Jean Delvare | 08e7e27 | 2005-04-25 22:43:25 +0200 | [diff] [blame] | 1 | /* |
| 2 | w83627ehf - Driver for the hardware monitoring functionality of |
| 3 | the Winbond W83627EHF Super-I/O chip |
| 4 | Copyright (C) 2005 Jean Delvare <khali@linux-fr.org> |
| 5 | |
| 6 | Shamelessly ripped from the w83627hf driver |
| 7 | Copyright (C) 2003 Mark Studebaker |
| 8 | |
| 9 | Thanks to Leon Moonen, Steve Cliffe and Grant Coady for their help |
| 10 | in testing and debugging this driver. |
| 11 | |
Jean Delvare | 8dd2d2c | 2005-07-27 21:33:15 +0200 | [diff] [blame] | 12 | This driver also supports the W83627EHG, which is the lead-free |
| 13 | version of the W83627EHF. |
| 14 | |
Jean Delvare | 08e7e27 | 2005-04-25 22:43:25 +0200 | [diff] [blame] | 15 | This program is free software; you can redistribute it and/or modify |
| 16 | it under the terms of the GNU General Public License as published by |
| 17 | the Free Software Foundation; either version 2 of the License, or |
| 18 | (at your option) any later version. |
| 19 | |
| 20 | This program is distributed in the hope that it will be useful, |
| 21 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 22 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 23 | GNU General Public License for more details. |
| 24 | |
| 25 | You should have received a copy of the GNU General Public License |
| 26 | along with this program; if not, write to the Free Software |
| 27 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 28 | |
| 29 | |
| 30 | Supports the following chips: |
| 31 | |
| 32 | Chip #vin #fan #pwm #temp chip_id man_id |
Rudolf Marek | cf0676f | 2006-03-23 16:25:22 +0100 | [diff] [blame^] | 33 | w83627ehf 10 5 - 3 0x88 0x5ca3 |
Jean Delvare | 08e7e27 | 2005-04-25 22:43:25 +0200 | [diff] [blame] | 34 | */ |
| 35 | |
| 36 | #include <linux/module.h> |
| 37 | #include <linux/init.h> |
| 38 | #include <linux/slab.h> |
| 39 | #include <linux/i2c.h> |
Jean Delvare | fde0950 | 2005-07-19 23:51:07 +0200 | [diff] [blame] | 40 | #include <linux/i2c-isa.h> |
Mark M. Hoffman | 943b083 | 2005-07-15 21:39:18 -0400 | [diff] [blame] | 41 | #include <linux/hwmon.h> |
Yuan Mu | 412fec8 | 2006-02-05 23:24:16 +0100 | [diff] [blame] | 42 | #include <linux/hwmon-sysfs.h> |
Mark M. Hoffman | 943b083 | 2005-07-15 21:39:18 -0400 | [diff] [blame] | 43 | #include <linux/err.h> |
Ingo Molnar | 9a61bf6 | 2006-01-18 23:19:26 +0100 | [diff] [blame] | 44 | #include <linux/mutex.h> |
Jean Delvare | 08e7e27 | 2005-04-25 22:43:25 +0200 | [diff] [blame] | 45 | #include <asm/io.h> |
| 46 | #include "lm75.h" |
| 47 | |
Jean Delvare | 2d8672c | 2005-07-19 23:56:35 +0200 | [diff] [blame] | 48 | /* The actual ISA address is read from Super-I/O configuration space */ |
| 49 | static unsigned short address; |
Jean Delvare | 08e7e27 | 2005-04-25 22:43:25 +0200 | [diff] [blame] | 50 | |
| 51 | /* |
| 52 | * Super-I/O constants and functions |
| 53 | */ |
| 54 | |
| 55 | static int REG; /* The register to read/write */ |
| 56 | static int VAL; /* The value to read/write */ |
| 57 | |
| 58 | #define W83627EHF_LD_HWM 0x0b |
| 59 | |
| 60 | #define SIO_REG_LDSEL 0x07 /* Logical device select */ |
| 61 | #define SIO_REG_DEVID 0x20 /* Device ID (2 bytes) */ |
| 62 | #define SIO_REG_ENABLE 0x30 /* Logical device enable */ |
| 63 | #define SIO_REG_ADDR 0x60 /* Logical device address (2 bytes) */ |
| 64 | |
| 65 | #define SIO_W83627EHF_ID 0x8840 |
| 66 | #define SIO_ID_MASK 0xFFC0 |
| 67 | |
| 68 | static inline void |
| 69 | superio_outb(int reg, int val) |
| 70 | { |
| 71 | outb(reg, REG); |
| 72 | outb(val, VAL); |
| 73 | } |
| 74 | |
| 75 | static inline int |
| 76 | superio_inb(int reg) |
| 77 | { |
| 78 | outb(reg, REG); |
| 79 | return inb(VAL); |
| 80 | } |
| 81 | |
| 82 | static inline void |
| 83 | superio_select(int ld) |
| 84 | { |
| 85 | outb(SIO_REG_LDSEL, REG); |
| 86 | outb(ld, VAL); |
| 87 | } |
| 88 | |
| 89 | static inline void |
| 90 | superio_enter(void) |
| 91 | { |
| 92 | outb(0x87, REG); |
| 93 | outb(0x87, REG); |
| 94 | } |
| 95 | |
| 96 | static inline void |
| 97 | superio_exit(void) |
| 98 | { |
| 99 | outb(0x02, REG); |
| 100 | outb(0x02, VAL); |
| 101 | } |
| 102 | |
| 103 | /* |
| 104 | * ISA constants |
| 105 | */ |
| 106 | |
Petr Vandrovec | ada0c2f | 2005-10-07 23:11:03 +0200 | [diff] [blame] | 107 | #define REGION_ALIGNMENT ~7 |
| 108 | #define REGION_OFFSET 5 |
| 109 | #define REGION_LENGTH 2 |
Jean Delvare | 08e7e27 | 2005-04-25 22:43:25 +0200 | [diff] [blame] | 110 | #define ADDR_REG_OFFSET 5 |
| 111 | #define DATA_REG_OFFSET 6 |
| 112 | |
| 113 | #define W83627EHF_REG_BANK 0x4E |
| 114 | #define W83627EHF_REG_CONFIG 0x40 |
| 115 | #define W83627EHF_REG_CHIP_ID 0x49 |
| 116 | #define W83627EHF_REG_MAN_ID 0x4F |
| 117 | |
| 118 | static const u16 W83627EHF_REG_FAN[] = { 0x28, 0x29, 0x2a, 0x3f, 0x553 }; |
| 119 | static const u16 W83627EHF_REG_FAN_MIN[] = { 0x3b, 0x3c, 0x3d, 0x3e, 0x55c }; |
| 120 | |
Rudolf Marek | cf0676f | 2006-03-23 16:25:22 +0100 | [diff] [blame^] | 121 | /* The W83627EHF registers for nr=7,8,9 are in bank 5 */ |
| 122 | #define W83627EHF_REG_IN_MAX(nr) ((nr < 7) ? (0x2b + (nr) * 2) : \ |
| 123 | (0x554 + (((nr) - 7) * 2))) |
| 124 | #define W83627EHF_REG_IN_MIN(nr) ((nr < 7) ? (0x2c + (nr) * 2) : \ |
| 125 | (0x555 + (((nr) - 7) * 2))) |
| 126 | #define W83627EHF_REG_IN(nr) ((nr < 7) ? (0x20 + (nr)) : \ |
| 127 | (0x550 + (nr) - 7)) |
| 128 | |
Jean Delvare | 08e7e27 | 2005-04-25 22:43:25 +0200 | [diff] [blame] | 129 | #define W83627EHF_REG_TEMP1 0x27 |
| 130 | #define W83627EHF_REG_TEMP1_HYST 0x3a |
