 281 u8 fan_div[8]; /* Decoded value */ 282 struct pwm_data pwm1; /* Pwm control values */ 283 int vid; /* Decoded value */ 284 u8 vrm; /* VRM version */ 285 u8 analog_out; /* Register value (DAC) */ 286 long alarms; /* Register encoding, combined */ 287 long alarm_mask; /* Register encoding, combined */ 288 long gpio; /* Register encoding, combined */ 289 long gpio_mask; /* Register encoding, combined */ 290 u8 gpio_config[17]; /* Decoded value */ 291 u8 config1; /* Register value */ 292 u8 config2; /* Register value */ 293 u8 config3; /* Register value */ 294 }; 295 296 static int adm1026_attach_adapter(struct i2c_adapter *adapter); 297 static int adm1026_detect(struct i2c_adapter *adapter, int address, 298 int kind); 299 static int adm1026_detach_client(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 struct i2c_driver adm1026_driver = { 309 .driver = { 310 .name = "adm1026", 311 }, 312 .attach_adapter = adm1026_attach_adapter, 313 .detach_client = adm1026_detach_client, 314 }; 315 316 static int adm1026_attach_adapter(struct i2c_adapter *adapter) 317 { 318 if (!(adapter->class & I2C_CLASS_HWMON)) { 319 return 0; 320 } 321 return i2c_probe(adapter, &addr_data, adm1026_detect); 322 } 323 324 static int adm1026_read_value(struct i2c_client *client, u8 reg) 325 { 326 int res; 327 328 if (reg < 0x80) { 329 /* "RAM" locations */ 330 res = i2c_smbus_read_byte_data(client, reg) & 0xff; 331 } else { 332 /* EEPROM, do nothing */ 333 res = 0; 334 } 335 return res; 336 } 337 338 static int adm1026_write_value(struct i2c_client *client, u8 reg, int value) 339 { 340 int res; 341 342 if (reg < 0x80) { 343 /* "RAM" locations */ 344 res = i2c_smbus_write_byte_data(client, reg, value); 345 } else { 346 /* EEPROM, do nothing */ 347 res = 0; 348 } 349 return res; 350 } 351 352 static void adm1026_init_client(struct i2c_client *client) 353 { 354 int value, i; 355 struct adm1026_data *data = i2c_get_clientdata(client); 356 357 dev_dbg(&client->dev, "Initializing device\n"); 358 /* Read chip config */ 359 data->config1 = adm1026_read_value(client, ADM1026_REG_CONFIG1); 360 data->config2 = adm1026_read_value(client, ADM1026_REG_CONFIG2); 361 data->config3 = adm1026_read_value(client, ADM1026_REG_CONFIG3); 362 363 /* Inform user of chip config */ 364 dev_dbg(&client->dev, "ADM1026_REG_CONFIG1 is: 0x%02x\n", 365 data->config1); 366 if ((data->config1 & CFG1_MONITOR) == 0) { 367 dev_dbg(&client->dev, "Monitoring not currently " 368 "enabled.\n"); 369 } 370 if (data->config1 & CFG1_INT_ENABLE) { 371 dev_dbg(&client->dev, "SMBALERT interrupts are " 372 "enabled.\n"); 373 } 374 if (data->config1 & CFG1_AIN8_9) { 375 dev_dbg(&client->dev, "in8 and in9 enabled. " 376 "temp3 disabled.\n"); 377 } else { 378 dev_dbg(&client->dev, "temp3 enabled. in8 and " 379 "in9 disabled.\n"); 380 } 381 if (data->config1 & CFG1_THERM_HOT) { 382 dev_dbg(&client->dev, "Automatic THERM, PWM, " 383 "and temp limits enabled.\n"); 384 } 385 386 if (data->config3 & CFG3_GPIO16_ENABLE) { 387 dev_dbg(&client->dev, "GPIO16 enabled. THERM " 388 "pin disabled.\n"); 389 } else { 390 dev_dbg(&client->dev, "THERM pin enabled. " 391 "GPIO16 disabled.\n"); 392 } 393 if (data->config3 & CFG3_VREF_250) { 394 dev_dbg(&client->dev, "Vref is 2.50 Volts.\n"); 395 } else { 396 dev_dbg(&client->dev, "Vref is 1.82 Volts.\n"); 397 } 398 /* Read and pick apart the existing GPIO configuration */ 399 value = 0; 400 for (i = 0;i <= 15;++i) { 401 if ((i & 0x03) == 0) { 402 value = adm1026_read_value(client, 403 ADM1026_REG_GPIO_CFG_0_3 + i/4); 404 } 405 data->gpio_config[i] = value & 0x03; 406 value >>= 2; 407 } 408 data->gpio_config[16] = (data->config3 >> 6) & 0x03; 409 410 /* ... and then print it */ 411 adm1026_print_gpio(client); 412 413 /* If the user asks us to reprogram the GPIO config, then 414 * do it now. 415 */ 416 if (gpio_input[0] != -1 || gpio_output[0] != -1 417 || gpio_inverted[0] != -1 || gpio_normal[0] != -1 418 || gpio_fan[0] != -1) { 419 adm1026_fixup_gpio(client); 420 } 421 422 /* WE INTENTIONALLY make no changes to the limits, 423 * offsets, pwms, fans and zones. If they were 424 * configured, we don't want to mess with them. 425 * If they weren't, the default is 100% PWM, no 426 * control and will suffice until 'sensors -s' 427 * can be run by the user. We DO set the default 428 * value for pwm1.auto_pwm_min to its maximum 429 * so that enabling automatic pwm fan control 430 * without first setting a value for pwm1.auto_pwm_min 431 * will not result in potentially dangerous fan speed decrease. 432 */ 433 data->pwm1.auto_pwm_min=255; 434 /* Start monitoring */ 435 value = adm1026_read_value(client, ADM1026_REG_CONFIG1); 436 /* Set MONITOR, clear interrupt acknowledge and s/w reset */ 437 value = (value | CFG1_MONITOR) & (~CFG1_INT_CLEAR & ~CFG1_RESET); 438 dev_dbg(&client->dev, "Setting CONFIG to: 0x%02x\n", value); 439 data->config1 = value; 440 adm1026_write_value(client, ADM1026_REG_CONFIG1, value); 441 442 /* initialize fan_div[] to hardware defaults */ 443 value = adm1026_read_value(client, ADM1026_REG_FAN_DIV_0_3) | 444 (adm1026_read_value(client, ADM1026_REG_FAN_DIV_4_7) << 8); 445 for (i = 0;i <= 7;++i) { 446 data->fan_div[i] = DIV_FROM_REG(value & 0x03); 447 value >>= 2; 448 } 449 } 450 451 static void adm1026_print_gpio(struct i2c_client *client) 452 { 453 struct adm1026_data *data = i2c_get_clientdata(client); 454 int i; 455 456 dev_dbg(&client->dev, "GPIO config is:"); 457 for (i = 0;i <= 7;++i) { 458 if (data->config2 & (1 << i)) { 459 dev_dbg(&client->dev, "\t%sGP%s%d\n", 460 data->gpio_config[i] & 0x02 ? "" : "!", 461 data->gpio_config[i] & 0x01 ? "OUT" : "IN", 462 i); 463 } else { 464 dev_dbg(&client->dev, "\tFAN%d\n", i); 465 } 466 } 467 for (i = 8;i <= 15;++i) { 468 dev_dbg(&client->dev, "\t%sGP%s%d\n", 469 data->gpio_config[i] & 0x02 ? "" : "!", 470 data->gpio_config[i] & 0x01 ? "OUT" : "IN", 471 i); 472 } 473 if (data->config3 & CFG3_GPIO16_ENABLE) { 474 dev_dbg(&client->dev, "\t%sGP%s16\n", 475 data->gpio_config[16] & 0x02 ? "" : "!", 476 data->gpio_config[16] & 0x01 ? "OUT" : "IN"); 477 } else { 478 /* GPIO16 is THERM */ 479 dev_dbg(&client->dev, "\tTHERM\n"); 480 } 481 } 482 483 static void adm1026_fixup_gpio(struct i2c_client *client) 484 { 485 struct adm1026_data *data = i2c_get_clientdata(client); 486 int i; 487 int value; 488 489 /* Make the changes requested. */ 490 /* We may need to unlock/stop monitoring or soft-reset the 491 * chip before we can make changes. This hasn't been 492 * tested much. FIXME 493 */ 494 495 /* Make outputs */ 496 for (i = 0;i <= 16;++i) { 497 if (gpio_output[i] >= 0 && gpio_output[i] <= 16) { 498 data->gpio_config[gpio_output[i]] |= 0x01; 499 } 500 /* if GPIO0-7 is output, it isn't a FAN tach */ 501 if (gpio_output[i] >= 0 && gpio_output[i] <= 7) { 502 data->config2 |= 1 << gpio_output[i]; 503 } 504 } 505 506 /* Input overrides output */ 507 for (i = 