Guenter Roeck | 9de2e2e | 2012-05-20 19:29:48 -0700 | [diff] [blame] | 1 | /* |
| 2 | * nct6775 - Driver for the hardware monitoring functionality of |
| 3 | * Nuvoton NCT677x Super-I/O chips |
| 4 | * |
| 5 | * Copyright (C) 2012 Guenter Roeck <linux@roeck-us.net> |
| 6 | * |
| 7 | * Derived from w83627ehf driver |
| 8 | * Copyright (C) 2005-2012 Jean Delvare <khali@linux-fr.org> |
| 9 | * Copyright (C) 2006 Yuan Mu (Winbond), |
| 10 | * Rudolf Marek <r.marek@assembler.cz> |
| 11 | * David Hubbard <david.c.hubbard@gmail.com> |
| 12 | * Daniel J Blueman <daniel.blueman@gmail.com> |
| 13 | * Copyright (C) 2010 Sheng-Yuan Huang (Nuvoton) (PS00) |
| 14 | * |
| 15 | * Shamelessly ripped from the w83627hf driver |
| 16 | * Copyright (C) 2003 Mark Studebaker |
| 17 | * |
| 18 | * This program is free software; you can redistribute it and/or modify |
| 19 | * it under the terms of the GNU General Public License as published by |
| 20 | * the Free Software Foundation; either version 2 of the License, or |
| 21 | * (at your option) any later version. |
| 22 | * |
| 23 | * This program is distributed in the hope that it will be useful, |
| 24 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 25 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 26 | * GNU General Public License for more details. |
| 27 | * |
| 28 | * You should have received a copy of the GNU General Public License |
| 29 | * along with this program; if not, write to the Free Software |
| 30 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 31 | * |
| 32 | * |
| 33 | * Supports the following chips: |
| 34 | * |
| 35 | * Chip #vin #fan #pwm #temp chip IDs man ID |
| 36 | * nct6775f 9 4 3 6+3 0xb470 0xc1 0x5ca3 |
| 37 | * nct6776f 9 5 3 6+3 0xc330 0xc1 0x5ca3 |
| 38 | * nct6779d 15 5 5 2+6 0xc560 0xc1 0x5ca3 |
| 39 | * |
| 40 | * #temp lists the number of monitored temperature sources (first value) plus |
| 41 | * the number of directly connectable temperature sensors (second value). |
| 42 | */ |
| 43 | |
| 44 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
| 45 | |
| 46 | #include <linux/module.h> |
| 47 | #include <linux/init.h> |
| 48 | #include <linux/slab.h> |
| 49 | #include <linux/jiffies.h> |
| 50 | #include <linux/platform_device.h> |
| 51 | #include <linux/hwmon.h> |
| 52 | #include <linux/hwmon-sysfs.h> |
| 53 | #include <linux/hwmon-vid.h> |
| 54 | #include <linux/err.h> |
| 55 | #include <linux/mutex.h> |
| 56 | #include <linux/acpi.h> |
| 57 | #include <linux/io.h> |
| 58 | #include "lm75.h" |
| 59 | |
Guenter Roeck | aa136e5 | 2012-12-04 03:26:05 -0800 | [diff] [blame] | 60 | #define USE_ALTERNATE |
| 61 | |
Guenter Roeck | 9de2e2e | 2012-05-20 19:29:48 -0700 | [diff] [blame] | 62 | enum kinds { nct6775, nct6776, nct6779 }; |
| 63 | |
| 64 | /* used to set data->name = nct6775_device_names[data->sio_kind] */ |
| 65 | static const char * const nct6775_device_names[] = { |
| 66 | "nct6775", |
| 67 | "nct6776", |
| 68 | "nct6779", |
| 69 | }; |
| 70 | |
| 71 | static unsigned short force_id; |
| 72 | module_param(force_id, ushort, 0); |
| 73 | MODULE_PARM_DESC(force_id, "Override the detected device ID"); |
| 74 | |
| 75 | #define DRVNAME "nct6775" |
| 76 | |
| 77 | /* |
| 78 | * Super-I/O constants and functions |
| 79 | */ |
| 80 | |
Guenter Roeck | a6bd587 | 2012-12-04 03:13:34 -0800 | [diff] [blame] | 81 | #define NCT6775_LD_ACPI 0x0a |
Guenter Roeck | 9de2e2e | 2012-05-20 19:29:48 -0700 | [diff] [blame] | 82 | #define NCT6775_LD_HWM 0x0b |
| 83 | #define NCT6775_LD_VID 0x0d |
| 84 | |
| 85 | #define SIO_REG_LDSEL 0x07 /* Logical device select */ |
| 86 | #define SIO_REG_DEVID 0x20 /* Device ID (2 bytes) */ |
| 87 | #define SIO_REG_ENABLE 0x30 /* Logical device enable */ |
| 88 | #define SIO_REG_ADDR 0x60 /* Logical device address (2 bytes) */ |
| 89 | |
| 90 | #define SIO_NCT6775_ID 0xb470 |
| 91 | #define SIO_NCT6776_ID 0xc330 |
| 92 | #define SIO_NCT6779_ID 0xc560 |
| 93 | #define SIO_ID_MASK 0xFFF0 |
| 94 | |
| 95 | static inline void |
| 96 | superio_outb(int ioreg, int reg, int val) |
| 97 | { |
| 98 | outb(reg, ioreg); |
| 99 | outb(val, ioreg + 1); |
| 100 | } |
| 101 | |
| 102 | static inline int |
| 103 | superio_inb(int ioreg, int reg) |
| 104 | { |
| 105 | outb(reg, ioreg); |
| 106 | return inb(ioreg + 1); |
| 107 | } |
| 108 | |
| 109 | static inline void |
| 110 | superio_select(int ioreg, int ld) |
| 111 | { |
| 112 | outb(SIO_REG_LDSEL, ioreg); |
| 113 | outb(ld, ioreg + 1); |
| 114 | } |
| 115 | |
| 116 | static inline int |
| 117 | superio_enter(int ioreg) |
| 118 | { |
| 119 | /* |
| 120 | * Try to reserve <ioreg> and <ioreg + 1> for exclusive access. |
| 121 | */ |
| 122 | if (!request_muxed_region(ioreg, 2, DRVNAME)) |
| 123 | return -EBUSY; |
| 124 | |
| 125 | outb(0x87, ioreg); |
| 126 | outb(0x87, ioreg); |
| 127 | |
| 128 | return 0; |
| 129 | } |
| 130 | |
| 131 | static inline void |
| 132 | superio_exit(int ioreg) |
| 133 | { |
| 134 | outb(0xaa, ioreg); |
| 135 | outb(0x02, ioreg); |
| 136 | outb(0x02, ioreg + 1); |
| 137 | release_region(ioreg, 2); |
| 138 | } |
| 139 | |
| 140 | /* |
| 141 | * ISA constants |
| 142 | */ |
| 143 | |
| 144 | #define IOREGION_ALIGNMENT (~7) |
| 145 | #define IOREGION_OFFSET 5 |
| 146 | #define IOREGION_LENGTH 2 |
| 147 | #define ADDR_REG_OFFSET 0 |
| 148 | #define DATA_REG_OFFSET 1 |
| 149 | |
| 150 | #define NCT6775_REG_BANK 0x4E |
| 151 | #define NCT6775_REG_CONFIG 0x40 |
| 152 | |
| 153 | /* |
| 154 | * Not currently used: |
| 155 | * REG_MAN_ID has the value 0x5ca3 for all supported chips. |
| 156 | * REG_CHIP_ID == 0x88/0xa1/0xc1 depending on chip model. |
| 157 | * REG_MAN_ID is at port 0x4f |
| 158 | * REG_CHIP_ID is at port 0x58 |
| 159 | */ |
| 160 | |
Guenter Roeck | aa136e5 | 2012-12-04 03:26:05 -0800 | [diff] [blame] | 161 | #define NUM_TEMP 10 /* Max number of temp attribute sets w/ limits*/ |
| 162 | #define NUM_TEMP_FIXED 6 /* Max number of fixed temp attribute sets */ |
| 163 | |
Guenter Roeck | 9de2e2e | 2012-05-20 19:29:48 -0700 | [diff] [blame] | 164 | #define NUM_REG_ALARM 4 /* Max number of alarm registers */ |
| 165 | |
| 166 | /* Common and NCT6775 specific data */ |
| 167 | |
| 168 | /* Voltage min/max registers for nr=7..14 are in bank 5 */ |
| 169 | |
| 170 | static const u16 NCT6775_REG_IN_MAX[] = { |
| 171 | 0x2b, 0x2d, 0x2f, 0x31, 0x33, 0x35, 0x37, 0x554, 0x556, 0x558, 0x55a, |
| 172 | 0x55c, 0x55e, 0x560, 0x562 }; |
| 173 | static const u16 NCT6775_REG_IN_MIN[] = { |
| 174 | 0x2c, 0x2e, 0x30, 0x32, 0x34, 0x36, 0x38, 0x555, 0x557, 0x559, 0x55b, |
| 175 | 0x55d, 0x55f, 0x561, 0x563 }; |
| 176 | static const u16 NCT6775_REG_IN[] = { |
| 177 | 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x550, 0x551, 0x552 |
| 178 | }; |
| 179 | |
| 180 | #define NCT6775_REG_VBAT 0x5D |
Guenter Roeck | aa136e5 | 2012-12-04 03:26:05 -0800 | [diff] [blame] | 181 | #define NCT6775_REG_DIODE 0x5E |
Guenter Roeck | 9de2e2e | 2012-05-20 19:29:48 -0700 | [diff] [blame] | 182 | |
Guenter Roeck | 1c65dc3 | 2012-12-04 07:56:24 -0800 | [diff] [blame^] | 183 | #define NCT6775_REG_FANDIV1 0x506 |
| 184 | #define NCT6775_REG_FANDIV2 0x507 |
| 185 | |
Guenter Roeck | 9de2e2e | 2012-05-20 19:29:48 -0700 | [diff] [blame] | 186 | static const u16 NCT6775_REG_ALARM[NUM_REG_ALARM] = { 0x459, 0x45A, 0x45B }; |
| 187 | |
| 188 | /* 0..15 voltages, 16..23 fans, 24..31 temperatures */ |
| 189 | |
| 190 | static const s8 NCT6775_ALARM_BITS[] = { |
| 191 | 0, 1, 2, 3, 8, 21, 20, 16, /* in0.. in7 */ |
| 192 | 17, -1, -1, -1, -1, -1, -1, /* in8..in14 */ |
| 193 | -1, /* unused */ |
| 194 | 6, 7, 11, 10, 23, /* fan1..fan5 */ |
| 195 | -1, -1, -1, /* unused */ |
| 196 | 4, 5, 13, -1, -1, -1, /* temp1..temp6 */ |
| 197 | 12, -1 }; /* intrusion0, intrusion1 */ |
| 198 | |
Guenter Roeck | 1c65dc3 | 2012-12-04 07:56:24 -0800 | [diff] [blame^] | 199 | #define FAN_ALARM_BASE 16 |
Guenter Roeck | aa136e5 | 2012-12-04 03:26:05 -0800 | [diff] [blame] | 200 | #define TEMP_ALARM_BASE 24 |
Guenter Roeck | a6bd587 | 2012-12-04 03:13:34 -0800 | [diff] [blame] | 201 | #define INTRUSION_ALARM_BASE 30 |
| 202 | |
| 203 | static const u8 NCT6775_REG_CR_CASEOPEN_CLR[] = { 0xe6, 0xee }; |
| 204 | static const u8 NCT6775_CR_CASEOPEN_CLR_MASK[] = { 0x20, 0x01 }; |
| 205 | |
Guenter Roeck | 1c65dc3 | 2012-12-04 07:56:24 -0800 | [diff] [blame^] | 206 | static const u16 NCT6775_REG_FAN[] = { 0x630, 0x632, 0x634, 0x636, 0x638 }; |
| 207 | static const u16 NCT6775_REG_FAN_MIN[] = { 0x3b, 0x3c, 0x3d }; |
| 208 | |
Guenter Roeck | aa136e5 | 2012-12-04 03:26:05 -0800 | [diff] [blame] | 209 | static const u16 NCT6775_REG_TEMP[] = { |
| 210 | 0x27, 0x150, 0x250, 0x62b, 0x62c, 0x62d }; |
| 211 | |
| 212 | static const u16 NCT6775_REG_TEMP_CONFIG[ARRAY_SIZE(NCT6775_REG_TEMP)] = { |
| 213 | 0, 0x152, 0x252, 0x628, 0x629, 0x62A }; |
| 214 | static const u16 NCT6775_REG_TEMP_HYST[ARRAY_SIZE(NCT6775_REG_TEMP)] = { |
| 215 | 0x3a, 0x153, 0x253, 0x673, 0x678, 0x67D }; |
| 216 | static const u16 NCT6775_REG_TEMP_OVER[ARRAY_SIZE(NCT6775_REG_TEMP)] = { |
| 217 | 0x39, 0x155, 0x255, 0x672, 0x677, 0x67C }; |
| 218 | |
| 219 | static const u16 NCT6775_REG_TEMP_SOURCE[ARRAY_SIZE(NCT6775_REG_TEMP)] = { |
| 220 | 0x621, 0x622, 0x623, 0x624, 0x625, 0x626 }; |
| 221 | |
| 222 | static const u16 NCT6775_REG_TEMP_OFFSET[] = { 0x454, 0x455, 0x456 }; |
| 223 | |
| 224 | static const char *const nct6775_temp_label[] = { |
| 225 | "", |
| 226 | "SYSTIN", |
| 227 | "CPUTIN", |
| 228 | "AUXTIN", |
| 229 | "AMD SB-TSI", |
| 230 | "PECI Agent 0", |
| 231 | "PECI Agent 1", |
| 232 | "PECI Agent 2", |
| 233 | "PECI Agent 3", |
| 234 | "PECI Agent 4", |
| 235 | "PECI Agent 5", |
| 236 | "PECI Agent 6", |
| 237 | "PECI Agent 7", |
| 238 | "PCH_CHIP_CPU_MAX_TEMP", |
| 239 | "PCH_CHIP_TEMP", |
| 240 | "PCH_CPU_TEMP", |
| 241 | "PCH_MCH_TEMP", |
| 242 | "PCH_DIM0_TEMP", |
| 243 | "PCH_DIM1_TEMP", |
| 244 | "PCH_DIM2_TEMP", |
| 245 | "PCH_DIM3_TEMP" |
| 246 | }; |
| 247 | |
| 248 | static const u16 NCT6775_REG_TEMP_ALTERNATE[ARRAY_SIZE(nct6775_temp_label) - 1] |
| 249 | = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x661, 0x662, 0x664 }; |
| 250 | |
| 251 | static const u16 NCT6775_REG_TEMP_CRIT[ARRAY_SIZE(nct6775_temp_label) - 1] |
| 252 | = { 0, 0, 0, 0, 0xa00, 0xa01, 0xa02, 0xa03, 0xa04, 0xa05, 0xa06, |
| 253 | 0xa07 }; |
| 254 | |
Guenter Roeck | 9de2e2e | 2012-05-20 19:29:48 -0700 | [diff] [blame] | 255 | /* NCT6776 specific data */ |
| 256 | |
| 257 | static const s8 NCT6776_ALARM_BITS[] = { |
| 258 | 0, 1, 2, 3, 8, 21, 20, 16, /* in0.. in7 */ |
| 259 | 17, -1, -1, -1, -1, -1, -1, /* in8..in14 */ |
| 260 | -1, /* unused */ |
| 261 | 6, 7, 11, 10, 23, /* fan1..fan5 */ |
| 262 | -1, -1, -1, /* unused */ |
| 263 | 4, 5, 13, -1, -1, -1, /* temp1..temp6 */ |
| 264 | 12, 9 }; /* intrusion0, intrusion1 */ |
| 265 | |
Guenter Roeck | 1c65dc3 | 2012-12-04 07:56:24 -0800 | [diff] [blame^] | 266 | static const u16 NCT6776_REG_FAN_MIN[] = { 0x63a, 0x63c, 0x63e, 0x640, 0x642 }; |
| 267 | |
Guenter Roeck | aa136e5 | 2012-12-04 03:26:05 -0800 | [diff] [blame] | 268 | static const u16 NCT6776_REG_TEMP_CONFIG[ARRAY_SIZE(NCT6775_REG_TEMP)] = { |
| 269 | 0x18, 0x152, 0x252, 0x628, 0x629, 0x62A }; |
| 270 | |
| 271 | static const char *const nct6776_temp_label[] = { |
| 272 | "", |
| 273 | "SYSTIN", |
| 274 | "CPUTIN", |
| 275 | "AUXTIN", |
| 276 | "SMBUSMASTER 0", |
| 277 | "SMBUSMASTER 1", |
| 278 | "SMBUSMASTER 2", |
| 279 | "SMBUSMASTER 3", |
| 280 | "SMBUSMASTER 4", |
| 281 | "SMBUSMASTER 5", |
| 282 | "SMBUSMASTER 6", |
| 283 | "SMBUSMASTER 7", |
| 284 | "PECI Agent 0", |
| 285 | "PECI Agent 1", |
| 286 | "PCH_CHIP_CPU_MAX_TEMP", |
| 287 | "PCH_CHIP_TEMP", |
| 288 | "PCH_CPU_TEMP", |
| 289 | "PCH_MCH_TEMP", |
| 290 | "PCH_DIM0_TEMP", |
| 291 | "PCH_DIM1_TEMP", |
| 292 | "PCH_DIM2_TEMP", |
| 293 | "PCH_DIM3_TEMP", |
| 294 | "BYTE_TEMP" |
| 295 | }; |
| 296 | |
| 297 | static const u16 NCT6776_REG_TEMP_ALTERNATE[ARRAY_SIZE(nct6776_temp_label) - 1] |
| 298 | = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x401, 0x402, 0x404 }; |
| 299 | |
| 300 | static const u16 NCT6776_REG_TEMP_CRIT[ARRAY_SIZE(nct6776_temp_label) - 1] |