| 131 | #define W83627EHF_REG_TEMP1_OVER 0x39 |
| 132 | static const u16 W83627EHF_REG_TEMP[] = { 0x150, 0x250 }; |
| 133 | static const u16 W83627EHF_REG_TEMP_HYST[] = { 0x153, 0x253 }; |
| 134 | static const u16 W83627EHF_REG_TEMP_OVER[] = { 0x155, 0x255 }; |
| 135 | static const u16 W83627EHF_REG_TEMP_CONFIG[] = { 0x152, 0x252 }; |
| 136 | |
| 137 | /* Fan clock dividers are spread over the following five registers */ |
| 138 | #define W83627EHF_REG_FANDIV1 0x47 |
| 139 | #define W83627EHF_REG_FANDIV2 0x4B |
| 140 | #define W83627EHF_REG_VBAT 0x5D |
| 141 | #define W83627EHF_REG_DIODE 0x59 |
| 142 | #define W83627EHF_REG_SMI_OVT 0x4C |
| 143 | |
| 144 | /* |
| 145 | * Conversions |
| 146 | */ |
| 147 | |
| 148 | static inline unsigned int |
| 149 | fan_from_reg(u8 reg, unsigned int div) |
| 150 | { |
| 151 | if (reg == 0 || reg == 255) |
| 152 | return 0; |
| 153 | return 1350000U / (reg * div); |
| 154 | } |
| 155 | |
| 156 | static inline unsigned int |
| 157 | div_from_reg(u8 reg) |
| 158 | { |
| 159 | return 1 << reg; |
| 160 | } |
| 161 | |
| 162 | static inline int |
| 163 | temp1_from_reg(s8 reg) |
| 164 | { |
| 165 | return reg * 1000; |
| 166 | } |
| 167 | |
| 168 | static inline s8 |
| 169 | temp1_to_reg(int temp) |
| 170 | { |
| 171 | if (temp <= -128000) |
| 172 | return -128; |
| 173 | if (temp >= 127000) |
| 174 | return 127; |
| 175 | if (temp < 0) |
| 176 | return (temp - 500) / 1000; |
| 177 | return (temp + 500) / 1000; |
| 178 | } |
| 179 | |
Rudolf Marek | cf0676f | 2006-03-23 16:25:22 +0100 | [diff] [blame^] | 180 | /* Some of analog inputs have internal scaling (2x), 8mV is ADC LSB */ |
| 181 | |
| 182 | static u8 scale_in[10] = { 8, 8, 16, 16, 8, 8, 8, 16, 16, 8 }; |
| 183 | |
| 184 | static inline long in_from_reg(u8 reg, u8 nr) |
| 185 | { |
| 186 | return reg * scale_in[nr]; |
| 187 | } |
| 188 | |
| 189 | static inline u8 in_to_reg(u32 val, u8 nr) |
| 190 | { |
| 191 | return SENSORS_LIMIT(((val + (scale_in[nr] / 2)) / scale_in[nr]), 0, 255); |
| 192 | } |
| 193 | |
Jean Delvare | 08e7e27 | 2005-04-25 22:43:25 +0200 | [diff] [blame] | 194 | /* |
| 195 | * Data structures and manipulation thereof |
| 196 | */ |
| 197 | |
| 198 | struct w83627ehf_data { |
| 199 | struct i2c_client client; |
Mark M. Hoffman | 943b083 | 2005-07-15 21:39:18 -0400 | [diff] [blame] | 200 | struct class_device *class_dev; |
Ingo Molnar | 9a61bf6 | 2006-01-18 23:19:26 +0100 | [diff] [blame] | 201 | struct mutex lock; |
Jean Delvare | 08e7e27 | 2005-04-25 22:43:25 +0200 | [diff] [blame] | 202 | |
Ingo Molnar | 9a61bf6 | 2006-01-18 23:19:26 +0100 | [diff] [blame] | 203 | struct mutex update_lock; |
Jean Delvare | 08e7e27 | 2005-04-25 22:43:25 +0200 | [diff] [blame] | 204 | char valid; /* !=0 if following fields are valid */ |
| 205 | unsigned long last_updated; /* In jiffies */ |
| 206 | |
| 207 | /* Register values */ |
Rudolf Marek | cf0676f | 2006-03-23 16:25:22 +0100 | [diff] [blame^] | 208 | u8 in[10]; /* Register value */ |
| 209 | u8 in_max[10]; /* Register value */ |
| 210 | u8 in_min[10]; /* Register value */ |
Jean Delvare | 08e7e27 | 2005-04-25 22:43:25 +0200 | [diff] [blame] | 211 | u8 fan[5]; |
| 212 | u8 fan_min[5]; |
| 213 | u8 fan_div[5]; |
| 214 | u8 has_fan; /* some fan inputs can be disabled */ |
| 215 | s8 temp1; |
| 216 | s8 temp1_max; |
| 217 | s8 temp1_max_hyst; |
| 218 | s16 temp[2]; |
| 219 | s16 temp_max[2]; |
| 220 | s16 temp_max_hyst[2]; |
| 221 | }; |
| 222 | |
| 223 | static inline int is_word_sized(u16 reg) |
| 224 | { |
| 225 | return (((reg & 0xff00) == 0x100 |
| 226 | || (reg & 0xff00) == 0x200) |
| 227 | && ((reg & 0x00ff) == 0x50 |
| 228 | || (reg & 0x00ff) == 0x53 |
| 229 | || (reg & 0x00ff) == 0x55)); |
| 230 | } |
| 231 | |
| 232 | /* We assume that the default bank is 0, thus the following two functions do |
| 233 | nothing for registers which live in bank 0. For others, they respectively |
| 234 | set the bank register to the correct value (before the register is |
| 235 | accessed), and back to 0 (afterwards). */ |
| 236 | static inline void w83627ehf_set_bank(struct i2c_client *client, u16 reg) |
| 237 | { |
| 238 | if (reg & 0xff00) { |
| 239 | outb_p(W83627EHF_REG_BANK, client->addr + ADDR_REG_OFFSET); |
| 240 | outb_p(reg >> 8, client->addr + DATA_REG_OFFSET); |
| 241 | } |
| 242 | } |
| 243 | |
| 244 | static inline void w83627ehf_reset_bank(struct i2c_client *client, u16 reg) |
| 245 | { |
| 246 | if (reg & 0xff00) { |
| 247 | outb_p(W83627EHF_REG_BANK, client->addr + ADDR_REG_OFFSET); |
| 248 | outb_p(0, client->addr + DATA_REG_OFFSET); |
| 249 | } |
| 250 | } |
| 251 | |
| 252 | static u16 w83627ehf_read_value(struct i2c_client *client, u16 reg) |
| 253 | { |
| 254 | struct w83627ehf_data *data = i2c_get_clientdata(client); |
| 255 | int res, word_sized = is_word_sized(reg); |
| 256 | |
Ingo Molnar | 9a61bf6 | 2006-01-18 23:19:26 +0100 | [diff] [blame] | 257 | mutex_lock(&data->lock); |
Jean Delvare | 08e7e27 | 2005-04-25 22:43:25 +0200 | [diff] [blame] | 258 | |
| 259 | w83627ehf_set_bank(client, reg); |
| 260 | outb_p(reg & 0xff, client->addr + ADDR_REG_OFFSET); |
| 261 | res = inb_p(client->addr + DATA_REG_OFFSET); |
| 262 | if (word_sized) { |
| 263 | outb_p((reg & 0xff) + 1, |
| 264 | client->addr + ADDR_REG_OFFSET); |
| 265 | res = (res << 8) + inb_p(client->addr + DATA_REG_OFFSET); |
| 266 | } |
| 267 | w83627ehf_reset_bank(client, reg); |
| 268 | |
Ingo Molnar | 9a61bf6 | 2006-01-18 23:19:26 +0100 | [diff] [blame] | 269 | mutex_unlock(&data->lock); |