0;i <= 16;++i) { 508 if (gpio_input[i] >= 0 && gpio_input[i] <= 16) { 509 data->gpio_config[gpio_input[i]] &= ~ 0x01; 510 } 511 /* if GPIO0-7 is input, it isn't a FAN tach */ 512 if (gpio_input[i] >= 0 && gpio_input[i] <= 7) { 513 data->config2 |= 1 << gpio_input[i]; 514 } 515 } 516 517 /* Inverted */ 518 for (i = 0;i <= 16;++i) { 519 if (gpio_inverted[i] >= 0 && gpio_inverted[i] <= 16) { 520 data->gpio_config[gpio_inverted[i]] &= ~ 0x02; 521 } 522 } 523 524 /* Normal overrides inverted */ 525 for (i = 0;i <= 16;++i) { 526 if (gpio_normal[i] >= 0 && gpio_normal[i] <= 16) { 527 data->gpio_config[gpio_normal[i]] |= 0x02; 528 } 529 } 530 531 /* Fan overrides input and output */ 532 for (i = 0;i <= 7;++i) { 533 if (gpio_fan[i] >= 0 && gpio_fan[i] <= 7) { 534 data->config2 &= ~(1 << gpio_fan[i]); 535 } 536 } 537 538 /* Write new configs to registers */ 539 adm1026_write_value(client, ADM1026_REG_CONFIG2, data->config2); 540 data->config3 = (data->config3 & 0x3f) 541 | ((data->gpio_config[16] & 0x03) << 6); 542 adm1026_write_value(client, ADM1026_REG_CONFIG3, data->config3); 543 for (i = 15, value = 0;i >= 0;--i) { 544 value <<= 2; 545 value |= data->gpio_config[i] & 0x03; 546 if ((i & 0x03) == 0) { 547 adm1026_write_value(client, 548 ADM1026_REG_GPIO_CFG_0_3 + i/4, 549 value); 550 value = 0; 551 } 552 } 553 554 /* Print the new config */ 555 adm1026_print_gpio(client); 556 } 557 558 559 static struct adm1026_data *adm1026_update_device(struct device *dev) 560 { 561 struct i2c_client *client = to_i2c_client(dev); 562 struct adm1026_data *data = i2c_get_clientdata(client); 563 int i; 564 long value, alarms, gpio; 565 566 mutex_lock(&data->update_lock); 567 if (!data->valid 568 || time_after(jiffies, data->last_reading + ADM1026_DATA_INTERVAL)) { 569 /* Things that change quickly */ 570 dev_dbg(&client->dev, "Reading sensor values\n"); 571 for (i = 0;i <= 16;++i) { 572 data->in[i] = 573 adm1026_read_value(client, ADM1026_REG_IN[i]); 574 } 575 576 for (i = 0;i <= 7;++i) { 577 data->fan[i] = 578 adm1026_read_value(client, ADM1026_REG_FAN(i)); 579 } 580 581 for (i = 0;i <= 2;++i) { 582 /* NOTE: temp[] is s8 and we assume 2's complement 583 * "conversion" in the assignment */ 584 data->temp[i] = 585 adm1026_read_value(client, ADM1026_REG_TEMP[i]); 586 } 587 588 data->pwm1.pwm = adm1026_read_value(client, 589 ADM1026_REG_PWM); 590 data->analog_out = adm1026_read_value(client, 591 ADM1026_REG_DAC); 592 /* GPIO16 is MSbit of alarms, move it to gpio */ 593 alarms = adm1026_read_value(client, ADM1026_REG_STATUS4); 594 gpio = alarms & 0x80 ? 0x0100 : 0; /* GPIO16 */ 595 alarms &= 0x7f; 596 alarms <<= 8; 597 alarms |= adm1026_read_value(client, ADM1026_REG_STATUS3); 598 alarms <<= 8; 599 alarms |= adm1026_read_value(client, ADM1026_REG_STATUS2); 600 alarms <<= 8; 601 alarms |= adm1026_read_value(client, ADM1026_REG_STATUS1); 602 data->alarms = alarms; 603 604 /* Read the GPIO values */ 605 gpio |= adm1026_read_value(client, 606 ADM1026_REG_GPIO_STATUS_8_15); 607 gpio <<= 8; 608 gpio |= adm1026_read_value(client, 609 ADM1026_REG_GPIO_STATUS_0_7); 610 data->gpio = gpio; 611 612 data->last_reading = jiffies; 613 }; /* last_reading */ 614 615 if (!data->valid || 616 time_after(jiffies, data->last_config + ADM1026_CONFIG_INTERVAL)) { 617 /* Things that don't change often */ 618 dev_dbg(&client->dev, "Reading config values\n"); 619 for (i = 0;i <= 16;++i) { 620 data->in_min[i] = adm1026_read_value(client, 621 ADM1026_REG_IN_MIN[i]); 622 data->in_max[i] = adm1026_read_value(client, 623 ADM1026_REG_IN_MAX[i]); 624 } 625 626 value = adm1026_read_value(client, ADM1026_REG_FAN_DIV_0_3) 627 | (adm1026_read_value(client, ADM1026_REG_FAN_DIV_4_7) 628 << 8); 629 for (i = 0;i <= 7;++i) { 630 data->fan_min[i] = adm1026_read_value(client, 631 ADM1026_REG_FAN_MIN(i)); 632 data->fan_div[i] = DIV_FROM_REG(value & 0x03); 633 value >>= 2; 634 } 635 636 for (i = 0; i <= 2; ++i) { 637 /* NOTE: temp_xxx[] are s8 and we assume 2's 638 * complement "conversion" in the assignment 639 */ 640 data->temp_min[i] = adm1026_read_value(client, 641 ADM1026_REG_TEMP_MIN[i]); 642 data->temp_max[i] = adm1026_read_value(client, 643 ADM1026_REG_TEMP_MAX[i]); 644 data->temp_tmin[i] = adm1026_read_value(client, 645 ADM1026_REG_TEMP_TMIN[i]); 646 data->temp_crit[i] = adm1026_read_value(client, 647 ADM1026_REG_TEMP_THERM[i]); 648 data->temp_offset[i] = adm1026_read_value(client, 649 ADM1026_REG_TEMP_OFFSET[i]); 650 } 651 652 /* Read the STATUS/alarm masks */ 653 alarms = adm1026_read_value(client, ADM1026_REG_MASK4); 654 gpio = alarms & 0x80 ? 0x0100 : 0; /* GPIO16 */ 655 alarms = (alarms & 0x7f) << 8; 656 alarms |= adm1026_read_value(client, ADM1026_REG_MASK3); 657 alarms <<= 8; 658 alarms |= adm1026_read_value(client, ADM1026_REG_MASK2); 659 alarms <<= 8; 660 alarms |= adm1026_read_value(client, ADM1026_REG_MASK1); 661 data->alarm_mask = alarms; 662 663 /* Read the GPIO values */ 664 gpio |= adm1026_read_value(client, 665 ADM1026_REG_GPIO_MASK_8_15); 666 gpio <<= 8; 667 gpio |= adm1026_read_value(client, ADM1026_REG_GPIO_MASK_0_7); 668 data->gpio_mask = gpio; 669 670 /* Read various values from CONFIG1 */ 671 data->config1 = adm1026_read_value(client, 672 ADM1026_REG_CONFIG1); 673 if (data->config1 & CFG1_PWM_AFC) { 674 data->pwm1.enable = 2; 675 data->pwm1.auto_pwm_min = 676 PWM_MIN_FROM_REG(data->pwm1.pwm); 677 } 678 /* Read the GPIO config */ 679 data->config2 = adm1026_read_value(client, 680 ADM1026_REG_CONFIG2); 681 data->config3 = adm1026_read_value(client, 682 ADM1026_REG_CONFIG3); 683 data->gpio_config[16] = (data->config3 >> 6) & 0x03; 684 685 value = 0; 686 for (i = 0;i <= 15;++i) { 687 if ((i & 0x03) == 0) { 688 value = adm1026_read_value(client, 689 ADM1026_REG_GPIO_CFG_0_3 + i/4); 690 } 691 data->gpio_config[i] = value & 0x03; 692 value >>= 2; 693 } 694 695 data->last_config = jiffies; 696 }; /* last_config */ 697 698 dev_dbg(&client->dev, "Setting VID from GPIO11-15.