Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 1 | /* |
| 2 | w83793.c - Linux kernel driver for hardware monitoring |
| 3 | Copyright (C) 2006 Winbond Electronics Corp. |
| 4 | Yuan Mu |
| 5 | Rudolf Marek <r.marek@assembler.cz> |
| 6 | |
| 7 | This program is free software; you can redistribute it and/or modify |
| 8 | it under the terms of the GNU General Public License as published by |
| 9 | the Free Software Foundation - version 2. |
| 10 | |
| 11 | This program is distributed in the hope that it will be useful, |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | GNU General Public License for more details. |
| 15 | |
| 16 | You should have received a copy of the GNU General Public License |
| 17 | along with this program; if not, write to the Free Software |
| 18 | Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
| 19 | 02110-1301 USA. |
| 20 | */ |
| 21 | |
| 22 | /* |
| 23 | Supports following chips: |
| 24 | |
| 25 | Chip #vin #fanin #pwm #temp wchipid vendid i2c ISA |
| 26 | w83793 10 12 8 6 0x7b 0x5ca3 yes no |
| 27 | */ |
| 28 | |
| 29 | #include <linux/module.h> |
| 30 | #include <linux/init.h> |
| 31 | #include <linux/slab.h> |
| 32 | #include <linux/i2c.h> |
| 33 | #include <linux/hwmon.h> |
| 34 | #include <linux/hwmon-vid.h> |
| 35 | #include <linux/hwmon-sysfs.h> |
| 36 | #include <linux/err.h> |
| 37 | #include <linux/mutex.h> |
| 38 | |
| 39 | /* Addresses to scan */ |
| 40 | static unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, 0x2f, I2C_CLIENT_END }; |
| 41 | |
| 42 | /* Insmod parameters */ |
| 43 | I2C_CLIENT_INSMOD_1(w83793); |
| 44 | I2C_CLIENT_MODULE_PARM(force_subclients, "List of subclient addresses: " |
| 45 | "{bus, clientaddr, subclientaddr1, subclientaddr2}"); |
| 46 | |
| 47 | static int reset; |
| 48 | module_param(reset, bool, 0); |
| 49 | MODULE_PARM_DESC(reset, "Set to 1 to reset chip, not recommended"); |
| 50 | |
| 51 | /* |
| 52 | Address 0x00, 0x0d, 0x0e, 0x0f in all three banks are reserved |
| 53 | as ID, Bank Select registers |
| 54 | */ |
| 55 | #define W83793_REG_BANKSEL 0x00 |
| 56 | #define W83793_REG_VENDORID 0x0d |
| 57 | #define W83793_REG_CHIPID 0x0e |
| 58 | #define W83793_REG_DEVICEID 0x0f |
| 59 | |
| 60 | #define W83793_REG_CONFIG 0x40 |
| 61 | #define W83793_REG_MFC 0x58 |
| 62 | #define W83793_REG_FANIN_CTRL 0x5c |
| 63 | #define W83793_REG_FANIN_SEL 0x5d |
| 64 | #define W83793_REG_I2C_ADDR 0x0b |
| 65 | #define W83793_REG_I2C_SUBADDR 0x0c |
| 66 | #define W83793_REG_VID_INA 0x05 |
| 67 | #define W83793_REG_VID_INB 0x06 |
| 68 | #define W83793_REG_VID_LATCHA 0x07 |
| 69 | #define W83793_REG_VID_LATCHB 0x08 |
| 70 | #define W83793_REG_VID_CTRL 0x59 |
| 71 | |
| 72 | static u16 W83793_REG_TEMP_MODE[2] = { 0x5e, 0x5f }; |
| 73 | |
| 74 | #define TEMP_READ 0 |
| 75 | #define TEMP_CRIT 1 |
| 76 | #define TEMP_CRIT_HYST 2 |
| 77 | #define TEMP_WARN 3 |
| 78 | #define TEMP_WARN_HYST 4 |
| 79 | /* only crit and crit_hyst affect real-time alarm status |
| 80 | current crit crit_hyst warn warn_hyst */ |
| 81 | static u16 W83793_REG_TEMP[][5] = { |
| 82 | {0x1c, 0x78, 0x79, 0x7a, 0x7b}, |
| 83 | {0x1d, 0x7c, 0x7d, 0x7e, 0x7f}, |
| 84 | {0x1e, 0x80, 0x81, 0x82, 0x83}, |
| 85 | {0x1f, 0x84, 0x85, 0x86, 0x87}, |
| 86 | {0x20, 0x88, 0x89, 0x8a, 0x8b}, |
| 87 | {0x21, 0x8c, 0x8d, 0x8e, 0x8f}, |
| 88 | }; |
| 89 | |
| 90 | #define W83793_REG_TEMP_LOW_BITS 0x22 |
| 91 | |
| 92 | #define W83793_REG_BEEP(index) (0x53 + (index)) |
| 93 | #define W83793_REG_ALARM(index) (0x4b + (index)) |
| 94 | |
| 95 | #define W83793_REG_CLR_CHASSIS 0x4a /* SMI MASK4 */ |
| 96 | #define W83793_REG_IRQ_CTRL 0x50 |
| 97 | #define W83793_REG_OVT_CTRL 0x51 |
| 98 | #define W83793_REG_OVT_BEEP 0x52 |
| 99 | |
| 100 | #define IN_READ 0 |
| 101 | #define IN_MAX 1 |
| 102 | #define IN_LOW 2 |
| 103 | static const u16 W83793_REG_IN[][3] = { |
| 104 | /* Current, High, Low */ |
| 105 | {0x10, 0x60, 0x61}, /* Vcore A */ |
| 106 | {0x11, 0x62, 0x63}, /* Vcore B */ |
| 107 | {0x12, 0x64, 0x65}, /* Vtt */ |
| 108 | {0x14, 0x6a, 0x6b}, /* VSEN1 */ |
| 109 | {0x15, 0x6c, 0x6d}, /* VSEN2 */ |
| 110 | {0x16, 0x6e, 0x6f}, /* +3VSEN */ |
| 111 | {0x17, 0x70, 0x71}, /* +12VSEN */ |
| 112 | {0x18, 0x72, 0x73}, /* 5VDD */ |
| 113 | {0x19, 0x74, 0x75}, /* 5VSB */ |
| 114 | {0x1a, 0x76, 0x77}, /* VBAT */ |
| 115 | }; |
| 116 | |
| 117 | /* Low Bits of Vcore A/B Vtt Read/High/Low */ |
| 118 | static const u16 W83793_REG_IN_LOW_BITS[] = { 0x1b, 0x68, 0x69 }; |
| 119 | static u8 scale_in[] = { 2, 2, 2, 16, 16, 16, 8, 24, 24, 16 }; |
Gong Jun | ddca933 | 2007-01-18 22:14:23 +0100 | [diff] [blame] | 120 | static u8 scale_in_add[] = { 0, 0, 0, 0, 0, 0, 0, 150, 150, 0 }; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 121 | |
| 122 | #define W83793_REG_FAN(index) (0x23 + 2 * (index)) /* High byte */ |
| 123 | #define W83793_REG_FAN_MIN(index) (0x90 + 2 * (index)) /* High byte */ |
| 124 | |
| 125 | #define W83793_REG_PWM_DEFAULT 0xb2 |
| 126 | #define W83793_REG_PWM_ENABLE 0x207 |
| 127 | #define W83793_REG_PWM_UPTIME 0xc3 /* Unit in 0.1 second */ |
| 128 | #define W83793_REG_PWM_DOWNTIME 0xc4 /* Unit in 0.1 second */ |
| 129 | #define W83793_REG_TEMP_CRITICAL 0xc5 |
| 130 | |
| 131 | #define PWM_DUTY 0 |
| 132 | #define PWM_START 1 |
| 133 | #define PWM_NONSTOP 2 |
| 134 | #define W83793_REG_PWM(index, nr) (((nr) == 0 ? 0xb3 : \ |
| 135 | (nr) == 1 ? 0x220 : 0x218) + (index)) |
| 136 | |
| 137 | /* bit field, fan1 is bit0, fan2 is bit1 ... */ |
| 138 | #define W83793_REG_TEMP_FAN_MAP(index) (0x201 + (index)) |
| 139 | #define W83793_REG_TEMP_TOL(index) (0x208 + (index)) |
| 140 | #define W83793_REG_TEMP_CRUISE(index) (0x210 + (index)) |
| 141 | #define W83793_REG_PWM_STOP_TIME(index) (0x228 + (index)) |
| 142 | #define W83793_REG_SF2_TEMP(index, nr) (0x230 + ((index) << 4) + (nr)) |
| 143 | #define W83793_REG_SF2_PWM(index, nr) (0x238 + ((index) << 4) + (nr)) |
| 144 | |
| 145 | static inline unsigned long FAN_FROM_REG(u16 val) |
| 146 | { |
| 147 | if ((val >= 0xfff) || (val == 0)) |
| 148 | return 0; |
| 149 | return (1350000UL / val); |
| 150 | } |
| 151 | |
| 152 | static inline u16 FAN_TO_REG(long rpm) |
| 153 | { |
| 154 | if (rpm <= 0) |
| 155 | return 0x0fff; |
| 156 | return SENSORS_LIMIT((1350000 + (rpm >> 1)) / rpm, 1, 0xffe); |
| 157 | } |
| 158 | |
| 159 | static inline unsigned long TIME_FROM_REG(u8 reg) |
| 160 | { |
| 161 | return (reg * 100); |
| 162 | } |
| 163 | |
| 164 | static inline u8 TIME_TO_REG(unsigned long val) |
| 165 | { |
| 166 | return SENSORS_LIMIT((val + 50) / 100, 0, 0xff); |
| 167 | } |
| 168 | |
| 169 | static inline long TEMP_FROM_REG(s8 reg) |
| 170 | { |
| 171 | return (reg * 1000); |
| 172 | } |
| 173 | |
| 174 | static inline s8 TEMP_TO_REG(long val, s8 min, s8 max) |
| 175 | { |
| 176 | return SENSORS_LIMIT((val + (val < 0 ? -500 : 500)) / 1000, min, max); |
| 177 | } |
| 178 | |
| 179 | struct w83793_data { |
| 180 | struct i2c_client client; |
| 181 | struct i2c_client *lm75[2]; |
| 182 | struct class_device *class_dev; |
| 183 | struct mutex update_lock; |
| 184 | char valid; /* !=0 if following fields are valid */ |
| 185 | unsigned long last_updated; /* In jiffies */ |
| 186 | unsigned long last_nonvolatile; /* In jiffies, last time we update the |
| 187 | nonvolatile registers */ |
| 188 | |
| 189 | u8 bank; |
| 190 | u8 vrm; |
| 191 | u8 vid[2]; |
| 192 | u8 in[10][3]; /* Register value, read/high/low */ |
| 193 | u8 in_low_bits[3]; /* Additional resolution for VCore A/B Vtt */ |
| 194 | |
| 195 | u16 has_fan; /* Only fan1- fan5 has own pins */ |
| 196 | u16 fan[12]; /* Register value combine */ |
| 197 | u16 fan_min[12]; /* Register value combine */ |
| 198 | |
| 199 | s8 temp[6][5]; /* current, crit, crit_hyst,warn, warn_hyst */ |
| 200 | u8 temp_low_bits; /* Additional resolution TD1-TD4 */ |