Jean Delvare | 08e7e27 | 2005-04-25 22:43:25 +0200 | [diff] [blame] | 270 | |
| 271 | return res; |
| 272 | } |
| 273 | |
| 274 | static int w83627ehf_write_value(struct i2c_client *client, u16 reg, u16 value) |
| 275 | { |
| 276 | struct w83627ehf_data *data = i2c_get_clientdata(client); |
| 277 | int word_sized = is_word_sized(reg); |
| 278 | |
Ingo Molnar | 9a61bf6 | 2006-01-18 23:19:26 +0100 | [diff] [blame] | 279 | mutex_lock(&data->lock); |
Jean Delvare | 08e7e27 | 2005-04-25 22:43:25 +0200 | [diff] [blame] | 280 | |
| 281 | w83627ehf_set_bank(client, reg); |
| 282 | outb_p(reg & 0xff, client->addr + ADDR_REG_OFFSET); |
| 283 | if (word_sized) { |
| 284 | outb_p(value >> 8, client->addr + DATA_REG_OFFSET); |
| 285 | outb_p((reg & 0xff) + 1, |
| 286 | client->addr + ADDR_REG_OFFSET); |
| 287 | } |
| 288 | outb_p(value & 0xff, client->addr + DATA_REG_OFFSET); |
| 289 | w83627ehf_reset_bank(client, reg); |
| 290 | |
Ingo Molnar | 9a61bf6 | 2006-01-18 23:19:26 +0100 | [diff] [blame] | 291 | mutex_unlock(&data->lock); |
Jean Delvare | 08e7e27 | 2005-04-25 22:43:25 +0200 | [diff] [blame] | 292 | return 0; |
| 293 | } |
| 294 | |
| 295 | /* This function assumes that the caller holds data->update_lock */ |
| 296 | static void w83627ehf_write_fan_div(struct i2c_client *client, int nr) |
| 297 | { |
| 298 | struct w83627ehf_data *data = i2c_get_clientdata(client); |
| 299 | u8 reg; |
| 300 | |
| 301 | switch (nr) { |
| 302 | case 0: |
| 303 | reg = (w83627ehf_read_value(client, W83627EHF_REG_FANDIV1) & 0xcf) |
| 304 | | ((data->fan_div[0] & 0x03) << 4); |
| 305 | w83627ehf_write_value(client, W83627EHF_REG_FANDIV1, reg); |
| 306 | reg = (w83627ehf_read_value(client, W83627EHF_REG_VBAT) & 0xdf) |
| 307 | | ((data->fan_div[0] & 0x04) << 3); |
| 308 | w83627ehf_write_value(client, W83627EHF_REG_VBAT, reg); |
| 309 | break; |
| 310 | case 1: |
| 311 | reg = (w83627ehf_read_value(client, W83627EHF_REG_FANDIV1) & 0x3f) |
| 312 | | ((data->fan_div[1] & 0x03) << 6); |
| 313 | w83627ehf_write_value(client, W83627EHF_REG_FANDIV1, reg); |
| 314 | reg = (w83627ehf_read_value(client, W83627EHF_REG_VBAT) & 0xbf) |
| 315 | | ((data->fan_div[1] & 0x04) << 4); |
| 316 | w83627ehf_write_value(client, W83627EHF_REG_VBAT, reg); |
| 317 | break; |
| 318 | case 2: |
| 319 | reg = (w83627ehf_read_value(client, W83627EHF_REG_FANDIV2) & 0x3f) |
| 320 | | ((data->fan_div[2] & 0x03) << 6); |
| 321 | w83627ehf_write_value(client, W83627EHF_REG_FANDIV2, reg); |
| 322 | reg = (w83627ehf_read_value(client, W83627EHF_REG_VBAT) & 0x7f) |
| 323 | | ((data->fan_div[2] & 0x04) << 5); |
| 324 | w83627ehf_write_value(client, W83627EHF_REG_VBAT, reg); |
| 325 | break; |
| 326 | case 3: |
| 327 | reg = (w83627ehf_read_value(client, W83627EHF_REG_DIODE) & 0xfc) |
| 328 | | (data->fan_div[3] & 0x03); |
| 329 | w83627ehf_write_value(client, W83627EHF_REG_DIODE, reg); |
| 330 | reg = (w83627ehf_read_value(client, W83627EHF_REG_SMI_OVT) & 0x7f) |
| 331 | | ((data->fan_div[3] & 0x04) << 5); |
| 332 | w83627ehf_write_value(client, W83627EHF_REG_SMI_OVT, reg); |
| 333 | break; |
| 334 | case 4: |
| 335 | reg = (w83627ehf_read_value(client, W83627EHF_REG_DIODE) & 0x73) |
| 336 | | ((data->fan_div[4] & 0x03) << 3) |
| 337 | | ((data->fan_div[4] & 0x04) << 5); |
| 338 | w83627ehf_write_value(client, W83627EHF_REG_DIODE, reg); |
| 339 | break; |
| 340 | } |
| 341 | } |
| 342 | |
| 343 | static struct w83627ehf_data *w83627ehf_update_device(struct device *dev) |
| 344 | { |
| 345 | struct i2c_client *client = to_i2c_client(dev); |
| 346 | struct w83627ehf_data *data = i2c_get_clientdata(client); |
| 347 | int i; |
| 348 | |
Ingo Molnar | 9a61bf6 | 2006-01-18 23:19:26 +0100 | [diff] [blame] | 349 | mutex_lock(&data->update_lock); |
Jean Delvare | 08e7e27 | 2005-04-25 22:43:25 +0200 | [diff] [blame] | 350 | |
| 351 | if (time_after(jiffies, data->last_updated + HZ) |
| 352 | || !data->valid) { |
| 353 | /* Fan clock dividers */ |
| 354 | i = w83627ehf_read_value(client, W83627EHF_REG_FANDIV1); |
| 355 | data->fan_div[0] = (i >> 4) & 0x03; |
| 356 | data->fan_div[1] = (i >> 6) & 0x03; |
| 357 | i = w83627ehf_read_value(client, W83627EHF_REG_FANDIV2); |
| 358 | data->fan_div[2] = (i >> 6) & 0x03; |
| 359 | i = w83627ehf_read_value(client, W83627EHF_REG_VBAT); |
| 360 | data->fan_div[0] |= (i >> 3) & 0x04; |
| 361 | data->fan_div[1] |= (i >> 4) & 0x04; |
| 362 | data->fan_div[2] |= (i >> 5) & 0x04; |
| 363 | if (data->has_fan & ((1 << 3) | (1 << 4))) { |
| 364 | i = w83627ehf_read_value(client, W83627EHF_REG_DIODE); |
| 365 | data->fan_div[3] = i & 0x03; |
| 366 | data->fan_div[4] = ((i >> 2) & 0x03) |
| 367 | | ((i >> 5) & 0x04); |
| 368 | } |
| 369 | if (data->has_fan & (1 << 3)) { |
| 370 | i = w83627ehf_read_value(client, W83627EHF_REG_SMI_OVT); |
| 371 | data->fan_div[3] |= (i >> 5) & 0x04; |
| 372 | } |
| 373 | |
Rudolf Marek | cf0676f | 2006-03-23 16:25:22 +0100 | [diff] [blame^] | 374 | /* Measured voltages and limits */ |
| 375 | for (i = 0; i < 10; i++) { |
| 376 | data->in[i] = w83627ehf_read_value(client, |
| 377 | W83627EHF_REG_IN(i)); |
| 378 | data->in_min[i] = w83627ehf_read_value(client, |
| 379 | W83627EHF_REG_IN_MIN(i)); |
| 380 | data->in_max[i] = w83627ehf_read_value(client, |
| 381 | W83627EHF_REG_IN_MAX(i)); |
| 382 | } |
| 383 | |
Jean Delvare | 08e7e27 | 2005-04-25 22:43:25 +0200 | [diff] [blame] | 384 | /* Measured fan speeds and limits */ |
| 385 | for (i = 0; i < 5; i++) { |
| 386 | if (!(data->has_fan & (1 << i))) |
| 387 | continue; |
| 388 | |
| 389 | data->fan[i] = w83627ehf_read_value(client, |
| 390 | W83627EHF_REG_FAN[i]); |