\n"); 699 data->vid = (data->gpio >> 11) & 0x1f; 700 data->valid = 1; 701 mutex_unlock(&data->update_lock); 702 return data; 703 } 704 705 static ssize_t show_in(struct device *dev, struct device_attribute *attr, 706 char *buf) 707 { 708 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 709 int nr = sensor_attr->index; 710 struct adm1026_data *data = adm1026_update_device(dev); 711 return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in[nr])); 712 } 713 static ssize_t show_in_min(struct device *dev, struct device_attribute *attr, 714 char *buf) 715 { 716 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 717 int nr = sensor_attr->index; 718 struct adm1026_data *data = adm1026_update_device(dev); 719 return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in_min[nr])); 720 } 721 static ssize_t set_in_min(struct device *dev, struct device_attribute *attr, 722 const char *buf, size_t count) 723 { 724 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 725 int nr = sensor_attr->index; 726 struct i2c_client *client = to_i2c_client(dev); 727 struct adm1026_data *data = i2c_get_clientdata(client); 728 int val = simple_strtol(buf, NULL, 10); 729 730 mutex_lock(&data->update_lock); 731 data->in_min[nr] = INS_TO_REG(nr, val); 732 adm1026_write_value(client, ADM1026_REG_IN_MIN[nr], data->in_min[nr]); 733 mutex_unlock(&data->update_lock); 734 return count; 735 } 736 static ssize_t show_in_max(struct device *dev, struct device_attribute *attr, 737 char *buf) 738 { 739 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 740 int nr = sensor_attr->index; 741 struct adm1026_data *data = adm1026_update_device(dev); 742 return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in_max[nr])); 743 } 744 static ssize_t set_in_max(struct device *dev, struct device_attribute *attr, 745 const char *buf, size_t count) 746 { 747 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 748 int nr = sensor_attr->index; 749 struct i2c_client *client = to_i2c_client(dev); 750 struct adm1026_data *data = i2c_get_clientdata(client); 751 int val = simple_strtol(buf, NULL, 10); 752 753 mutex_lock(&data->update_lock); 754 data->in_max[nr] = INS_TO_REG(nr, val); 755 adm1026_write_value(client, ADM1026_REG_IN_MAX[nr], data->in_max[nr]); 756 mutex_unlock(&data->update_lock); 757 return count; 758 } 759 760 #define in_reg(offset) \ 761 static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, show_in, \ 762 NULL, offset); \ 763 static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \ 764 show_in_min, set_in_min, offset); \ 765 static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \ 766 show_in_max, set_in_max, offset); 767 768 769 in_reg(0); 770 in_reg(1); 771 in_reg(2); 772 in_reg(3); 773 in_reg(4); 774 in_reg(5); 775 in_reg(6); 776 in_reg(7); 777 in_reg(8); 778 in_reg(9); 779 in_reg(10); 780 in_reg(11); 781 in_reg(12); 782 in_reg(13); 783 in_reg(14); 784 in_reg(15); 785 786 static ssize_t show_in16(struct device *dev, struct device_attribute *attr, char *buf) 787 { 788 struct adm1026_data *data = adm1026_update_device(dev); 789 return sprintf(buf, "%d\n", INS_FROM_REG(16, data->in[16]) - 790 NEG12_OFFSET); 791 } 792 static ssize_t show_in16_min(struct device *dev, struct device_attribute *attr, char *buf) 793 { 794 struct adm1026_data *data = adm1026_update_device(dev); 795 return sprintf(buf, "%d\n", INS_FROM_REG(16, data->in_min[16]) 796 - NEG12_OFFSET); 797 } 798 static ssize_t set_in16_min(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) 799 { 800 struct i2c_client *client = to_i2c_client(dev); 801 struct adm1026_data *data = i2c_get_clientdata(client); 802 int val = simple_strtol(buf, NULL, 10); 803 804 mutex_lock(&data->update_lock); 805 data->in_min[16] = INS_TO_REG(16, val + NEG12_OFFSET); 806 adm1026_write_value(client, ADM1026_REG_IN_MIN[16], data->in_min[16]); 807 mutex_unlock(&data->update_lock); 808 return count; 809 } 810 static ssize_t show_in16_max(struct device *dev, struct device_attribute *attr, char *buf) 811 { 812 struct adm1026_data *data = adm1026_update_device(dev); 813 return sprintf(buf, "%d\n", INS_FROM_REG(16, data->in_max[16]) 814 - NEG12_OFFSET); 815 } 816 static ssize_t set_in16_max(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) 817 { 818 struct i2c_client *client = to_i2c_client(dev); 819 struct adm1026_data *data = i2c_get_clientdata(client); 820 int val = simple_strtol(buf, NULL, 10); 821 822 mutex_lock(&data->update_lock); 823 data->in_max[16] = INS_TO_REG(16, val+NEG12_OFFSET); 824 adm1026_write_value(client, ADM1026_REG_IN_MAX[16], data->in_max[16]); 825 mutex_unlock(&data->update_lock); 826 return count; 827 } 828 829 static SENSOR_DEVICE_ATTR(in16_input, S_IRUGO, show_in16, NULL, 16); 830 static SENSOR_DEVICE_ATTR(in16_min, S_IRUGO | S_IWUSR, show_in16_min, set_in16_min, 16); 831 static SENSOR_DEVICE_ATTR(in16_max, S_IRUGO | S_IWUSR, show_in16_max, set_in16_max, 16); 832 833 834 835 836 /* Now add fan read/write functions */ 837 838 static ssize_t show_fan(struct device *dev, struct device_attribute *attr, 839 char *buf) 840 { 841 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 842 int nr = sensor_attr->index; 843 struct adm1026_data *data = adm1026_update_device(dev); 844 return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[nr], 845 data->fan_div[nr])); 846 } 847 static ssize_t show_fan_min(struct device *dev, struct device_attribute *attr, 848 char *buf) 849 { 850 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 851 int nr = sensor_attr->index; 852 struct adm1026_data *data = adm1026_update_device(dev); 853 return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[nr], 854 data->fan_div[nr])); 855 } 856 static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr, 857 const char *buf, size_t count) 858 { 859 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 860 int nr = sensor_attr->index; 861 struct i2c_client *client = to_i2c_client(dev); 862 struct adm1026_data *data = i2c_get_clientdata(client); 863 int val = simple_strtol(buf, NULL, 10); 864 865 mutex_lock(&data->update_lock); 866 data->fan_min[nr] = FAN_TO_REG(val, data->fan_div[nr]); 867 adm1026_write_value(client, ADM1026_REG_FAN_MIN(nr), 868 data->fan_min[nr]); 869 mutex_unlock(&data->update_lock); 870 return count; 871 } 872 873 #define fan_offset(offset) \ 874 static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, show_fan, NULL, \ 875 offset - 1); \ 876 static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \ 877 show_fan_min, set_fan_min, offset - 1); 878 879 fan_offset(1); 880 fan_offset(2); 881 fan_offset(3); 882 fan_offset(4); 883 fan_offset(5); 884 fan_offset(6); 885 fan_offset(7); 886 fan_offset(8); 887 888 /* Adjust fan_min to account for new fan divisor */ 889 static void fixup_fan_min(struct device *dev, int fan, int old_div) 890 { 891 struct i2c_client *client = to_i2c_client(dev); 892 struct adm1026_data *data = i2c_get_clientdata(client); 893 int new_min; 894 int new_div = data->fan_div[fan]; 895 896 /* 0 and 0xff are special. Don't adjust them */ 897 if (data->fan_min[fan] == 0 || data->fan_min[fan] == 0xff) { 898 return; 899 } 900 901 new_min = data->fan_min[fan] * old_div / new_div; 902 new_min = SENSORS_LIMIT(new_min, 1, 254); 903 data->fan_min[fan] = new_min; 904 adm1026_write_value(client, ADM1026_REG_FAN_MIN(fan), new_min); 905 } 906 907 /* Now add fan_div read/write functions */ 908 static ssize_t show_fan_div(struct device *dev, struct device_attribute *attr, 909 char *buf) 910 { 911 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 912 int nr = sensor_attr->index; 913 struct adm1026_data *data = adm1026_update_device(dev); 914 return sprintf(buf, "%d\n", data->fan_div[nr]); 915 } 916 static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr, 917 const char *buf, size_t count) 918 { 919 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 