| 301 | = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x709, 0x70a }; |
| 302 | |
Guenter Roeck | 9de2e2e | 2012-05-20 19:29:48 -0700 | [diff] [blame] | 303 | /* NCT6779 specific data */ |
| 304 | |
| 305 | static const u16 NCT6779_REG_IN[] = { |
| 306 | 0x480, 0x481, 0x482, 0x483, 0x484, 0x485, 0x486, 0x487, |
| 307 | 0x488, 0x489, 0x48a, 0x48b, 0x48c, 0x48d, 0x48e }; |
| 308 | |
| 309 | static const u16 NCT6779_REG_ALARM[NUM_REG_ALARM] = { |
| 310 | 0x459, 0x45A, 0x45B, 0x568 }; |
| 311 | |
| 312 | static const s8 NCT6779_ALARM_BITS[] = { |
| 313 | 0, 1, 2, 3, 8, 21, 20, 16, /* in0.. in7 */ |
| 314 | 17, 24, 25, 26, 27, 28, 29, /* in8..in14 */ |
| 315 | -1, /* unused */ |
| 316 | 6, 7, 11, 10, 23, /* fan1..fan5 */ |
| 317 | -1, -1, -1, /* unused */ |
| 318 | 4, 5, 13, -1, -1, -1, /* temp1..temp6 */ |
| 319 | 12, 9 }; /* intrusion0, intrusion1 */ |
| 320 | |
Guenter Roeck | 1c65dc3 | 2012-12-04 07:56:24 -0800 | [diff] [blame^] | 321 | static const u16 NCT6779_REG_FAN[] = { 0x4b0, 0x4b2, 0x4b4, 0x4b6, 0x4b8 }; |
| 322 | |
Guenter Roeck | aa136e5 | 2012-12-04 03:26:05 -0800 | [diff] [blame] | 323 | static const u16 NCT6779_REG_TEMP[] = { 0x27, 0x150 }; |
| 324 | static const u16 NCT6779_REG_TEMP_CONFIG[ARRAY_SIZE(NCT6779_REG_TEMP)] = { |
| 325 | 0x18, 0x152 }; |
| 326 | static const u16 NCT6779_REG_TEMP_HYST[ARRAY_SIZE(NCT6779_REG_TEMP)] = { |
| 327 | 0x3a, 0x153 }; |
| 328 | static const u16 NCT6779_REG_TEMP_OVER[ARRAY_SIZE(NCT6779_REG_TEMP)] = { |
| 329 | 0x39, 0x155 }; |
| 330 | |
| 331 | static const u16 NCT6779_REG_TEMP_OFFSET[] = { |
| 332 | 0x454, 0x455, 0x456, 0x44a, 0x44b, 0x44c }; |
| 333 | |
| 334 | static const char *const nct6779_temp_label[] = { |
| 335 | "", |
| 336 | "SYSTIN", |
| 337 | "CPUTIN", |
| 338 | "AUXTIN0", |
| 339 | "AUXTIN1", |
| 340 | "AUXTIN2", |
| 341 | "AUXTIN3", |
| 342 | "", |
| 343 | "SMBUSMASTER 0", |
| 344 | "SMBUSMASTER 1", |
| 345 | "SMBUSMASTER 2", |
| 346 | "SMBUSMASTER 3", |
| 347 | "SMBUSMASTER 4", |
| 348 | "SMBUSMASTER 5", |
| 349 | "SMBUSMASTER 6", |
| 350 | "SMBUSMASTER 7", |
| 351 | "PECI Agent 0", |
| 352 | "PECI Agent 1", |
| 353 | "PCH_CHIP_CPU_MAX_TEMP", |
| 354 | "PCH_CHIP_TEMP", |
| 355 | "PCH_CPU_TEMP", |
| 356 | "PCH_MCH_TEMP", |
| 357 | "PCH_DIM0_TEMP", |
| 358 | "PCH_DIM1_TEMP", |
| 359 | "PCH_DIM2_TEMP", |
| 360 | "PCH_DIM3_TEMP", |
| 361 | "BYTE_TEMP" |
| 362 | }; |
| 363 | |
| 364 | static const u16 NCT6779_REG_TEMP_ALTERNATE[ARRAY_SIZE(nct6779_temp_label) - 1] |
| 365 | = { 0x490, 0x491, 0x492, 0x493, 0x494, 0x495, 0, 0, |
| 366 | 0, 0, 0, 0, 0, 0, 0, 0, |
| 367 | 0, 0x400, 0x401, 0x402, 0x404, 0x405, 0x406, 0x407, |
| 368 | 0x408, 0 }; |
| 369 | |
| 370 | static const u16 NCT6779_REG_TEMP_CRIT[ARRAY_SIZE(nct6779_temp_label) - 1] |
| 371 | = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x709, 0x70a }; |
| 372 | |
Guenter Roeck | 9de2e2e | 2012-05-20 19:29:48 -0700 | [diff] [blame] | 373 | /* |
| 374 | * Conversions |
| 375 | */ |
| 376 | |
Guenter Roeck | 1c65dc3 | 2012-12-04 07:56:24 -0800 | [diff] [blame^] | 377 | static unsigned int fan_from_reg8(u16 reg, unsigned int divreg) |
| 378 | { |
| 379 | if (reg == 0 || reg == 255) |
| 380 | return 0; |
| 381 | return 1350000U / (reg << divreg); |
| 382 | } |
| 383 | |
| 384 | static unsigned int fan_from_reg13(u16 reg, unsigned int divreg) |
| 385 | { |
| 386 | if ((reg & 0xff1f) == 0xff1f) |
| 387 | return 0; |
| 388 | |
| 389 | reg = (reg & 0x1f) | ((reg & 0xff00) >> 3); |
| 390 | |
| 391 | if (reg == 0) |
| 392 | return 0; |
| 393 | |
| 394 | return 1350000U / reg; |
| 395 | } |
| 396 | |
| 397 | static unsigned int fan_from_reg16(u16 reg, unsigned int divreg) |
| 398 | { |
| 399 | if (reg == 0 || reg == 0xffff) |
| 400 | return 0; |
| 401 | |
| 402 | /* |
| 403 | * Even though the registers are 16 bit wide, the fan divisor |
| 404 | * still applies. |
| 405 | */ |
| 406 | return 1350000U / (reg << divreg); |
| 407 | } |
| 408 | |
| 409 | static inline unsigned int |
| 410 | div_from_reg(u8 reg) |
| 411 | { |
| 412 | return 1 << reg; |
| 413 | } |
| 414 | |
Guenter Roeck | 9de2e2e | 2012-05-20 19:29:48 -0700 | [diff] [blame] | 415 | /* |
| 416 | * Some of the voltage inputs have internal scaling, the tables below |
| 417 | * contain 8 (the ADC LSB in mV) * scaling factor * 100 |
| 418 | */ |
| 419 | static const u16 scale_in[15] = { |
| 420 | 800, 800, 1600, 1600, 800, 800, 800, 1600, 1600, 800, 800, 800, 800, |
| 421 | 800, 800 |
| 422 | }; |
| 423 | |
| 424 | static inline long in_from_reg(u8 reg, u8 nr) |
| 425 | { |
| 426 | return DIV_ROUND_CLOSEST(reg * scale_in[nr], 100); |
| 427 | } |
| 428 | |
| 429 | static inline u8 in_to_reg(u32 val, u8 nr) |
| 430 | { |
| 431 | return clamp_val(DIV_ROUND_CLOSEST(val * 100, scale_in[nr]), 0, 255); |
| 432 | } |
| 433 | |
| 434 | /* |
| 435 | * Data structures and manipulation thereof |
| 436 | */ |
| 437 | |
| 438 | struct nct6775_data { |
| 439 | int addr; /* IO base of hw monitor block */ |
| 440 | enum kinds kind; |
| 441 | const char *name; |
| 442 | |
| 443 | struct device *hwmon_dev; |
| 444 | struct mutex lock; |
| 445 | |
Guenter Roeck | aa136e5 | 2012-12-04 03:26:05 -0800 | [diff] [blame] | 446 | u16 reg_temp[4][NUM_TEMP]; /* 0=temp, 1=temp_over, 2=temp_hyst, |
| 447 | * 3=temp_crit |
| 448 | */ |
| 449 | u8 temp_src[NUM_TEMP]; |
| 450 | u16 reg_temp_config[NUM_TEMP]; |
| 451 | const char * const *temp_label; |
| 452 | int temp_label_num; |
| 453 | |
Guenter Roeck | 9de2e2e | 2012-05-20 19:29:48 -0700 | [diff] [blame] | 454 | u16 REG_CONFIG; |
| 455 | u16 REG_VBAT; |
Guenter Roeck | aa136e5 | 2012-12-04 03:26:05 -0800 | [diff] [blame] | 456 | u16 REG_DIODE; |
Guenter Roeck | 9de2e2e | 2012-05-20 19:29:48 -0700 | [diff] [blame] | 457 | |
| 458 | const s8 *ALARM_BITS; |
| 459 | |
| 460 | const u16 *REG_VIN; |
| 461 | const u16 *REG_IN_MINMAX[2]; |
| 462 | |
Guenter Roeck | 1c65dc3 | 2012-12-04 07:56:24 -0800 | [diff] [blame^] | 463 | const u16 *REG_FAN; |
| 464 | const u16 *REG_FAN_MIN; |
Guenter Roeck | aa136e5 | 2012-12-04 03:26:05 -0800 | [diff] [blame] | 465 | |
Guenter Roeck | 1c65dc3 | 2012-12-04 07:56:24 -0800 | [diff] [blame^] | 466 | const u16 *REG_TEMP_SOURCE; /* temp register sources */ |
Guenter Roeck | aa136e5 | 2012-12-04 03:26:05 -0800 | [diff] [blame] | 467 | const u16 *REG_TEMP_OFFSET; |
| 468 | |
Guenter Roeck | 9de2e2e | 2012-05-20 19:29:48 -0700 | [diff] [blame] | 469 | const u16 *REG_ALARM; |
| 470 | |
Guenter Roeck | 1c65dc3 | 2012-12-04 07:56:24 -0800 | [diff] [blame^] | 471 | unsigned int (*fan_from_reg)(u16 reg, unsigned int divreg); |
| 472 | unsigned int (*fan_from_reg_min)(u16 reg, unsigned int divreg); |
| 473 | |
Guenter Roeck | 9de2e2e | 2012-05-20 19:29:48 -0700 | [diff] [blame] | 474 | struct mutex update_lock; |
| 475 | bool valid; /* true if following fields are valid */ |
| 476 | unsigned long last_updated; /* In jiffies */ |
| 477 | |
| 478 | /* Register values */ |
| 479 | u8 bank; /* current register bank */ |
| 480 | u8 in_num; /* number of in inputs we have */ |
| 481 | u8 in[15][3]; /* [0]=in, [1]=in_max, [2]=in_min */ |
Guenter Roeck | 1c65dc3 | 2012-12-04 07:56:24 -0800 | [diff] [blame^] | 482 | unsigned int rpm[5]; |
| 483 | u16 fan_min[5]; |
| 484 | u8 fan_div[5]; |
| 485 | u8 has_fan; /* some fan inputs can be disabled */ |
| 486 | u8 has_fan_min; /* some fans don't have min register */ |
| 487 | bool has_fan_div; |
Guenter Roeck | 9de2e2e | 2012-05-20 19:29:48 -0700 | [diff] [blame] | 488 | |
Guenter Roeck | aa136e5 | 2012-12-04 03:26:05 -0800 | [diff] [blame] | 489 | u8 temp_fixed_num; /* 3 or 6 */ |
| 490 | u8 temp_type[NUM_TEMP_FIXED]; |
| 491 | s8 temp_offset[NUM_TEMP_FIXED]; |
| 492 | s16 temp[4][NUM_TEMP]; /* 0=temp, 1=temp_over, 2=temp_hyst, |
| 493 | * 3=temp_crit */ |
Guenter Roeck | 9de2e2e | 2012-05-20 19:29:48 -0700 | [diff] [blame] | 494 | u64 alarms; |
| 495 | |
| 496 | u8 vid; |
| 497 | u8 vrm; |
| 498 | |
Guenter Roeck | aa136e5 | 2012-12-04 03:26:05 -0800 | [diff] [blame] | 499 | u16 have_temp; |
| 500 | u16 have_temp_fixed; |
Guenter Roeck | 9de2e2e | 2012-05-20 19:29:48 -0700 | [diff] [blame] | 501 | u16 have_in; |
| 502 | }; |
| 503 | |
| 504 | struct nct6775_sio_data { |
| 505 | int sioreg; |
| 506 | enum kinds kind; |
| 507 | }; |
| 508 | |
| 509 | static bool is_word_sized(struct nct6775_data *data, u16 reg) |
| 510 | { |
| 511 | switch (data->kind) { |
| 512 | case nct6775: |
| 513 | return (((reg & 0xff00) == 0x100 || |
| 514 | (reg & 0xff00) == 0x200) && |
| 515 | ((reg & 0x00ff) == 0x50 || |
| 516 | (reg & 0x00ff) == 0x53 || |
| 517 | (reg & 0x00ff) == 0x55)) || |
| 518 | (reg & 0xfff0) == 0x630 || |
| 519 | reg == 0x640 || reg == 0x642 || |
| 520 | reg == 0x662 || |
| 521 | ((reg & 0xfff0) == 0x650 && (reg & 0x000f) >= 0x06) || |
| 522 | reg == 0x73 || reg == 0x75 || reg == 0x77; |
| 523 | case nct6776: |
| 524 | return (((reg & 0xff00) == 0x100 || |
| 525 | (reg & 0xff00) == 0x200) && |
| 526 | ((reg & 0x00ff) == 0x50 || |
| 527 | (reg & 0x00ff) == 0x53 || |
| 528 | (reg & 0x00ff) == 0x55)) || |
| 529 | (reg & 0xfff0) == 0x630 || |
| 530 | reg == 0x402 || |
| 531 | reg == 0x640 || reg == 0x642 || |
| 532 | ((reg & 0xfff0) == 0x650 && (reg & 0x000f) >= 0x06) || |
| 533 | reg == 0x73 || reg == 0x75 || reg == 0x77; |
| 534 | case nct6779: |
| 535 | return reg == 0x150 || reg == 0x153 || reg == 0x155 || |
| 536 | ((reg & 0xfff0) == 0x4b0 && (reg & 0x000f) < 0x09) || |
| 537 | reg == 0x402 || |
| 538 | reg == 0x63a || reg == 0x63c || reg == 0x63e || |
| 539 | reg == 0x640 || reg == 0x642 || |
| 540 | reg == 0x73 || reg == 0x75 || reg == 0x77 || reg == 0x79 || |
| 541 | reg == 0x7b; |
| 542 | } |
| 543 | return false; |
| 544 | } |
| 545 | |
| 546 | /* |
| 547 | * On older chips, only registers 0x50-0x5f are banked. |
| 548 | * On more recent chips, all registers are banked. |
| 549 | * Assume that is the case and set the bank number for each access. |
| 550 | * Cache the bank number so it only needs to be set if it changes. |
| 551 | */ |
| 552 | static inline void nct6775_set_bank(struct nct6775_data *data, u16 reg) |
| 553 | { |
| 554 | u8 bank = reg >> 8; |
| 555 | if (data->bank != bank) { |
| 556 | outb_p(NCT6775_REG_BANK, data->addr + ADDR_REG_OFFSET); |
| 557 | outb_p(bank, data->addr + DATA_REG_OFFSET); |
| 558 | data->bank = bank; |
| 559 | } |
| 560 | } |
| 561 | |
| 562 | static u16 nct6775_read_value(struct nct6775_data *data, u16 reg) |
| 563 | { |
| 564 | int res, word_sized = is_word_sized(data, reg); |
| 565 | |
| 566 | mutex_lock(&data->lock); |
| 567 | |
| 568 | nct6775_set_bank(data, reg); |
| 569 | outb_p(reg & 0xff, data->addr + ADDR_REG_OFFSET); |
| 570 | res = inb_p(data->addr + DATA_REG_OFFSET); |
| 571 | if (word_sized) { |
| 572 | outb_p((reg & 0xff) + 1, |
| 573 | data->addr + ADDR_REG_OFFSET); |
| 574 | res = (res << 8) + inb_p(data->addr + DATA_REG_OFFSET); |
| 575 | } |
| 576 | |
| 577 | mutex_unlock(&data->lock); |
| 578 | return res; |
| 579 | } |
| 580 | |
| 581 | static int nct6775_write_value(struct nct6775_data *data, u16 reg, u16 value) |
| 582 | { |
| 583 | int word_sized = is_word_sized(data, reg); |
| 584 | |
| 585 | mutex_lock(&data->lock); |
| 586 | |
| 587 | nct6775_set_bank(data, reg); |
| 588 | outb_p(reg & 0xff, data->addr + ADDR_REG_OFFSET); |
| 589 | if (word_sized) { |
| 590 | outb_p(value >> 8, data->addr + DATA_REG_OFFSET); |
| 591 | outb_p((reg & 0xff) + 1, |
| 592 | data->addr + ADDR_REG_OFFSET); |
| 593 | } |
| 594 | outb_p(value & 0xff, data->addr + DATA_REG_OFFSET); |
| 595 | |
| 596 | mutex_unlock(&data->lock); |
| 597 | return 0; |
| 598 | } |
| 599 | |
Guenter Roeck | aa136e5 | 2012-12-04 03:26:05 -0800 | [diff] [blame] | 600 | /* We left-align 8-bit temperature values to make the code simpler */ |
| 601 | static u16 nct6775_read_temp(struct nct6775_data *data, u16 reg) |
| 602 | { |
| 603 | u16 res; |
| 604 | |
| 605 | res = nct6775_read_value(data, reg); |
| 606 | if (!is_word_sized(data, reg)) |
| 607 | res <<= 8; |
| 608 | |
| 609 | return res; |
| 610 | } |
| 611 | |
| 612 | static int nct6775_write_temp(struct nct6775_data *data, u16 reg, u16 value) |