| 391 | data->fan_min[i] = w83627ehf_read_value(client, |
| 392 | W83627EHF_REG_FAN_MIN[i]); |
| 393 | |
| 394 | /* If we failed to measure the fan speed and clock |
| 395 | divider can be increased, let's try that for next |
| 396 | time */ |
| 397 | if (data->fan[i] == 0xff |
| 398 | && data->fan_div[i] < 0x07) { |
| 399 | dev_dbg(&client->dev, "Increasing fan %d " |
| 400 | "clock divider from %u to %u\n", |
| 401 | i, div_from_reg(data->fan_div[i]), |
| 402 | div_from_reg(data->fan_div[i] + 1)); |
| 403 | data->fan_div[i]++; |
| 404 | w83627ehf_write_fan_div(client, i); |
| 405 | /* Preserve min limit if possible */ |
| 406 | if (data->fan_min[i] >= 2 |
| 407 | && data->fan_min[i] != 255) |
| 408 | w83627ehf_write_value(client, |
| 409 | W83627EHF_REG_FAN_MIN[i], |
| 410 | (data->fan_min[i] /= 2)); |
| 411 | } |
| 412 | } |
| 413 | |
| 414 | /* Measured temperatures and limits */ |
| 415 | data->temp1 = w83627ehf_read_value(client, |
| 416 | W83627EHF_REG_TEMP1); |
| 417 | data->temp1_max = w83627ehf_read_value(client, |
| 418 | W83627EHF_REG_TEMP1_OVER); |
| 419 | data->temp1_max_hyst = w83627ehf_read_value(client, |
| 420 | W83627EHF_REG_TEMP1_HYST); |
| 421 | for (i = 0; i < 2; i++) { |
| 422 | data->temp[i] = w83627ehf_read_value(client, |
| 423 | W83627EHF_REG_TEMP[i]); |
| 424 | data->temp_max[i] = w83627ehf_read_value(client, |
| 425 | W83627EHF_REG_TEMP_OVER[i]); |
| 426 | data->temp_max_hyst[i] = w83627ehf_read_value(client, |
| 427 | W83627EHF_REG_TEMP_HYST[i]); |
| 428 | } |
| 429 | |
| 430 | data->last_updated = jiffies; |
| 431 | data->valid = 1; |
| 432 | } |
| 433 | |
Ingo Molnar | 9a61bf6 | 2006-01-18 23:19:26 +0100 | [diff] [blame] | 434 | mutex_unlock(&data->update_lock); |
Jean Delvare | 08e7e27 | 2005-04-25 22:43:25 +0200 | [diff] [blame] | 435 | return data; |
| 436 | } |
| 437 | |
| 438 | /* |
| 439 | * Sysfs callback functions |
| 440 | */ |
Rudolf Marek | cf0676f | 2006-03-23 16:25:22 +0100 | [diff] [blame^] | 441 | #define show_in_reg(reg) \ |
| 442 | static ssize_t \ |
| 443 | show_##reg(struct device *dev, struct device_attribute *attr, \ |
| 444 | char *buf) \ |
| 445 | { \ |
| 446 | struct w83627ehf_data *data = w83627ehf_update_device(dev); \ |
| 447 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \ |
| 448 | int nr = sensor_attr->index; \ |
| 449 | return sprintf(buf, "%ld\n", in_from_reg(data->reg[nr], nr)); \ |
| 450 | } |
| 451 | show_in_reg(in) |
| 452 | show_in_reg(in_min) |
| 453 | show_in_reg(in_max) |
| 454 | |
| 455 | #define store_in_reg(REG, reg) \ |
| 456 | static ssize_t \ |
| 457 | store_in_##reg (struct device *dev, struct device_attribute *attr, \ |
| 458 | const char *buf, size_t count) \ |
| 459 | { \ |
| 460 | struct i2c_client *client = to_i2c_client(dev); \ |
| 461 | struct w83627ehf_data *data = i2c_get_clientdata(client); \ |
| 462 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \ |
| 463 | int nr = sensor_attr->index; \ |
| 464 | u32 val = simple_strtoul(buf, NULL, 10); \ |
| 465 | \ |
| 466 | mutex_lock(&data->update_lock); \ |
| 467 | data->in_##reg[nr] = in_to_reg(val, nr); \ |
| 468 | w83627ehf_write_value(client, W83627EHF_REG_IN_##REG(nr), \ |
| 469 | data->in_##reg[nr]); \ |
| 470 | mutex_unlock(&data->update_lock); \ |
| 471 | return count; \ |
| 472 | } |
| 473 | |
| 474 | store_in_reg(MIN, min) |
| 475 | store_in_reg(MAX, max) |
| 476 | |
| 477 | static struct sensor_device_attribute sda_in_input[] = { |
| 478 | SENSOR_ATTR(in0_input, S_IRUGO, show_in, NULL, 0), |
| 479 | SENSOR_ATTR(in1_input, S_IRUGO, show_in, NULL, 1), |
| 480 | SENSOR_ATTR(in2_input, S_IRUGO, show_in, NULL, 2), |
| 481 | SENSOR_ATTR(in3_input, S_IRUGO, show_in, NULL, 3), |
| 482 | SENSOR_ATTR(in4_input, S_IRUGO, show_in, NULL, 4), |
| 483 | SENSOR_ATTR(in5_input, S_IRUGO, show_in, NULL, 5), |
| 484 | SENSOR_ATTR(in6_input, S_IRUGO, show_in, NULL, 6), |
| 485 | SENSOR_ATTR(in7_input, S_IRUGO, show_in, NULL, 7), |
| 486 | SENSOR_ATTR(in8_input, S_IRUGO, show_in, NULL, 8), |
| 487 | SENSOR_ATTR(in9_input, S_IRUGO, show_in, NULL, 9), |
| 488 | }; |
| 489 | |
| 490 | static struct sensor_device_attribute sda_in_min[] = { |
| 491 | SENSOR_ATTR(in0_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 0), |
| 492 | SENSOR_ATTR(in1_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 1), |
| 493 | SENSOR_ATTR(in2_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 2), |
| 494 | SENSOR_ATTR(in3_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 3), |
| 495 | SENSOR_ATTR(in4_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 4), |
| 496 | SENSOR_ATTR(in5_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 5), |
| 497 | SENSOR_ATTR(in6_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 6), |
| 498 | SENSOR_ATTR(in7_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 7), |
| 499 | SENSOR_ATTR(in8_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 8), |
| 500 | SENSOR_ATTR(in9_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 9), |
| 501 | }; |
| 502 | |
| 503 | static struct sensor_device_attribute sda_in_max[] = { |
| 504 | SENSOR_ATTR(in0_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 0), |
| 505 | SENSOR_ATTR(in1_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 1), |
| 506 | SENSOR_ATTR(in2_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 2), |
| 507 | SENSOR_ATTR(in3_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 3), |
| 508 | SENSOR_ATTR(in4_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 4), |
| 509 | SENSOR_ATTR(in5_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 5), |