920 int nr = sensor_attr->index; 921 struct i2c_client *client = to_i2c_client(dev); 922 struct adm1026_data *data = i2c_get_clientdata(client); 923 int val, orig_div, new_div, shift; 924 925 val = simple_strtol(buf, NULL, 10); 926 new_div = DIV_TO_REG(val); 927 if (new_div == 0) { 928 return -EINVAL; 929 } 930 mutex_lock(&data->update_lock); 931 orig_div = data->fan_div[nr]; 932 data->fan_div[nr] = DIV_FROM_REG(new_div); 933 934 if (nr < 4) { /* 0 <= nr < 4 */ 935 shift = 2 * nr; 936 adm1026_write_value(client, ADM1026_REG_FAN_DIV_0_3, 937 ((DIV_TO_REG(orig_div) & (~(0x03 << shift))) | 938 (new_div << shift))); 939 } else { /* 3 < nr < 8 */ 940 shift = 2 * (nr - 4); 941 adm1026_write_value(client, ADM1026_REG_FAN_DIV_4_7, 942 ((DIV_TO_REG(orig_div) & (~(0x03 << (2 * shift)))) | 943 (new_div << shift))); 944 } 945 946 if (data->fan_div[nr] != orig_div) { 947 fixup_fan_min(dev, nr, orig_div); 948 } 949 mutex_unlock(&data->update_lock); 950 return count; 951 } 952 953 #define fan_offset_div(offset) \ 954 static SENSOR_DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR, \ 955 show_fan_div, set_fan_div, offset - 1); 956 957 fan_offset_div(1); 958 fan_offset_div(2); 959 fan_offset_div(3); 960 fan_offset_div(4); 961 fan_offset_div(5); 962 fan_offset_div(6); 963 fan_offset_div(7); 964 fan_offset_div(8); 965 966 /* Temps */ 967 static ssize_t show_temp(struct device *dev, struct device_attribute *attr, 968 char *buf) 969 { 970 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 971 int nr = sensor_attr->index; 972 struct adm1026_data *data = adm1026_update_device(dev); 973 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[nr])); 974 } 975 static ssize_t show_temp_min(struct device *dev, struct device_attribute *attr, 976 char *buf) 977 { 978 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 979 int nr = sensor_attr->index; 980 struct adm1026_data *data = adm1026_update_device(dev); 981 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[nr])); 982 } 983 static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr, 984 const char *buf, size_t count) 985 { 986 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 987 int nr = sensor_attr->index; 988 struct i2c_client *client = to_i2c_client(dev); 989 struct adm1026_data *data = i2c_get_clientdata(client); 990 int val = simple_strtol(buf, NULL, 10); 991 992 mutex_lock(&data->update_lock); 993 data->temp_min[nr] = TEMP_TO_REG(val); 994 adm1026_write_value(client, ADM1026_REG_TEMP_MIN[nr], 995 data->temp_min[nr]); 996 mutex_unlock(&data->update_lock); 997 return count; 998 } 999 static ssize_t show_temp_max(struct device *dev, struct device_attribute *attr, 1000 char *buf) 1001 { 1002 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 1003 int nr = sensor_attr->index; 1004 struct adm1026_data *data = adm1026_update_device(dev); 1005 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[nr])); 1006 } 1007 static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr, 1008 const char *buf, size_t count) 1009 { 1010 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 1011 int nr = sensor_attr->index; 1012 struct i2c_client *client = to_i2c_client(dev); 1013 struct adm1026_data *data = i2c_get_clientdata(client); 1014 int val = simple_strtol(buf, NULL, 10); 1015 1016 mutex_lock(&data->update_lock); 1017 data->temp_max[nr] = TEMP_TO_REG(val); 1018 adm1026_write_value(client, ADM1026_REG_TEMP_MAX[nr], 1019 data->temp_max[nr]); 1020 mutex_unlock(&data->update_lock); 1021 return count; 1022 } 1023 1024 #define temp_reg(offset) \ 1025 static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, show_temp, \ 1026 NULL, offset - 1); \ 1027 static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR, \ 1028 show_temp_min, set_temp_min, offset - 1); \ 1029 static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \ 1030 show_temp_max, set_temp_max, offset - 1); 1031 1032 1033 temp_reg(1); 1034 temp_reg(2); 1035 temp_reg(3); 1036 1037 static ssize_t show_temp_offset(struct device *dev, 1038 struct device_attribute *attr, char *buf) 1039 { 1040 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 1041 int nr = sensor_attr->index; 1042 struct adm1026_data *data = adm1026_update_device(dev); 1043 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_offset[nr])); 1044 } 1045 static ssize_t set_temp_offset(struct device *dev, 1046 struct device_attribute *attr, const char *buf, 1047 size_t count) 1048 { 1049 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 1050 int nr = sensor_attr->index; 1051 struct i2c_client *client = to_i2c_client(dev); 1052 struct adm1026_data *data = i2c_get_clientdata(client); 1053 int val = simple_strtol(buf, NULL, 10); 1054 1055 mutex_lock(&data->update_lock); 1056 data->temp_offset[nr] = TEMP_TO_REG(val); 1057 adm1026_write_value(client, ADM1026_REG_TEMP_OFFSET[nr], 1058 data->temp_offset[nr]); 1059 mutex_unlock(&data->update_lock); 1060 return count; 1061 } 1062 1063 #define temp_offset_reg(offset) \ 1064 static SENSOR_DEVICE_ATTR(temp##offset##_offset, S_IRUGO | S_IWUSR, \ 1065 show_temp_offset, set_temp_offset, offset - 1); 1066 1067 temp_offset_reg(1); 1068 temp_offset_reg(2); 1069 temp_offset_reg(3); 1070 1071 static ssize_t show_temp_auto_point1_temp_hyst(struct device *dev, 1072 struct device_attribute *attr, char *buf) 1073 { 1074 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 1075 int nr = sensor_attr->index; 1076 struct adm1026_data *data = adm1026_update_device(dev); 1077 return sprintf(buf, "%d\n", TEMP_FROM_REG( 1078 ADM1026_FAN_ACTIVATION_TEMP_HYST + data->temp_tmin[nr])); 1079 } 1080 static ssize_t show_temp_auto_point2_temp(struct device *dev, 1081 struct device_attribute *attr, char *buf) 1082 { 1083 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 1084 int nr = sensor_attr->index; 1085 struct adm1026_data *data = adm1026_update_device(dev); 1086 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_tmin[nr] + 1087 ADM1026_FAN_CONTROL_TEMP_RANGE)); 1088 } 1089 static ssize_t show_temp_auto_point1_temp(struct device *dev, 1090 struct device_attribute *attr, char *buf) 1091 { 1092 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 1093 int nr = sensor_attr->index; 1094 struct adm1026_data *data = adm1026_update_device(dev); 1095 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_tmin[nr])); 1096 } 1097 static ssize_t set_temp_auto_point1_temp(struct device *dev, 1098 struct device_attribute *attr, const char *buf, size_t count) 1099 { 1100 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 1101 int nr = sensor_attr->index; 1102 struct i2c_client *client = to_i2c_client(dev); 1103 struct adm1026_data *data = i2c_get_clientdata(client); 1104 int val = simple_strtol(buf, NULL, 10); 1105 1106 mutex_lock(&data->update_lock); 1107 data->temp_tmin[nr] = TEMP_TO_REG(val); 1108 adm1026_write_value(client, ADM1026_REG_TEMP_TMIN[nr], 1109 data->temp_tmin[nr]); 