| 201 | u8 temp_mode[2]; /* byte 0: Temp D1-D4 mode each has 2 bits |
| 202 | byte 1: Temp R1,R2 mode, each has 1 bit */ |
| 203 | u8 temp_critical; /* If reached all fan will be at full speed */ |
| 204 | u8 temp_fan_map[6]; /* Temp controls which pwm fan, bit field */ |
| 205 | |
| 206 | u8 has_pwm; |
| 207 | u8 pwm_enable; /* Register value, each Temp has 1 bit */ |
| 208 | u8 pwm_uptime; /* Register value */ |
| 209 | u8 pwm_downtime; /* Register value */ |
| 210 | u8 pwm_default; /* All fan default pwm, next poweron valid */ |
| 211 | u8 pwm[8][3]; /* Register value */ |
| 212 | u8 pwm_stop_time[8]; |
| 213 | u8 temp_cruise[6]; |
| 214 | |
| 215 | u8 alarms[5]; /* realtime status registers */ |
| 216 | u8 beeps[5]; |
| 217 | u8 beep_enable; |
| 218 | u8 tolerance[3]; /* Temp tolerance(Smart Fan I/II) */ |
| 219 | u8 sf2_pwm[6][7]; /* Smart FanII: Fan duty cycle */ |
| 220 | u8 sf2_temp[6][7]; /* Smart FanII: Temp level point */ |
| 221 | }; |
| 222 | |
| 223 | static u8 w83793_read_value(struct i2c_client *client, u16 reg); |
| 224 | static int w83793_write_value(struct i2c_client *client, u16 reg, u8 value); |
| 225 | static int w83793_attach_adapter(struct i2c_adapter *adapter); |
| 226 | static int w83793_detect(struct i2c_adapter *adapter, int address, int kind); |
| 227 | static int w83793_detach_client(struct i2c_client *client); |
| 228 | static void w83793_init_client(struct i2c_client *client); |
| 229 | static void w83793_update_nonvolatile(struct device *dev); |
| 230 | static struct w83793_data *w83793_update_device(struct device *dev); |
| 231 | |
| 232 | static struct i2c_driver w83793_driver = { |
| 233 | .driver = { |
| 234 | .name = "w83793", |
| 235 | }, |
| 236 | .attach_adapter = w83793_attach_adapter, |
| 237 | .detach_client = w83793_detach_client, |
| 238 | }; |
| 239 | |
| 240 | static ssize_t |
| 241 | show_vrm(struct device *dev, struct device_attribute *attr, char *buf) |
| 242 | { |
| 243 | struct i2c_client *client = to_i2c_client(dev); |
| 244 | struct w83793_data *data = i2c_get_clientdata(client); |
| 245 | |
| 246 | return sprintf(buf, "%d\n", data->vrm); |
| 247 | } |
| 248 | |
| 249 | static ssize_t |
| 250 | show_vid(struct device *dev, struct device_attribute *attr, char *buf) |
| 251 | { |
| 252 | struct w83793_data *data = w83793_update_device(dev); |
| 253 | struct sensor_device_attribute_2 *sensor_attr = |
| 254 | to_sensor_dev_attr_2(attr); |
| 255 | int index = sensor_attr->index; |
| 256 | |
| 257 | return sprintf(buf, "%d\n", vid_from_reg(data->vid[index], data->vrm)); |
| 258 | } |
| 259 | |
| 260 | static ssize_t |
| 261 | store_vrm(struct device *dev, struct device_attribute *attr, |
| 262 | const char *buf, size_t count) |
| 263 | { |
| 264 | struct i2c_client *client = to_i2c_client(dev); |
| 265 | struct w83793_data *data = i2c_get_clientdata(client); |
| 266 | |
| 267 | data->vrm = simple_strtoul(buf, NULL, 10); |
| 268 | return count; |
| 269 | } |
| 270 | |
| 271 | #define ALARM_STATUS 0 |
| 272 | #define BEEP_ENABLE 1 |
| 273 | static ssize_t |
| 274 | show_alarm_beep(struct device *dev, struct device_attribute *attr, char *buf) |
| 275 | { |
| 276 | struct w83793_data *data = w83793_update_device(dev); |
| 277 | struct sensor_device_attribute_2 *sensor_attr = |
| 278 | to_sensor_dev_attr_2(attr); |
| 279 | int nr = sensor_attr->nr; |
| 280 | int index = sensor_attr->index >> 3; |
| 281 | int bit = sensor_attr->index & 0x07; |
| 282 | u8 val; |
| 283 | |
| 284 | if (ALARM_STATUS == nr) { |
| 285 | val = (data->alarms[index] >> (bit)) & 1; |
| 286 | } else { /* BEEP_ENABLE */ |
| 287 | val = (data->beeps[index] >> (bit)) & 1; |
| 288 | } |
| 289 | |
| 290 | return sprintf(buf, "%u\n", val); |
| 291 | } |
| 292 | |
| 293 | static ssize_t |
| 294 | store_beep(struct device *dev, struct device_attribute *attr, |
| 295 | const char *buf, size_t count) |
| 296 | { |
| 297 | struct i2c_client *client = to_i2c_client(dev); |
| 298 | struct w83793_data *data = i2c_get_clientdata(client); |
| 299 | struct sensor_device_attribute_2 *sensor_attr = |
| 300 | to_sensor_dev_attr_2(attr); |
| 301 | int index = sensor_attr->index >> 3; |
| 302 | int shift = sensor_attr->index & 0x07; |
| 303 | u8 beep_bit = 1 << shift; |
| 304 | u8 val; |
| 305 | |
| 306 | val = simple_strtoul(buf, NULL, 10); |
| 307 | if (val != 0 && val != 1) |
| 308 | return -EINVAL; |
| 309 | |
| 310 | mutex_lock(&data->update_lock); |
| 311 | data->beeps[index] = w83793_read_value(client, W83793_REG_BEEP(index)); |
| 312 | data->beeps[index] &= ~beep_bit; |
| 313 | data->beeps[index] |= val << shift; |
| 314 | w83793_write_value(client, W83793_REG_BEEP(index), data->beeps[index]); |
| 315 | mutex_unlock(&data->update_lock); |
| 316 | |
| 317 | return count; |
| 318 | } |
| 319 | |
| 320 | static ssize_t |
| 321 | show_beep_enable(struct device *dev, struct device_attribute *attr, char *buf) |
| 322 | { |
| 323 | struct w83793_data *data = w83793_update_device(dev); |
| 324 | return sprintf(buf, "%u\n", (data->beep_enable >> 1) & 0x01); |
| 325 | } |
| 326 | |
| 327 | static ssize_t |
| 328 | store_beep_enable(struct device *dev, struct device_attribute *attr, |
| 329 | const char *buf, size_t count) |
| 330 | { |
| 331 | struct i2c_client *client = to_i2c_client(dev); |
| 332 | struct w83793_data *data = i2c_get_clientdata(client); |
| 333 | u8 val = simple_strtoul(buf, NULL, 10); |
| 334 | |
| 335 | if (val != 0 && val != 1) |
| 336 | return -EINVAL; |
| 337 | |
| 338 | mutex_lock(&data->update_lock); |
| 339 | data->beep_enable = w83793_read_value(client, W83793_REG_OVT_BEEP) |
| 340 | & 0xfd; |
| 341 | data->beep_enable |= val << 1; |
| 342 | w83793_write_value(client, W83793_REG_OVT_BEEP, data->beep_enable); |
| 343 | mutex_unlock(&data->update_lock); |
| 344 | |
| 345 | return count; |
| 346 | } |
| 347 | |
| 348 | /* Write any value to clear chassis alarm */ |
| 349 | static ssize_t |
| 350 | store_chassis_clear(struct device *dev, |
| 351 | struct device_attribute *attr, const char *buf, |
| 352 | size_t count) |
| 353 | { |
| 354 | struct i2c_client *client = to_i2c_client(dev); |
| 355 | struct w83793_data *data = i2c_get_clientdata(client); |
| 356 | u8 val; |
| 357 | |
| 358 | mutex_lock(&data->update_lock); |
| 359 | val = w83793_read_value(client, W83793_REG_CLR_CHASSIS); |
| 360 | val |= 0x80; |
| 361 | w83793_write_value(client, W83793_REG_CLR_CHASSIS, val); |
| 362 | mutex_unlock(&data->update_lock); |
| 363 | return count; |
| 364 | } |
| 365 | |
| 366 | #define FAN_INPUT 0 |
| 367 | #define FAN_MIN 1 |
| 368 | static ssize_t |
| 369 | show_fan(struct device *dev, struct device_attribute *attr, char *buf) |
| 370 | { |
| 371 | struct sensor_device_attribute_2 *sensor_attr = |
| 372 | to_sensor_dev_attr_2(attr); |
| 373 | int nr = sensor_attr->nr; |
| 374 | int index = sensor_attr->index; |
| 375 | struct w83793_data *data = w83793_update_device(dev); |
| 376 | u16 val; |
| 377 | |
| 378 | if (FAN_INPUT == nr) { |
| 379 | val = data->fan[index] & 0x0fff; |
| 380 | } else { |
| 381 | val = data->fan_min[index] & 0x0fff; |
| 382 | } |
| 383 | |
| 384 | return sprintf(buf, "%lu\n", FAN_FROM_REG(val)); |
| 385 | } |
| 386 | |
| 387 | static ssize_t |
| 388 | store_fan_min(struct device *dev, struct device_attribute *attr, |
| 389 | const char *buf, size_t count) |
| 390 | { |
| 391 | struct sensor_device_attribute_2 *sensor_attr = |
| 392 | to_sensor_dev_attr_2(attr); |
| 393 | int index = sensor_attr->index; |
| 394 | struct i2c_client *client = to_i2c_client(dev); |
| 395 | struct w83793_data *data = i2c_get_clientdata(client); |
| 396 | u16 val = FAN_TO_REG(simple_strtoul(buf, NULL, 10)); |
| 397 | |
| 398 | mutex_lock(&data->update_lock); |
| 399 | data->fan_min[index] = val; |
| 400 | w83793_write_value(client, W83793_REG_FAN_MIN(index), |
| 401 | (val >> 8) & 0xff); |