| 510 | SENSOR_ATTR(in6_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 6), |
| 511 | SENSOR_ATTR(in7_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 7), |
| 512 | SENSOR_ATTR(in8_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 8), |
| 513 | SENSOR_ATTR(in9_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 9), |
| 514 | }; |
| 515 | |
| 516 | static void device_create_file_in(struct device *dev, int i) |
| 517 | { |
| 518 | device_create_file(dev, &sda_in_input[i].dev_attr); |
| 519 | device_create_file(dev, &sda_in_min[i].dev_attr); |
| 520 | device_create_file(dev, &sda_in_max[i].dev_attr); |
| 521 | } |
Jean Delvare | 08e7e27 | 2005-04-25 22:43:25 +0200 | [diff] [blame] | 522 | |
| 523 | #define show_fan_reg(reg) \ |
| 524 | static ssize_t \ |
Yuan Mu | 412fec8 | 2006-02-05 23:24:16 +0100 | [diff] [blame] | 525 | show_##reg(struct device *dev, struct device_attribute *attr, \ |
| 526 | char *buf) \ |
Jean Delvare | 08e7e27 | 2005-04-25 22:43:25 +0200 | [diff] [blame] | 527 | { \ |
| 528 | struct w83627ehf_data *data = w83627ehf_update_device(dev); \ |
Yuan Mu | 412fec8 | 2006-02-05 23:24:16 +0100 | [diff] [blame] | 529 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \ |
| 530 | int nr = sensor_attr->index; \ |
Jean Delvare | 08e7e27 | 2005-04-25 22:43:25 +0200 | [diff] [blame] | 531 | return sprintf(buf, "%d\n", \ |
| 532 | fan_from_reg(data->reg[nr], \ |
| 533 | div_from_reg(data->fan_div[nr]))); \ |
| 534 | } |
| 535 | show_fan_reg(fan); |
| 536 | show_fan_reg(fan_min); |
| 537 | |
| 538 | static ssize_t |
Yuan Mu | 412fec8 | 2006-02-05 23:24:16 +0100 | [diff] [blame] | 539 | show_fan_div(struct device *dev, struct device_attribute *attr, |
| 540 | char *buf) |
Jean Delvare | 08e7e27 | 2005-04-25 22:43:25 +0200 | [diff] [blame] | 541 | { |
| 542 | struct w83627ehf_data *data = w83627ehf_update_device(dev); |
Yuan Mu | 412fec8 | 2006-02-05 23:24:16 +0100 | [diff] [blame] | 543 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
| 544 | int nr = sensor_attr->index; |
| 545 | return sprintf(buf, "%u\n", div_from_reg(data->fan_div[nr])); |
Jean Delvare | 08e7e27 | 2005-04-25 22:43:25 +0200 | [diff] [blame] | 546 | } |
| 547 | |
| 548 | static ssize_t |
Yuan Mu | 412fec8 | 2006-02-05 23:24:16 +0100 | [diff] [blame] | 549 | store_fan_min(struct device *dev, struct device_attribute *attr, |
| 550 | const char *buf, size_t count) |
Jean Delvare | 08e7e27 | 2005-04-25 22:43:25 +0200 | [diff] [blame] | 551 | { |
| 552 | struct i2c_client *client = to_i2c_client(dev); |
| 553 | struct w83627ehf_data *data = i2c_get_clientdata(client); |
Yuan Mu | 412fec8 | 2006-02-05 23:24:16 +0100 | [diff] [blame] | 554 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
| 555 | int nr = sensor_attr->index; |
Jean Delvare | 08e7e27 | 2005-04-25 22:43:25 +0200 | [diff] [blame] | 556 | unsigned int val = simple_strtoul(buf, NULL, 10); |
| 557 | unsigned int reg; |
| 558 | u8 new_div; |
| 559 | |
Ingo Molnar | 9a61bf6 | 2006-01-18 23:19:26 +0100 | [diff] [blame] | 560 | mutex_lock(&data->update_lock); |
Jean Delvare | 08e7e27 | 2005-04-25 22:43:25 +0200 | [diff] [blame] | 561 | if (!val) { |
| 562 | /* No min limit, alarm disabled */ |
| 563 | data->fan_min[nr] = 255; |
| 564 | new_div = data->fan_div[nr]; /* No change */ |
| 565 | dev_info(dev, "fan%u low limit and alarm disabled\n", nr + 1); |
| 566 | } else if ((reg = 1350000U / val) >= 128 * 255) { |
| 567 | /* Speed below this value cannot possibly be represented, |
| 568 | even with the highest divider (128) */ |
| 569 | data->fan_min[nr] = 254; |
| 570 | new_div = 7; /* 128 == (1 << 7) */ |
| 571 | dev_warn(dev, "fan%u low limit %u below minimum %u, set to " |
| 572 | "minimum\n", nr + 1, val, fan_from_reg(254, 128)); |
| 573 | } else if (!reg) { |
| 574 | /* Speed above this value cannot possibly be represented, |
| 575 | even with the lowest divider (1) */ |
| 576 | data->fan_min[nr] = 1; |
| 577 | new_div = 0; /* 1 == (1 << 0) */ |
| 578 | dev_warn(dev, "fan%u low limit %u above maximum %u, set to " |
Jean Delvare | b9110b1 | 2005-05-02 23:08:22 +0200 | [diff] [blame] | 579 | "maximum\n", nr + 1, val, fan_from_reg(1, 1)); |
Jean Delvare | 08e7e27 | 2005-04-25 22:43:25 +0200 | [diff] [blame] | 580 | } else { |
| 581 | /* Automatically pick the best divider, i.e. the one such |
| 582 | that the min limit will correspond to a register value |
| 583 | in the 96..192 range */ |
| 584 | new_div = 0; |
| 585 | while (reg > 192 && new_div < 7) { |
| 586 | reg >>= 1; |
| 587 | new_div++; |
| 588 | } |
| 589 | data->fan_min[nr] = reg; |
| 590 | } |
| 591 | |
| 592 | /* Write both the fan clock divider (if it changed) and the new |
| 593 | fan min (unconditionally) */ |
| 594 | if (new_div != data->fan_div[nr]) { |
| 595 | if (new_div > data->fan_div[nr]) |
| 596 | data->fan[nr] >>= (data->fan_div[nr] - new_div); |
| 597 | else |
| 598 | data->fan[nr] <<= (new_div - data->fan_div[nr]); |
| 599 | |
| 600 | dev_dbg(dev, "fan%u clock divider changed from %u to %u\n", |
| 601 | nr + 1, div_from_reg(data->fan_div[nr]), |
| 602 | div_from_reg(new_div)); |
| 603 | data->fan_div[nr] = new_div; |
| 604 | w83627ehf_write_fan_div(client, nr); |
| 605 | } |
| 606 | w83627ehf_write_value(client, W83627EHF_REG_FAN_MIN[nr], |
| 607 | data->fan_min[nr]); |
Ingo Molnar | 9a61bf6 | 2006-01-18 23:19:26 +0100 | [diff] [blame] | 608 | mutex_unlock(&data->update_lock); |
Jean Delvare | 08e7e27 | 2005-04-25 22:43:25 +0200 | [diff] [blame] | 609 | |
| 610 | return count; |
| 611 | } |
| 612 | |