| 613 | { |
| 614 | if (!is_word_sized(data, reg)) |
| 615 | value >>= 8; |
| 616 | return nct6775_write_value(data, reg, value); |
| 617 | } |
| 618 | |
Guenter Roeck | 1c65dc3 | 2012-12-04 07:56:24 -0800 | [diff] [blame^] | 619 | /* This function assumes that the caller holds data->update_lock */ |
| 620 | static void nct6775_write_fan_div(struct nct6775_data *data, int nr) |
| 621 | { |
| 622 | u8 reg; |
| 623 | |
| 624 | switch (nr) { |
| 625 | case 0: |
| 626 | reg = (nct6775_read_value(data, NCT6775_REG_FANDIV1) & 0x70) |
| 627 | | (data->fan_div[0] & 0x7); |
| 628 | nct6775_write_value(data, NCT6775_REG_FANDIV1, reg); |
| 629 | break; |
| 630 | case 1: |
| 631 | reg = (nct6775_read_value(data, NCT6775_REG_FANDIV1) & 0x7) |
| 632 | | ((data->fan_div[1] << 4) & 0x70); |
| 633 | nct6775_write_value(data, NCT6775_REG_FANDIV1, reg); |
| 634 | break; |
| 635 | case 2: |
| 636 | reg = (nct6775_read_value(data, NCT6775_REG_FANDIV2) & 0x70) |
| 637 | | (data->fan_div[2] & 0x7); |
| 638 | nct6775_write_value(data, NCT6775_REG_FANDIV2, reg); |
| 639 | break; |
| 640 | case 3: |
| 641 | reg = (nct6775_read_value(data, NCT6775_REG_FANDIV2) & 0x7) |
| 642 | | ((data->fan_div[3] << 4) & 0x70); |
| 643 | nct6775_write_value(data, NCT6775_REG_FANDIV2, reg); |
| 644 | break; |
| 645 | } |
| 646 | } |
| 647 | |
| 648 | static void nct6775_write_fan_div_common(struct nct6775_data *data, int nr) |
| 649 | { |
| 650 | if (data->kind == nct6775) |
| 651 | nct6775_write_fan_div(data, nr); |
| 652 | } |
| 653 | |
| 654 | static void nct6775_update_fan_div(struct nct6775_data *data) |
| 655 | { |
| 656 | u8 i; |
| 657 | |
| 658 | i = nct6775_read_value(data, NCT6775_REG_FANDIV1); |
| 659 | data->fan_div[0] = i & 0x7; |
| 660 | data->fan_div[1] = (i & 0x70) >> 4; |
| 661 | i = nct6775_read_value(data, NCT6775_REG_FANDIV2); |
| 662 | data->fan_div[2] = i & 0x7; |
| 663 | if (data->has_fan & (1<<3)) |
| 664 | data->fan_div[3] = (i & 0x70) >> 4; |
| 665 | } |
| 666 | |
| 667 | static void nct6775_update_fan_div_common(struct nct6775_data *data) |
| 668 | { |
| 669 | if (data->kind == nct6775) |
| 670 | nct6775_update_fan_div(data); |
| 671 | } |
| 672 | |
| 673 | static void nct6775_init_fan_div(struct nct6775_data *data) |
| 674 | { |
| 675 | int i; |
| 676 | |
| 677 | nct6775_update_fan_div_common(data); |
| 678 | /* |
| 679 | * For all fans, start with highest divider value if the divider |
| 680 | * register is not initialized. This ensures that we get a |
| 681 | * reading from the fan count register, even if it is not optimal. |
| 682 | * We'll compute a better divider later on. |
| 683 | */ |
| 684 | for (i = 0; i < 3; i++) { |
| 685 | if (!(data->has_fan & (1 << i))) |
| 686 | continue; |
| 687 | if (data->fan_div[i] == 0) { |
| 688 | data->fan_div[i] = 7; |
| 689 | nct6775_write_fan_div_common(data, i); |
| 690 | } |
| 691 | } |
| 692 | } |
| 693 | |
| 694 | static void nct6775_init_fan_common(struct device *dev, |
| 695 | struct nct6775_data *data) |
| 696 | { |
| 697 | int i; |
| 698 | u8 reg; |
| 699 | |
| 700 | if (data->has_fan_div) |
| 701 | nct6775_init_fan_div(data); |
| 702 | |
| 703 | /* |
| 704 | * If fan_min is not set (0), set it to 0xff to disable it. This |
| 705 | * prevents the unnecessary warning when fanX_min is reported as 0. |
| 706 | */ |
| 707 | for (i = 0; i < 5; i++) { |
| 708 | if (data->has_fan_min & (1 << i)) { |
| 709 | reg = nct6775_read_value(data, data->REG_FAN_MIN[i]); |
| 710 | if (!reg) |
| 711 | nct6775_write_value(data, data->REG_FAN_MIN[i], |
| 712 | data->has_fan_div ? 0xff |
| 713 | : 0xff1f); |
| 714 | } |
| 715 | } |
| 716 | } |
| 717 | |
| 718 | static void nct6775_select_fan_div(struct device *dev, |
| 719 | struct nct6775_data *data, int nr, u16 reg) |
| 720 | { |
| 721 | u8 fan_div = data->fan_div[nr]; |
| 722 | u16 fan_min; |
| 723 | |
| 724 | if (!data->has_fan_div) |
| 725 | return; |
| 726 | |
| 727 | /* |
| 728 | * If we failed to measure the fan speed, or the reported value is not |
| 729 | * in the optimal range, and the clock divider can be modified, |
| 730 | * let's try that for next time. |
| 731 | */ |
| 732 | if (reg == 0x00 && fan_div < 0x07) |
| 733 | fan_div++; |
| 734 | else if (reg != 0x00 && reg < 0x30 && fan_div > 0) |
| 735 | fan_div--; |
| 736 | |
| 737 | if (fan_div != data->fan_div[nr]) { |
| 738 | dev_dbg(dev, "Modifying fan%d clock divider from %u to %u\n", |
| 739 | nr + 1, div_from_reg(data->fan_div[nr]), |
| 740 | div_from_reg(fan_div)); |
| 741 | |
| 742 | /* Preserve min limit if possible */ |
| 743 | if (data->has_fan_min & (1 << nr)) { |
| 744 | fan_min = data->fan_min[nr]; |
| 745 | if (fan_div > data->fan_div[nr]) { |
| 746 | if (fan_min != 255 && fan_min > 1) |
| 747 | fan_min >>= 1; |
| 748 | } else { |
| 749 | if (fan_min != 255) { |
| 750 | fan_min <<= 1; |
| 751 | if (fan_min > 254) |
| 752 | fan_min = 254; |
| 753 | } |
| 754 | } |
| 755 | if (fan_min != data->fan_min[nr]) { |
| 756 | data->fan_min[nr] = fan_min; |
| 757 | nct6775_write_value(data, data->REG_FAN_MIN[nr], |
| 758 | fan_min); |
| 759 | } |
| 760 | } |
| 761 | data->fan_div[nr] = fan_div; |
| 762 | nct6775_write_fan_div_common(data, nr); |
| 763 | } |
| 764 | } |
| 765 | |
Guenter Roeck | 9de2e2e | 2012-05-20 19:29:48 -0700 | [diff] [blame] | 766 | static struct nct6775_data *nct6775_update_device(struct device *dev) |
| 767 | { |
| 768 | struct nct6775_data *data = dev_get_drvdata(dev); |
Guenter Roeck | aa136e5 | 2012-12-04 03:26:05 -0800 | [diff] [blame] | 769 | int i, j; |
Guenter Roeck | 9de2e2e | 2012-05-20 19:29:48 -0700 | [diff] [blame] | 770 | |
| 771 | mutex_lock(&data->update_lock); |
| 772 | |
| 773 | if (time_after(jiffies, data->last_updated + HZ + HZ/2) |
| 774 | || !data->valid) { |
Guenter Roeck | 1c65dc3 | 2012-12-04 07:56:24 -0800 | [diff] [blame^] | 775 | /* Fan clock dividers */ |
| 776 | nct6775_update_fan_div_common(data); |
| 777 | |
Guenter Roeck | 9de2e2e | 2012-05-20 19:29:48 -0700 | [diff] [blame] | 778 | /* Measured voltages and limits */ |
| 779 | for (i = 0; i < data->in_num; i++) { |
| 780 | if (!(data->have_in & (1 << i))) |
| 781 | continue; |
| 782 | |
| 783 | data->in[i][0] = nct6775_read_value(data, |
| 784 | data->REG_VIN[i]); |
| 785 | data->in[i][1] = nct6775_read_value(data, |
| 786 | data->REG_IN_MINMAX[0][i]); |
| 787 | data->in[i][2] = nct6775_read_value(data, |
| 788 | data->REG_IN_MINMAX[1][i]); |
| 789 | } |
| 790 | |
Guenter Roeck | 1c65dc3 | 2012-12-04 07:56:24 -0800 | [diff] [blame^] | 791 | /* Measured fan speeds and limits */ |
| 792 | for (i = 0; i < 5; i++) { |
| 793 | u16 reg; |
| 794 | |
| 795 | if (!(data->has_fan & (1 << i))) |
| 796 | continue; |
| 797 | |
| 798 | reg = nct6775_read_value(data, data->REG_FAN[i]); |
| 799 | data->rpm[i] = data->fan_from_reg(reg, |
| 800 | data->fan_div[i]); |
| 801 | |
| 802 | if (data->has_fan_min & (1 << i)) |
| 803 | data->fan_min[i] = nct6775_read_value(data, |
| 804 | data->REG_FAN_MIN[i]); |
| 805 | |
| 806 | nct6775_select_fan_div(dev, data, i, reg); |
| 807 | } |
| 808 | |
Guenter Roeck | aa136e5 | 2012-12-04 03:26:05 -0800 | [diff] [blame] | 809 | /* Measured temperatures and limits */ |
| 810 | for (i = 0; i < NUM_TEMP; i++) { |
| 811 | if (!(data->have_temp & (1 << i))) |
| 812 | continue; |
| 813 | for (j = 0; j < 4; j++) { |
| 814 | if (data->reg_temp[j][i]) |
| 815 | data->temp[j][i] |
| 816 | = nct6775_read_temp(data, |
| 817 | data->reg_temp[j][i]); |
| 818 | } |
| 819 | if (!(data->have_temp_fixed & (1 << i))) |
| 820 | continue; |
| 821 | data->temp_offset[i] |
| 822 | = nct6775_read_value(data, data->REG_TEMP_OFFSET[i]); |
| 823 | } |
| 824 | |
Guenter Roeck | 9de2e2e | 2012-05-20 19:29:48 -0700 | [diff] [blame] | 825 | data->alarms = 0; |
| 826 | for (i = 0; i < NUM_REG_ALARM; i++) { |
| 827 | u8 alarm; |
| 828 | if (!data->REG_ALARM[i]) |
| 829 | continue; |
| 830 | alarm = nct6775_read_value(data, data->REG_ALARM[i]); |
| 831 | data->alarms |= ((u64)alarm) << (i << 3); |
| 832 | } |
| 833 | |
| 834 | data->last_updated = jiffies; |
| 835 | data->valid = true; |
| 836 | } |
| 837 | |
| 838 | mutex_unlock(&data->update_lock); |
| 839 | return data; |
| 840 | } |
| 841 | |
| 842 | /* |
| 843 | * Sysfs callback functions |
| 844 | */ |
| 845 | static ssize_t |
| 846 | show_in_reg(struct device *dev, struct device_attribute *attr, char *buf) |
| 847 | { |
| 848 | struct nct6775_data *data = nct6775_update_device(dev); |
| 849 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
| 850 | int nr = sattr->nr; |
| 851 | int index = sattr->index; |
| 852 | return sprintf(buf, "%ld\n", in_from_reg(data->in[nr][index], nr)); |
| 853 | } |
| 854 | |
| 855 | static ssize_t |
| 856 | store_in_reg(struct device *dev, struct device_attribute *attr, const char *buf, |
| 857 | size_t count) |
| 858 | { |
| 859 | struct nct6775_data *data = dev_get_drvdata(dev); |
| 860 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
| 861 | int nr = sattr->nr; |
| 862 | int index = sattr->index; |
| 863 | unsigned long val; |
| 864 | int err = kstrtoul(buf, 10, &val); |
| 865 | if (err < 0) |
| 866 | return err; |
| 867 | mutex_lock(&data->update_lock); |
| 868 | data->in[nr][index] = in_to_reg(val, nr); |
| 869 | nct6775_write_value(data, data->REG_IN_MINMAX[index-1][nr], |
| 870 | data->in[nr][index]); |
| 871 | mutex_unlock(&data->update_lock); |
| 872 | return count; |
| 873 | } |
| 874 | |
| 875 | static ssize_t |
| 876 | show_alarm(struct device *dev, struct device_attribute *attr, char *buf) |
| 877 | { |
| 878 | struct nct6775_data *data = nct6775_update_device(dev); |
| 879 | struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr); |
| 880 | int nr = data->ALARM_BITS[sattr->index]; |
| 881 | return sprintf(buf, "%u\n", |
| 882 | (unsigned int)((data->alarms >> nr) & 0x01)); |
| 883 | } |
| 884 | |
| 885 | static SENSOR_DEVICE_ATTR_2(in0_input, S_IRUGO, show_in_reg, NULL, 0, 0); |
| 886 | static SENSOR_DEVICE_ATTR_2(in1_input, S_IRUGO, show_in_reg, NULL, 1, 0); |
| 887 | static SENSOR_DEVICE_ATTR_2(in2_input, S_IRUGO, show_in_reg, NULL, 2, 0); |
| 888 | static SENSOR_DEVICE_ATTR_2(in3_input, S_IRUGO, show_in_reg, NULL, 3, 0); |
| 889 | static SENSOR_DEVICE_ATTR_2(in4_input, S_IRUGO, show_in_reg, NULL, 4, 0); |
| 890 | static SENSOR_DEVICE_ATTR_2(in5_input, S_IRUGO, show_in_reg, NULL, 5, 0); |
| 891 | static SENSOR_DEVICE_ATTR_2(in6_input, S_IRUGO, show_in_reg, NULL, 6, 0); |
| 892 | static SENSOR_DEVICE_ATTR_2(in7_input, S_IRUGO, show_in_reg, NULL, 7, 0); |
| 893 | static SENSOR_DEVICE_ATTR_2(in8_input, S_IRUGO, show_in_reg, NULL, 8, 0); |
| 894 | static SENSOR_DEVICE_ATTR_2(in9_input, S_IRUGO, show_in_reg, NULL, 9, 0); |
| 895 | static SENSOR_DEVICE_ATTR_2(in10_input, S_IRUGO, show_in_reg, NULL, 10, 0); |
| 896 | static SENSOR_DEVICE_ATTR_2(in11_input, S_IRUGO, show_in_reg, NULL, 11, 0); |
| 897 | static SENSOR_DEVICE_ATTR_2(in12_input, S_IRUGO, show_in_reg, NULL, 12, 0); |
| 898 | static SENSOR_DEVICE_ATTR_2(in13_input, S_IRUGO, show_in_reg, NULL, 13, 0); |
| 899 | static SENSOR_DEVICE_ATTR_2(in14_input, S_IRUGO, show_in_reg, NULL, 14, 0); |
| 900 | |
| 901 | static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0); |
| 902 | static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1); |
| 903 | static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2); |
| 904 | static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3); |
| 905 | static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 4); |
| 906 | static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 5); |
| 907 | static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 6); |
| 908 | static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 7); |
| 909 | static SENSOR_DEVICE_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 8); |
| 910 | static SENSOR_DEVICE_ATTR(in9_alarm, S_IRUGO, show_alarm, NULL, 9); |
| 911 | static SENSOR_DEVICE_ATTR(in10_alarm, S_IRUGO, show_alarm, NULL, 10); |
| 912 | static SENSOR_DEVICE_ATTR(in11_alarm, S_IRUGO, show_alarm, NULL, 11); |