| 402 | w83793_write_value(client, W83793_REG_FAN_MIN(index) + 1, val & 0xff); |
| 403 | mutex_unlock(&data->update_lock); |
| 404 | |
| 405 | return count; |
| 406 | } |
| 407 | |
| 408 | #define PWM_DUTY 0 |
| 409 | #define PWM_START 1 |
| 410 | #define PWM_NONSTOP 2 |
| 411 | #define PWM_STOP_TIME 3 |
| 412 | static ssize_t |
| 413 | show_pwm(struct device *dev, struct device_attribute *attr, char *buf) |
| 414 | { |
| 415 | struct sensor_device_attribute_2 *sensor_attr = |
| 416 | to_sensor_dev_attr_2(attr); |
| 417 | struct w83793_data *data = w83793_update_device(dev); |
| 418 | u16 val; |
| 419 | int nr = sensor_attr->nr; |
| 420 | int index = sensor_attr->index; |
| 421 | |
| 422 | if (PWM_STOP_TIME == nr) |
| 423 | val = TIME_FROM_REG(data->pwm_stop_time[index]); |
| 424 | else |
| 425 | val = (data->pwm[index][nr] & 0x3f) << 2; |
| 426 | |
| 427 | return sprintf(buf, "%d\n", val); |
| 428 | } |
| 429 | |
| 430 | static ssize_t |
| 431 | store_pwm(struct device *dev, struct device_attribute *attr, |
| 432 | const char *buf, size_t count) |
| 433 | { |
| 434 | struct i2c_client *client = to_i2c_client(dev); |
| 435 | struct w83793_data *data = i2c_get_clientdata(client); |
| 436 | struct sensor_device_attribute_2 *sensor_attr = |
| 437 | to_sensor_dev_attr_2(attr); |
| 438 | int nr = sensor_attr->nr; |
| 439 | int index = sensor_attr->index; |
| 440 | u8 val; |
| 441 | |
| 442 | mutex_lock(&data->update_lock); |
| 443 | if (PWM_STOP_TIME == nr) { |
| 444 | val = TIME_TO_REG(simple_strtoul(buf, NULL, 10)); |
| 445 | data->pwm_stop_time[index] = val; |
| 446 | w83793_write_value(client, W83793_REG_PWM_STOP_TIME(index), |
| 447 | val); |
| 448 | } else { |
| 449 | val = SENSORS_LIMIT(simple_strtoul(buf, NULL, 10), 0, 0xff) |
| 450 | >> 2; |
| 451 | data->pwm[index][nr] = |
| 452 | w83793_read_value(client, W83793_REG_PWM(index, nr)) & 0xc0; |
| 453 | data->pwm[index][nr] |= val; |
| 454 | w83793_write_value(client, W83793_REG_PWM(index, nr), |
| 455 | data->pwm[index][nr]); |
| 456 | } |
| 457 | |
| 458 | mutex_unlock(&data->update_lock); |
| 459 | return count; |
| 460 | } |
| 461 | |
| 462 | static ssize_t |
| 463 | show_temp(struct device *dev, struct device_attribute *attr, char *buf) |
| 464 | { |
| 465 | struct sensor_device_attribute_2 *sensor_attr = |
| 466 | to_sensor_dev_attr_2(attr); |
| 467 | int nr = sensor_attr->nr; |
| 468 | int index = sensor_attr->index; |
| 469 | struct w83793_data *data = w83793_update_device(dev); |
| 470 | long temp = TEMP_FROM_REG(data->temp[index][nr]); |
| 471 | |
| 472 | if (TEMP_READ == nr && index < 4) { /* Only TD1-TD4 have low bits */ |
| 473 | int low = ((data->temp_low_bits >> (index * 2)) & 0x03) * 250; |
| 474 | temp += temp > 0 ? low : -low; |
| 475 | } |
| 476 | return sprintf(buf, "%ld\n", temp); |
| 477 | } |
| 478 | |
| 479 | static ssize_t |
| 480 | store_temp(struct device *dev, struct device_attribute *attr, |
| 481 | const char *buf, size_t count) |
| 482 | { |
| 483 | struct sensor_device_attribute_2 *sensor_attr = |
| 484 | to_sensor_dev_attr_2(attr); |
| 485 | int nr = sensor_attr->nr; |
| 486 | int index = sensor_attr->index; |
| 487 | struct i2c_client *client = to_i2c_client(dev); |
| 488 | struct w83793_data *data = i2c_get_clientdata(client); |
| 489 | long tmp = simple_strtol(buf, NULL, 10); |
| 490 | |
| 491 | mutex_lock(&data->update_lock); |
| 492 | data->temp[index][nr] = TEMP_TO_REG(tmp, -128, 127); |
| 493 | w83793_write_value(client, W83793_REG_TEMP[index][nr], |
| 494 | data->temp[index][nr]); |
| 495 | mutex_unlock(&data->update_lock); |
| 496 | return count; |
| 497 | } |
| 498 | |
| 499 | /* |
| 500 | TD1-TD4 |
| 501 | each has 4 mode:(2 bits) |
| 502 | 0: Stop monitor |
| 503 | 1: Use internal temp sensor(default) |
Gong Jun | ddca933 | 2007-01-18 22:14:23 +0100 | [diff] [blame] | 504 | 2: Reserved |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 505 | 3: Use sensor in Intel CPU and get result by PECI |
| 506 | |
| 507 | TR1-TR2 |
| 508 | each has 2 mode:(1 bit) |
| 509 | 0: Disable temp sensor monitor |
| 510 | 1: To enable temp sensors monitor |
| 511 | */ |
| 512 | |
Gong Jun | ddca933 | 2007-01-18 22:14:23 +0100 | [diff] [blame] | 513 | /* 0 disable, 6 PECI */ |
| 514 | static u8 TO_TEMP_MODE[] = { 0, 0, 0, 6 }; |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 515 | |
| 516 | static ssize_t |
| 517 | show_temp_mode(struct device *dev, struct device_attribute *attr, char *buf) |
| 518 | { |
| 519 | struct w83793_data *data = w83793_update_device(dev); |
| 520 | struct sensor_device_attribute_2 *sensor_attr = |
| 521 | to_sensor_dev_attr_2(attr); |
| 522 | int index = sensor_attr->index; |
| 523 | u8 mask = (index < 4) ? 0x03 : 0x01; |
| 524 | u8 shift = (index < 4) ? (2 * index) : (index - 4); |
| 525 | u8 tmp; |
| 526 | index = (index < 4) ? 0 : 1; |
| 527 | |
| 528 | tmp = (data->temp_mode[index] >> shift) & mask; |
| 529 | |
| 530 | /* for the internal sensor, found out if diode or thermistor */ |
| 531 | if (tmp == 1) { |
| 532 | tmp = index == 0 ? 3 : 4; |
| 533 | } else { |
| 534 | tmp = TO_TEMP_MODE[tmp]; |
| 535 | } |
| 536 | |
| 537 | return sprintf(buf, "%d\n", tmp); |
| 538 | } |
| 539 | |
| 540 | static ssize_t |
| 541 | store_temp_mode(struct device *dev, struct device_attribute *attr, |
| 542 | const char *buf, size_t count) |
| 543 | { |
| 544 | struct i2c_client *client = to_i2c_client(dev); |
| 545 | struct w83793_data *data = i2c_get_clientdata(client); |
| 546 | struct sensor_device_attribute_2 *sensor_attr = |
| 547 | to_sensor_dev_attr_2(attr); |
| 548 | int index = sensor_attr->index; |
| 549 | u8 mask = (index < 4) ? 0x03 : 0x01; |
| 550 | u8 shift = (index < 4) ? (2 * index) : (index - 4); |
| 551 | u8 val = simple_strtoul(buf, NULL, 10); |
| 552 | |
| 553 | /* transform the sysfs interface values into table above */ |
Gong Jun | ddca933 | 2007-01-18 22:14:23 +0100 | [diff] [blame] | 554 | if ((val == 6) && (index < 4)) { |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 555 | val -= 3; |
| 556 | } else if ((val == 3 && index < 4) |
| 557 | || (val == 4 && index >= 4) |
| 558 | || val == 0) { |
| 559 | /* transform diode or thermistor into internal enable */ |
| 560 | val = !!val; |
| 561 | } else { |
| 562 | return -EINVAL; |
| 563 | } |
| 564 | |
| 565 | index = (index < 4) ? 0 : 1; |
| 566 | mutex_lock(&data->update_lock); |
| 567 | data->temp_mode[index] = |
| 568 | w83793_read_value(client, W83793_REG_TEMP_MODE[index]); |
| 569 | data->temp_mode[index] &= ~(mask << shift); |
| 570 | data->temp_mode[index] |= val << shift; |
| 571 | w83793_write_value(client, W83793_REG_TEMP_MODE[index], |
| 572 | data->temp_mode[index]); |
| 573 | mutex_unlock(&data->update_lock); |
| 574 | |
| 575 | return count; |
| 576 | } |
| 577 | |
| 578 | #define SETUP_PWM_DEFAULT 0 |
| 579 | #define SETUP_PWM_UPTIME 1 /* Unit in 0.1s */ |
| 580 | #define SETUP_PWM_DOWNTIME 2 /* Unit in 0.1s */ |
| 581 | #define SETUP_TEMP_CRITICAL 3 |
| 582 | static ssize_t |
| 583 | show_sf_setup(struct device *dev, struct device_attribute *attr, char *buf) |
| 584 | { |
| 585 | struct sensor_device_attribute_2 *sensor_attr = |
| 586 | to_sensor_dev_attr_2(attr); |
| 587 | int nr = sensor_attr->nr; |
| 588 | struct w83793_data *data = w83793_update_device(dev); |
| 589 | u32 val = 0; |
| 590 | |
| 591 | if (SETUP_PWM_DEFAULT == nr) { |
| 592 | val = (data->pwm_default & 0x3f) << 2; |
| 593 | } else if (SETUP_PWM_UPTIME == nr) { |
| 594 | val = TIME_FROM_REG(data->pwm_uptime); |
| 595 | } else if (SETUP_PWM_DOWNTIME == nr) { |
| 596 | val = TIME_FROM_REG(data->pwm_downtime); |
| 597 | } else if (SETUP_TEMP_CRITICAL == nr) { |
| 598 | val = TEMP_FROM_REG(data->temp_critical & 0x7f); |
| 599 | } |
| 600 | |
| 601 | return sprintf(buf, "%d\n", val); |
| 602 | } |
| 603 | |