Yuan Mu | 412fec8 | 2006-02-05 23:24:16 +0100 | [diff] [blame] | 613 | static struct sensor_device_attribute sda_fan_input[] = { |
| 614 | SENSOR_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0), |
| 615 | SENSOR_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1), |
| 616 | SENSOR_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 2), |
| 617 | SENSOR_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 3), |
| 618 | SENSOR_ATTR(fan5_input, S_IRUGO, show_fan, NULL, 4), |
| 619 | }; |
Jean Delvare | 08e7e27 | 2005-04-25 22:43:25 +0200 | [diff] [blame] | 620 | |
Yuan Mu | 412fec8 | 2006-02-05 23:24:16 +0100 | [diff] [blame] | 621 | static struct sensor_device_attribute sda_fan_min[] = { |
| 622 | SENSOR_ATTR(fan1_min, S_IWUSR | S_IRUGO, show_fan_min, |
| 623 | store_fan_min, 0), |
| 624 | SENSOR_ATTR(fan2_min, S_IWUSR | S_IRUGO, show_fan_min, |
| 625 | store_fan_min, 1), |
| 626 | SENSOR_ATTR(fan3_min, S_IWUSR | S_IRUGO, show_fan_min, |
| 627 | store_fan_min, 2), |
| 628 | SENSOR_ATTR(fan4_min, S_IWUSR | S_IRUGO, show_fan_min, |
| 629 | store_fan_min, 3), |
| 630 | SENSOR_ATTR(fan5_min, S_IWUSR | S_IRUGO, show_fan_min, |
| 631 | store_fan_min, 4), |
| 632 | }; |
Jean Delvare | 08e7e27 | 2005-04-25 22:43:25 +0200 | [diff] [blame] | 633 | |
Yuan Mu | 412fec8 | 2006-02-05 23:24:16 +0100 | [diff] [blame] | 634 | static struct sensor_device_attribute sda_fan_div[] = { |
| 635 | SENSOR_ATTR(fan1_div, S_IRUGO, show_fan_div, NULL, 0), |
| 636 | SENSOR_ATTR(fan2_div, S_IRUGO, show_fan_div, NULL, 1), |
| 637 | SENSOR_ATTR(fan3_div, S_IRUGO, show_fan_div, NULL, 2), |
| 638 | SENSOR_ATTR(fan4_div, S_IRUGO, show_fan_div, NULL, 3), |
| 639 | SENSOR_ATTR(fan5_div, S_IRUGO, show_fan_div, NULL, 4), |
| 640 | }; |
Jean Delvare | 08e7e27 | 2005-04-25 22:43:25 +0200 | [diff] [blame] | 641 | |
Yuan Mu | 412fec8 | 2006-02-05 23:24:16 +0100 | [diff] [blame] | 642 | static void device_create_file_fan(struct device *dev, int i) |
| 643 | { |
| 644 | device_create_file(dev, &sda_fan_input[i].dev_attr); |
| 645 | device_create_file(dev, &sda_fan_div[i].dev_attr); |
| 646 | device_create_file(dev, &sda_fan_min[i].dev_attr); |
| 647 | } |
Jean Delvare | 08e7e27 | 2005-04-25 22:43:25 +0200 | [diff] [blame] | 648 | |
| 649 | #define show_temp1_reg(reg) \ |
| 650 | static ssize_t \ |
Greg Kroah-Hartman | 6f637a6 | 2005-06-21 21:01:59 -0700 | [diff] [blame] | 651 | show_##reg(struct device *dev, struct device_attribute *attr, \ |
| 652 | char *buf) \ |
Jean Delvare | 08e7e27 | 2005-04-25 22:43:25 +0200 | [diff] [blame] | 653 | { \ |
| 654 | struct w83627ehf_data *data = w83627ehf_update_device(dev); \ |
| 655 | return sprintf(buf, "%d\n", temp1_from_reg(data->reg)); \ |
| 656 | } |
| 657 | show_temp1_reg(temp1); |
| 658 | show_temp1_reg(temp1_max); |
| 659 | show_temp1_reg(temp1_max_hyst); |
| 660 | |
| 661 | #define store_temp1_reg(REG, reg) \ |
| 662 | static ssize_t \ |
Greg Kroah-Hartman | 6f637a6 | 2005-06-21 21:01:59 -0700 | [diff] [blame] | 663 | store_temp1_##reg(struct device *dev, struct device_attribute *attr, \ |
| 664 | const char *buf, size_t count) \ |
Jean Delvare | 08e7e27 | 2005-04-25 22:43:25 +0200 | [diff] [blame] | 665 | { \ |
| 666 | struct i2c_client *client = to_i2c_client(dev); \ |
| 667 | struct w83627ehf_data *data = i2c_get_clientdata(client); \ |
| 668 | u32 val = simple_strtoul(buf, NULL, 10); \ |
| 669 | \ |
Ingo Molnar | 9a61bf6 | 2006-01-18 23:19:26 +0100 | [diff] [blame] | 670 | mutex_lock(&data->update_lock); \ |
Jean Delvare | 08e7e27 | 2005-04-25 22:43:25 +0200 | [diff] [blame] | 671 | data->temp1_##reg = temp1_to_reg(val); \ |
| 672 | w83627ehf_write_value(client, W83627EHF_REG_TEMP1_##REG, \ |
| 673 | data->temp1_##reg); \ |
Ingo Molnar | 9a61bf6 | 2006-01-18 23:19:26 +0100 | [diff] [blame] | 674 | mutex_unlock(&data->update_lock); \ |
Jean Delvare | 08e7e27 | 2005-04-25 22:43:25 +0200 | [diff] [blame] | 675 | return count; \ |
| 676 | } |
| 677 | store_temp1_reg(OVER, max); |
| 678 | store_temp1_reg(HYST, max_hyst); |
| 679 | |
Jean Delvare | 08e7e27 | 2005-04-25 22:43:25 +0200 | [diff] [blame] | 680 | #define show_temp_reg(reg) \ |
| 681 | static ssize_t \ |
Yuan Mu | 412fec8 | 2006-02-05 23:24:16 +0100 | [diff] [blame] | 682 | show_##reg(struct device *dev, struct device_attribute *attr, \ |
| 683 | char *buf) \ |
Jean Delvare | 08e7e27 | 2005-04-25 22:43:25 +0200 | [diff] [blame] | 684 | { \ |
| 685 | struct w83627ehf_data *data = w83627ehf_update_device(dev); \ |
Yuan Mu | 412fec8 | 2006-02-05 23:24:16 +0100 | [diff] [blame] | 686 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \ |
| 687 | int nr = sensor_attr->index; \ |
Jean Delvare | 08e7e27 | 2005-04-25 22:43:25 +0200 | [diff] [blame] | 688 | return sprintf(buf, "%d\n", \ |
| 689 | LM75_TEMP_FROM_REG(data->reg[nr])); \ |
| 690 | } |
| 691 | show_temp_reg(temp); |
| 692 | show_temp_reg(temp_max); |
| 693 | show_temp_reg(temp_max_hyst); |
| 694 | |
| 695 | #define store_temp_reg(REG, reg) \ |
| 696 | static ssize_t \ |
Yuan Mu | 412fec8 | 2006-02-05 23:24:16 +0100 | [diff] [blame] | 697 | store_##reg(struct device *dev, struct device_attribute *attr, \ |
| 698 | const char *buf, size_t count) \ |
Jean Delvare | 08e7e27 | 2005-04-25 22:43:25 +0200 | [diff] [blame] | 699 | { \ |
| 700 | struct i2c_client *client = to_i2c_client(dev); \ |
| 701 | struct w83627ehf_data *data = i2c_get_clientdata(client); \ |
Yuan Mu | 412fec8 | 2006-02-05 23:24:16 +0100 | [diff] [blame] | 702 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \ |
| 703 | int nr = sensor_attr->index; \ |