| 913 | static SENSOR_DEVICE_ATTR(in12_alarm, S_IRUGO, show_alarm, NULL, 12); |
| 914 | static SENSOR_DEVICE_ATTR(in13_alarm, S_IRUGO, show_alarm, NULL, 13); |
| 915 | static SENSOR_DEVICE_ATTR(in14_alarm, S_IRUGO, show_alarm, NULL, 14); |
| 916 | |
| 917 | static SENSOR_DEVICE_ATTR_2(in0_min, S_IWUSR | S_IRUGO, show_in_reg, |
| 918 | store_in_reg, 0, 1); |
| 919 | static SENSOR_DEVICE_ATTR_2(in1_min, S_IWUSR | S_IRUGO, show_in_reg, |
| 920 | store_in_reg, 1, 1); |
| 921 | static SENSOR_DEVICE_ATTR_2(in2_min, S_IWUSR | S_IRUGO, show_in_reg, |
| 922 | store_in_reg, 2, 1); |
| 923 | static SENSOR_DEVICE_ATTR_2(in3_min, S_IWUSR | S_IRUGO, show_in_reg, |
| 924 | store_in_reg, 3, 1); |
| 925 | static SENSOR_DEVICE_ATTR_2(in4_min, S_IWUSR | S_IRUGO, show_in_reg, |
| 926 | store_in_reg, 4, 1); |
| 927 | static SENSOR_DEVICE_ATTR_2(in5_min, S_IWUSR | S_IRUGO, show_in_reg, |
| 928 | store_in_reg, 5, 1); |
| 929 | static SENSOR_DEVICE_ATTR_2(in6_min, S_IWUSR | S_IRUGO, show_in_reg, |
| 930 | store_in_reg, 6, 1); |
| 931 | static SENSOR_DEVICE_ATTR_2(in7_min, S_IWUSR | S_IRUGO, show_in_reg, |
| 932 | store_in_reg, 7, 1); |
| 933 | static SENSOR_DEVICE_ATTR_2(in8_min, S_IWUSR | S_IRUGO, show_in_reg, |
| 934 | store_in_reg, 8, 1); |
| 935 | static SENSOR_DEVICE_ATTR_2(in9_min, S_IWUSR | S_IRUGO, show_in_reg, |
| 936 | store_in_reg, 9, 1); |
| 937 | static SENSOR_DEVICE_ATTR_2(in10_min, S_IWUSR | S_IRUGO, show_in_reg, |
| 938 | store_in_reg, 10, 1); |
| 939 | static SENSOR_DEVICE_ATTR_2(in11_min, S_IWUSR | S_IRUGO, show_in_reg, |
| 940 | store_in_reg, 11, 1); |
| 941 | static SENSOR_DEVICE_ATTR_2(in12_min, S_IWUSR | S_IRUGO, show_in_reg, |
| 942 | store_in_reg, 12, 1); |
| 943 | static SENSOR_DEVICE_ATTR_2(in13_min, S_IWUSR | S_IRUGO, show_in_reg, |
| 944 | store_in_reg, 13, 1); |
| 945 | static SENSOR_DEVICE_ATTR_2(in14_min, S_IWUSR | S_IRUGO, show_in_reg, |
| 946 | store_in_reg, 14, 1); |
| 947 | |
| 948 | static SENSOR_DEVICE_ATTR_2(in0_max, S_IWUSR | S_IRUGO, show_in_reg, |
| 949 | store_in_reg, 0, 2); |
| 950 | static SENSOR_DEVICE_ATTR_2(in1_max, S_IWUSR | S_IRUGO, show_in_reg, |
| 951 | store_in_reg, 1, 2); |
| 952 | static SENSOR_DEVICE_ATTR_2(in2_max, S_IWUSR | S_IRUGO, show_in_reg, |
| 953 | store_in_reg, 2, 2); |
| 954 | static SENSOR_DEVICE_ATTR_2(in3_max, S_IWUSR | S_IRUGO, show_in_reg, |
| 955 | store_in_reg, 3, 2); |
| 956 | static SENSOR_DEVICE_ATTR_2(in4_max, S_IWUSR | S_IRUGO, show_in_reg, |
| 957 | store_in_reg, 4, 2); |
| 958 | static SENSOR_DEVICE_ATTR_2(in5_max, S_IWUSR | S_IRUGO, show_in_reg, |
| 959 | store_in_reg, 5, 2); |
| 960 | static SENSOR_DEVICE_ATTR_2(in6_max, S_IWUSR | S_IRUGO, show_in_reg, |
| 961 | store_in_reg, 6, 2); |
| 962 | static SENSOR_DEVICE_ATTR_2(in7_max, S_IWUSR | S_IRUGO, show_in_reg, |
| 963 | store_in_reg, 7, 2); |
| 964 | static SENSOR_DEVICE_ATTR_2(in8_max, S_IWUSR | S_IRUGO, show_in_reg, |
| 965 | store_in_reg, 8, 2); |
| 966 | static SENSOR_DEVICE_ATTR_2(in9_max, S_IWUSR | S_IRUGO, show_in_reg, |
| 967 | store_in_reg, 9, 2); |
| 968 | static SENSOR_DEVICE_ATTR_2(in10_max, S_IWUSR | S_IRUGO, show_in_reg, |
| 969 | store_in_reg, 10, 2); |
| 970 | static SENSOR_DEVICE_ATTR_2(in11_max, S_IWUSR | S_IRUGO, show_in_reg, |
| 971 | store_in_reg, 11, 2); |
| 972 | static SENSOR_DEVICE_ATTR_2(in12_max, S_IWUSR | S_IRUGO, show_in_reg, |
| 973 | store_in_reg, 12, 2); |
| 974 | static SENSOR_DEVICE_ATTR_2(in13_max, S_IWUSR | S_IRUGO, show_in_reg, |
| 975 | store_in_reg, 13, 2); |
| 976 | static SENSOR_DEVICE_ATTR_2(in14_max, S_IWUSR | S_IRUGO, show_in_reg, |
| 977 | store_in_reg, 14, 2); |
| 978 | |
| 979 | static struct attribute *nct6775_attributes_in[15][5] = { |
| 980 | { |
| 981 | &sensor_dev_attr_in0_input.dev_attr.attr, |
| 982 | &sensor_dev_attr_in0_min.dev_attr.attr, |
| 983 | &sensor_dev_attr_in0_max.dev_attr.attr, |
| 984 | &sensor_dev_attr_in0_alarm.dev_attr.attr, |
| 985 | NULL |
| 986 | }, |
| 987 | { |
| 988 | &sensor_dev_attr_in1_input.dev_attr.attr, |
| 989 | &sensor_dev_attr_in1_min.dev_attr.attr, |
| 990 | &sensor_dev_attr_in1_max.dev_attr.attr, |
| 991 | &sensor_dev_attr_in1_alarm.dev_attr.attr, |
| 992 | NULL |
| 993 | }, |
| 994 | { |
| 995 | &sensor_dev_attr_in2_input.dev_attr.attr, |
| 996 | &sensor_dev_attr_in2_min.dev_attr.attr, |
| 997 | &sensor_dev_attr_in2_max.dev_attr.attr, |
| 998 | &sensor_dev_attr_in2_alarm.dev_attr.attr, |
| 999 | NULL |
| 1000 | }, |
| 1001 | { |
| 1002 | &sensor_dev_attr_in3_input.dev_attr.attr, |
| 1003 | &sensor_dev_attr_in3_min.dev_attr.attr, |
| 1004 | &sensor_dev_attr_in3_max.dev_attr.attr, |
| 1005 | &sensor_dev_attr_in3_alarm.dev_attr.attr, |
| 1006 | NULL |
| 1007 | }, |
| 1008 | { |
| 1009 | &sensor_dev_attr_in4_input.dev_attr.attr, |
| 1010 | &sensor_dev_attr_in4_min.dev_attr.attr, |
| 1011 | &sensor_dev_attr_in4_max.dev_attr.attr, |
| 1012 | &sensor_dev_attr_in4_alarm.dev_attr.attr, |
| 1013 | NULL |
| 1014 | }, |
| 1015 | { |
| 1016 | &sensor_dev_attr_in5_input.dev_attr.attr, |
| 1017 | &sensor_dev_attr_in5_min.dev_attr.attr, |
| 1018 | &sensor_dev_attr_in5_max.dev_attr.attr, |
| 1019 | &sensor_dev_attr_in5_alarm.dev_attr.attr, |
| 1020 | NULL |
| 1021 | }, |
| 1022 | { |
| 1023 | &sensor_dev_attr_in6_input.dev_attr.attr, |
| 1024 | &sensor_dev_attr_in6_min.dev_attr.attr, |
| 1025 | &sensor_dev_attr_in6_max.dev_attr.attr, |
| 1026 | &sensor_dev_attr_in6_alarm.dev_attr.attr, |
| 1027 | NULL |
| 1028 | }, |
| 1029 | { |
| 1030 | &sensor_dev_attr_in7_input.dev_attr.attr, |
| 1031 | &sensor_dev_attr_in7_min.dev_attr.attr, |
| 1032 | &sensor_dev_attr_in7_max.dev_attr.attr, |
| 1033 | &sensor_dev_attr_in7_alarm.dev_attr.attr, |
| 1034 | NULL |
| 1035 | }, |
| 1036 | { |
| 1037 | &sensor_dev_attr_in8_input.dev_attr.attr, |
| 1038 | &sensor_dev_attr_in8_min.dev_attr.attr, |
| 1039 | &sensor_dev_attr_in8_max.dev_attr.attr, |
| 1040 | &sensor_dev_attr_in8_alarm.dev_attr.attr, |
| 1041 | NULL |
| 1042 | }, |
| 1043 | { |
| 1044 | &sensor_dev_attr_in9_input.dev_attr.attr, |
| 1045 | &sensor_dev_attr_in9_min.dev_attr.attr, |
| 1046 | &sensor_dev_attr_in9_max.dev_attr.attr, |
| 1047 | &sensor_dev_attr_in9_alarm.dev_attr.attr, |
| 1048 | NULL |
| 1049 | }, |
| 1050 | { |
| 1051 | &sensor_dev_attr_in10_input.dev_attr.attr, |
| 1052 | &sensor_dev_attr_in10_min.dev_attr.attr, |
| 1053 | &sensor_dev_attr_in10_max.dev_attr.attr, |
| 1054 | &sensor_dev_attr_in10_alarm.dev_attr.attr, |
| 1055 | NULL |
| 1056 | }, |
| 1057 | { |
| 1058 | &sensor_dev_attr_in11_input.dev_attr.attr, |
| 1059 | &sensor_dev_attr_in11_min.dev_attr.attr, |
| 1060 | &sensor_dev_attr_in11_max.dev_attr.attr, |
| 1061 | &sensor_dev_attr_in11_alarm.dev_attr.attr, |
| 1062 | NULL |
| 1063 | }, |
| 1064 | { |
| 1065 | &sensor_dev_attr_in12_input.dev_attr.attr, |
| 1066 | &sensor_dev_attr_in12_min.dev_attr.attr, |
| 1067 | &sensor_dev_attr_in12_max.dev_attr.attr, |
| 1068 | &sensor_dev_attr_in12_alarm.dev_attr.attr, |
| 1069 | NULL |
| 1070 | }, |
| 1071 | { |
| 1072 | &sensor_dev_attr_in13_input.dev_attr.attr, |
| 1073 | &sensor_dev_attr_in13_min.dev_attr.attr, |
| 1074 | &sensor_dev_attr_in13_max.dev_attr.attr, |
| 1075 | &sensor_dev_attr_in13_alarm.dev_attr.attr, |
| 1076 | NULL |
| 1077 | }, |
| 1078 | { |
| 1079 | &sensor_dev_attr_in14_input.dev_attr.attr, |
| 1080 | &sensor_dev_attr_in14_min.dev_attr.attr, |
| 1081 | &sensor_dev_attr_in14_max.dev_attr.attr, |
| 1082 | &sensor_dev_attr_in14_alarm.dev_attr.attr, |
| 1083 | NULL |
| 1084 | }, |
| 1085 | }; |
| 1086 | |
| 1087 | static const struct attribute_group nct6775_group_in[15] = { |
| 1088 | { .attrs = nct6775_attributes_in[0] }, |
| 1089 | { .attrs = nct6775_attributes_in[1] }, |
| 1090 | { .attrs = nct6775_attributes_in[2] }, |
| 1091 | { .attrs = nct6775_attributes_in[3] }, |
| 1092 | { .attrs = nct6775_attributes_in[4] }, |
| 1093 | { .attrs = nct6775_attributes_in[5] }, |
| 1094 | { .attrs = nct6775_attributes_in[6] }, |
| 1095 | { .attrs = nct6775_attributes_in[7] }, |
| 1096 | { .attrs = nct6775_attributes_in[8] }, |
| 1097 | { .attrs = nct6775_attributes_in[9] }, |
| 1098 | { .attrs = nct6775_attributes_in[10] }, |
| 1099 | { .attrs = nct6775_attributes_in[11] }, |
| 1100 | { .attrs = nct6775_attributes_in[12] }, |
| 1101 | { .attrs = nct6775_attributes_in[13] }, |
| 1102 | { .attrs = nct6775_attributes_in[14] }, |
| 1103 | }; |
| 1104 | |
| 1105 | static ssize_t |
Guenter Roeck | 1c65dc3 | 2012-12-04 07:56:24 -0800 | [diff] [blame^] | 1106 | show_fan(struct device *dev, struct device_attribute *attr, char *buf) |
| 1107 | { |
| 1108 | struct nct6775_data *data = nct6775_update_device(dev); |
| 1109 | struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr); |
| 1110 | int nr = sattr->index; |
| 1111 | return sprintf(buf, "%d\n", data->rpm[nr]); |
| 1112 | } |
| 1113 | |
| 1114 | static ssize_t |
| 1115 | show_fan_min(struct device *dev, struct device_attribute *attr, char *buf) |
| 1116 | { |
| 1117 | struct nct6775_data *data = nct6775_update_device(dev); |
| 1118 | struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr); |
| 1119 | int nr = sattr->index; |
| 1120 | return sprintf(buf, "%d\n", |
| 1121 | data->fan_from_reg_min(data->fan_min[nr], |
| 1122 | data->fan_div[nr])); |
| 1123 | } |
| 1124 | |
| 1125 | static ssize_t |
| 1126 | show_fan_div(struct device *dev, struct device_attribute *attr, char *buf) |
| 1127 | { |
| 1128 | struct nct6775_data *data = nct6775_update_device(dev); |
| 1129 | struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr); |
| 1130 | int nr = sattr->index; |
| 1131 | return sprintf(buf, "%u\n", div_from_reg(data->fan_div[nr])); |
| 1132 | } |
| 1133 | |
| 1134 | static ssize_t |
| 1135 | store_fan_min(struct device *dev, struct device_attribute *attr, |
| 1136 | const char *buf, size_t count) |
| 1137 | { |
| 1138 | struct nct6775_data *data = dev_get_drvdata(dev); |
| 1139 | struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr); |
| 1140 | int nr = sattr->index; |
| 1141 | unsigned long val; |
| 1142 | int err; |
| 1143 | unsigned int reg; |
| 1144 | u8 new_div; |
| 1145 | |
| 1146 | err = kstrtoul(buf, 10, &val); |
| 1147 | if (err < 0) |
| 1148 | return err; |
| 1149 | |
| 1150 | mutex_lock(&data->update_lock); |
| 1151 | if (!data->has_fan_div) { |
| 1152 | /* NCT6776F or NCT6779D; we know this is a 13 bit register */ |
| 1153 | if (!val) { |
| 1154 | val = 0xff1f; |
| 1155 | } else { |
| 1156 | if (val > 1350000U) |
| 1157 | val = 135000U; |
| 1158 | val = 1350000U / val; |
| 1159 | val = (val & 0x1f) | ((val << 3) & 0xff00); |
| 1160 | } |
| 1161 | data->fan_min[nr] = val; |
| 1162 | goto write_min; /* Leave fan divider alone */ |
| 1163 | } |
| 1164 | if (!val) { |
| 1165 | /* No min limit, alarm disabled */ |
| 1166 | data->fan_min[nr] = 255; |
| 1167 | new_div = data->fan_div[nr]; /* No change */ |
| 1168 | dev_info(dev, "fan%u low limit and alarm disabled\n", nr + 1); |
| 1169 | goto write_div; |
| 1170 | } |
| 1171 | reg = 1350000U / val; |
| 1172 | if (reg >= 128 * 255) { |
| 1173 | /* |
| 1174 | * Speed below this value cannot possibly be represented, |
| 1175 | * even with the highest divider (128) |
| 1176 | */ |
| 1177 | data->fan_min[nr] = 254; |
| 1178 | new_div = 7; /* 128 == (1 << 7) */ |
| 1179 | dev_warn(dev, |
| 1180 | "fan%u low limit %lu below minimum %u, set to minimum\n", |
| 1181 | nr + 1, val, data->fan_from_reg_min(254, 7)); |
| 1182 | } else if (!reg) { |
| 1183 | /* |
| 1184 | * Speed above this value cannot possibly be represented, |
| 1185 | * even with the lowest divider (1) |
| 1186 | */ |
| 1187 | data->fan_min[nr] = 1; |
| 1188 | new_div = 0; /* 1 == (1 << 0) */ |
| 1189 | dev_warn(dev, |
| 1190 | "fan%u low limit %lu above maximum %u, set to maximum\n", |
| 1191 | nr + 1, val, data->fan_from_reg_min(1, 0)); |
| 1192 | } else { |
| 1193 | /* |
| 1194 | * Automatically pick the best divider, i.e. the one such |
| 1195 | * that the min limit will correspond to a register value |
| 1196 | * in the 96..192 range |
| 1197 | */ |
| 1198 | new_div = 0; |
| 1199 | while (reg > 192 && new_div < 7) { |
| 1200 | reg >>= 1; |
| 1201 | new_div++; |
| 1202 | } |
| 1203 | data->fan_min[nr] = reg; |
| 1204 | } |
| 1205 | |