| 604 | static ssize_t |
| 605 | store_sf_setup(struct device *dev, struct device_attribute *attr, |
| 606 | const char *buf, size_t count) |
| 607 | { |
| 608 | struct sensor_device_attribute_2 *sensor_attr = |
| 609 | to_sensor_dev_attr_2(attr); |
| 610 | int nr = sensor_attr->nr; |
| 611 | struct i2c_client *client = to_i2c_client(dev); |
| 612 | struct w83793_data *data = i2c_get_clientdata(client); |
| 613 | |
| 614 | mutex_lock(&data->update_lock); |
| 615 | if (SETUP_PWM_DEFAULT == nr) { |
| 616 | data->pwm_default = |
| 617 | w83793_read_value(client, W83793_REG_PWM_DEFAULT) & 0xc0; |
| 618 | data->pwm_default |= SENSORS_LIMIT(simple_strtoul(buf, NULL, |
| 619 | 10), |
| 620 | 0, 0xff) >> 2; |
| 621 | w83793_write_value(client, W83793_REG_PWM_DEFAULT, |
| 622 | data->pwm_default); |
| 623 | } else if (SETUP_PWM_UPTIME == nr) { |
| 624 | data->pwm_uptime = TIME_TO_REG(simple_strtoul(buf, NULL, 10)); |
| 625 | data->pwm_uptime += data->pwm_uptime == 0 ? 1 : 0; |
| 626 | w83793_write_value(client, W83793_REG_PWM_UPTIME, |
| 627 | data->pwm_uptime); |
| 628 | } else if (SETUP_PWM_DOWNTIME == nr) { |
| 629 | data->pwm_downtime = TIME_TO_REG(simple_strtoul(buf, NULL, 10)); |
| 630 | data->pwm_downtime += data->pwm_downtime == 0 ? 1 : 0; |
| 631 | w83793_write_value(client, W83793_REG_PWM_DOWNTIME, |
| 632 | data->pwm_downtime); |
| 633 | } else { /* SETUP_TEMP_CRITICAL */ |
| 634 | data->temp_critical = |
| 635 | w83793_read_value(client, W83793_REG_TEMP_CRITICAL) & 0x80; |
| 636 | data->temp_critical |= TEMP_TO_REG(simple_strtol(buf, NULL, 10), |
| 637 | 0, 0x7f); |
| 638 | w83793_write_value(client, W83793_REG_TEMP_CRITICAL, |
| 639 | data->temp_critical); |
| 640 | } |
| 641 | |
| 642 | mutex_unlock(&data->update_lock); |
| 643 | return count; |
| 644 | } |
| 645 | |
| 646 | /* |
| 647 | Temp SmartFan control |
| 648 | TEMP_FAN_MAP |
| 649 | Temp channel control which pwm fan, bitfield, bit 0 indicate pwm1... |
| 650 | It's possible two or more temp channels control the same fan, w83793 |
| 651 | always prefers to pick the most critical request and applies it to |
| 652 | the related Fan. |
| 653 | It's possible one fan is not in any mapping of 6 temp channels, this |
| 654 | means the fan is manual mode |
| 655 | |
| 656 | TEMP_PWM_ENABLE |
| 657 | Each temp channel has its own SmartFan mode, and temp channel |
| 658 | control fans that are set by TEMP_FAN_MAP |
| 659 | 0: SmartFanII mode |
| 660 | 1: Thermal Cruise Mode |
| 661 | |
| 662 | TEMP_CRUISE |
| 663 | Target temperature in thermal cruise mode, w83793 will try to turn |
| 664 | fan speed to keep the temperature of target device around this |
| 665 | temperature. |
| 666 | |
| 667 | TEMP_TOLERANCE |
| 668 | If Temp higher or lower than target with this tolerance, w83793 |
| 669 | will take actions to speed up or slow down the fan to keep the |
| 670 | temperature within the tolerance range. |
| 671 | */ |
| 672 | |
| 673 | #define TEMP_FAN_MAP 0 |
| 674 | #define TEMP_PWM_ENABLE 1 |
| 675 | #define TEMP_CRUISE 2 |
| 676 | #define TEMP_TOLERANCE 3 |
| 677 | static ssize_t |
| 678 | show_sf_ctrl(struct device *dev, struct device_attribute *attr, char *buf) |
| 679 | { |
| 680 | struct sensor_device_attribute_2 *sensor_attr = |
| 681 | to_sensor_dev_attr_2(attr); |
| 682 | int nr = sensor_attr->nr; |
| 683 | int index = sensor_attr->index; |
| 684 | struct w83793_data *data = w83793_update_device(dev); |
| 685 | u32 val; |
| 686 | |
| 687 | if (TEMP_FAN_MAP == nr) { |
| 688 | val = data->temp_fan_map[index]; |
| 689 | } else if (TEMP_PWM_ENABLE == nr) { |
| 690 | /* +2 to transfrom into 2 and 3 to conform with sysfs intf */ |
| 691 | val = ((data->pwm_enable >> index) & 0x01) + 2; |
| 692 | } else if (TEMP_CRUISE == nr) { |
| 693 | val = TEMP_FROM_REG(data->temp_cruise[index] & 0x7f); |
| 694 | } else { /* TEMP_TOLERANCE */ |
| 695 | val = data->tolerance[index >> 1] >> ((index & 0x01) ? 4 : 0); |
| 696 | val = TEMP_FROM_REG(val & 0x0f); |
| 697 | } |
| 698 | return sprintf(buf, "%d\n", val); |
| 699 | } |
| 700 | |
| 701 | static ssize_t |
| 702 | store_sf_ctrl(struct device *dev, struct device_attribute *attr, |
| 703 | const char *buf, size_t count) |
| 704 | { |
| 705 | struct sensor_device_attribute_2 *sensor_attr = |
| 706 | to_sensor_dev_attr_2(attr); |
| 707 | int nr = sensor_attr->nr; |
| 708 | int index = sensor_attr->index; |
| 709 | struct i2c_client *client = to_i2c_client(dev); |
| 710 | struct w83793_data *data = i2c_get_clientdata(client); |
| 711 | u32 val; |
| 712 | |
| 713 | mutex_lock(&data->update_lock); |
| 714 | if (TEMP_FAN_MAP == nr) { |
| 715 | val = simple_strtoul(buf, NULL, 10) & 0xff; |
| 716 | w83793_write_value(client, W83793_REG_TEMP_FAN_MAP(index), val); |
| 717 | data->temp_fan_map[index] = val; |
| 718 | } else if (TEMP_PWM_ENABLE == nr) { |
| 719 | val = simple_strtoul(buf, NULL, 10); |
| 720 | if (2 == val || 3 == val) { |
| 721 | data->pwm_enable = |
| 722 | w83793_read_value(client, W83793_REG_PWM_ENABLE); |
| 723 | if (val - 2) |
| 724 | data->pwm_enable |= 1 << index; |
| 725 | else |
| 726 | data->pwm_enable &= ~(1 << index); |
| 727 | w83793_write_value(client, W83793_REG_PWM_ENABLE, |
| 728 | data->pwm_enable); |
| 729 | } else { |
| 730 | mutex_unlock(&data->update_lock); |
| 731 | return -EINVAL; |
| 732 | } |
| 733 | } else if (TEMP_CRUISE == nr) { |
| 734 | data->temp_cruise[index] = |
| 735 | w83793_read_value(client, W83793_REG_TEMP_CRUISE(index)); |
| 736 | val = TEMP_TO_REG(simple_strtol(buf, NULL, 10), 0, 0x7f); |
| 737 | data->temp_cruise[index] &= 0x80; |
| 738 | data->temp_cruise[index] |= val; |
| 739 | |
| 740 | w83793_write_value(client, W83793_REG_TEMP_CRUISE(index), |
| 741 | data->temp_cruise[index]); |
| 742 | } else { /* TEMP_TOLERANCE */ |
| 743 | int i = index >> 1; |
| 744 | u8 shift = (index & 0x01) ? 4 : 0; |
| 745 | data->tolerance[i] = |
| 746 | w83793_read_value(client, W83793_REG_TEMP_TOL(i)); |
| 747 | |
| 748 | val = TEMP_TO_REG(simple_strtol(buf, NULL, 10), 0, 0x0f); |
| 749 | data->tolerance[i] &= ~(0x0f << shift); |
| 750 | data->tolerance[i] |= val << shift; |
| 751 | w83793_write_value(client, W83793_REG_TEMP_TOL(i), |
| 752 | data->tolerance[i]); |
| 753 | } |
| 754 | |
| 755 | mutex_unlock(&data->update_lock); |
| 756 | return count; |
| 757 | } |
| 758 | |
| 759 | static ssize_t |
| 760 | show_sf2_pwm(struct device *dev, struct device_attribute *attr, char *buf) |
| 761 | { |
| 762 | struct sensor_device_attribute_2 *sensor_attr = |
| 763 | to_sensor_dev_attr_2(attr); |
| 764 | int nr = sensor_attr->nr; |
| 765 | int index = sensor_attr->index; |
| 766 | struct w83793_data *data = w83793_update_device(dev); |
| 767 | |
| 768 | return sprintf(buf, "%d\n", (data->sf2_pwm[index][nr] & 0x3f) << 2); |
| 769 | } |
| 770 | |
| 771 | static ssize_t |
| 772 | store_sf2_pwm(struct device *dev, struct device_attribute *attr, |
| 773 | const char *buf, size_t count) |
| 774 | { |
| 775 | struct i2c_client *client = to_i2c_client(dev); |
| 776 | struct w83793_data *data = i2c_get_clientdata(client); |
| 777 | struct sensor_device_attribute_2 *sensor_attr = |
| 778 | to_sensor_dev_attr_2(attr); |
| 779 | int nr = sensor_attr->nr; |
| 780 | int index = sensor_attr->index; |
| 781 | u8 val = SENSORS_LIMIT(simple_strtoul(buf, NULL, 10), 0, 0xff) >> 2; |
| 782 | |
| 783 | mutex_lock(&data->update_lock); |
| 784 | data->sf2_pwm[index][nr] = |
| 785 | w83793_read_value(client, W83793_REG_SF2_PWM(index, nr)) & 0xc0; |
| 786 | data->sf2_pwm[index][nr] |= val; |
| 787 | w83793_write_value(client, W83793_REG_SF2_PWM(index, nr), |
| 788 | data->sf2_pwm[index][nr]); |
| 789 | mutex_unlock(&data->update_lock); |
| 790 | return count; |
| 791 | } |
| 792 | |
| 793 | static ssize_t |
| 794 | show_sf2_temp(struct device *dev, struct device_attribute *attr, char *buf) |