1110 mutex_unlock(&data->update_lock); 1111 return count; 1112 } 1113 1114 #define temp_auto_point(offset) \ 1115 static SENSOR_DEVICE_ATTR(temp##offset##_auto_point1_temp, \ 1116 S_IRUGO | S_IWUSR, show_temp_auto_point1_temp, \ 1117 set_temp_auto_point1_temp, offset - 1); \ 1118 static SENSOR_DEVICE_ATTR(temp##offset##_auto_point1_temp_hyst, S_IRUGO,\ 1119 show_temp_auto_point1_temp_hyst, NULL, offset - 1); \ 1120 static SENSOR_DEVICE_ATTR(temp##offset##_auto_point2_temp, S_IRUGO, \ 1121 show_temp_auto_point2_temp, NULL, offset - 1); 1122 1123 temp_auto_point(1); 1124 temp_auto_point(2); 1125 temp_auto_point(3); 1126 1127 static ssize_t show_temp_crit_enable(struct device *dev, 1128 struct device_attribute *attr, char *buf) 1129 { 1130 struct adm1026_data *data = adm1026_update_device(dev); 1131 return sprintf(buf, "%d\n", (data->config1 & CFG1_THERM_HOT) >> 4); 1132 } 1133 static ssize_t set_temp_crit_enable(struct device *dev, 1134 struct device_attribute *attr, const char *buf, size_t count) 1135 { 1136 struct i2c_client *client = to_i2c_client(dev); 1137 struct adm1026_data *data = i2c_get_clientdata(client); 1138 int val = simple_strtol(buf, NULL, 10); 1139 1140 if ((val == 1) || (val==0)) { 1141 mutex_lock(&data->update_lock); 1142 data->config1 = (data->config1 & ~CFG1_THERM_HOT) | (val << 4); 1143 adm1026_write_value(client, ADM1026_REG_CONFIG1, 1144 data->config1); 1145 mutex_unlock(&data->update_lock); 1146 } 1147 return count; 1148 } 1149 1150 #define temp_crit_enable(offset) \ 1151 static DEVICE_ATTR(temp##offset##_crit_enable, S_IRUGO | S_IWUSR, \ 1152 show_temp_crit_enable, set_temp_crit_enable); 1153 1154 temp_crit_enable(1); 1155 temp_crit_enable(2); 1156 temp_crit_enable(3); 1157 1158 static ssize_t show_temp_crit(struct device *dev, 1159 struct device_attribute *attr, char *buf) 1160 { 1161 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 1162 int nr = sensor_attr->index; 1163 struct adm1026_data *data = adm1026_update_device(dev); 1164 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_crit[nr])); 1165 } 1166 static ssize_t set_temp_crit(struct device *dev, struct device_attribute *attr, 1167 const char *buf, size_t count) 1168 { 1169 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); 1170 int nr = sensor_attr->index; 1171 struct i2c_client *client = to_i2c_client(dev); 1172 struct adm1026_data *data = i2c_get_clientdata(client); 1173 int val = simple_strtol(buf, NULL, 10); 1174 1175 mutex_lock(&data->update_lock); 1176 data->temp_crit[nr] = TEMP_TO_REG(val); 1177 adm1026_write_value(client, ADM1026_REG_TEMP_THERM[nr], 1178 data->temp_crit[nr]); 1179 mutex_unlock(&data->update_lock); 1180 return count; 1181 } 1182 1183 #define temp_crit_reg(offset) \ 1184 static SENSOR_DEVICE_ATTR(temp##offset##_crit, S_IRUGO | S_IWUSR, \ 1185 show_temp_crit, set_temp_crit, offset - 1); 1186 1187 temp_crit_reg(1); 1188 temp_crit_reg(2); 1189 temp_crit_reg(3); 1190 1191 static ssize_t show_analog_out_reg(struct device *dev, struct device_attribute *attr, char *buf) 1192 { 1193 struct adm1026_data *data = adm1026_update_device(dev); 1194 return sprintf(buf, "%d\n", DAC_FROM_REG(data->analog_out)); 1195 } 1196 static ssize_t set_analog_out_reg(struct device *dev, struct device_attribute *attr, const char *buf, 1197 size_t count) 1198 { 1199 struct i2c_client *client = to_i2c_client(dev); 1200 struct adm1026_data *data = i2c_get_clientdata(client); 1201 int val = simple_strtol(buf, NULL, 10); 1202 1203 mutex_lock(&data->update_lock); 1204 data->analog_out = DAC_TO_REG(val); 1205 adm1026_write_value(client, ADM1026_REG_DAC, data->analog_out); 1206 mutex_unlock(&data->update_lock); 1207 return count; 1208 } 1209 1210 static DEVICE_ATTR(analog_out, S_IRUGO | S_IWUSR, show_analog_out_reg, 1211 set_analog_out_reg); 1212 1213 static ssize_t show_vid_reg(struct device *dev, struct device_attribute *attr, char *buf) 1214 { 1215 struct adm1026_data *data = adm1026_update_device(dev); 1216 return sprintf(buf, "%d\n", vid_from_reg(data->vid & 0x3f, data->vrm)); 1217 } 1218 static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL); 1219 1220 static ssize_t show_vrm_reg(struct device *dev, struct device_attribute *attr, char *buf) 1221 { 1222 struct adm1026_data *data = dev_get_drvdata(dev); 1223 return sprintf(buf, "%d\n", data->vrm); 1224 } 1225 static ssize_t store_vrm_reg(struct device *dev, struct device_attribute *attr, const char *buf, 1226 size_t count) 1227 { 1228 struct adm1026_data *data = dev_get_drvdata(dev); 1229 1230 data->vrm = simple_strtol(buf, NULL, 10); 1231 return count; 1232 } 1233 1234 static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg); 1235 1236 static ssize_t show_alarms_reg(struct device *dev, struct device_attribute *attr, char *buf) 1237 { 1238 struct adm1026_data *data = adm1026_update_device(dev); 1239 return sprintf(buf, "%ld\n", data->alarms); 1240 } 1241 1242 static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL); 1243 1244 static ssize_t show_alarm(struct device *dev, struct device_attribute *attr, 1245 char *buf) 1246 { 1247 struct adm1026_data *data = adm1026_update_device(dev); 1248 int bitnr = to_sensor_dev_attr(attr)->index; 1249 return sprintf(buf, "%ld\n", (data->alarms >> bitnr) & 1); 1250 } 1251 1252 static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 0); 1253 static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 1); 1254 static SENSOR_DEVICE_ATTR(in9_alarm, S_IRUGO, show_alarm, NULL, 1); 1255 static SENSOR_DEVICE_ATTR(in11_alarm, S_IRUGO, show_alarm, NULL, 2); 1256 static SENSOR_DEVICE_ATTR(in12_alarm, S_IRUGO, show_alarm, NULL, 3); 1257 static SENSOR_DEVICE_ATTR(in13_alarm, S_IRUGO, show_alarm, NULL, 4); 1258 static SENSOR_DEVICE_ATTR(in14_alarm, S_IRUGO, show_alarm, NULL, 5); 1259 static SENSOR_DEVICE_ATTR(in15_alarm, S_IRUGO, show_alarm, NULL, 6); 1260 static SENSOR_DEVICE_ATTR(in16_alarm, S_IRUGO, show_alarm, NULL, 7); 1261 static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 8); 1262 static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 9); 1263 static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 10); 1264 static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 11); 1265 static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 12); 1266 static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 13); 1267 static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 14); 1268 static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 15); 1269 static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 16); 1270 static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 17); 1271 static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 18); 1272 static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 19); 1273 static SENSOR_DEVICE_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 20); 1274 static SENSOR_DEVICE_ATTR(fan6_alarm, S_IRUGO, show_alarm, NULL, 