| 1206 | write_div: |
| 1207 | /* |
| 1208 | * Write both the fan clock divider (if it changed) and the new |
| 1209 | * fan min (unconditionally) |
| 1210 | */ |
| 1211 | if (new_div != data->fan_div[nr]) { |
| 1212 | dev_dbg(dev, "fan%u clock divider changed from %u to %u\n", |
| 1213 | nr + 1, div_from_reg(data->fan_div[nr]), |
| 1214 | div_from_reg(new_div)); |
| 1215 | data->fan_div[nr] = new_div; |
| 1216 | nct6775_write_fan_div_common(data, nr); |
| 1217 | /* Give the chip time to sample a new speed value */ |
| 1218 | data->last_updated = jiffies; |
| 1219 | } |
| 1220 | |
| 1221 | write_min: |
| 1222 | nct6775_write_value(data, data->REG_FAN_MIN[nr], data->fan_min[nr]); |
| 1223 | mutex_unlock(&data->update_lock); |
| 1224 | |
| 1225 | return count; |
| 1226 | } |
| 1227 | |
| 1228 | static struct sensor_device_attribute sda_fan_input[] = { |
| 1229 | SENSOR_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0), |
| 1230 | SENSOR_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1), |
| 1231 | SENSOR_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 2), |
| 1232 | SENSOR_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 3), |
| 1233 | SENSOR_ATTR(fan5_input, S_IRUGO, show_fan, NULL, 4), |
| 1234 | }; |
| 1235 | |
| 1236 | static struct sensor_device_attribute sda_fan_alarm[] = { |
| 1237 | SENSOR_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, FAN_ALARM_BASE), |
| 1238 | SENSOR_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, FAN_ALARM_BASE + 1), |
| 1239 | SENSOR_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, FAN_ALARM_BASE + 2), |
| 1240 | SENSOR_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, FAN_ALARM_BASE + 3), |
| 1241 | SENSOR_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, FAN_ALARM_BASE + 4), |
| 1242 | }; |
| 1243 | |
| 1244 | static struct sensor_device_attribute sda_fan_min[] = { |
| 1245 | SENSOR_ATTR(fan1_min, S_IWUSR | S_IRUGO, show_fan_min, |
| 1246 | store_fan_min, 0), |
| 1247 | SENSOR_ATTR(fan2_min, S_IWUSR | S_IRUGO, show_fan_min, |
| 1248 | store_fan_min, 1), |
| 1249 | SENSOR_ATTR(fan3_min, S_IWUSR | S_IRUGO, show_fan_min, |
| 1250 | store_fan_min, 2), |
| 1251 | SENSOR_ATTR(fan4_min, S_IWUSR | S_IRUGO, show_fan_min, |
| 1252 | store_fan_min, 3), |
| 1253 | SENSOR_ATTR(fan5_min, S_IWUSR | S_IRUGO, show_fan_min, |
| 1254 | store_fan_min, 4), |
| 1255 | }; |
| 1256 | |
| 1257 | static struct sensor_device_attribute sda_fan_div[] = { |
| 1258 | SENSOR_ATTR(fan1_div, S_IRUGO, show_fan_div, NULL, 0), |
| 1259 | SENSOR_ATTR(fan2_div, S_IRUGO, show_fan_div, NULL, 1), |
| 1260 | SENSOR_ATTR(fan3_div, S_IRUGO, show_fan_div, NULL, 2), |
| 1261 | SENSOR_ATTR(fan4_div, S_IRUGO, show_fan_div, NULL, 3), |
| 1262 | SENSOR_ATTR(fan5_div, S_IRUGO, show_fan_div, NULL, 4), |
| 1263 | }; |
| 1264 | |
| 1265 | static ssize_t |
Guenter Roeck | aa136e5 | 2012-12-04 03:26:05 -0800 | [diff] [blame] | 1266 | show_temp_label(struct device *dev, struct device_attribute *attr, char *buf) |
| 1267 | { |
| 1268 | struct nct6775_data *data = nct6775_update_device(dev); |
| 1269 | struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr); |
| 1270 | int nr = sattr->index; |
| 1271 | return sprintf(buf, "%s\n", data->temp_label[data->temp_src[nr]]); |
| 1272 | } |
| 1273 | |
| 1274 | static ssize_t |
| 1275 | show_temp(struct device *dev, struct device_attribute *attr, char *buf) |
| 1276 | { |
| 1277 | struct nct6775_data *data = nct6775_update_device(dev); |
| 1278 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
| 1279 | int nr = sattr->nr; |
| 1280 | int index = sattr->index; |
| 1281 | |
| 1282 | return sprintf(buf, "%d\n", LM75_TEMP_FROM_REG(data->temp[index][nr])); |
| 1283 | } |
| 1284 | |
| 1285 | static ssize_t |
| 1286 | store_temp(struct device *dev, struct device_attribute *attr, const char *buf, |
| 1287 | size_t count) |
| 1288 | { |
| 1289 | struct nct6775_data *data = dev_get_drvdata(dev); |
| 1290 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
| 1291 | int nr = sattr->nr; |
| 1292 | int index = sattr->index; |
| 1293 | int err; |
| 1294 | long val; |
| 1295 | |
| 1296 | err = kstrtol(buf, 10, &val); |
| 1297 | if (err < 0) |
| 1298 | return err; |
| 1299 | |
| 1300 | mutex_lock(&data->update_lock); |
| 1301 | data->temp[index][nr] = LM75_TEMP_TO_REG(val); |
| 1302 | nct6775_write_temp(data, data->reg_temp[index][nr], |
| 1303 | data->temp[index][nr]); |
| 1304 | mutex_unlock(&data->update_lock); |
| 1305 | return count; |
| 1306 | } |
| 1307 | |
| 1308 | static ssize_t |
| 1309 | show_temp_offset(struct device *dev, struct device_attribute *attr, char *buf) |
| 1310 | { |
| 1311 | struct nct6775_data *data = nct6775_update_device(dev); |
| 1312 | struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr); |
| 1313 | |
| 1314 | return sprintf(buf, "%d\n", data->temp_offset[sattr->index] * 1000); |
| 1315 | } |
| 1316 | |
| 1317 | static ssize_t |
| 1318 | store_temp_offset(struct device *dev, struct device_attribute *attr, |
| 1319 | const char *buf, size_t count) |
| 1320 | { |
| 1321 | struct nct6775_data *data = dev_get_drvdata(dev); |
| 1322 | struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr); |
| 1323 | int nr = sattr->index; |
| 1324 | long val; |
| 1325 | int err; |
| 1326 | |
| 1327 | err = kstrtol(buf, 10, &val); |
| 1328 | if (err < 0) |
| 1329 | return err; |
| 1330 | |
| 1331 | val = clamp_val(DIV_ROUND_CLOSEST(val, 1000), -128, 127); |
| 1332 | |
| 1333 | mutex_lock(&data->update_lock); |
| 1334 | data->temp_offset[nr] = val; |
| 1335 | nct6775_write_value(data, data->REG_TEMP_OFFSET[nr], val); |
| 1336 | mutex_unlock(&data->update_lock); |
| 1337 | |
| 1338 | return count; |
| 1339 | } |
| 1340 | |
| 1341 | static ssize_t |
| 1342 | show_temp_type(struct device *dev, struct device_attribute *attr, char *buf) |
| 1343 | { |
| 1344 | struct nct6775_data *data = nct6775_update_device(dev); |
| 1345 | struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr); |
| 1346 | int nr = sattr->index; |
| 1347 | return sprintf(buf, "%d\n", (int)data->temp_type[nr]); |
| 1348 | } |
| 1349 | |
| 1350 | static ssize_t |
| 1351 | store_temp_type(struct device *dev, struct device_attribute *attr, |
| 1352 | const char *buf, size_t count) |
| 1353 | { |
| 1354 | struct nct6775_data *data = nct6775_update_device(dev); |
| 1355 | struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr); |
| 1356 | int nr = sattr->index; |
| 1357 | unsigned long val; |
| 1358 | int err; |
| 1359 | u8 vbat, diode, bit; |
| 1360 | |
| 1361 | err = kstrtoul(buf, 10, &val); |
| 1362 | if (err < 0) |
| 1363 | return err; |
| 1364 | |
| 1365 | if (val != 1 && val != 3 && val != 4) |
| 1366 | return -EINVAL; |
| 1367 | |
| 1368 | mutex_lock(&data->update_lock); |
| 1369 | |
| 1370 | data->temp_type[nr] = val; |
| 1371 | vbat = nct6775_read_value(data, data->REG_VBAT) & ~(0x02 << nr); |
| 1372 | diode = nct6775_read_value(data, data->REG_DIODE) & ~(0x02 << nr); |
| 1373 | bit = 0x02 << nr; |
| 1374 | switch (val) { |
| 1375 | case 1: /* CPU diode (diode, current mode) */ |
| 1376 | vbat |= bit; |
| 1377 | diode |= bit; |
| 1378 | break; |
| 1379 | case 3: /* diode, voltage mode */ |
| 1380 | vbat |= bit; |
| 1381 | break; |
| 1382 | case 4: /* thermistor */ |
| 1383 | break; |
| 1384 | } |
| 1385 | nct6775_write_value(data, data->REG_VBAT, vbat); |
| 1386 | nct6775_write_value(data, data->REG_DIODE, diode); |
| 1387 | |
| 1388 | mutex_unlock(&data->update_lock); |
| 1389 | return count; |
| 1390 | } |
| 1391 | |
| 1392 | static struct sensor_device_attribute_2 sda_temp_input[] = { |
| 1393 | SENSOR_ATTR_2(temp1_input, S_IRUGO, show_temp, NULL, 0, 0), |
| 1394 | SENSOR_ATTR_2(temp2_input, S_IRUGO, show_temp, NULL, 1, 0), |
| 1395 | SENSOR_ATTR_2(temp3_input, S_IRUGO, show_temp, NULL, 2, 0), |
| 1396 | SENSOR_ATTR_2(temp4_input, S_IRUGO, show_temp, NULL, 3, 0), |
| 1397 | SENSOR_ATTR_2(temp5_input, S_IRUGO, show_temp, NULL, 4, 0), |
| 1398 | SENSOR_ATTR_2(temp6_input, S_IRUGO, show_temp, NULL, 5, 0), |
| 1399 | SENSOR_ATTR_2(temp7_input, S_IRUGO, show_temp, NULL, 6, 0), |
| 1400 | SENSOR_ATTR_2(temp8_input, S_IRUGO, show_temp, NULL, 7, 0), |
| 1401 | SENSOR_ATTR_2(temp9_input, S_IRUGO, show_temp, NULL, 8, 0), |
| 1402 | SENSOR_ATTR_2(temp10_input, S_IRUGO, show_temp, NULL, 9, 0), |
| 1403 | }; |
| 1404 | |
| 1405 | static struct sensor_device_attribute sda_temp_label[] = { |
| 1406 | SENSOR_ATTR(temp1_label, S_IRUGO, show_temp_label, NULL, 0), |
| 1407 | SENSOR_ATTR(temp2_label, S_IRUGO, show_temp_label, NULL, 1), |
| 1408 | SENSOR_ATTR(temp3_label, S_IRUGO, show_temp_label, NULL, 2), |
| 1409 | SENSOR_ATTR(temp4_label, S_IRUGO, show_temp_label, NULL, 3), |
| 1410 | SENSOR_ATTR(temp5_label, S_IRUGO, show_temp_label, NULL, 4), |
| 1411 | SENSOR_ATTR(temp6_label, S_IRUGO, show_temp_label, NULL, 5), |
| 1412 | SENSOR_ATTR(temp7_label, S_IRUGO, show_temp_label, NULL, 6), |
| 1413 | SENSOR_ATTR(temp8_label, S_IRUGO, show_temp_label, NULL, 7), |
| 1414 | SENSOR_ATTR(temp9_label, S_IRUGO, show_temp_label, NULL, 8), |
| 1415 | SENSOR_ATTR(temp10_label, S_IRUGO, show_temp_label, NULL, 9), |
| 1416 | }; |
| 1417 | |
| 1418 | static struct sensor_device_attribute_2 sda_temp_max[] = { |
| 1419 | SENSOR_ATTR_2(temp1_max, S_IRUGO | S_IWUSR, show_temp, store_temp, |
| 1420 | 0, 1), |
| 1421 | SENSOR_ATTR_2(temp2_max, S_IRUGO | S_IWUSR, show_temp, store_temp, |
| 1422 | 1, 1), |
| 1423 | SENSOR_ATTR_2(temp3_max, S_IRUGO | S_IWUSR, show_temp, store_temp, |
| 1424 | 2, 1), |
| 1425 | SENSOR_ATTR_2(temp4_max, S_IRUGO | S_IWUSR, show_temp, store_temp, |
| 1426 | 3, 1), |
| 1427 | SENSOR_ATTR_2(temp5_max, S_IRUGO | S_IWUSR, show_temp, store_temp, |
| 1428 | 4, 1), |
| 1429 | SENSOR_ATTR_2(temp6_max, S_IRUGO | S_IWUSR, show_temp, store_temp, |
| 1430 | 5, 1), |
| 1431 | SENSOR_ATTR_2(temp7_max, S_IRUGO | S_IWUSR, show_temp, store_temp, |
| 1432 | 6, 1), |
| 1433 | SENSOR_ATTR_2(temp8_max, S_IRUGO | S_IWUSR, show_temp, store_temp, |
| 1434 | 7, 1), |
| 1435 | SENSOR_ATTR_2(temp9_max, S_IRUGO | S_IWUSR, show_temp, store_temp, |
| 1436 | 8, 1), |
| 1437 | SENSOR_ATTR_2(temp10_max, S_IRUGO | S_IWUSR, show_temp, store_temp, |
| 1438 | 9, 1), |
| 1439 | }; |
| 1440 | |
| 1441 | static struct sensor_device_attribute_2 sda_temp_max_hyst[] = { |
| 1442 | SENSOR_ATTR_2(temp1_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp, |
| 1443 | 0, 2), |
| 1444 | SENSOR_ATTR_2(temp2_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp, |
| 1445 | 1, 2), |
| 1446 | SENSOR_ATTR_2(temp3_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp, |
| 1447 | 2, 2), |
| 1448 | SENSOR_ATTR_2(temp4_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp, |
| 1449 | 3, 2), |
| 1450 | SENSOR_ATTR_2(temp5_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp, |
| 1451 | 4, 2), |
| 1452 | SENSOR_ATTR_2(temp6_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp, |
| 1453 | 5, 2), |
| 1454 | SENSOR_ATTR_2(temp7_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp, |
| 1455 | 6, 2), |
| 1456 | SENSOR_ATTR_2(temp8_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp, |
| 1457 | 7, 2), |
| 1458 | SENSOR_ATTR_2(temp9_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp, |
| 1459 | 8, 2), |
| 1460 | SENSOR_ATTR_2(temp10_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp, |
| 1461 | 9, 2), |
| 1462 | }; |
| 1463 | |
| 1464 | static struct sensor_device_attribute_2 sda_temp_crit[] = { |
| 1465 | SENSOR_ATTR_2(temp1_crit, S_IRUGO | S_IWUSR, show_temp, store_temp, |
| 1466 | 0, 3), |
| 1467 | SENSOR_ATTR_2(temp2_crit, S_IRUGO | S_IWUSR, show_temp, store_temp, |
| 1468 | 1, 3), |
| 1469 | SENSOR_ATTR_2(temp3_crit, S_IRUGO | S_IWUSR, show_temp, store_temp, |
| 1470 | 2, 3), |
| 1471 | SENSOR_ATTR_2(temp4_crit, S_IRUGO | S_IWUSR, show_temp, store_temp, |
| 1472 | 3, 3), |
| 1473 | SENSOR_ATTR_2(temp5_crit, S_IRUGO | S_IWUSR, show_temp, store_temp, |
| 1474 | 4, 3), |
| 1475 | SENSOR_ATTR_2(temp6_crit, S_IRUGO | S_IWUSR, show_temp, store_temp, |
| 1476 | 5, 3), |
| 1477 | SENSOR_ATTR_2(temp7_crit, S_IRUGO | S_IWUSR, show_temp, store_temp, |