| 795 | { |
| 796 | struct sensor_device_attribute_2 *sensor_attr = |
| 797 | to_sensor_dev_attr_2(attr); |
| 798 | int nr = sensor_attr->nr; |
| 799 | int index = sensor_attr->index; |
| 800 | struct w83793_data *data = w83793_update_device(dev); |
| 801 | |
| 802 | return sprintf(buf, "%ld\n", |
| 803 | TEMP_FROM_REG(data->sf2_temp[index][nr] & 0x7f)); |
| 804 | } |
| 805 | |
| 806 | static ssize_t |
| 807 | store_sf2_temp(struct device *dev, struct device_attribute *attr, |
| 808 | const char *buf, size_t count) |
| 809 | { |
| 810 | struct i2c_client *client = to_i2c_client(dev); |
| 811 | struct w83793_data *data = i2c_get_clientdata(client); |
| 812 | struct sensor_device_attribute_2 *sensor_attr = |
| 813 | to_sensor_dev_attr_2(attr); |
| 814 | int nr = sensor_attr->nr; |
| 815 | int index = sensor_attr->index; |
| 816 | u8 val = TEMP_TO_REG(simple_strtol(buf, NULL, 10), 0, 0x7f); |
| 817 | |
| 818 | mutex_lock(&data->update_lock); |
| 819 | data->sf2_temp[index][nr] = |
| 820 | w83793_read_value(client, W83793_REG_SF2_TEMP(index, nr)) & 0x80; |
| 821 | data->sf2_temp[index][nr] |= val; |
| 822 | w83793_write_value(client, W83793_REG_SF2_TEMP(index, nr), |
| 823 | data->sf2_temp[index][nr]); |
| 824 | mutex_unlock(&data->update_lock); |
| 825 | return count; |
| 826 | } |
| 827 | |
| 828 | /* only Vcore A/B and Vtt have additional 2 bits precision */ |
| 829 | static ssize_t |
| 830 | show_in(struct device *dev, struct device_attribute *attr, char *buf) |
| 831 | { |
| 832 | struct sensor_device_attribute_2 *sensor_attr = |
| 833 | to_sensor_dev_attr_2(attr); |
| 834 | int nr = sensor_attr->nr; |
| 835 | int index = sensor_attr->index; |
| 836 | struct w83793_data *data = w83793_update_device(dev); |
| 837 | u16 val = data->in[index][nr]; |
| 838 | |
| 839 | if (index < 3) { |
| 840 | val <<= 2; |
| 841 | val += (data->in_low_bits[nr] >> (index * 2)) & 0x3; |
| 842 | } |
Gong Jun | ddca933 | 2007-01-18 22:14:23 +0100 | [diff] [blame] | 843 | /* voltage inputs 5VDD and 5VSB needs 150mV offset */ |
| 844 | val = val * scale_in[index] + scale_in_add[index]; |
| 845 | return sprintf(buf, "%d\n", val); |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 846 | } |
| 847 | |
| 848 | static ssize_t |
| 849 | store_in(struct device *dev, struct device_attribute *attr, |
| 850 | const char *buf, size_t count) |
| 851 | { |
| 852 | struct sensor_device_attribute_2 *sensor_attr = |
| 853 | to_sensor_dev_attr_2(attr); |
| 854 | int nr = sensor_attr->nr; |
| 855 | int index = sensor_attr->index; |
| 856 | struct i2c_client *client = to_i2c_client(dev); |
| 857 | struct w83793_data *data = i2c_get_clientdata(client); |
| 858 | u32 val; |
| 859 | |
| 860 | val = |
| 861 | (simple_strtoul(buf, NULL, 10) + |
| 862 | scale_in[index] / 2) / scale_in[index]; |
| 863 | mutex_lock(&data->update_lock); |
| 864 | if (index > 2) { |
Gong Jun | ddca933 | 2007-01-18 22:14:23 +0100 | [diff] [blame] | 865 | /* fix the limit values of 5VDD and 5VSB to ALARM mechanism */ |
| 866 | if (1 == nr || 2 == nr) { |
| 867 | val -= scale_in_add[index] / scale_in[index]; |
| 868 | } |
Rudolf Marek | 6800c3d | 2006-12-12 18:18:30 +0100 | [diff] [blame] | 869 | val = SENSORS_LIMIT(val, 0, 255); |
| 870 | } else { |
| 871 | val = SENSORS_LIMIT(val, 0, 0x3FF); |
| 872 | data->in_low_bits[nr] = |
| 873 | w83793_read_value(client, W83793_REG_IN_LOW_BITS[nr]); |
| 874 | data->in_low_bits[nr] &= ~(0x03 << (2 * index)); |
| 875 | data->in_low_bits[nr] |= (val & 0x03) << (2 * index); |
| 876 | w83793_write_value(client, W83793_REG_IN_LOW_BITS[nr], |
| 877 | data->in_low_bits[nr]); |
| 878 | val >>= 2; |
| 879 | } |
| 880 | data->in[index][nr] = val; |
| 881 | w83793_write_value(client, W83793_REG_IN[index][nr], |
| 882 | data->in[index][nr]); |
| 883 | mutex_unlock(&data->update_lock); |
| 884 | return count; |
| 885 | } |
| 886 | |
| 887 | #define NOT_USED -1 |
| 888 | |
| 889 | #define SENSOR_ATTR_IN(index) \ |
| 890 | SENSOR_ATTR_2(in##index##_input, S_IRUGO, show_in, NULL, \ |
| 891 | IN_READ, index), \ |
| 892 | SENSOR_ATTR_2(in##index##_max, S_IRUGO | S_IWUSR, show_in, \ |
| 893 | store_in, IN_MAX, index), \ |
| 894 | SENSOR_ATTR_2(in##index##_min, S_IRUGO | S_IWUSR, show_in, \ |
| 895 | store_in, IN_LOW, index), \ |
| 896 | SENSOR_ATTR_2(in##index##_alarm, S_IRUGO, show_alarm_beep, \ |
| 897 | NULL, ALARM_STATUS, index + ((index > 2) ? 1 : 0)), \ |
| 898 | SENSOR_ATTR_2(in##index##_beep, S_IWUSR | S_IRUGO, \ |
| 899 | show_alarm_beep, store_beep, BEEP_ENABLE, \ |
| 900 | index + ((index > 2) ? 1 : 0)) |
| 901 | |
| 902 | #define SENSOR_ATTR_FAN(index) \ |
| 903 | SENSOR_ATTR_2(fan##index##_alarm, S_IRUGO, show_alarm_beep, \ |
| 904 | NULL, ALARM_STATUS, index + 17), \ |
| 905 | SENSOR_ATTR_2(fan##index##_beep, S_IWUSR | S_IRUGO, \ |
| 906 | show_alarm_beep, store_beep, BEEP_ENABLE, index + 17), \ |
| 907 | SENSOR_ATTR_2(fan##index##_input, S_IRUGO, show_fan, \ |
| 908 | NULL, FAN_INPUT, index - 1), \ |
| 909 | SENSOR_ATTR_2(fan##index##_min, S_IWUSR | S_IRUGO, \ |
| 910 | show_fan, store_fan_min, FAN_MIN, index - 1) |
| 911 | |
| 912 | #define SENSOR_ATTR_PWM(index) \ |
| 913 | SENSOR_ATTR_2(pwm##index, S_IWUSR | S_IRUGO, show_pwm, \ |
| 914 | store_pwm, PWM_DUTY, index - 1), \ |
| 915 | SENSOR_ATTR_2(pwm##index##_nonstop, S_IWUSR | S_IRUGO, \ |
| 916 | show_pwm, store_pwm, PWM_NONSTOP, index - 1), \ |
| 917 | SENSOR_ATTR_2(pwm##index##_start, S_IWUSR | S_IRUGO, \ |
| 918 | show_pwm, store_pwm, PWM_START, index - 1), \ |
| 919 | SENSOR_ATTR_2(pwm##index##_stop_time, S_IWUSR | S_IRUGO, \ |
| 920 | show_pwm, store_pwm, PWM_STOP_TIME, index - 1) |
| 921 | |
| 922 | #define SENSOR_ATTR_TEMP(index) \ |
| 923 | SENSOR_ATTR_2(temp##index##_type, S_IRUGO | S_IWUSR, \ |
| 924 | show_temp_mode, store_temp_mode, NOT_USED, index - 1), \ |
| 925 | SENSOR_ATTR_2(temp##index##_input, S_IRUGO, show_temp, \ |
| 926 | NULL, TEMP_READ, index - 1), \ |
| 927 | SENSOR_ATTR_2(temp##index##_max, S_IRUGO | S_IWUSR, show_temp, \ |
| 928 | store_temp, TEMP_CRIT, index - 1), \ |
| 929 | SENSOR_ATTR_2(temp##index##_max_hyst, S_IRUGO | S_IWUSR, \ |
| 930 | show_temp, store_temp, TEMP_CRIT_HYST, index - 1), \ |
| 931 | SENSOR_ATTR_2(temp##index##_warn, S_IRUGO | S_IWUSR, show_temp, \ |
| 932 | store_temp, TEMP_WARN, index - 1), \ |
| 933 | SENSOR_ATTR_2(temp##index##_warn_hyst, S_IRUGO | S_IWUSR, \ |
| 934 | show_temp, store_temp, TEMP_WARN_HYST, index - 1), \ |
| 935 | SENSOR_ATTR_2(temp##index##_alarm, S_IRUGO, \ |
| 936 | show_alarm_beep, NULL, ALARM_STATUS, index + 11), \ |
| 937 | SENSOR_ATTR_2(temp##index##_beep, S_IWUSR | S_IRUGO, \ |
| 938 | show_alarm_beep, store_beep, BEEP_ENABLE, index + 11), \ |
| 939 | SENSOR_ATTR_2(temp##index##_auto_channels_pwm, \ |
| 940 | S_IRUGO | S_IWUSR, show_sf_ctrl, store_sf_ctrl, \ |
| 941 | TEMP_FAN_MAP, index - 1), \ |
| 942 | SENSOR_ATTR_2(temp##index##_pwm_enable, S_IWUSR | S_IRUGO, \ |
| 943 | show_sf_ctrl, store_sf_ctrl, TEMP_PWM_ENABLE, \ |
| 944 | index - 1), \ |
| 945 | SENSOR_ATTR_2(thermal_cruise##index, S_IRUGO | S_IWUSR, \ |
| 946 | show_sf_ctrl, store_sf_ctrl, TEMP_CRUISE, index - 1), \ |
| 947 | SENSOR_ATTR_2(tolerance##index, S_IRUGO | S_IWUSR, show_sf_ctrl,\ |
| 948 | store_sf_ctrl, TEMP_TOLERANCE, index - 1), \ |
| 949 | SENSOR_ATTR_2(temp##index##_auto_point1_pwm, S_IRUGO | S_IWUSR, \ |
| 950 | show_sf2_pwm, store_sf2_pwm, 0, index - 1), \ |
| 951 | SENSOR_ATTR_2(temp##index##_auto_point2_pwm, S_IRUGO | S_IWUSR, \ |
| 952 | show_sf2_pwm, store_sf2_pwm, 1, index - 1), \ |
| 953 | SENSOR_ATTR_2(temp##index##_auto_point3_pwm, S_IRUGO | S_IWUSR, \ |
| 954 | show_sf2_pwm, store_sf2_pwm, 2, index - 1), \ |
| 955 | SENSOR_ATTR_2(temp##index##_auto_point4_pwm, S_IRUGO | S_IWUSR, \ |
| 956 | show_sf2_pwm, store_sf2_pwm, 3, index - 1), \ |
| 957 | SENSOR_ATTR_2(temp##index##_auto_point5_pwm, S_IRUGO | S_IWUSR, \ |