21); 1275 static SENSOR_DEVICE_ATTR(fan7_alarm, S_IRUGO, show_alarm, NULL, 22); 1276 static SENSOR_DEVICE_ATTR(fan8_alarm, S_IRUGO, show_alarm, NULL, 23); 1277 static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 24); 1278 static SENSOR_DEVICE_ATTR(in10_alarm, S_IRUGO, show_alarm, NULL, 25); 1279 static SENSOR_DEVICE_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 26); 1280 1281 static ssize_t show_alarm_mask(struct device *dev, struct device_attribute *attr, char *buf) 1282 { 1283 struct adm1026_data *data = adm1026_update_device(dev); 1284 return sprintf(buf, "%ld\n", data->alarm_mask); 1285 } 1286 static ssize_t set_alarm_mask(struct device *dev, struct device_attribute *attr, const char *buf, 1287 size_t count) 1288 { 1289 struct i2c_client *client = to_i2c_client(dev); 1290 struct adm1026_data *data = i2c_get_clientdata(client); 1291 int val = simple_strtol(buf, NULL, 10); 1292 unsigned long mask; 1293 1294 mutex_lock(&data->update_lock); 1295 data->alarm_mask = val & 0x7fffffff; 1296 mask = data->alarm_mask 1297 | (data->gpio_mask & 0x10000 ? 0x80000000 : 0); 1298 adm1026_write_value(client, ADM1026_REG_MASK1, 1299 mask & 0xff); 1300 mask >>= 8; 1301 adm1026_write_value(client, ADM1026_REG_MASK2, 1302 mask & 0xff); 1303 mask >>= 8; 1304 adm1026_write_value(client, ADM1026_REG_MASK3, 1305 mask & 0xff); 1306 mask >>= 8; 1307 adm1026_write_value(client, ADM1026_REG_MASK4, 1308 mask & 0xff); 1309 mutex_unlock(&data->update_lock); 1310 return count; 1311 } 1312 1313 static DEVICE_ATTR(alarm_mask, S_IRUGO | S_IWUSR, show_alarm_mask, 1314 set_alarm_mask); 1315 1316 1317 static ssize_t show_gpio(struct device *dev, struct device_attribute *attr, char *buf) 1318 { 1319 struct adm1026_data *data = adm1026_update_device(dev); 1320 return sprintf(buf, "%ld\n", data->gpio); 1321 } 1322 static ssize_t set_gpio(struct device *dev, struct device_attribute *attr, const char *buf, 1323 size_t count) 1324 { 1325 struct i2c_client *client = to_i2c_client(dev); 1326 struct adm1026_data *data = i2c_get_clientdata(client); 1327 int val = simple_strtol(buf, NULL, 10); 1328 long gpio; 1329 1330 mutex_lock(&data->update_lock); 1331 data->gpio = val & 0x1ffff; 1332 gpio = data->gpio; 1333 adm1026_write_value(client, ADM1026_REG_GPIO_STATUS_0_7, gpio & 0xff); 1334 gpio >>= 8; 1335 adm1026_write_value(client, ADM1026_REG_GPIO_STATUS_8_15, gpio & 0xff); 1336 gpio = ((gpio >> 1) & 0x80) | (data->alarms >> 24 & 0x7f); 1337 adm1026_write_value(client, ADM1026_REG_STATUS4, gpio & 0xff); 1338 mutex_unlock(&data->update_lock); 1339 return count; 1340 } 1341 1342 static DEVICE_ATTR(gpio, S_IRUGO | S_IWUSR, show_gpio, set_gpio); 1343 1344 1345 static ssize_t show_gpio_mask(struct device *dev, struct device_attribute *attr, char *buf) 1346 { 1347 struct adm1026_data *data = adm1026_update_device(dev); 1348 return sprintf(buf, "%ld\n", data->gpio_mask); 1349 } 1350 static ssize_t set_gpio_mask(struct device *dev, struct device_attribute *attr, const char *buf, 1351 size_t count) 1352 { 1353 struct i2c_client *client = to_i2c_client(dev); 1354 struct adm1026_data *data = i2c_get_clientdata(client); 1355 int val = simple_strtol(buf, NULL, 10); 1356 long mask; 1357 1358 mutex_lock(&data->update_lock); 1359 data->gpio_mask = val & 0x1ffff; 1360 mask = data->gpio_mask; 1361 adm1026_write_value(client, ADM1026_REG_GPIO_MASK_0_7, mask & 0xff); 1362 mask >>= 8; 1363 adm1026_write_value(client, ADM1026_REG_GPIO_MASK_8_15, mask & 0xff); 1364 mask = ((mask >> 1) & 0x80) | (data->alarm_mask >> 24 & 0x7f); 1365 adm1026_write_value(client, ADM1026_REG_MASK1, mask & 0xff); 1366 mutex_unlock(&data->update_lock); 1367 return count; 1368 } 1369 1370 static DEVICE_ATTR(gpio_mask, S_IRUGO | S_IWUSR, show_gpio_mask, set_gpio_mask); 1371 1372 static ssize_t show_pwm_reg(struct device *dev, struct device_attribute *attr, char *buf) 1373 { 1374 struct adm1026_data *data = adm1026_update_device(dev); 1375 return sprintf(buf, "%d\n", PWM_FROM_REG(data->pwm1.pwm)); 1376 } 1377 static ssize_t set_pwm_reg(struct device *dev, struct device_attribute *attr, const char *buf, 1378 size_t count) 1379 { 1380 struct i2c_client *client = to_i2c_client(dev); 1381 struct adm1026_data *data = i2c_get_clientdata(client); 1382 1383 if (data->pwm1.enable == 1) { 1384 int val = simple_strtol(buf, NULL, 10); 1385 1386 mutex_lock(&data->update_lock); 1387 data->pwm1.pwm = PWM_TO_REG(val); 1388 adm1026_write_value(client, ADM1026_REG_PWM, data->pwm1.pwm); 1389 mutex_unlock(&data->update_lock); 1390 } 1391 return count; 1392 } 1393 static ssize_t show_auto_pwm_min(struct device *dev, struct device_attribute *attr, char *buf) 1394 { 1395 struct adm1026_data *data = adm1026_update_device(dev); 1396 return sprintf(buf, "%d\n", data->pwm1.auto_pwm_min); 1397 } 1398 static ssize_t set_auto_pwm_min(struct device *dev, struct device_attribute *attr, const char *buf, 1399 size_t count) 1400 { 1401 struct i2c_client *client = to_i2c_client(dev); 1402 struct adm1026_data *data = i2c_get_clientdata(client); 1403 int val = simple_strtol(buf, NULL, 10); 1404 1405 mutex_lock(&data->update_lock); 1406 data->pwm1.auto_pwm_min = SENSORS_LIMIT(val, 0, 255); 1407 if (data->pwm1.enable == 2) { /* apply immediately */ 1408 data->pwm1.pwm = PWM_TO_REG((data->pwm1.pwm & 0x0f) | 1409 PWM_MIN_TO_REG(data->pwm1.auto_pwm_min)); 1410 adm1026_write_value(client, ADM1026_REG_PWM, data->pwm1.pwm); 1411 } 1412 mutex_unlock(&data->update_lock); 1413 return count; 1414 } 1415 static ssize_t show_auto_pwm_max(struct device *dev, struct device_attribute *attr, char *buf) 1416 { 1417 return sprintf(buf, "%d\n", ADM1026_PWM_MAX); 1418 } 1419 static ssize_t show_pwm_enable(struct device *dev, struct device_attribute *attr, char *buf) 1420 { 1421 struct adm1026_data *data = adm1026_update_device(dev); 1422 return sprintf(buf, "%d\n", data->pwm1.enable); 1423 } 1424 static ssize_t set_pwm_enable(struct device *dev, struct device_attribute *attr, const char *buf, 1425 size_t count) 1426 { 1427 struct i2c_client *client = to_i2c_client(dev); 1428 struct adm1026_data *data = i2c_get_clientdata(client); 1429 int val = simple_strtol(buf, NULL, 10); 1430 int old_enable; 1431 1432 if ((val >= 0) && (val < 3)) { 1433 mutex_lock(&data->update_lock); 1434 old_enable = data->pwm1.enable; 1435 data->pwm1.enable = val; 1436 data->config1 = (data->config1 & ~CFG1_PWM_AFC) 1437 | ((val == 2) ? CFG1_PWM_AFC : 0); 1438 adm1026_write_value(client, ADM1026_REG_CONFIG1, 1439 data->config1); 1440 if (val == 2) { /* apply pwm1_auto_pwm_min to pwm1 */ 1441 data->pwm1.pwm = PWM_TO_REG((data->pwm1.pwm & 0x0f) | 1442 PWM_MIN_TO_REG(data->pwm1.auto_pwm_min)); 1443 adm1026_write_value(client, ADM1026_REG_PWM, 1444 data->pwm1.pwm); 1445 } else if (!