| 1478 | 6, 3), |
| 1479 | SENSOR_ATTR_2(temp8_crit, S_IRUGO | S_IWUSR, show_temp, store_temp, |
| 1480 | 7, 3), |
| 1481 | SENSOR_ATTR_2(temp9_crit, S_IRUGO | S_IWUSR, show_temp, store_temp, |
| 1482 | 8, 3), |
| 1483 | SENSOR_ATTR_2(temp10_crit, S_IRUGO | S_IWUSR, show_temp, store_temp, |
| 1484 | 9, 3), |
| 1485 | }; |
| 1486 | |
| 1487 | static struct sensor_device_attribute sda_temp_offset[] = { |
| 1488 | SENSOR_ATTR(temp1_offset, S_IRUGO | S_IWUSR, show_temp_offset, |
| 1489 | store_temp_offset, 0), |
| 1490 | SENSOR_ATTR(temp2_offset, S_IRUGO | S_IWUSR, show_temp_offset, |
| 1491 | store_temp_offset, 1), |
| 1492 | SENSOR_ATTR(temp3_offset, S_IRUGO | S_IWUSR, show_temp_offset, |
| 1493 | store_temp_offset, 2), |
| 1494 | SENSOR_ATTR(temp4_offset, S_IRUGO | S_IWUSR, show_temp_offset, |
| 1495 | store_temp_offset, 3), |
| 1496 | SENSOR_ATTR(temp5_offset, S_IRUGO | S_IWUSR, show_temp_offset, |
| 1497 | store_temp_offset, 4), |
| 1498 | SENSOR_ATTR(temp6_offset, S_IRUGO | S_IWUSR, show_temp_offset, |
| 1499 | store_temp_offset, 5), |
| 1500 | }; |
| 1501 | |
| 1502 | static struct sensor_device_attribute sda_temp_type[] = { |
| 1503 | SENSOR_ATTR(temp1_type, S_IRUGO | S_IWUSR, show_temp_type, |
| 1504 | store_temp_type, 0), |
| 1505 | SENSOR_ATTR(temp2_type, S_IRUGO | S_IWUSR, show_temp_type, |
| 1506 | store_temp_type, 1), |
| 1507 | SENSOR_ATTR(temp3_type, S_IRUGO | S_IWUSR, show_temp_type, |
| 1508 | store_temp_type, 2), |
| 1509 | SENSOR_ATTR(temp4_type, S_IRUGO | S_IWUSR, show_temp_type, |
| 1510 | store_temp_type, 3), |
| 1511 | SENSOR_ATTR(temp5_type, S_IRUGO | S_IWUSR, show_temp_type, |
| 1512 | store_temp_type, 4), |
| 1513 | SENSOR_ATTR(temp6_type, S_IRUGO | S_IWUSR, show_temp_type, |
| 1514 | store_temp_type, 5), |
| 1515 | }; |
| 1516 | |
| 1517 | static struct sensor_device_attribute sda_temp_alarm[] = { |
| 1518 | SENSOR_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, |
| 1519 | TEMP_ALARM_BASE), |
| 1520 | SENSOR_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, |
| 1521 | TEMP_ALARM_BASE + 1), |
| 1522 | SENSOR_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, |
| 1523 | TEMP_ALARM_BASE + 2), |
| 1524 | SENSOR_ATTR(temp4_alarm, S_IRUGO, show_alarm, NULL, |
| 1525 | TEMP_ALARM_BASE + 3), |
| 1526 | SENSOR_ATTR(temp5_alarm, S_IRUGO, show_alarm, NULL, |
| 1527 | TEMP_ALARM_BASE + 4), |
| 1528 | SENSOR_ATTR(temp6_alarm, S_IRUGO, show_alarm, NULL, |
| 1529 | TEMP_ALARM_BASE + 5), |
| 1530 | }; |
| 1531 | |
| 1532 | #define NUM_TEMP_ALARM ARRAY_SIZE(sda_temp_alarm) |
| 1533 | |
| 1534 | static ssize_t |
Guenter Roeck | 9de2e2e | 2012-05-20 19:29:48 -0700 | [diff] [blame] | 1535 | show_name(struct device *dev, struct device_attribute *attr, char *buf) |
| 1536 | { |
| 1537 | struct nct6775_data *data = dev_get_drvdata(dev); |
| 1538 | |
| 1539 | return sprintf(buf, "%s\n", data->name); |
| 1540 | } |
| 1541 | |
| 1542 | static DEVICE_ATTR(name, S_IRUGO, show_name, NULL); |
| 1543 | |
| 1544 | static ssize_t |
| 1545 | show_vid(struct device *dev, struct device_attribute *attr, char *buf) |
| 1546 | { |
| 1547 | struct nct6775_data *data = dev_get_drvdata(dev); |
| 1548 | return sprintf(buf, "%d\n", vid_from_reg(data->vid, data->vrm)); |
| 1549 | } |
| 1550 | |
| 1551 | static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL); |
| 1552 | |
Guenter Roeck | a6bd587 | 2012-12-04 03:13:34 -0800 | [diff] [blame] | 1553 | /* Case open detection */ |
| 1554 | |
| 1555 | static ssize_t |
| 1556 | clear_caseopen(struct device *dev, struct device_attribute *attr, |
| 1557 | const char *buf, size_t count) |
| 1558 | { |
| 1559 | struct nct6775_data *data = dev_get_drvdata(dev); |
| 1560 | struct nct6775_sio_data *sio_data = dev->platform_data; |
| 1561 | int nr = to_sensor_dev_attr(attr)->index - INTRUSION_ALARM_BASE; |
| 1562 | unsigned long val; |
| 1563 | u8 reg; |
| 1564 | int ret; |
| 1565 | |
| 1566 | if (kstrtoul(buf, 10, &val) || val != 0) |
| 1567 | return -EINVAL; |
| 1568 | |
| 1569 | mutex_lock(&data->update_lock); |
| 1570 | |
| 1571 | /* |
| 1572 | * Use CR registers to clear caseopen status. |
| 1573 | * The CR registers are the same for all chips, and not all chips |
| 1574 | * support clearing the caseopen status through "regular" registers. |
| 1575 | */ |
| 1576 | ret = superio_enter(sio_data->sioreg); |
| 1577 | if (ret) { |
| 1578 | count = ret; |
| 1579 | goto error; |
| 1580 | } |
| 1581 | |
| 1582 | superio_select(sio_data->sioreg, NCT6775_LD_ACPI); |
| 1583 | reg = superio_inb(sio_data->sioreg, NCT6775_REG_CR_CASEOPEN_CLR[nr]); |
| 1584 | reg |= NCT6775_CR_CASEOPEN_CLR_MASK[nr]; |
| 1585 | superio_outb(sio_data->sioreg, NCT6775_REG_CR_CASEOPEN_CLR[nr], reg); |
| 1586 | reg &= ~NCT6775_CR_CASEOPEN_CLR_MASK[nr]; |
| 1587 | superio_outb(sio_data->sioreg, NCT6775_REG_CR_CASEOPEN_CLR[nr], reg); |
| 1588 | superio_exit(sio_data->sioreg); |
| 1589 | |
| 1590 | data->valid = false; /* Force cache refresh */ |
| 1591 | error: |
| 1592 | mutex_unlock(&data->update_lock); |
| 1593 | return count; |
| 1594 | } |
| 1595 | |
| 1596 | static struct sensor_device_attribute sda_caseopen[] = { |
| 1597 | SENSOR_ATTR(intrusion0_alarm, S_IWUSR | S_IRUGO, show_alarm, |
| 1598 | clear_caseopen, INTRUSION_ALARM_BASE), |
| 1599 | SENSOR_ATTR(intrusion1_alarm, S_IWUSR | S_IRUGO, show_alarm, |
| 1600 | clear_caseopen, INTRUSION_ALARM_BASE + 1), |
| 1601 | }; |
| 1602 | |
Guenter Roeck | 9de2e2e | 2012-05-20 19:29:48 -0700 | [diff] [blame] | 1603 | /* |
| 1604 | * Driver and device management |
| 1605 | */ |
| 1606 | |
| 1607 | static void nct6775_device_remove_files(struct device *dev) |
| 1608 | { |
| 1609 | /* |
| 1610 | * some entries in the following arrays may not have been used in |
| 1611 | * device_create_file(), but device_remove_file() will ignore them |
| 1612 | */ |
| 1613 | int i; |
| 1614 | struct nct6775_data *data = dev_get_drvdata(dev); |
| 1615 | |
| 1616 | for (i = 0; i < data->in_num; i++) |
| 1617 | sysfs_remove_group(&dev->kobj, &nct6775_group_in[i]); |
| 1618 | |
Guenter Roeck | 1c65dc3 | 2012-12-04 07:56:24 -0800 | [diff] [blame^] | 1619 | for (i = 0; i < 5; i++) { |
| 1620 | device_remove_file(dev, &sda_fan_input[i].dev_attr); |
| 1621 | device_remove_file(dev, &sda_fan_alarm[i].dev_attr); |
| 1622 | device_remove_file(dev, &sda_fan_div[i].dev_attr); |
| 1623 | device_remove_file(dev, &sda_fan_min[i].dev_attr); |
| 1624 | } |
Guenter Roeck | aa136e5 | 2012-12-04 03:26:05 -0800 | [diff] [blame] | 1625 | for (i = 0; i < NUM_TEMP; i++) { |
| 1626 | if (!(data->have_temp & (1 << i))) |
| 1627 | continue; |
| 1628 | device_remove_file(dev, &sda_temp_input[i].dev_attr); |
| 1629 | device_remove_file(dev, &sda_temp_label[i].dev_attr); |
| 1630 | device_remove_file(dev, &sda_temp_max[i].dev_attr); |
| 1631 | device_remove_file(dev, &sda_temp_max_hyst[i].dev_attr); |
| 1632 | device_remove_file(dev, &sda_temp_crit[i].dev_attr); |
| 1633 | if (!(data->have_temp_fixed & (1 << i))) |
| 1634 | continue; |
| 1635 | device_remove_file(dev, &sda_temp_type[i].dev_attr); |
| 1636 | device_remove_file(dev, &sda_temp_offset[i].dev_attr); |
| 1637 | if (i >= NUM_TEMP_ALARM) |
| 1638 | continue; |
| 1639 | device_remove_file(dev, &sda_temp_alarm[i].dev_attr); |
| 1640 | } |
| 1641 | |
Guenter Roeck | a6bd587 | 2012-12-04 03:13:34 -0800 | [diff] [blame] | 1642 | device_remove_file(dev, &sda_caseopen[0].dev_attr); |
| 1643 | device_remove_file(dev, &sda_caseopen[1].dev_attr); |
| 1644 | |
Guenter Roeck | 9de2e2e | 2012-05-20 19:29:48 -0700 | [diff] [blame] | 1645 | device_remove_file(dev, &dev_attr_name); |
| 1646 | device_remove_file(dev, &dev_attr_cpu0_vid); |
| 1647 | } |
| 1648 | |
| 1649 | /* Get the monitoring functions started */ |
| 1650 | static inline void nct6775_init_device(struct nct6775_data *data) |
| 1651 | { |
Guenter Roeck | aa136e5 | 2012-12-04 03:26:05 -0800 | [diff] [blame] | 1652 | int i; |
| 1653 | u8 tmp, diode; |
Guenter Roeck | 9de2e2e | 2012-05-20 19:29:48 -0700 | [diff] [blame] | 1654 | |
| 1655 | /* Start monitoring if needed */ |
| 1656 | if (data->REG_CONFIG) { |
| 1657 | tmp = nct6775_read_value(data, data->REG_CONFIG); |
| 1658 | if (!(tmp & 0x01)) |
| 1659 | nct6775_write_value(data, data->REG_CONFIG, tmp | 0x01); |
| 1660 | } |
| 1661 | |
Guenter Roeck | aa136e5 | 2012-12-04 03:26:05 -0800 | [diff] [blame] | 1662 | /* Enable temperature sensors if needed */ |
| 1663 | for (i = 0; i < NUM_TEMP; i++) { |
| 1664 | if (!(data->have_temp & (1 << i))) |
| 1665 | continue; |
| 1666 | if (!data->reg_temp_config[i]) |
| 1667 | continue; |
| 1668 | tmp = nct6775_read_value(data, data->reg_temp_config[i]); |
| 1669 | if (tmp & 0x01) |
| 1670 | nct6775_write_value(data, data->reg_temp_config[i], |
| 1671 | tmp & 0xfe); |
| 1672 | } |
| 1673 | |
Guenter Roeck | 9de2e2e | 2012-05-20 19:29:48 -0700 | [diff] [blame] | 1674 | /* Enable VBAT monitoring if needed */ |
| 1675 | tmp = nct6775_read_value(data, data->REG_VBAT); |
| 1676 | if (!(tmp & 0x01)) |
| 1677 | nct6775_write_value(data, data->REG_VBAT, tmp | 0x01); |
Guenter Roeck | aa136e5 | 2012-12-04 03:26:05 -0800 | [diff] [blame] | 1678 | |
| 1679 | diode = nct6775_read_value(data, data->REG_DIODE); |
| 1680 | |
| 1681 | for (i = 0; i < data->temp_fixed_num; i++) { |
| 1682 | if (!(data->have_temp_fixed & (1 << i))) |
| 1683 | continue; |
| 1684 | if ((tmp & (0x02 << i))) /* diode */ |
| 1685 | data->temp_type[i] = 3 - ((diode >> i) & 0x02); |
| 1686 | else /* thermistor */ |
| 1687 | data->temp_type[i] = 4; |
| 1688 | } |
Guenter Roeck | 9de2e2e | 2012-05-20 19:29:48 -0700 | [diff] [blame] | 1689 | } |
| 1690 | |
Guenter Roeck | 1c65dc3 | 2012-12-04 07:56:24 -0800 | [diff] [blame^] | 1691 | static int |
| 1692 | nct6775_check_fan_inputs(const struct nct6775_sio_data *sio_data, |
| 1693 | struct nct6775_data *data) |
| 1694 | { |
| 1695 | int regval; |
| 1696 | bool fan3pin, fan3min, fan4pin, fan4min, fan5pin; |
| 1697 | int ret; |
| 1698 | |
| 1699 | ret = superio_enter(sio_data->sioreg); |
| 1700 | if (ret) |
| 1701 | return ret; |
| 1702 | |
| 1703 | /* fan4 and fan5 share some pins with the GPIO and serial flash */ |
| 1704 | if (data->kind == nct6775) { |
| 1705 | regval = superio_inb(sio_data->sioreg, 0x2c); |
| 1706 | |
| 1707 | fan3pin = regval & (1 << 6); |
| 1708 | fan3min = fan3pin; |
| 1709 | |
| 1710 | /* On NCT6775, fan4 shares pins with the fdc interface */ |
| 1711 | fan4pin = !(superio_inb(sio_data->sioreg, 0x2A) & 0x80); |
| 1712 | fan4min = 0; |
| 1713 | fan5pin = 0; |
| 1714 | } else if (data->kind == nct6776) { |
| 1715 | bool gpok = superio_inb(sio_data->sioreg, 0x27) & 0x80; |
| 1716 | |
| 1717 | superio_select(sio_data->sioreg, NCT6775_LD_HWM); |
| 1718 | regval = superio_inb(sio_data->sioreg, SIO_REG_ENABLE); |
| 1719 | |
| 1720 | if (regval & 0x80) |
| 1721 | fan3pin = gpok; |
| 1722 | else |
| 1723 | fan3pin = !(superio_inb(sio_data->sioreg, 0x24) & 0x40); |
| 1724 | |
| 1725 | if (regval & 0x40) |
| 1726 | fan4pin = gpok; |
| 1727 | else |
| 1728 | fan4pin = superio_inb(sio_data->sioreg, 0x1C) & 0x01; |
| 1729 | |
| 1730 | if (regval & 0x20) |
| 1731 | fan5pin = gpok; |
| 1732 | else |
| 1733 | fan5pin = superio_inb(sio_data->sioreg, 0x1C) & 0x02; |
| 1734 | |
| 1735 | fan4min = fan4pin; |
| 1736 | fan3min = fan3pin; |
| 1737 | } else { /* NCT6779D */ |
| 1738 | regval = superio_inb(sio_data->sioreg, 0x1c); |
| 1739 | |
| 1740 | fan3pin = !(regval & (1 << 5)); |
| 1741 | fan4pin = !(regval & (1 << 6)); |
| 1742 | fan5pin = !(regval & (1 << 7)); |
| 1743 | |
| 1744 | fan3min = fan3pin; |
| 1745 | fan4min = fan4pin; |
| 1746 | } |
| 1747 | |
| 1748 | superio_exit(sio_data->sioreg); |
| 1749 | |
| 1750 | data->has_fan = data->has_fan_min = 0x03; /* fan1 and fan2 */ |
| 1751 | data->has_fan |= fan3pin << 2; |
| 1752 | data->has_fan_min |= fan3min << 2; |
| 1753 | |
| 1754 | data->has_fan |= (fan4pin << 3) | (fan5pin << 4); |
| 1755 | data->has_fan_min |= (fan4min << 3) | (fan5pin << 4); |
| 1756 | |
| 1757 | return 0; |
| 1758 | } |
| 1759 | |
Guenter Roeck | 9de2e2e | 2012-05-20 19:29:48 -0700 | [diff] [blame] | 1760 | static int nct6775_probe(struct platform_device *pdev) |