| 958 | show_sf2_pwm, store_sf2_pwm, 4, index - 1), \ |
| 959 | SENSOR_ATTR_2(temp##index##_auto_point6_pwm, S_IRUGO | S_IWUSR, \ |
| 960 | show_sf2_pwm, store_sf2_pwm, 5, index - 1), \ |
| 961 | SENSOR_ATTR_2(temp##index##_auto_point7_pwm, S_IRUGO | S_IWUSR, \ |
| 962 | show_sf2_pwm, store_sf2_pwm, 6, index - 1), \ |
| 963 | SENSOR_ATTR_2(temp##index##_auto_point1_temp, S_IRUGO | S_IWUSR,\ |
| 964 | show_sf2_temp, store_sf2_temp, 0, index - 1), \ |
| 965 | SENSOR_ATTR_2(temp##index##_auto_point2_temp, S_IRUGO | S_IWUSR,\ |
| 966 | show_sf2_temp, store_sf2_temp, 1, index - 1), \ |
| 967 | SENSOR_ATTR_2(temp##index##_auto_point3_temp, S_IRUGO | S_IWUSR,\ |
| 968 | show_sf2_temp, store_sf2_temp, 2, index - 1), \ |
| 969 | SENSOR_ATTR_2(temp##index##_auto_point4_temp, S_IRUGO | S_IWUSR,\ |
| 970 | show_sf2_temp, store_sf2_temp, 3, index - 1), \ |
| 971 | SENSOR_ATTR_2(temp##index##_auto_point5_temp, S_IRUGO | S_IWUSR,\ |
| 972 | show_sf2_temp, store_sf2_temp, 4, index - 1), \ |
| 973 | SENSOR_ATTR_2(temp##index##_auto_point6_temp, S_IRUGO | S_IWUSR,\ |
| 974 | show_sf2_temp, store_sf2_temp, 5, index - 1), \ |
| 975 | SENSOR_ATTR_2(temp##index##_auto_point7_temp, S_IRUGO | S_IWUSR,\ |
| 976 | show_sf2_temp, store_sf2_temp, 6, index - 1) |
| 977 | |
| 978 | static struct sensor_device_attribute_2 w83793_sensor_attr_2[] = { |
| 979 | SENSOR_ATTR_IN(0), |
| 980 | SENSOR_ATTR_IN(1), |
| 981 | SENSOR_ATTR_IN(2), |
| 982 | SENSOR_ATTR_IN(3), |
| 983 | SENSOR_ATTR_IN(4), |
| 984 | SENSOR_ATTR_IN(5), |
| 985 | SENSOR_ATTR_IN(6), |
| 986 | SENSOR_ATTR_IN(7), |
| 987 | SENSOR_ATTR_IN(8), |
| 988 | SENSOR_ATTR_IN(9), |
| 989 | SENSOR_ATTR_TEMP(1), |
| 990 | SENSOR_ATTR_TEMP(2), |
| 991 | SENSOR_ATTR_TEMP(3), |
| 992 | SENSOR_ATTR_TEMP(4), |
| 993 | SENSOR_ATTR_TEMP(5), |
| 994 | SENSOR_ATTR_TEMP(6), |
| 995 | SENSOR_ATTR_FAN(1), |
| 996 | SENSOR_ATTR_FAN(2), |
| 997 | SENSOR_ATTR_FAN(3), |
| 998 | SENSOR_ATTR_FAN(4), |
| 999 | SENSOR_ATTR_FAN(5), |
| 1000 | SENSOR_ATTR_PWM(1), |
| 1001 | SENSOR_ATTR_PWM(2), |
| 1002 | SENSOR_ATTR_PWM(3), |
| 1003 | }; |
| 1004 | |
| 1005 | /* Fan6-Fan12 */ |
| 1006 | static struct sensor_device_attribute_2 w83793_left_fan[] = { |
| 1007 | SENSOR_ATTR_FAN(6), |
| 1008 | SENSOR_ATTR_FAN(7), |
| 1009 | SENSOR_ATTR_FAN(8), |
| 1010 | SENSOR_ATTR_FAN(9), |
| 1011 | SENSOR_ATTR_FAN(10), |
| 1012 | SENSOR_ATTR_FAN(11), |
| 1013 | SENSOR_ATTR_FAN(12), |
| 1014 | }; |
| 1015 | |
| 1016 | /* Pwm4-Pwm8 */ |
| 1017 | static struct sensor_device_attribute_2 w83793_left_pwm[] = { |
| 1018 | SENSOR_ATTR_PWM(4), |
| 1019 | SENSOR_ATTR_PWM(5), |
| 1020 | SENSOR_ATTR_PWM(6), |
| 1021 | SENSOR_ATTR_PWM(7), |
| 1022 | SENSOR_ATTR_PWM(8), |
| 1023 | }; |
| 1024 | |
| 1025 | static struct sensor_device_attribute_2 sda_single_files[] = { |
| 1026 | SENSOR_ATTR_2(cpu0_vid, S_IRUGO, show_vid, NULL, NOT_USED, 0), |
| 1027 | SENSOR_ATTR_2(cpu1_vid, S_IRUGO, show_vid, NULL, NOT_USED, 1), |
| 1028 | SENSOR_ATTR_2(vrm, S_IWUSR | S_IRUGO, show_vrm, store_vrm, |
| 1029 | NOT_USED, NOT_USED), |
| 1030 | SENSOR_ATTR_2(chassis, S_IWUSR | S_IRUGO, show_alarm_beep, |
| 1031 | store_chassis_clear, ALARM_STATUS, 30), |
| 1032 | SENSOR_ATTR_2(beep_enable, S_IWUSR | S_IRUGO, show_beep_enable, |
| 1033 | store_beep_enable, NOT_USED, NOT_USED), |
| 1034 | SENSOR_ATTR_2(pwm_default, S_IWUSR | S_IRUGO, show_sf_setup, |
| 1035 | store_sf_setup, SETUP_PWM_DEFAULT, NOT_USED), |
| 1036 | SENSOR_ATTR_2(pwm_uptime, S_IWUSR | S_IRUGO, show_sf_setup, |
| 1037 | store_sf_setup, SETUP_PWM_UPTIME, NOT_USED), |
| 1038 | SENSOR_ATTR_2(pwm_downtime, S_IWUSR | S_IRUGO, show_sf_setup, |
| 1039 | store_sf_setup, SETUP_PWM_DOWNTIME, NOT_USED), |
| 1040 | SENSOR_ATTR_2(temp_critical, S_IWUSR | S_IRUGO, show_sf_setup, |
| 1041 | store_sf_setup, SETUP_TEMP_CRITICAL, NOT_USED), |
| 1042 | }; |
| 1043 | |
| 1044 | static void w83793_init_client(struct i2c_client *client) |
| 1045 | { |
| 1046 | if (reset) { |
| 1047 | w83793_write_value(client, W83793_REG_CONFIG, 0x80); |
| 1048 | } |
| 1049 | |
| 1050 | /* Start monitoring */ |
| 1051 | w83793_write_value(client, W83793_REG_CONFIG, |
| 1052 | w83793_read_value(client, W83793_REG_CONFIG) | 0x01); |
| 1053 | |
| 1054 | } |
| 1055 | |
| 1056 | static int w83793_attach_adapter(struct i2c_adapter *adapter) |
| 1057 | { |
| 1058 | if (!(adapter->class & I2C_CLASS_HWMON)) |
| 1059 | return 0; |
| 1060 | return i2c_probe(adapter, &addr_data, w83793_detect); |
| 1061 | } |
| 1062 | |
| 1063 | static int w83793_detach_client(struct i2c_client *client) |
| 1064 | { |
| 1065 | struct w83793_data *data = i2c_get_clientdata(client); |
| 1066 | struct device *dev = &client->dev; |
| 1067 | int err, i; |
| 1068 | |
| 1069 | /* main client */ |
| 1070 | if (data) { |
| 1071 | hwmon_device_unregister(data->class_dev); |
| 1072 | |
| 1073 | for (i = 0; i < ARRAY_SIZE(w83793_sensor_attr_2); i++) |
| 1074 | device_remove_file(dev, |
| 1075 | &w83793_sensor_attr_2[i].dev_attr); |
| 1076 | |
| 1077 | for (i = 0; i < ARRAY_SIZE(sda_single_files); i++) |
| 1078 | device_remove_file(dev, &sda_single_files[i].dev_attr); |
| 1079 | |
| 1080 | for (i = 0; i < ARRAY_SIZE(w83793_left_fan); i++) |
| 1081 | device_remove_file(dev, &w83793_left_fan[i].dev_attr); |
| 1082 | |
| 1083 | for (i = 0; i < ARRAY_SIZE(w83793_left_pwm); i++) |
| 1084 | device_remove_file(dev, &w83793_left_pwm[i].dev_attr); |
| 1085 | } |
| 1086 | |
| 1087 | if ((err = i2c_detach_client(client))) |
| 1088 | return err; |
| 1089 | |
| 1090 | /* main client */ |
| 1091 | if (data) |
| 1092 | kfree(data); |
| 1093 | /* subclient */ |
| 1094 | else |
| 1095 | kfree(client); |
| 1096 | |
| 1097 | return 0; |
| 1098 | } |
| 1099 | |
| 1100 | static int |
| 1101 | w83793_create_subclient(struct i2c_adapter *adapter, |
| 1102 | struct i2c_client *client, int addr, |
| 1103 | struct i2c_client **sub_cli) |
| 1104 | { |
| 1105 | int err = 0; |
| 1106 | struct i2c_client *sub_client; |
| 1107 | |
| 1108 | (*sub_cli) = sub_client = |
| 1109 | kzalloc(sizeof(struct i2c_client), GFP_KERNEL); |
| 1110 | if (!(sub_client)) { |
| 1111 | return -ENOMEM; |
| 1112 | } |
| 1113 | sub_client->addr = 0x48 + addr; |
| 1114 | i2c_set_clientdata(sub_client, NULL); |
| 1115 | sub_client->adapter = adapter; |
| 1116 | sub_client->driver = &w83793_driver; |
| 1117 | strlcpy(sub_client->name, "w83793 subclient", I2C_NAME_SIZE); |
| 1118 | if ((err = i2c_attach_client(sub_client))) { |
| 1119 | dev_err(&client->dev, "subclient registration " |
| 1120 | "at address 0x%x failed\n", sub_client->addr); |
| 1121 | kfree(sub_client); |
| 1122 | } |
| 1123 | return err; |
| 1124 | } |
| 1125 | |
| 1126 | static int |
| 1127 | w83793_detect_subclients(struct i2c_adapter *adapter, int address, |
| 1128 | int kind, struct i2c_client *client) |
| 1129 | { |
| 1130 | int i, id, err; |
| 1131 | u8 tmp; |
| 1132 | struct w83793_data *data = i2c_get_clientdata(client); |
| 1133 | |
| 1134 | id = i2c_adapter_id(adapter); |
| 1135 | if (force_subclients[0] == id && force_subclients[1] == address) { |
| 1136 | for (i = 2; i <= 3; i++) { |
| 1137 | if (force_subclients[i] < 0x48 |
| 1138 | || force_subclients[i] > 0x4f) { |
| 1139 | dev_err(&client->dev, |
| 1140 | "invalid subclient " |
| 1141 | "address %d; must be 0x48-0x4f\n", |
| 1142 | force_subclients[i]); |
| 1143 | err = -EINVAL; |
| 1144 | goto ERROR_SC_0; |
| 1145 | } |
| 1146 | } |
| 1147 | w83793_write_value(client, W83793_REG_I2C_SUBADDR, |
| 1148 | (force_subclients[2] & 0x07) | |
| 1149 | ((force_subclients[3] & 0x07) << 4)); |
| 1150 | } |
| 1151 | |
| 1152 | tmp = w83793_read_value(client, W83793_REG_I2C_SUBADDR); |
| 1153 | if (!(tmp & 0x08)) { |
| 1154 | err = |
| 1155 | w83793_create_subclient(adapter, client, tmp & 0x7, |
| 1156 | &data->lm75[0]); |
| 1157 | if (err < 0) |
| 1158 | goto ERROR_SC_0; |