Jean Delvare | 08e7e27 | 2005-04-25 22:43:25 +0200 | [diff] [blame] | 704 | u32 val = simple_strtoul(buf, NULL, 10); \ |
| 705 | \ |
Ingo Molnar | 9a61bf6 | 2006-01-18 23:19:26 +0100 | [diff] [blame] | 706 | mutex_lock(&data->update_lock); \ |
Jean Delvare | 08e7e27 | 2005-04-25 22:43:25 +0200 | [diff] [blame] | 707 | data->reg[nr] = LM75_TEMP_TO_REG(val); \ |
| 708 | w83627ehf_write_value(client, W83627EHF_REG_TEMP_##REG[nr], \ |
| 709 | data->reg[nr]); \ |
Ingo Molnar | 9a61bf6 | 2006-01-18 23:19:26 +0100 | [diff] [blame] | 710 | mutex_unlock(&data->update_lock); \ |
Jean Delvare | 08e7e27 | 2005-04-25 22:43:25 +0200 | [diff] [blame] | 711 | return count; \ |
| 712 | } |
| 713 | store_temp_reg(OVER, temp_max); |
| 714 | store_temp_reg(HYST, temp_max_hyst); |
| 715 | |
Yuan Mu | 412fec8 | 2006-02-05 23:24:16 +0100 | [diff] [blame] | 716 | static struct sensor_device_attribute sda_temp[] = { |
| 717 | SENSOR_ATTR(temp1_input, S_IRUGO, show_temp1, NULL, 0), |
| 718 | SENSOR_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 0), |
| 719 | SENSOR_ATTR(temp3_input, S_IRUGO, show_temp, NULL, 1), |
| 720 | SENSOR_ATTR(temp1_max, S_IRUGO | S_IWUSR, show_temp1_max, |
| 721 | store_temp1_max, 0), |
| 722 | SENSOR_ATTR(temp2_max, S_IRUGO | S_IWUSR, show_temp_max, |
| 723 | store_temp_max, 0), |
| 724 | SENSOR_ATTR(temp3_max, S_IRUGO | S_IWUSR, show_temp_max, |
| 725 | store_temp_max, 1), |
| 726 | SENSOR_ATTR(temp1_max_hyst, S_IRUGO | S_IWUSR, show_temp1_max_hyst, |
| 727 | store_temp1_max_hyst, 0), |
| 728 | SENSOR_ATTR(temp2_max_hyst, S_IRUGO | S_IWUSR, show_temp_max_hyst, |
| 729 | store_temp_max_hyst, 0), |
| 730 | SENSOR_ATTR(temp3_max_hyst, S_IRUGO | S_IWUSR, show_temp_max_hyst, |
| 731 | store_temp_max_hyst, 1), |
| 732 | }; |
Jean Delvare | 08e7e27 | 2005-04-25 22:43:25 +0200 | [diff] [blame] | 733 | |
| 734 | /* |
| 735 | * Driver and client management |
| 736 | */ |
| 737 | |
| 738 | static struct i2c_driver w83627ehf_driver; |
| 739 | |
| 740 | static void w83627ehf_init_client(struct i2c_client *client) |
| 741 | { |
| 742 | int i; |
| 743 | u8 tmp; |
| 744 | |
| 745 | /* Start monitoring is needed */ |
| 746 | tmp = w83627ehf_read_value(client, W83627EHF_REG_CONFIG); |
| 747 | if (!(tmp & 0x01)) |
| 748 | w83627ehf_write_value(client, W83627EHF_REG_CONFIG, |
| 749 | tmp | 0x01); |
| 750 | |
| 751 | /* Enable temp2 and temp3 if needed */ |
| 752 | for (i = 0; i < 2; i++) { |
| 753 | tmp = w83627ehf_read_value(client, |
| 754 | W83627EHF_REG_TEMP_CONFIG[i]); |
| 755 | if (tmp & 0x01) |
| 756 | w83627ehf_write_value(client, |
| 757 | W83627EHF_REG_TEMP_CONFIG[i], |
| 758 | tmp & 0xfe); |
| 759 | } |
| 760 | } |
| 761 | |
Jean Delvare | 2d8672c | 2005-07-19 23:56:35 +0200 | [diff] [blame] | 762 | static int w83627ehf_detect(struct i2c_adapter *adapter) |
Jean Delvare | 08e7e27 | 2005-04-25 22:43:25 +0200 | [diff] [blame] | 763 | { |
| 764 | struct i2c_client *client; |
| 765 | struct w83627ehf_data *data; |
Yuan Mu | 412fec8 | 2006-02-05 23:24:16 +0100 | [diff] [blame] | 766 | struct device *dev; |
Jean Delvare | 08e7e27 | 2005-04-25 22:43:25 +0200 | [diff] [blame] | 767 | int i, err = 0; |
| 768 | |
Petr Vandrovec | ada0c2f | 2005-10-07 23:11:03 +0200 | [diff] [blame] | 769 | if (!request_region(address + REGION_OFFSET, REGION_LENGTH, |
Laurent Riffard | cdaf793 | 2005-11-26 20:37:41 +0100 | [diff] [blame] | 770 | w83627ehf_driver.driver.name)) { |
Jean Delvare | 08e7e27 | 2005-04-25 22:43:25 +0200 | [diff] [blame] | 771 | err = -EBUSY; |
| 772 | goto exit; |
| 773 | } |
| 774 | |
Deepak Saxena | ba9c2e8 | 2005-10-17 23:08:32 +0200 | [diff] [blame] | 775 | if (!(data = kzalloc(sizeof(struct w83627ehf_data), GFP_KERNEL))) { |
Jean Delvare | 08e7e27 | 2005-04-25 22:43:25 +0200 | [diff] [blame] | 776 | err = -ENOMEM; |
| 777 | goto exit_release; |
| 778 | } |
Jean Delvare | 08e7e27 | 2005-04-25 22:43:25 +0200 | [diff] [blame] | 779 | |
| 780 | client = &data->client; |
| 781 | i2c_set_clientdata(client, data); |
| 782 | client->addr = address; |
Ingo Molnar | 9a61bf6 | 2006-01-18 23:19:26 +0100 | [diff] [blame] | 783 | mutex_init(&data->lock); |
Jean Delvare | 08e7e27 | 2005-04-25 22:43:25 +0200 | [diff] [blame] | 784 | client->adapter = adapter; |
| 785 | client->driver = &w83627ehf_driver; |
| 786 | client->flags = 0; |
Yuan Mu | 412fec8 | 2006-02-05 23:24:16 +0100 | [diff] [blame] | 787 | dev = &client->dev; |
Jean Delvare | 08e7e27 | 2005-04-25 22:43:25 +0200 | [diff] [blame] | 788 | |
| 789 | strlcpy(client->name, "w83627ehf", I2C_NAME_SIZE); |
| 790 | data->valid = 0; |
Ingo Molnar | 9a61bf6 | 2006-01-18 23:19:26 +0100 | [diff] [blame] | 791 | mutex_init(&data->update_lock); |
Jean Delvare | 08e7e27 | 2005-04-25 22:43:25 +0200 | [diff] [blame] | 792 | |
| 793 | /* Tell the i2c layer a new client has arrived */ |
| 794 | if ((err = i2c_attach_client(client))) |
| 795 | goto exit_free; |
| 796 | |
| 797 | /* Initialize the chip */ |
| 798 | w83627ehf_init_client(client); |
| 799 | |
| 800 | /* A few vars need to be filled upon startup */ |
| 801 | for (i = 0; i < 5; i++) |
| 802 | data->fan_min[i] = w83627ehf_read_value(client, |
| 803 | W83627EHF_REG_FAN_MIN[i]); |
| 804 | |
| 805 | /* It looks like fan4 and fan5 pins can be alternatively used |
| 806 | as fan on/off switches */ |
| 807 | data->has_fan = 0x07; /* fan1, fan2 and fan3 */ |
| 808 | i = w83627ehf_read_value(client, W83627EHF_REG_FANDIV1); |
| 809 | if (i & (1 << 2)) |
| 810 | data->has_fan |= (1 << 3); |
| 811 | if (i & (1 << 0)) |
| 812 | data->has_fan |= (1 << 4); |
| 813 | |
| 814 | /* Register sysfs hooks */ |