((old_enable == 1) && (val == 1))) { 1446 /* set pwm to safe value */ 1447 data->pwm1.pwm = 255; 1448 adm1026_write_value(client, ADM1026_REG_PWM, 1449 data->pwm1.pwm); 1450 } 1451 mutex_unlock(&data->update_lock); 1452 } 1453 return count; 1454 } 1455 1456 /* enable PWM fan control */ 1457 static DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, show_pwm_reg, set_pwm_reg); 1458 static DEVICE_ATTR(pwm2, S_IRUGO | S_IWUSR, show_pwm_reg, set_pwm_reg); 1459 static DEVICE_ATTR(pwm3, S_IRUGO | S_IWUSR, show_pwm_reg, set_pwm_reg); 1460 static DEVICE_ATTR(pwm1_enable, S_IRUGO | S_IWUSR, show_pwm_enable, 1461 set_pwm_enable); 1462 static DEVICE_ATTR(pwm2_enable, S_IRUGO | S_IWUSR, show_pwm_enable, 1463 set_pwm_enable); 1464 static DEVICE_ATTR(pwm3_enable, S_IRUGO | S_IWUSR, show_pwm_enable, 1465 set_pwm_enable); 1466 static DEVICE_ATTR(temp1_auto_point1_pwm, S_IRUGO | S_IWUSR, 1467 show_auto_pwm_min, set_auto_pwm_min); 1468 static DEVICE_ATTR(temp2_auto_point1_pwm, S_IRUGO | S_IWUSR, 1469 show_auto_pwm_min, set_auto_pwm_min); 1470 static DEVICE_ATTR(temp3_auto_point1_pwm, S_IRUGO | S_IWUSR, 1471 show_auto_pwm_min, set_auto_pwm_min); 1472 1473 static DEVICE_ATTR(temp1_auto_point2_pwm, S_IRUGO, show_auto_pwm_max, NULL); 1474 static DEVICE_ATTR(temp2_auto_point2_pwm, S_IRUGO, show_auto_pwm_max, NULL); 1475 static DEVICE_ATTR(temp3_auto_point2_pwm, S_IRUGO, show_auto_pwm_max, NULL); 1476 1477 static struct attribute *adm1026_attributes[] = { 1478 &sensor_dev_attr_in0_input.dev_attr.attr, 1479 &sensor_dev_attr_in0_max.dev_attr.attr, 1480 &sensor_dev_attr_in0_min.dev_attr.attr, 1481 &sensor_dev_attr_in0_alarm.dev_attr.attr, 1482 &sensor_dev_attr_in1_input.dev_attr.attr, 1483 &sensor_dev_attr_in1_max.dev_attr.attr, 1484 &sensor_dev_attr_in1_min.dev_attr.attr, 1485 &sensor_dev_attr_in1_alarm.dev_attr.attr, 1486 &sensor_dev_attr_in2_input.dev_attr.attr, 1487 &sensor_dev_attr_in2_max.dev_attr.attr, 1488 &sensor_dev_attr_in2_min.dev_attr.attr, 1489 &sensor_dev_attr_in2_alarm.dev_attr.attr, 1490 &sensor_dev_attr_in3_input.dev_attr.attr, 1491 &sensor_dev_attr_in3_max.dev_attr.attr, 1492 &sensor_dev_attr_in3_min.dev_attr.attr, 1493 &sensor_dev_attr_in3_alarm.dev_attr.attr, 1494 &sensor_dev_attr_in4_input.dev_attr.attr, 1495 &sensor_dev_attr_in4_max.dev_attr.attr, 1496 &sensor_dev_attr_in4_min.dev_attr.attr, 1497 &sensor_dev_attr_in4_alarm.dev_attr.attr, 1498 &sensor_dev_attr_in5_input.dev_attr.attr, 1499 &sensor_dev_attr_in5_max.dev_attr.attr, 1500 &sensor_dev_attr_in5_min.dev_attr.attr, 1501 &sensor_dev_attr_in5_alarm.dev_attr.attr, 1502 &sensor_dev_attr_in6_input.dev_attr.attr, 1503 &sensor_dev_attr_in6_max.dev_attr.attr, 1504 &sensor_dev_attr_in6_min.dev_attr.attr, 1505 &sensor_dev_attr_in6_alarm.dev_attr.attr, 1506 &sensor_dev_attr_in7_input.dev_attr.attr, 1507 &sensor_dev_attr_in7_max.dev_attr.attr, 1508 &sensor_dev_attr_in7_min.dev_attr.attr, 1509 &sensor_dev_attr_in7_alarm.dev_attr.attr, 1510 &sensor_dev_attr_in10_input.dev_attr.attr, 1511 &sensor_dev_attr_in10_max.dev_attr.attr, 1512 &sensor_dev_attr_in10_min.dev_attr.attr, 1513 &sensor_dev_attr_in10_alarm.dev_attr.attr, 1514 &sensor_dev_attr_in11_input.dev_attr.attr, 1515 &sensor_dev_attr_in11_max.dev_attr.attr, 1516 &sensor_dev_attr_in11_min.dev_attr.attr, 1517 &sensor_dev_attr_in11_alarm.dev_attr.attr, 1518 &sensor_dev_attr_in12_input.dev_attr.attr, 1519 &sensor_dev_attr_in12_max.dev_attr.attr, 1520 &sensor_dev_attr_in12_min.dev_attr.attr, 1521 &sensor_dev_attr_in12_alarm.dev_attr.attr, 1522 &sensor_dev_attr_in13_input.dev_attr.attr, 1523 &sensor_dev_attr_in13_max.dev_attr.attr, 1524 &sensor_dev_attr_in13_min.dev_attr.attr, 1525 &sensor_dev_attr_in13_alarm.dev_attr.attr, 1526 &sensor_dev_attr_in14_input.dev_attr.attr, 1527 &sensor_dev_attr_in14_max.dev_attr.attr, 1528 &sensor_dev_attr_in14_min.dev_attr.attr, 1529 &sensor_dev_attr_in14_alarm.dev_attr.attr, 1530 &sensor_dev_attr_in15_input.dev_attr.attr, 1531 &sensor_dev_attr_in15_max.dev_attr.attr, 1532 &sensor_dev_attr_in15_min.dev_attr.attr, 1533 &sensor_dev_attr_in15_alarm.dev_attr.attr, 1534 &sensor_dev_attr_in16_input.dev_attr.attr, 1535 &sensor_dev_attr_in16_max.dev_attr.attr, 1536 &sensor_dev_attr_in16_min.dev_attr.attr, 1537 &sensor_dev_attr_in16_alarm.dev_attr.attr, 1538 &sensor_dev_attr_fan1_input.dev_attr.attr, 1539 &sensor_dev_attr_fan1_div.dev_attr.attr, 1540 &sensor_dev_attr_fan1_min.dev_attr.attr, 1541 &sensor_dev_attr_fan1_alarm.dev_attr.attr, 1542 &sensor_dev_attr_fan2_input.dev_attr.attr, 1543 &sensor_dev_attr_fan2_div.dev_attr.attr, 1544 &sensor_dev_attr_fan2_min.dev_attr.attr, 1545 &sensor_dev_attr_fan2_alarm.dev_attr.attr, 1546 &sensor_dev_attr_fan3_input.dev_attr.attr, 1547 &sensor_dev_attr_fan3_div.dev_attr.attr, 1548 &sensor_dev_attr_fan3_min.dev_attr.attr, 1549 &sensor_dev_attr_fan3_alarm.dev_attr.attr, 1550 &sensor_dev_attr_fan4_input.dev_attr.attr, 1551 &sensor_dev_attr_fan4_div.dev_attr.attr, 1552 &sensor_dev_attr_fan4_min.dev_attr.attr, 1553 &sensor_dev_attr_fan4_alarm.dev_attr.attr, 1554 &sensor_dev_attr_fan5_input.dev_attr.attr, 1555 &sensor_dev_attr_fan5_div.dev_attr.attr, 1556 &sensor_dev_attr_fan5_min.dev_attr.attr, 1557 &sensor_dev_attr_fan5_alarm.dev_attr.attr, 1558 &sensor_dev_attr_fan6_input.dev_attr.attr, 1559 &sensor_dev_attr_fan6_div.dev_attr.attr, 1560 &sensor_dev_attr_fan6_min.dev_attr.attr, 1561 &sensor_dev_attr_fan6_alarm.dev_attr.attr, 1562 &sensor_dev_attr_fan7_input.dev_attr.attr, 1563 &sensor_dev_attr_fan7_div.dev_attr.attr, 1564 &sensor_dev_attr_fan7_min.dev_attr.attr, 1565 &sensor_dev_attr_fan7_alarm.dev_attr.attr, 1566 &sensor_dev_attr_fan8_input.dev_attr.attr, 1567 &sensor_dev_attr_fan8_div.dev_attr.attr, 1568 &sensor_dev_attr_fan8_min.dev_attr.attr, 1569 &sensor_dev_attr_fan8_alarm.dev_attr.attr, 1570 &sensor_dev_attr_temp1_input.dev_attr.attr, 1571 &sensor_dev_attr_temp1_max.dev_attr.attr, 1572 &sensor_dev_attr_temp1_min.dev_attr.attr, 1573 &sensor_dev_attr_temp1_alarm.dev_attr.attr, 1574 &sensor_dev_attr_temp2_input.dev_attr.attr, 1575 &sensor_dev_attr_temp2_max.dev_attr.attr, 1576 &sensor_dev_attr_temp2_min.dev_attr.attr, 1577 &sensor_dev_attr_temp2_alarm.dev_attr.attr, 1578 &sensor_dev_attr_temp1_offset.dev_attr.attr, 1579 &sensor_dev_attr_temp2_offset.dev_attr.attr, 1580 &sensor_dev_attr_temp1_auto_point1_temp.dev_attr.attr, 1581 &sensor_dev_attr_temp2_auto_point1_temp.dev_attr.attr, 1582 &sensor_dev_attr_temp1_auto_point1_temp_hyst.dev_attr.attr, 1583 &sensor_dev_attr_temp2_auto_point1_temp_hyst.dev_attr.attr, 1584 &sensor_dev_attr_temp1_auto_point2_temp.dev_attr.attr, 1585 &sensor_dev_attr_temp2_auto_point2_temp.dev_attr.attr, 1586 &sensor_dev_attr_temp1_crit.dev_attr.attr, 1587 &sensor_dev_attr_temp2_crit.dev_attr.attr, 1588 &dev_attr_temp1_crit_enable.attr, 1589 &dev_attr_temp2_crit_enable.attr, 1590 &dev_attr_cpu0_vid.attr, 1591 &dev_attr_vrm.attr, 1592 &dev_attr_alarms.attr, 1593 &dev_attr_alarm_mask.attr, 1594 &dev_attr_gpio.attr, 1595 &dev_attr_gpio_mask.attr, 1596 &dev_attr_pwm1.attr, 1597 &dev_attr_pwm2.attr, 1598 &dev_attr_pwm3.attr, 1599 &dev_attr_pwm1_enable.attr, 1600 &dev_attr_pwm2_enable.attr, 1601 &dev_attr_pwm3_enable.attr, 1602 &dev_attr_temp1_auto_point1_pwm.attr, 1603 &dev_attr_temp2_auto_point1_pwm.attr, 1604 &dev_attr_temp1_auto_point2_pwm.attr, 1605 &dev_attr_temp2_auto_point2_pwm.attr, 1606 &dev_attr_analog_out.attr, 1607 NULL 1608 }; 1609 1610 static const struct attribute_group adm1026_group = { 1611 .attrs = adm1026_attributes, 1612 }; 1613 1614 static struct attribute *adm1026_attributes_temp3[] = { 1615 &sensor_dev_attr_temp3_input.dev_attr.attr, 1616 &sensor_dev_attr_temp3_max.dev_attr.attr, 1617 &sensor_dev_attr_temp3_min.dev_attr.attr, 1618 &sensor_dev_attr_temp3_alarm.dev_attr.attr, 1619 &sensor_dev_attr_temp3_offset.dev_attr.attr, 1620 &sensor_dev_attr_temp3_auto_point1_temp.dev_attr.attr, 1621 &sensor_dev_attr_temp3_auto_point1_temp_hyst.dev_attr.attr, 1622 &sensor_dev_attr_temp3_auto_point2_temp.dev_attr.attr, 1623 &sensor_dev_attr_temp3_crit.dev_attr.attr, 1624 &dev_attr_temp3_crit_enable.attr, 1625 &dev_attr_temp3_auto_point1_pwm.attr, 1626 &dev_attr_temp3_auto_point2_pwm.attr, 1627 NULL 1628 }; 1629 1630 static const struct attribute_group adm1026_group_temp3 = { 1631 .attrs = adm1026_attributes_temp3, 1632 }; 1633 1634 static struct attribute *adm1026_attributes_in8_9[] = { 1635 &sensor_dev_attr_in8_input.dev_attr.attr, 1636 &sensor_dev_attr_in8_max.dev_attr.attr, 1637 &sensor_dev_attr_in8_min.dev_attr.attr, 1638 &sensor_dev_attr_in8_alarm.dev_attr.attr, 1639 &sensor_dev_attr_in9_input.dev_attr.attr, 1640 &sensor_dev_attr_in9_max.dev_attr.attr, 1641 &sensor_dev_attr_in9_min.dev_attr.attr, 1642 &sensor_dev_attr_in9_alarm.dev_attr.attr, 1643 NULL 1644 }; 1645 1646 static const struct attribute_group adm1026_group_in8_9 = { 1647 .attrs = adm1026_attributes_in8_9, 1648 }; 1649 1650 static int adm1026_detect(struct i2c_adapter *adapter, int address, 1651 int kind) 1652 { 1653 int company, verstep; 1654 struct i2c_client *client; 1655 struct adm1026_data *data; 1656 int err = 0; 1657 const char *type_name = ""; 1658 1659 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) { 1660 /* We need to be able to do byte I/O */ 1661 goto exit; 1662 }; 1663 1664 /* OK. For now, we presume we have a valid client. We now create the 1665 client structure, even though we cannot fill it completely yet. 1666 But it allows us to access adm1026_{read,write}_value. */ 1667 1668 if (!(data = kzalloc(sizeof(struct adm1026_data), GFP_KERNEL))) { 1669 err = -ENOMEM; 1670 goto exit; 1671 } 1672 1673 client = &data->client; 1674 i2c_set_clientdata(client, data); 1675 client->addr = address; 1676 client->adapter = adapter; 1677 client->driver = &adm1026_driver; 1678 1679 /* Now, we do the remaining detection. */ 1680 1681 company = adm1026_read_value(client, ADM1026_REG_COMPANY); 1682 verstep = adm1026_read_value(client, ADM1026_REG_VERSTEP); 1683 1684 dev_dbg(&client->dev, "Detecting device at %d,0x%02x with" 1685 " COMPANY: 0x%02x and VERSTEP: 0x%02x\n", 1686 i2c_adapter_id(client->adapter), client->addr, 1687 company, verstep); 1688 1689 /* If auto-detecting, Determine the chip type. */ 1690 if (kind <= 0) { 1691 dev_dbg(&client->dev, "Autodetecting device at %d,0x%02x " 1692 "...\n", i2c_adapter_id(adapter), address); 1693 if (company == ADM1026_COMPANY_ANALOG_DEV 1694 && verstep == ADM1026_VERSTEP_ADM1026) { 1695 kind = adm1026; 1696 } else if (company == ADM1026_COMPANY_ANALOG_DEV 1697 && (verstep & 0xf0) == ADM1026_VERSTEP_GENERIC) { 1698 dev_err(&adapter->dev, ": Unrecognized stepping " 1699 "0x%02x. Defaulting to ADM1026.\n", verstep); 1700 kind = adm1026; 1701 } else if ((verstep & 0xf0) == ADM1026_VERSTEP_GENERIC) { 1702 dev_err(&adapter->dev, ": Found version/stepping " 1703 "0x%02x. Assuming generic ADM1026.\n", 1704 verstep); 1705 kind = any_chip; 1706 } else { 1707 dev_dbg(&client->dev, ": Autodetection " 1708 "failed\n"); 1709 /* Not an ADM1026 ... */ 1710 if (kind == 0) { /* User used force=x,y */ 1711 dev_err(&adapter->dev, "Generic ADM1026 not " 1712 "found at %d,0x%02x. Try " 1713 "force_adm1026.\n", 1714 i2c_adapter_id(adapter), address); 1715 } 1716 goto exitfree; 1717 } 1718 } 1719 1720 /* Fill in the chip specific driver values */ 1721 switch (kind) { 1722 case any_chip : 1723 type_name = "adm1026"; 1724 break; 1725 case adm1026 : 1726 type_name = "adm1026"; 1727 break; 1728 default : 1729 dev_err(&adapter->dev, ": Internal error, invalid " 1730 "kind (%d)!\n", kind); 1731 err = -EFAULT; 1732 goto exitfree; 1733 } 1734 strlcpy(client->name, type_name, I2C_NAME_SIZE); 1735 1736 /* Fill in the remaining client fields */ 1737 mutex_init(&data->update_lock); 1738 1739 /* Tell the I2C layer a new client has arrived */ 1740 if ((err = i2c_attach_client(client))) 1741 goto exitfree; 1742 1743 /* Set the VRM version */ 1744 data->vrm = vid_which_vrm(); 1745 1746 /* Initialize the ADM1026 chip */ 1747 adm1026_init_client(client); 1748 1749 /* Register sysfs hooks */ 1750 if ((err = sysfs_create_group(&client->dev.kobj, &adm1026_group))) 1751 goto exitdetach; 1752 if (data->config1 & CFG1_AIN8_9) 1753 err = sysfs_create_group(&client->dev.kobj, 1754 &adm1026_group_in8_9); 1755 else 1756 err = sysfs_create_group(&client->dev.kobj, 1757 &adm1026_group_temp3); 1758 if (err) 1759 goto exitremove; 1760 1761 data->hwmon_dev = hwmon_device_register(&client->dev); 1762 if (IS_ERR(data->hwmon_dev)) { 1763 err = PTR_ERR(data->hwmon_dev); 1764 goto exitremove; 1765 } 1766 1767 return 0; 1768 1769 /* Error out and cleanup code */ 1770 exitremove: 1771 sysfs_remove_group(&client->dev.kobj, &adm1026_group); 1772 if (data->config1 & CFG1_AIN8_9) 1773 sysfs_remove_group(&client->dev.kobj, &adm1026_group_in8_9); 1774 else 1775 sysfs_remove_group(&client->dev.kobj, &adm1026_group_temp3); 1776 exitdetach: 1777 i2c_detach_client(client); 1778 exitfree: 1779 kfree(data); 1780 exit: 1781 return err; 1782 } 1783 1784 static int adm1026_detach_client(struct i2c_client *client) 1785 { 1786 struct adm1026_data *data = i2c_get_clientdata(client); 1787 hwmon_device_unregister(data->hwmon_dev); 1788 sysfs_remove_group(&client->dev.kobj, &adm1026_group); 1789 if (data->config1 & CFG1_AIN8_9) 1790 sysfs_remove_group(&client->dev.kobj, &adm1026_group_in8_9); 1791 else 1792 sysfs_remove_group(&client->dev.kobj, &adm1026_group_temp3); 1793 i2c_detach_client(client); 1794 kfree(data); 1795 return 0; 1796 } 1797 1798 static int __init sm_adm1026_init(void) 1799 { 1800 return i2c_add_driver(&adm1026_driver); 1801 } 1802 1803 static void __exit sm_adm1026_exit(void) 1804 { 1805 i2c_del_driver(&adm1026_driver); 1806 } 1807 1808 MODULE_LICENSE("GPL"); 1809 MODULE_AUTHOR("Philip Pokorny <ppokorny@penguincomputing.com>, " 1810 "Justin Thiessen <jthiessen@penguincomputing.com>"); 1811 MODULE_DESCRIPTION("ADM1026 driver"); 1812 1813 module_init(sm_adm1026_init); 1814 module_exit(sm_adm1026_exit); 1815