| 1159 | } |
| 1160 | if (!(tmp & 0x80)) { |
| 1161 | if ((data->lm75[0] != NULL) |
| 1162 | && ((tmp & 0x7) == ((tmp >> 4) & 0x7))) { |
| 1163 | dev_err(&client->dev, |
| 1164 | "duplicate addresses 0x%x, " |
| 1165 | "use force_subclients\n", data->lm75[0]->addr); |
| 1166 | err = -ENODEV; |
| 1167 | goto ERROR_SC_1; |
| 1168 | } |
| 1169 | err = w83793_create_subclient(adapter, client, |
| 1170 | (tmp >> 4) & 0x7, &data->lm75[1]); |
| 1171 | if (err < 0) |
| 1172 | goto ERROR_SC_1; |
| 1173 | } |
| 1174 | |
| 1175 | return 0; |
| 1176 | |
| 1177 | /* Undo inits in case of errors */ |
| 1178 | |
| 1179 | ERROR_SC_1: |
| 1180 | if (data->lm75[0] != NULL) { |
| 1181 | i2c_detach_client(data->lm75[0]); |
| 1182 | kfree(data->lm75[0]); |
| 1183 | } |
| 1184 | ERROR_SC_0: |
| 1185 | return err; |
| 1186 | } |
| 1187 | |
| 1188 | static int w83793_detect(struct i2c_adapter *adapter, int address, int kind) |
| 1189 | { |
| 1190 | int i; |
| 1191 | u8 tmp, val; |
| 1192 | struct i2c_client *client; |
| 1193 | struct device *dev; |
| 1194 | struct w83793_data *data; |
| 1195 | int files_fan = ARRAY_SIZE(w83793_left_fan) / 7; |
| 1196 | int files_pwm = ARRAY_SIZE(w83793_left_pwm) / 5; |
| 1197 | int err = 0; |
| 1198 | |
| 1199 | if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) { |
| 1200 | goto exit; |
| 1201 | } |
| 1202 | |
| 1203 | /* OK. For now, we presume we have a valid client. We now create the |
| 1204 | client structure, even though we cannot fill it completely yet. |
| 1205 | But it allows us to access w83793_{read,write}_value. */ |
| 1206 | |
| 1207 | if (!(data = kzalloc(sizeof(struct w83793_data), GFP_KERNEL))) { |
| 1208 | err = -ENOMEM; |
| 1209 | goto exit; |
| 1210 | } |
| 1211 | |
| 1212 | client = &data->client; |
| 1213 | dev = &client->dev; |
| 1214 | i2c_set_clientdata(client, data); |
| 1215 | client->addr = address; |
| 1216 | client->adapter = adapter; |
| 1217 | client->driver = &w83793_driver; |
| 1218 | |
| 1219 | data->bank = i2c_smbus_read_byte_data(client, W83793_REG_BANKSEL); |
| 1220 | |
| 1221 | /* Now, we do the remaining detection. */ |
| 1222 | if (kind < 0) { |
| 1223 | tmp = data->bank & 0x80 ? 0x5c : 0xa3; |
| 1224 | /* Check Winbond vendor ID */ |
| 1225 | if (tmp != i2c_smbus_read_byte_data(client, |
| 1226 | W83793_REG_VENDORID)) { |
| 1227 | pr_debug("w83793: Detection failed at check " |
| 1228 | "vendor id\n"); |
| 1229 | err = -ENODEV; |
| 1230 | goto free_mem; |
| 1231 | } |
| 1232 | |
| 1233 | /* If Winbond chip, address of chip and W83793_REG_I2C_ADDR |
| 1234 | should match */ |
| 1235 | if ((data->bank & 0x07) == 0 |
| 1236 | && i2c_smbus_read_byte_data(client, W83793_REG_I2C_ADDR) != |
| 1237 | (address << 1)) { |
| 1238 | pr_debug("w83793: Detection failed at check " |
| 1239 | "i2c addr\n"); |
| 1240 | err = -ENODEV; |
| 1241 | goto free_mem; |
| 1242 | } |
| 1243 | |
| 1244 | } |
| 1245 | |
| 1246 | /* We have either had a force parameter, or we have already detected the |
| 1247 | Winbond. Determine the chip type now */ |
| 1248 | |
| 1249 | if (kind <= 0) { |
| 1250 | if (0x7b == w83793_read_value(client, W83793_REG_CHIPID)) { |
| 1251 | kind = w83793; |
| 1252 | } else { |
| 1253 | if (kind == 0) |
| 1254 | dev_warn(&adapter->dev, "w83793: Ignoring " |
| 1255 | "'force' parameter for unknown chip " |
| 1256 | "at address 0x%02x\n", address); |
| 1257 | err = -ENODEV; |
| 1258 | goto free_mem; |
| 1259 | } |
| 1260 | } |
| 1261 | |
| 1262 | /* Fill in the remaining client fields and put into the global list */ |
| 1263 | strlcpy(client->name, "w83793", I2C_NAME_SIZE); |
| 1264 | |
| 1265 | mutex_init(&data->update_lock); |
| 1266 | |
| 1267 | /* Tell the I2C layer a new client has arrived */ |
| 1268 | if ((err = i2c_attach_client(client))) |
| 1269 | goto free_mem; |
| 1270 | |
| 1271 | if ((err = w83793_detect_subclients(adapter, address, kind, client))) |
| 1272 | goto detach_client; |
| 1273 | |
| 1274 | /* Initialize the chip */ |
| 1275 | w83793_init_client(client); |
| 1276 | |
| 1277 | data->vrm = vid_which_vrm(); |
| 1278 | /* |
| 1279 | Only fan 1-5 has their own input pins, |
| 1280 | Pwm 1-3 has their own pins |
| 1281 | */ |
| 1282 | data->has_fan = 0x1f; |
| 1283 | data->has_pwm = 0x07; |
| 1284 | tmp = w83793_read_value(client, W83793_REG_MFC); |
| 1285 | val = w83793_read_value(client, W83793_REG_FANIN_CTRL); |
| 1286 | |
| 1287 | /* check the function of pins 49-56 */ |
| 1288 | if (!(tmp & 0x80)) { |
| 1289 | data->has_pwm |= 0x18; /* pwm 4,5 */ |
| 1290 | if (val & 0x01) { /* fan 6 */ |
| 1291 | data->has_fan |= 0x20; |
| 1292 | data->has_pwm |= 0x20; |
| 1293 | } |
| 1294 | if (val & 0x02) { /* fan 7 */ |
| 1295 | data->has_fan |= 0x40; |
| 1296 | data->has_pwm |= 0x40; |
| 1297 | } |
| 1298 | if (!(tmp & 0x40) && (val & 0x04)) { /* fan 8 */ |
| 1299 | data->has_fan |= 0x80; |
| 1300 | data->has_pwm |= 0x80; |
| 1301 | } |
| 1302 | } |
| 1303 | |
| 1304 | if (0x08 == (tmp & 0x0c)) { |
| 1305 | if (val & 0x08) /* fan 9 */ |
| 1306 | data->has_fan |= 0x100; |
| 1307 | if (val & 0x10) /* fan 10 */ |
| 1308 | data->has_fan |= 0x200; |
| 1309 | } |
| 1310 | |
| 1311 | if (0x20 == (tmp & 0x30)) { |
| 1312 | if (val & 0x20) /* fan 11 */ |
| 1313 | data->has_fan |= 0x400; |
| 1314 | if (val & 0x40) /* fan 12 */ |
| 1315 | data->has_fan |= 0x800; |
| 1316 | } |
| 1317 | |
| 1318 | if ((tmp & 0x01) && (val & 0x04)) { /* fan 8, second location */ |
| 1319 | data->has_fan |= 0x80; |
| 1320 | data->has_pwm |= 0x80; |
| 1321 | } |
| 1322 | |
| 1323 | /* Register sysfs hooks */ |
| 1324 | for (i = 0; i < ARRAY_SIZE(w83793_sensor_attr_2); i++) { |
| 1325 | err = device_create_file(dev, |
| 1326 | &w83793_sensor_attr_2[i].dev_attr); |
| 1327 | if (err) |
| 1328 | goto exit_remove; |
| 1329 | } |
| 1330 | |
| 1331 | for (i = 0; i < ARRAY_SIZE(sda_single_files); i++) { |
| 1332 | err = device_create_file(dev, &sda_single_files[i].dev_attr); |
| 1333 | if (err) |
| 1334 | goto exit_remove; |
| 1335 | |
| 1336 | } |
| 1337 | |
| 1338 | for (i = 5; i < 12; i++) { |
| 1339 | int j; |
| 1340 | if (!(data->has_fan & (1 << i))) |
| 1341 | continue; |
| 1342 | for (j = 0; j < files_fan; j++) { |
| 1343 | err = device_create_file(dev, |
| 1344 | &w83793_left_fan[(i - 5) * files_fan |
| 1345 | + j].dev_attr); |
| 1346 | if (err) |
| 1347 | goto exit_remove; |
| 1348 | } |
| 1349 | } |
| 1350 | |
| 1351 | for (i = 3; i < 8; i++) { |
| 1352 | int j; |
| 1353 | if (!(data->has_pwm & (1 << i))) |
| 1354 | continue; |
| 1355 | for (j = 0; j < files_pwm; j++) { |
| 1356 | err = device_create_file(dev, |
| 1357 | &w83793_left_pwm[(i - 3) * files_pwm |
| 1358 | + j].dev_attr); |
| 1359 | if (err) |
| 1360 | goto exit_remove; |
| 1361 | } |
| 1362 | } |
| 1363 | |
| 1364 | data->class_dev = hwmon_device_register(dev); |
| 1365 | if (IS_ERR(data->class_dev)) { |
| 1366 | err = PTR_ERR(data->class_dev); |
| 1367 | goto exit_remove; |
| 1368 | } |
| 1369 | |
| 1370 | return 0; |
| 1371 | |
| 1372 | /* Unregister sysfs hooks */ |
| 1373 | |
| 1374 | exit_remove: |
| 1375 | for (i = 0; i < ARRAY_SIZE(w83793_sensor_attr_2); i++) |
| 1376 | device_remove_file(dev, &w83793_sensor_attr_2[i].dev_attr); |
| 1377 | |
| 1378 | for (i = 0; i < ARRAY_SIZE(sda_single_files); i++) |
| 1379 | device_remove_file(dev, &sda_single_files[i].dev_attr); |
| 1380 | |
| 1381 | for (i = 0; i < ARRAY_SIZE(w83793_left_fan); i++) |
| 1382 | device_remove_file(dev, &w83793_left_fan[i].dev_attr); |
| 1383 | |
| 1384 | for (i = 0; i < ARRAY_SIZE(w83793_left_pwm); i++) |
| 1385 | device_remove_file(dev, &w83793_left_pwm[i].dev_attr); |
| 1386 | |
| 1387 | if (data->lm75[0] != NULL) { |
| 1388 | i2c_detach_client(data->lm75[0]); |
| 1389 | kfree(data->lm75[0]); |
| 1390 | } |
| 1391 | if (data->lm75[1] != NULL) { |
| 1392 | i2c_detach_client(data->lm75[1]); |