Yuan Mu | 412fec8 | 2006-02-05 23:24:16 +0100 | [diff] [blame] | 815 | data->class_dev = hwmon_device_register(dev); |
Mark M. Hoffman | 943b083 | 2005-07-15 21:39:18 -0400 | [diff] [blame] | 816 | if (IS_ERR(data->class_dev)) { |
| 817 | err = PTR_ERR(data->class_dev); |
| 818 | goto exit_detach; |
| 819 | } |
| 820 | |
Rudolf Marek | cf0676f | 2006-03-23 16:25:22 +0100 | [diff] [blame^] | 821 | for (i = 0; i < 10; i++) |
| 822 | device_create_file_in(dev, i); |
| 823 | |
Yuan Mu | 412fec8 | 2006-02-05 23:24:16 +0100 | [diff] [blame] | 824 | for (i = 0; i < 5; i++) { |
| 825 | if (data->has_fan & (1 << i)) |
| 826 | device_create_file_fan(dev, i); |
Jean Delvare | 08e7e27 | 2005-04-25 22:43:25 +0200 | [diff] [blame] | 827 | } |
Yuan Mu | 412fec8 | 2006-02-05 23:24:16 +0100 | [diff] [blame] | 828 | for (i = 0; i < ARRAY_SIZE(sda_temp); i++) |
| 829 | device_create_file(dev, &sda_temp[i].dev_attr); |
Jean Delvare | 08e7e27 | 2005-04-25 22:43:25 +0200 | [diff] [blame] | 830 | |
| 831 | return 0; |
| 832 | |
Mark M. Hoffman | 943b083 | 2005-07-15 21:39:18 -0400 | [diff] [blame] | 833 | exit_detach: |
| 834 | i2c_detach_client(client); |
Jean Delvare | 08e7e27 | 2005-04-25 22:43:25 +0200 | [diff] [blame] | 835 | exit_free: |
| 836 | kfree(data); |
| 837 | exit_release: |
Petr Vandrovec | ada0c2f | 2005-10-07 23:11:03 +0200 | [diff] [blame] | 838 | release_region(address + REGION_OFFSET, REGION_LENGTH); |
Jean Delvare | 08e7e27 | 2005-04-25 22:43:25 +0200 | [diff] [blame] | 839 | exit: |
| 840 | return err; |
| 841 | } |
| 842 | |
Jean Delvare | 08e7e27 | 2005-04-25 22:43:25 +0200 | [diff] [blame] | 843 | static int w83627ehf_detach_client(struct i2c_client *client) |
| 844 | { |
Mark M. Hoffman | 943b083 | 2005-07-15 21:39:18 -0400 | [diff] [blame] | 845 | struct w83627ehf_data *data = i2c_get_clientdata(client); |
Jean Delvare | 08e7e27 | 2005-04-25 22:43:25 +0200 | [diff] [blame] | 846 | int err; |
| 847 | |
Mark M. Hoffman | 943b083 | 2005-07-15 21:39:18 -0400 | [diff] [blame] | 848 | hwmon_device_unregister(data->class_dev); |
| 849 | |
Jean Delvare | 7bef559 | 2005-07-27 22:14:49 +0200 | [diff] [blame] | 850 | if ((err = i2c_detach_client(client))) |
Jean Delvare | 08e7e27 | 2005-04-25 22:43:25 +0200 | [diff] [blame] | 851 | return err; |
Petr Vandrovec | ada0c2f | 2005-10-07 23:11:03 +0200 | [diff] [blame] | 852 | release_region(client->addr + REGION_OFFSET, REGION_LENGTH); |
Mark M. Hoffman | 943b083 | 2005-07-15 21:39:18 -0400 | [diff] [blame] | 853 | kfree(data); |
Jean Delvare | 08e7e27 | 2005-04-25 22:43:25 +0200 | [diff] [blame] | 854 | |
| 855 | return 0; |
| 856 | } |
| 857 | |
| 858 | static struct i2c_driver w83627ehf_driver = { |
Laurent Riffard | cdaf793 | 2005-11-26 20:37:41 +0100 | [diff] [blame] | 859 | .driver = { |
Laurent Riffard | cdaf793 | 2005-11-26 20:37:41 +0100 | [diff] [blame] | 860 | .name = "w83627ehf", |
| 861 | }, |
Jean Delvare | 2d8672c | 2005-07-19 23:56:35 +0200 | [diff] [blame] | 862 | .attach_adapter = w83627ehf_detect, |
Jean Delvare | 08e7e27 | 2005-04-25 22:43:25 +0200 | [diff] [blame] | 863 | .detach_client = w83627ehf_detach_client, |
| 864 | }; |
| 865 | |
Jean Delvare | 2d8672c | 2005-07-19 23:56:35 +0200 | [diff] [blame] | 866 | static int __init w83627ehf_find(int sioaddr, unsigned short *addr) |
Jean Delvare | 08e7e27 | 2005-04-25 22:43:25 +0200 | [diff] [blame] | 867 | { |
| 868 | u16 val; |
| 869 | |
| 870 | REG = sioaddr; |
| 871 | VAL = sioaddr + 1; |
| 872 | superio_enter(); |
| 873 | |
| 874 | val = (superio_inb(SIO_REG_DEVID) << 8) |
| 875 | | superio_inb(SIO_REG_DEVID + 1); |
| 876 | if ((val & SIO_ID_MASK) != SIO_W83627EHF_ID) { |
| 877 | superio_exit(); |
| 878 | return -ENODEV; |
| 879 | } |
| 880 | |
| 881 | superio_select(W83627EHF_LD_HWM); |
| 882 | val = (superio_inb(SIO_REG_ADDR) << 8) |
| 883 | | superio_inb(SIO_REG_ADDR + 1); |
Petr Vandrovec | ada0c2f | 2005-10-07 23:11:03 +0200 | [diff] [blame] | 884 | *addr = val & REGION_ALIGNMENT; |
Jean Delvare | 2d8672c | 2005-07-19 23:56:35 +0200 | [diff] [blame] | 885 | if (*addr == 0) { |
Jean Delvare | 08e7e27 | 2005-04-25 22:43:25 +0200 | [diff] [blame] | 886 | superio_exit(); |
| 887 | return -ENODEV; |
| 888 | } |
| 889 | |
| 890 | /* Activate logical device if needed */ |
| 891 | val = superio_inb(SIO_REG_ENABLE); |
| 892 | if (!(val & 0x01)) |
| 893 | superio_outb(SIO_REG_ENABLE, val | 0x01); |
| 894 | |
| 895 | superio_exit(); |
| 896 | return 0; |
| 897 | } |
| 898 | |
| 899 | static int __init sensors_w83627ehf_init(void) |
| 900 | { |
Jean Delvare | 2d8672c | 2005-07-19 23:56:35 +0200 | [diff] [blame] | 901 | if (w83627ehf_find(0x2e, &address) |
| 902 | && w83627ehf_find(0x4e, &address)) |
Jean Delvare | 08e7e27 | 2005-04-25 22:43:25 +0200 | [diff] [blame] | 903 | return -ENODEV; |
| 904 | |
Jean Delvare | fde0950 | 2005-07-19 23:51:07 +0200 | [diff] [blame] | 905 | return i2c_isa_add_driver(&w83627ehf_driver); |
Jean Delvare | 08e7e27 | 2005-04-25 22:43:25 +0200 | [diff] [blame] | 906 | } |
| 907 | |
| 908 | static void __exit sensors_w83627ehf_exit(void) |
| 909 | { |
Jean Delvare | fde0950 | 2005-07-19 23:51:07 +0200 | [diff] [blame] | 910 | i2c_isa_del_driver(&w83627ehf_driver); |
Jean Delvare | 08e7e27 | 2005-04-25 22:43:25 +0200 | [diff] [blame] | 911 | } |
| 912 | |
| 913 | MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>"); |
| 914 | MODULE_DESCRIPTION("W83627EHF driver"); |
| 915 | MODULE_LICENSE("GPL"); |
| 916 | |
| 917 | module_init(sensors_w83627ehf_init); |
| 918 | module_exit(sensors_w83627ehf_exit); |