| 1761 | { |
| 1762 | struct device *dev = &pdev->dev; |
| 1763 | struct nct6775_sio_data *sio_data = dev->platform_data; |
| 1764 | struct nct6775_data *data; |
| 1765 | struct resource *res; |
Guenter Roeck | aa136e5 | 2012-12-04 03:26:05 -0800 | [diff] [blame] | 1766 | int i, s, err = 0; |
| 1767 | int src, mask, available; |
| 1768 | const u16 *reg_temp, *reg_temp_over, *reg_temp_hyst, *reg_temp_config; |
| 1769 | const u16 *reg_temp_alternate, *reg_temp_crit; |
| 1770 | int num_reg_temp; |
Guenter Roeck | 9de2e2e | 2012-05-20 19:29:48 -0700 | [diff] [blame] | 1771 | |
| 1772 | res = platform_get_resource(pdev, IORESOURCE_IO, 0); |
| 1773 | if (!devm_request_region(&pdev->dev, res->start, IOREGION_LENGTH, |
| 1774 | DRVNAME)) |
| 1775 | return -EBUSY; |
| 1776 | |
| 1777 | data = devm_kzalloc(&pdev->dev, sizeof(struct nct6775_data), |
| 1778 | GFP_KERNEL); |
| 1779 | if (!data) |
| 1780 | return -ENOMEM; |
| 1781 | |
| 1782 | data->kind = sio_data->kind; |
| 1783 | data->addr = res->start; |
| 1784 | mutex_init(&data->lock); |
| 1785 | mutex_init(&data->update_lock); |
| 1786 | data->name = nct6775_device_names[data->kind]; |
| 1787 | data->bank = 0xff; /* Force initial bank selection */ |
| 1788 | platform_set_drvdata(pdev, data); |
| 1789 | |
| 1790 | switch (data->kind) { |
| 1791 | case nct6775: |
| 1792 | data->in_num = 9; |
Guenter Roeck | 1c65dc3 | 2012-12-04 07:56:24 -0800 | [diff] [blame^] | 1793 | data->has_fan_div = true; |
Guenter Roeck | aa136e5 | 2012-12-04 03:26:05 -0800 | [diff] [blame] | 1794 | data->temp_fixed_num = 3; |
Guenter Roeck | 9de2e2e | 2012-05-20 19:29:48 -0700 | [diff] [blame] | 1795 | |
| 1796 | data->ALARM_BITS = NCT6775_ALARM_BITS; |
| 1797 | |
Guenter Roeck | 1c65dc3 | 2012-12-04 07:56:24 -0800 | [diff] [blame^] | 1798 | data->fan_from_reg = fan_from_reg16; |
| 1799 | data->fan_from_reg_min = fan_from_reg8; |
| 1800 | |
Guenter Roeck | aa136e5 | 2012-12-04 03:26:05 -0800 | [diff] [blame] | 1801 | data->temp_label = nct6775_temp_label; |
| 1802 | data->temp_label_num = ARRAY_SIZE(nct6775_temp_label); |
| 1803 | |
Guenter Roeck | 9de2e2e | 2012-05-20 19:29:48 -0700 | [diff] [blame] | 1804 | data->REG_CONFIG = NCT6775_REG_CONFIG; |
| 1805 | data->REG_VBAT = NCT6775_REG_VBAT; |
Guenter Roeck | aa136e5 | 2012-12-04 03:26:05 -0800 | [diff] [blame] | 1806 | data->REG_DIODE = NCT6775_REG_DIODE; |
Guenter Roeck | 9de2e2e | 2012-05-20 19:29:48 -0700 | [diff] [blame] | 1807 | data->REG_VIN = NCT6775_REG_IN; |
| 1808 | data->REG_IN_MINMAX[0] = NCT6775_REG_IN_MIN; |
| 1809 | data->REG_IN_MINMAX[1] = NCT6775_REG_IN_MAX; |
Guenter Roeck | 1c65dc3 | 2012-12-04 07:56:24 -0800 | [diff] [blame^] | 1810 | data->REG_FAN = NCT6775_REG_FAN; |
| 1811 | data->REG_FAN_MIN = NCT6775_REG_FAN_MIN; |
Guenter Roeck | aa136e5 | 2012-12-04 03:26:05 -0800 | [diff] [blame] | 1812 | data->REG_TEMP_OFFSET = NCT6775_REG_TEMP_OFFSET; |
| 1813 | data->REG_TEMP_SOURCE = NCT6775_REG_TEMP_SOURCE; |
Guenter Roeck | 9de2e2e | 2012-05-20 19:29:48 -0700 | [diff] [blame] | 1814 | data->REG_ALARM = NCT6775_REG_ALARM; |
Guenter Roeck | aa136e5 | 2012-12-04 03:26:05 -0800 | [diff] [blame] | 1815 | |
| 1816 | reg_temp = NCT6775_REG_TEMP; |
| 1817 | num_reg_temp = ARRAY_SIZE(NCT6775_REG_TEMP); |
| 1818 | reg_temp_over = NCT6775_REG_TEMP_OVER; |
| 1819 | reg_temp_hyst = NCT6775_REG_TEMP_HYST; |
| 1820 | reg_temp_config = NCT6775_REG_TEMP_CONFIG; |
| 1821 | reg_temp_alternate = NCT6775_REG_TEMP_ALTERNATE; |
| 1822 | reg_temp_crit = NCT6775_REG_TEMP_CRIT; |
| 1823 | |
Guenter Roeck | 9de2e2e | 2012-05-20 19:29:48 -0700 | [diff] [blame] | 1824 | break; |
| 1825 | case nct6776: |
| 1826 | data->in_num = 9; |
Guenter Roeck | 1c65dc3 | 2012-12-04 07:56:24 -0800 | [diff] [blame^] | 1827 | data->has_fan_div = false; |
Guenter Roeck | aa136e5 | 2012-12-04 03:26:05 -0800 | [diff] [blame] | 1828 | data->temp_fixed_num = 3; |
Guenter Roeck | 9de2e2e | 2012-05-20 19:29:48 -0700 | [diff] [blame] | 1829 | |
| 1830 | data->ALARM_BITS = NCT6776_ALARM_BITS; |
| 1831 | |
Guenter Roeck | 1c65dc3 | 2012-12-04 07:56:24 -0800 | [diff] [blame^] | 1832 | data->fan_from_reg = fan_from_reg13; |
| 1833 | data->fan_from_reg_min = fan_from_reg13; |
| 1834 | |
Guenter Roeck | aa136e5 | 2012-12-04 03:26:05 -0800 | [diff] [blame] | 1835 | data->temp_label = nct6776_temp_label; |
| 1836 | data->temp_label_num = ARRAY_SIZE(nct6776_temp_label); |
| 1837 | |
Guenter Roeck | 9de2e2e | 2012-05-20 19:29:48 -0700 | [diff] [blame] | 1838 | data->REG_CONFIG = NCT6775_REG_CONFIG; |
| 1839 | data->REG_VBAT = NCT6775_REG_VBAT; |
Guenter Roeck | aa136e5 | 2012-12-04 03:26:05 -0800 | [diff] [blame] | 1840 | data->REG_DIODE = NCT6775_REG_DIODE; |
Guenter Roeck | 9de2e2e | 2012-05-20 19:29:48 -0700 | [diff] [blame] | 1841 | data->REG_VIN = NCT6775_REG_IN; |
| 1842 | data->REG_IN_MINMAX[0] = NCT6775_REG_IN_MIN; |
| 1843 | data->REG_IN_MINMAX[1] = NCT6775_REG_IN_MAX; |
Guenter Roeck | 1c65dc3 | 2012-12-04 07:56:24 -0800 | [diff] [blame^] | 1844 | data->REG_FAN = NCT6775_REG_FAN; |
| 1845 | data->REG_FAN_MIN = NCT6776_REG_FAN_MIN; |
Guenter Roeck | aa136e5 | 2012-12-04 03:26:05 -0800 | [diff] [blame] | 1846 | data->REG_TEMP_OFFSET = NCT6775_REG_TEMP_OFFSET; |
| 1847 | data->REG_TEMP_SOURCE = NCT6775_REG_TEMP_SOURCE; |
Guenter Roeck | 9de2e2e | 2012-05-20 19:29:48 -0700 | [diff] [blame] | 1848 | data->REG_ALARM = NCT6775_REG_ALARM; |
Guenter Roeck | aa136e5 | 2012-12-04 03:26:05 -0800 | [diff] [blame] | 1849 | |
| 1850 | reg_temp = NCT6775_REG_TEMP; |
| 1851 | num_reg_temp = ARRAY_SIZE(NCT6775_REG_TEMP); |
| 1852 | reg_temp_over = NCT6775_REG_TEMP_OVER; |
| 1853 | reg_temp_hyst = NCT6775_REG_TEMP_HYST; |
| 1854 | reg_temp_config = NCT6776_REG_TEMP_CONFIG; |
| 1855 | reg_temp_alternate = NCT6776_REG_TEMP_ALTERNATE; |
| 1856 | reg_temp_crit = NCT6776_REG_TEMP_CRIT; |
| 1857 | |
Guenter Roeck | 9de2e2e | 2012-05-20 19:29:48 -0700 | [diff] [blame] | 1858 | break; |
| 1859 | case nct6779: |
| 1860 | data->in_num = 15; |
Guenter Roeck | 1c65dc3 | 2012-12-04 07:56:24 -0800 | [diff] [blame^] | 1861 | data->has_fan_div = false; |
Guenter Roeck | aa136e5 | 2012-12-04 03:26:05 -0800 | [diff] [blame] | 1862 | data->temp_fixed_num = 6; |
Guenter Roeck | 9de2e2e | 2012-05-20 19:29:48 -0700 | [diff] [blame] | 1863 | |
| 1864 | data->ALARM_BITS = NCT6779_ALARM_BITS; |
| 1865 | |
Guenter Roeck | 1c65dc3 | 2012-12-04 07:56:24 -0800 | [diff] [blame^] | 1866 | data->fan_from_reg = fan_from_reg13; |
| 1867 | data->fan_from_reg_min = fan_from_reg13; |
| 1868 | |
Guenter Roeck | aa136e5 | 2012-12-04 03:26:05 -0800 | [diff] [blame] | 1869 | data->temp_label = nct6779_temp_label; |
| 1870 | data->temp_label_num = ARRAY_SIZE(nct6779_temp_label); |
| 1871 | |
Guenter Roeck | 9de2e2e | 2012-05-20 19:29:48 -0700 | [diff] [blame] | 1872 | data->REG_CONFIG = NCT6775_REG_CONFIG; |
| 1873 | data->REG_VBAT = NCT6775_REG_VBAT; |
Guenter Roeck | aa136e5 | 2012-12-04 03:26:05 -0800 | [diff] [blame] | 1874 | data->REG_DIODE = NCT6775_REG_DIODE; |
Guenter Roeck | 9de2e2e | 2012-05-20 19:29:48 -0700 | [diff] [blame] | 1875 | data->REG_VIN = NCT6779_REG_IN; |
| 1876 | data->REG_IN_MINMAX[0] = NCT6775_REG_IN_MIN; |
| 1877 | data->REG_IN_MINMAX[1] = NCT6775_REG_IN_MAX; |
Guenter Roeck | 1c65dc3 | 2012-12-04 07:56:24 -0800 | [diff] [blame^] | 1878 | data->REG_FAN = NCT6779_REG_FAN; |
| 1879 | data->REG_FAN_MIN = NCT6776_REG_FAN_MIN; |
Guenter Roeck | aa136e5 | 2012-12-04 03:26:05 -0800 | [diff] [blame] | 1880 | data->REG_TEMP_OFFSET = NCT6779_REG_TEMP_OFFSET; |
| 1881 | data->REG_TEMP_SOURCE = NCT6775_REG_TEMP_SOURCE; |
Guenter Roeck | 9de2e2e | 2012-05-20 19:29:48 -0700 | [diff] [blame] | 1882 | data->REG_ALARM = NCT6779_REG_ALARM; |
Guenter Roeck | aa136e5 | 2012-12-04 03:26:05 -0800 | [diff] [blame] | 1883 | |
| 1884 | reg_temp = NCT6779_REG_TEMP; |
| 1885 | num_reg_temp = ARRAY_SIZE(NCT6779_REG_TEMP); |
| 1886 | reg_temp_over = NCT6779_REG_TEMP_OVER; |
| 1887 | reg_temp_hyst = NCT6779_REG_TEMP_HYST; |
| 1888 | reg_temp_config = NCT6779_REG_TEMP_CONFIG; |
| 1889 | reg_temp_alternate = NCT6779_REG_TEMP_ALTERNATE; |
| 1890 | reg_temp_crit = NCT6779_REG_TEMP_CRIT; |
| 1891 | |
Guenter Roeck | 9de2e2e | 2012-05-20 19:29:48 -0700 | [diff] [blame] | 1892 | break; |
| 1893 | default: |
| 1894 | return -ENODEV; |
| 1895 | } |
| 1896 | data->have_in = (1 << data->in_num) - 1; |
Guenter Roeck | aa136e5 | 2012-12-04 03:26:05 -0800 | [diff] [blame] | 1897 | data->have_temp = 0; |
| 1898 | |
| 1899 | /* |
| 1900 | * On some boards, not all available temperature sources are monitored, |
| 1901 | * even though some of the monitoring registers are unused. |
| 1902 | * Get list of unused monitoring registers, then detect if any fan |
| 1903 | * controls are configured to use unmonitored temperature sources. |
| 1904 | * If so, assign the unmonitored temperature sources to available |
| 1905 | * monitoring registers. |
| 1906 | */ |
| 1907 | mask = 0; |
| 1908 | available = 0; |
| 1909 | for (i = 0; i < num_reg_temp; i++) { |
| 1910 | if (reg_temp[i] == 0) |
| 1911 | continue; |
| 1912 | |
| 1913 | src = nct6775_read_value(data, data->REG_TEMP_SOURCE[i]) & 0x1f; |
| 1914 | if (!src || (mask & (1 << src))) |
| 1915 | available |= 1 << i; |
| 1916 | |
| 1917 | mask |= 1 << src; |
| 1918 | } |
| 1919 | |
| 1920 | mask = 0; |
| 1921 | s = NUM_TEMP_FIXED; /* First dynamic temperature attribute */ |
| 1922 | for (i = 0; i < num_reg_temp; i++) { |
| 1923 | if (reg_temp[i] == 0) |
| 1924 | continue; |
| 1925 | |
| 1926 | src = nct6775_read_value(data, data->REG_TEMP_SOURCE[i]) & 0x1f; |
| 1927 | if (!src || (mask & (1 << src))) |
| 1928 | continue; |
| 1929 | |
| 1930 | if (src >= data->temp_label_num || |
| 1931 | !strlen(data->temp_label[src])) { |
| 1932 | dev_info(dev, |
| 1933 | "Invalid temperature source %d at index %d, source register 0x%x, temp register 0x%x\n", |
| 1934 | src, i, data->REG_TEMP_SOURCE[i], reg_temp[i]); |
| 1935 | continue; |
| 1936 | } |
| 1937 | |
| 1938 | mask |= 1 << src; |
| 1939 | |
| 1940 | /* Use fixed index for SYSTIN(1), CPUTIN(2), AUXTIN(3) */ |
| 1941 | if (src <= data->temp_fixed_num) { |
| 1942 | data->have_temp |= 1 << (src - 1); |
| 1943 | data->have_temp_fixed |= 1 << (src - 1); |
| 1944 | data->reg_temp[0][src - 1] = reg_temp[i]; |
| 1945 | data->reg_temp[1][src - 1] = reg_temp_over[i]; |
| 1946 | data->reg_temp[2][src - 1] = reg_temp_hyst[i]; |
| 1947 | data->reg_temp_config[src - 1] = reg_temp_config[i]; |
| 1948 | data->temp_src[src - 1] = src; |
| 1949 | continue; |
| 1950 | } |
| 1951 | |
| 1952 | if (s >= NUM_TEMP) |
| 1953 | continue; |
| 1954 | |
| 1955 | /* Use dynamic index for other sources */ |
| 1956 | data->have_temp |= 1 << s; |
| 1957 | data->reg_temp[0][s] = reg_temp[i]; |
| 1958 | data->reg_temp[1][s] = reg_temp_over[i]; |
| 1959 | data->reg_temp[2][s] = reg_temp_hyst[i]; |
| 1960 | data->reg_temp_config[s] = reg_temp_config[i]; |
| 1961 | if (reg_temp_crit[src - 1]) |
| 1962 | data->reg_temp[3][s] = reg_temp_crit[src - 1]; |
| 1963 | |
| 1964 | data->temp_src[s] = src; |
| 1965 | s++; |
| 1966 | } |
| 1967 | |
| 1968 | #ifdef USE_ALTERNATE |
| 1969 | /* |
| 1970 | * Go through the list of alternate temp registers and enable |
| 1971 | * if possible. |
| 1972 | * The temperature is already monitored if the respective bit in <mask> |
| 1973 | * is set. |
| 1974 | */ |
| 1975 | for (i = 0; i < data->temp_label_num - 1; i++) { |
| 1976 | if (!reg_temp_alternate[i]) |
| 1977 | continue; |
| 1978 | if (mask & (1 << (i + 1))) |
| 1979 | continue; |
| 1980 | if (i < data->temp_fixed_num) { |
| 1981 | if (data->have_temp & (1 << i)) |
| 1982 | continue; |
| 1983 | data->have_temp |= 1 << i; |
| 1984 | data->have_temp_fixed |= 1 << i; |
| 1985 | data->reg_temp[0][i] = reg_temp_alternate[i]; |
| 1986 | data->reg_temp[1][i] = reg_temp_over[i]; |
| 1987 | data->reg_temp[2][i] = reg_temp_hyst[i]; |
| 1988 | data->temp_src[i] = i + 1; |
| 1989 | continue; |
| 1990 | } |
| 1991 | |
| 1992 | if (s >= NUM_TEMP) /* Abort if no more space */ |
| 1993 | break; |
| 1994 | |
| 1995 | data->have_temp |= 1 << s; |
| 1996 | data->reg_temp[0][s] = reg_temp_alternate[i]; |
| 1997 | data->temp_src[s] = i + 1; |
| 1998 | s++; |
| 1999 | } |
| 2000 | #endif /* USE_ALTERNATE */ |
| 2001 | |
| 2002 | switch (data->kind) { |
| 2003 | case nct6775: |
| 2004 | break; |
| 2005 | case nct6776: |
| 2006 | /* |
| 2007 | * On NCT6776, AUXTIN and VIN3 pins are shared. |
| 2008 | * Only way to detect it is to check if AUXTIN is used |
| 2009 | * as a temperature source, and if that source is |
| 2010 | * enabled. |
| 2011 | * |
| 2012 | * If that is the case, disable in6, which reports VIN3. |
| 2013 | * Otherwise disable temp3. |
| 2014 | */ |
| 2015 | if (data->have_temp & (1 << 2)) { |
| 2016 | u8 reg = nct6775_read_value(data, |
| 2017 | data->reg_temp_config[2]); |
| 2018 | if (reg & 0x01) |
| 2019 | data->have_temp &= ~(1 << 2); |
| 2020 | else |
| 2021 | data->have_in &= ~(1 << 6); |
| 2022 | } |
| 2023 | break; |
| 2024 | case nct6779: |
| 2025 | /* |
| 2026 | * Shared pins: |
| 2027 | * VIN4 / AUXTIN0 |
| 2028 | * VIN5 / AUXTIN1 |
| 2029 | * VIN6 / AUXTIN2 |
| 2030 | * VIN7 / AUXTIN3 |
| 2031 | * |
| 2032 | * There does not seem to be a clean way to detect if VINx or |
| 2033 | * AUXTINx is active, so for keep both sensor types enabled |
| 2034 | * for now. |
| 2035 | */ |
| 2036 | break; |
| 2037 | } |
Guenter Roeck | 9de2e2e | 2012-05-20 19:29:48 -0700 | [diff] [blame] | 2038 | |
| 2039 | /* Initialize the chip */ |
| 2040 | nct6775_init_device(data); |
| 2041 | |
| 2042 | data->vrm = vid_which_vrm(); |
| 2043 | err = superio_enter(sio_data->sioreg); |
| 2044 | if (err) |
| 2045 | return err; |
| 2046 | |
| 2047 | /* |
| 2048 | * Read VID value |
| 2049 | * We can get the VID input values directly at logical device D 0xe3. |
| 2050 | */ |
| 2051 | superio_select(sio_data->sioreg, NCT6775_LD_VID); |
| 2052 | data->vid = superio_inb(sio_data->sioreg, 0xe3); |
| 2053 | superio_exit(sio_data->sioreg); |
| 2054 | |
| 2055 | err = device_create_file(dev, &dev_attr_cpu0_vid); |
| 2056 | if (err) |
| 2057 | return err; |
| 2058 | |
Guenter Roeck | 1c65dc3 | 2012-12-04 07:56:24 -0800 | [diff] [blame^] | 2059 | err = nct6775_check_fan_inputs(sio_data, data); |
| 2060 | if (err) |
| 2061 | goto exit_remove; |
| 2062 | |
| 2063 | /* Read fan clock dividers immediately */ |
| 2064 | nct6775_init_fan_common(dev, data); |
| 2065 | |
Guenter Roeck | 9de2e2e | 2012-05-20 19:29:48 -0700 | [diff] [blame] | 2066 | for (i = 0; i < data->in_num; i++) { |
| 2067 | if (!(data->have_in & (1 << i))) |
| 2068 | continue; |
| 2069 | err = sysfs_create_group(&dev->kobj, &nct6775_group_in[i]); |
| 2070 | if (err) |
| 2071 | goto exit_remove; |
| 2072 | } |
| 2073 | |
Guenter Roeck | 1c65dc3 | 2012-12-04 07:56:24 -0800 | [diff] [blame^] | 2074 | for (i = 0; i < 5; i++) { |
| 2075 | if (data->has_fan & (1 << i)) { |
| 2076 | err = device_create_file(dev, |
| 2077 | &sda_fan_input[i].dev_attr); |
| 2078 | if (err) |
| 2079 | goto exit_remove; |
| 2080 | err = device_create_file(dev, |
| 2081 | &sda_fan_alarm[i].dev_attr); |
| 2082 | if (err) |
| 2083 | goto exit_remove; |
| 2084 | if (data->kind != nct6776 && |
| 2085 | data->kind != nct6779) { |
| 2086 | err = device_create_file(dev, |
| 2087 | &sda_fan_div[i].dev_attr); |
| 2088 | if (err) |
| 2089 | goto exit_remove; |
| 2090 | } |
| 2091 | if (data->has_fan_min & (1 << i)) { |
| 2092 | err = device_create_file(dev, |
| 2093 | &sda_fan_min[i].dev_attr); |
| 2094 | if (err) |
| 2095 | goto exit_remove; |
| 2096 | } |
| 2097 | } |
| 2098 | } |
| 2099 | |
Guenter Roeck | aa136e5 | 2012-12-04 03:26:05 -0800 | [diff] [blame] | 2100 | for (i = 0; i < NUM_TEMP; i++) { |
| 2101 | if (!(data->have_temp & (1 << i))) |
| 2102 | continue; |
| 2103 | err = device_create_file(dev, &sda_temp_input[i].dev_attr); |
| 2104 | if (err) |
| 2105 | goto exit_remove; |
| 2106 | if (data->temp_label) { |
| 2107 | err = device_create_file(dev, |
| 2108 | &sda_temp_label[i].dev_attr); |
| 2109 | if (err) |
| 2110 | goto exit_remove; |
| 2111 | } |
| 2112 | if (data->reg_temp[1][i]) { |
| 2113 | err = device_create_file(dev, |
| 2114 | &sda_temp_max[i].dev_attr); |
| 2115 | if (err) |
| 2116 | goto exit_remove; |
| 2117 | } |
| 2118 | if (data->reg_temp[2][i]) { |
| 2119 | err = device_create_file(dev, |
| 2120 | &sda_temp_max_hyst[i].dev_attr); |
| 2121 | if (err) |
| 2122 | goto exit_remove; |
| 2123 | } |
| 2124 | if (data->reg_temp[3][i]) { |
| 2125 | err = device_create_file(dev, |
| 2126 | &sda_temp_crit[i].dev_attr); |
| 2127 | if (err) |
| 2128 | goto exit_remove; |
| 2129 | } |
| 2130 | if (!(data->have_temp_fixed & (1 << i))) |
| 2131 | continue; |
| 2132 | err = device_create_file(dev, &sda_temp_type[i].dev_attr); |
| 2133 | if (err) |
| 2134 | goto exit_remove; |
| 2135 | err = device_create_file(dev, &sda_temp_offset[i].dev_attr); |
| 2136 | if (err) |
| 2137 | goto exit_remove; |
| 2138 | if (i >= NUM_TEMP_ALARM || |
| 2139 | data->ALARM_BITS[TEMP_ALARM_BASE + i] < 0) |
| 2140 | continue; |
| 2141 | err = device_create_file(dev, &sda_temp_alarm[i].dev_attr); |
| 2142 | if (err) |
| 2143 | goto exit_remove; |
| 2144 | } |
| 2145 | |
Guenter Roeck | a6bd587 | 2012-12-04 03:13:34 -0800 | [diff] [blame] | 2146 | for (i = 0; i < ARRAY_SIZE(sda_caseopen); i++) { |
| 2147 | if (data->ALARM_BITS[INTRUSION_ALARM_BASE + i] < 0) |
| 2148 | continue; |
| 2149 | err = device_create_file(dev, &sda_caseopen[i].dev_attr); |
| 2150 | if (err) |
| 2151 | goto exit_remove; |
| 2152 | } |
| 2153 | |
Guenter Roeck | 9de2e2e | 2012-05-20 19:29:48 -0700 | [diff] [blame] | 2154 | err = device_create_file(dev, &dev_attr_name); |
| 2155 | if (err) |
| 2156 | goto exit_remove; |
| 2157 | |
| 2158 | data->hwmon_dev = hwmon_device_register(dev); |
| 2159 | if (IS_ERR(data->hwmon_dev)) { |
| 2160 | err = PTR_ERR(data->hwmon_dev); |
| 2161 | goto exit_remove; |
| 2162 | } |
| 2163 | |
| 2164 | return 0; |
| 2165 | |
| 2166 | exit_remove: |
| 2167 | nct6775_device_remove_files(dev); |
| 2168 | return err; |
| 2169 | } |
| 2170 | |
| 2171 | static int nct6775_remove(struct platform_device *pdev) |
| 2172 | { |
| 2173 | struct nct6775_data *data = platform_get_drvdata(pdev); |
| 2174 | |
| 2175 | hwmon_device_unregister(data->hwmon_dev); |
| 2176 | nct6775_device_remove_files(&pdev->dev); |
| 2177 | |
| 2178 | return 0; |
| 2179 | } |
| 2180 | |
| 2181 | static struct platform_driver nct6775_driver = { |
| 2182 | .driver = { |
| 2183 | .owner = THIS_MODULE, |
| 2184 | .name = DRVNAME, |
| 2185 | }, |
| 2186 | .probe = nct6775_probe, |
| 2187 | .remove = nct6775_remove, |
| 2188 | }; |
| 2189 | |
| 2190 | /* nct6775_find() looks for a '627 in the Super-I/O config space */ |
| 2191 | static int __init nct6775_find(int sioaddr, unsigned short *addr, |
| 2192 | struct nct6775_sio_data *sio_data) |
| 2193 | { |
| 2194 | static const char sio_name_NCT6775[] __initconst = "NCT6775F"; |
| 2195 | static const char sio_name_NCT6776[] __initconst = "NCT6776F"; |
| 2196 | static const char sio_name_NCT6779[] __initconst = "NCT6779D"; |
| 2197 | |
| 2198 | u16 val; |
| 2199 | const char *sio_name; |
| 2200 | int err; |
| 2201 | |
| 2202 | err = superio_enter(sioaddr); |
| 2203 | if (err) |
| 2204 | return err; |
| 2205 | |
| 2206 | if (force_id) |
| 2207 | val = force_id; |
| 2208 | else |
| 2209 | val = (superio_inb(sioaddr, SIO_REG_DEVID) << 8) |
| 2210 | | superio_inb(sioaddr, SIO_REG_DEVID + 1); |
| 2211 | switch (val & SIO_ID_MASK) { |
| 2212 | case SIO_NCT6775_ID: |
| 2213 | sio_data->kind = nct6775; |
| 2214 | sio_name = sio_name_NCT6775; |
| 2215 | break; |
| 2216 | case SIO_NCT6776_ID: |
| 2217 | sio_data->kind = nct6776; |
| 2218 | sio_name = sio_name_NCT6776; |
| 2219 | break; |
| 2220 | case SIO_NCT6779_ID: |
| 2221 | sio_data->kind = nct6779; |
| 2222 | sio_name = sio_name_NCT6779; |
| 2223 | break; |
| 2224 | default: |
| 2225 | if (val != 0xffff) |
| 2226 | pr_debug("unsupported chip ID: 0x%04x\n", val); |
| 2227 | superio_exit(sioaddr); |
| 2228 | return -ENODEV; |
| 2229 | } |
| 2230 | |
| 2231 | /* We have a known chip, find the HWM I/O address */ |
| 2232 | superio_select(sioaddr, NCT6775_LD_HWM); |
| 2233 | val = (superio_inb(sioaddr, SIO_REG_ADDR) << 8) |
| 2234 | | superio_inb(sioaddr, SIO_REG_ADDR + 1); |
| 2235 | *addr = val & IOREGION_ALIGNMENT; |
| 2236 | if (*addr == 0) { |
| 2237 | pr_err("Refusing to enable a Super-I/O device with a base I/O port 0\n"); |
| 2238 | superio_exit(sioaddr); |
| 2239 | return -ENODEV; |
| 2240 | } |
| 2241 | |
| 2242 | /* Activate logical device if needed */ |
| 2243 | val = superio_inb(sioaddr, SIO_REG_ENABLE); |
| 2244 | if (!(val & 0x01)) { |
| 2245 | pr_warn("Forcibly enabling Super-I/O. Sensor is probably unusable.\n"); |
| 2246 | superio_outb(sioaddr, SIO_REG_ENABLE, val | 0x01); |
| 2247 | } |
| 2248 | |
| 2249 | superio_exit(sioaddr); |
| 2250 | pr_info("Found %s chip at %#x\n", sio_name, *addr); |
| 2251 | sio_data->sioreg = sioaddr; |
| 2252 | |
| 2253 | return 0; |
| 2254 | } |
| 2255 | |
| 2256 | /* |
| 2257 | * when Super-I/O functions move to a separate file, the Super-I/O |
| 2258 | * bus will manage the lifetime of the device and this module will only keep |
| 2259 | * track of the nct6775 driver. But since we platform_device_alloc(), we |
| 2260 | * must keep track of the device |
| 2261 | */ |
| 2262 | static struct platform_device *pdev; |
| 2263 | |
| 2264 | static int __init sensors_nct6775_init(void) |
| 2265 | { |
| 2266 | int err; |
| 2267 | unsigned short address; |
| 2268 | struct resource res; |
| 2269 | struct nct6775_sio_data sio_data; |
| 2270 | |
| 2271 | /* |
| 2272 | * initialize sio_data->kind and sio_data->sioreg. |
| 2273 | * |
| 2274 | * when Super-I/O functions move to a separate file, the Super-I/O |
| 2275 | * driver will probe 0x2e and 0x4e and auto-detect the presence of a |
| 2276 | * nct6775 hardware monitor, and call probe() |
| 2277 | */ |
| 2278 | if (nct6775_find(0x2e, &address, &sio_data) && |
| 2279 | nct6775_find(0x4e, &address, &sio_data)) |
| 2280 | return -ENODEV; |
| 2281 | |
| 2282 | err = platform_driver_register(&nct6775_driver); |
| 2283 | if (err) |
| 2284 | goto exit; |
| 2285 | |
| 2286 | pdev = platform_device_alloc(DRVNAME, address); |
| 2287 | if (!pdev) { |
| 2288 | err = -ENOMEM; |
| 2289 | pr_err("Device allocation failed\n"); |
| 2290 | goto exit_unregister; |
| 2291 | } |
| 2292 | |
| 2293 | err = platform_device_add_data(pdev, &sio_data, |
| 2294 | sizeof(struct nct6775_sio_data)); |
| 2295 | if (err) { |
| 2296 | pr_err("Platform data allocation failed\n"); |
| 2297 | goto exit_device_put; |
| 2298 | } |
| 2299 | |
| 2300 | memset(&res, 0, sizeof(res)); |
| 2301 | res.name = DRVNAME; |
| 2302 | res.start = address + IOREGION_OFFSET; |
| 2303 | res.end = address + IOREGION_OFFSET + IOREGION_LENGTH - 1; |
| 2304 | res.flags = IORESOURCE_IO; |
| 2305 | |
| 2306 | err = acpi_check_resource_conflict(&res); |
| 2307 | if (err) |
| 2308 | goto exit_device_put; |
| 2309 | |
| 2310 | err = platform_device_add_resources(pdev, &res, 1); |
| 2311 | if (err) { |
| 2312 | pr_err("Device resource addition failed (%d)\n", err); |
| 2313 | goto exit_device_put; |
| 2314 | } |
| 2315 | |
| 2316 | /* platform_device_add calls probe() */ |
| 2317 | err = platform_device_add(pdev); |
| 2318 | if (err) { |
| 2319 | pr_err("Device addition failed (%d)\n", err); |
| 2320 | goto exit_device_put; |
| 2321 | } |
| 2322 | |
| 2323 | return 0; |
| 2324 | |
| 2325 | exit_device_put: |
| 2326 | platform_device_put(pdev); |
| 2327 | exit_unregister: |
| 2328 | platform_driver_unregister(&nct6775_driver); |
| 2329 | exit: |
| 2330 | return err; |
| 2331 | } |
| 2332 | |
| 2333 | static void __exit sensors_nct6775_exit(void) |
| 2334 | { |
| 2335 | platform_device_unregister(pdev); |
| 2336 | platform_driver_unregister(&nct6775_driver); |
| 2337 | } |
| 2338 | |
| 2339 | MODULE_AUTHOR("Guenter Roeck <linux@roeck-us.net>"); |
| 2340 | MODULE_DESCRIPTION("NCT6775F/NCT6776F/NCT6779D driver"); |
| 2341 | MODULE_LICENSE("GPL"); |
| 2342 | |
| 2343 | module_init(sensors_nct6775_init); |
| 2344 | module_exit(sensors_nct6775_exit); |