| 1393 | kfree(data->lm75[1]); |
| 1394 | } |
| 1395 | detach_client: |
| 1396 | i2c_detach_client(client); |
| 1397 | free_mem: |
| 1398 | kfree(data); |
| 1399 | exit: |
| 1400 | return err; |
| 1401 | } |
| 1402 | |
| 1403 | static void w83793_update_nonvolatile(struct device *dev) |
| 1404 | { |
| 1405 | struct i2c_client *client = to_i2c_client(dev); |
| 1406 | struct w83793_data *data = i2c_get_clientdata(client); |
| 1407 | int i, j; |
| 1408 | /* |
| 1409 | They are somewhat "stable" registers, and to update them everytime |
| 1410 | takes so much time, it's just not worthy. Update them in a long |
| 1411 | interval to avoid exception. |
| 1412 | */ |
| 1413 | if (!(time_after(jiffies, data->last_nonvolatile + HZ * 300) |
| 1414 | || !data->valid)) |
| 1415 | return; |
| 1416 | /* update voltage limits */ |
| 1417 | for (i = 1; i < 3; i++) { |
| 1418 | for (j = 0; j < ARRAY_SIZE(data->in); j++) { |
| 1419 | data->in[j][i] = |
| 1420 | w83793_read_value(client, W83793_REG_IN[j][i]); |
| 1421 | } |
| 1422 | data->in_low_bits[i] = |
| 1423 | w83793_read_value(client, W83793_REG_IN_LOW_BITS[i]); |
| 1424 | } |
| 1425 | |
| 1426 | for (i = 0; i < ARRAY_SIZE(data->fan_min); i++) { |
| 1427 | /* Update the Fan measured value and limits */ |
| 1428 | if (!(data->has_fan & (1 << i))) { |
| 1429 | continue; |
| 1430 | } |
| 1431 | data->fan_min[i] = |
| 1432 | w83793_read_value(client, W83793_REG_FAN_MIN(i)) << 8; |
| 1433 | data->fan_min[i] |= |
| 1434 | w83793_read_value(client, W83793_REG_FAN_MIN(i) + 1); |
| 1435 | } |
| 1436 | |
| 1437 | for (i = 0; i < ARRAY_SIZE(data->temp_fan_map); i++) { |
| 1438 | data->temp_fan_map[i] = |
| 1439 | w83793_read_value(client, W83793_REG_TEMP_FAN_MAP(i)); |
| 1440 | for (j = 1; j < 5; j++) { |
| 1441 | data->temp[i][j] = |
| 1442 | w83793_read_value(client, W83793_REG_TEMP[i][j]); |
| 1443 | } |
| 1444 | data->temp_cruise[i] = |
| 1445 | w83793_read_value(client, W83793_REG_TEMP_CRUISE(i)); |
| 1446 | for (j = 0; j < 7; j++) { |
| 1447 | data->sf2_pwm[i][j] = |
| 1448 | w83793_read_value(client, W83793_REG_SF2_PWM(i, j)); |
| 1449 | data->sf2_temp[i][j] = |
| 1450 | w83793_read_value(client, |
| 1451 | W83793_REG_SF2_TEMP(i, j)); |
| 1452 | } |
| 1453 | } |
| 1454 | |
| 1455 | for (i = 0; i < ARRAY_SIZE(data->temp_mode); i++) |
| 1456 | data->temp_mode[i] = |
| 1457 | w83793_read_value(client, W83793_REG_TEMP_MODE[i]); |
| 1458 | |
| 1459 | for (i = 0; i < ARRAY_SIZE(data->tolerance); i++) { |
| 1460 | data->tolerance[i] = |
| 1461 | w83793_read_value(client, W83793_REG_TEMP_TOL(i)); |
| 1462 | } |
| 1463 | |
| 1464 | for (i = 0; i < ARRAY_SIZE(data->pwm); i++) { |
| 1465 | if (!(data->has_pwm & (1 << i))) |
| 1466 | continue; |
| 1467 | data->pwm[i][PWM_NONSTOP] = |
| 1468 | w83793_read_value(client, W83793_REG_PWM(i, PWM_NONSTOP)); |
| 1469 | data->pwm[i][PWM_START] = |
| 1470 | w83793_read_value(client, W83793_REG_PWM(i, PWM_START)); |
| 1471 | data->pwm_stop_time[i] = |
| 1472 | w83793_read_value(client, W83793_REG_PWM_STOP_TIME(i)); |
| 1473 | } |
| 1474 | |
| 1475 | data->pwm_default = w83793_read_value(client, W83793_REG_PWM_DEFAULT); |
| 1476 | data->pwm_enable = w83793_read_value(client, W83793_REG_PWM_ENABLE); |
| 1477 | data->pwm_uptime = w83793_read_value(client, W83793_REG_PWM_UPTIME); |
| 1478 | data->pwm_downtime = w83793_read_value(client, W83793_REG_PWM_DOWNTIME); |
| 1479 | data->temp_critical = |
| 1480 | w83793_read_value(client, W83793_REG_TEMP_CRITICAL); |
| 1481 | data->beep_enable = w83793_read_value(client, W83793_REG_OVT_BEEP); |
| 1482 | |
| 1483 | for (i = 0; i < ARRAY_SIZE(data->beeps); i++) { |
| 1484 | data->beeps[i] = w83793_read_value(client, W83793_REG_BEEP(i)); |
| 1485 | } |
| 1486 | |
| 1487 | data->last_nonvolatile = jiffies; |
| 1488 | } |
| 1489 | |
| 1490 | static struct w83793_data *w83793_update_device(struct device *dev) |
| 1491 | { |
| 1492 | struct i2c_client *client = to_i2c_client(dev); |
| 1493 | struct w83793_data *data = i2c_get_clientdata(client); |
| 1494 | int i; |
| 1495 | |
| 1496 | mutex_lock(&data->update_lock); |
| 1497 | |
| 1498 | if (!(time_after(jiffies, data->last_updated + HZ * 2) |
| 1499 | || !data->valid)) |
| 1500 | goto END; |
| 1501 | |
| 1502 | /* Update the voltages measured value and limits */ |
| 1503 | for (i = 0; i < ARRAY_SIZE(data->in); i++) |
| 1504 | data->in[i][IN_READ] = |
| 1505 | w83793_read_value(client, W83793_REG_IN[i][IN_READ]); |
| 1506 | |
| 1507 | data->in_low_bits[IN_READ] = |
| 1508 | w83793_read_value(client, W83793_REG_IN_LOW_BITS[IN_READ]); |
| 1509 | |
| 1510 | for (i = 0; i < ARRAY_SIZE(data->fan); i++) { |
| 1511 | if (!(data->has_fan & (1 << i))) { |
| 1512 | continue; |
| 1513 | } |
| 1514 | data->fan[i] = |
| 1515 | w83793_read_value(client, W83793_REG_FAN(i)) << 8; |
| 1516 | data->fan[i] |= |
| 1517 | w83793_read_value(client, W83793_REG_FAN(i) + 1); |
| 1518 | } |
| 1519 | |
| 1520 | for (i = 0; i < ARRAY_SIZE(data->temp); i++) |
| 1521 | data->temp[i][TEMP_READ] = |
| 1522 | w83793_read_value(client, W83793_REG_TEMP[i][TEMP_READ]); |
| 1523 | |
| 1524 | data->temp_low_bits = |
| 1525 | w83793_read_value(client, W83793_REG_TEMP_LOW_BITS); |
| 1526 | |
| 1527 | for (i = 0; i < ARRAY_SIZE(data->pwm); i++) { |
| 1528 | if (data->has_pwm & (1 << i)) |
| 1529 | data->pwm[i][PWM_DUTY] = |
| 1530 | w83793_read_value(client, |
| 1531 | W83793_REG_PWM(i, PWM_DUTY)); |
| 1532 | } |
| 1533 | |
| 1534 | for (i = 0; i < ARRAY_SIZE(data->alarms); i++) |
| 1535 | data->alarms[i] = |
| 1536 | w83793_read_value(client, W83793_REG_ALARM(i)); |
| 1537 | data->vid[0] = w83793_read_value(client, W83793_REG_VID_INA); |
| 1538 | data->vid[1] = w83793_read_value(client, W83793_REG_VID_INB); |
| 1539 | w83793_update_nonvolatile(dev); |
| 1540 | data->last_updated = jiffies; |
| 1541 | data->valid = 1; |
| 1542 | |
| 1543 | END: |
| 1544 | mutex_unlock(&data->update_lock); |
| 1545 | return data; |
| 1546 | } |
| 1547 | |
| 1548 | /* Ignore the possibility that somebody change bank outside the driver |
| 1549 | Must be called with data->update_lock held, except during initialization */ |
| 1550 | static u8 w83793_read_value(struct i2c_client *client, u16 reg) |
| 1551 | { |
| 1552 | struct w83793_data *data = i2c_get_clientdata(client); |
| 1553 | u8 res = 0xff; |
| 1554 | u8 new_bank = reg >> 8; |
| 1555 | |
| 1556 | new_bank |= data->bank & 0xfc; |
| 1557 | if (data->bank != new_bank) { |
| 1558 | if (i2c_smbus_write_byte_data |
| 1559 | (client, W83793_REG_BANKSEL, new_bank) >= 0) |
| 1560 | data->bank = new_bank; |
| 1561 | else { |
| 1562 | dev_err(&client->dev, |
| 1563 | "set bank to %d failed, fall back " |
| 1564 | "to bank %d, read reg 0x%x error\n", |
| 1565 | new_bank, data->bank, reg); |
| 1566 | res = 0x0; /* read 0x0 from the chip */ |
| 1567 | goto END; |
| 1568 | } |
| 1569 | } |
| 1570 | res = i2c_smbus_read_byte_data(client, reg & 0xff); |
| 1571 | END: |
| 1572 | return res; |
| 1573 | } |
| 1574 | |
| 1575 | /* Must be called with data->update_lock held, except during initialization */ |
| 1576 | static int w83793_write_value(struct i2c_client *client, u16 reg, u8 value) |
| 1577 | { |
| 1578 | struct w83793_data *data = i2c_get_clientdata(client); |
| 1579 | int res; |
| 1580 | u8 new_bank = reg >> 8; |
| 1581 | |
| 1582 | new_bank |= data->bank & 0xfc; |
| 1583 | if (data->bank != new_bank) { |
| 1584 | if ((res = i2c_smbus_write_byte_data |
| 1585 | (client, W83793_REG_BANKSEL, new_bank)) >= 0) |
| 1586 | data->bank = new_bank; |
| 1587 | else { |
| 1588 | dev_err(&client->dev, |
| 1589 | "set bank to %d failed, fall back " |
| 1590 | "to bank %d, write reg 0x%x error\n", |
| 1591 | new_bank, data->bank, reg); |
| 1592 | goto END; |
| 1593 | } |
| 1594 | } |
| 1595 | |
| 1596 | res = i2c_smbus_write_byte_data(client, reg & 0xff, value); |
| 1597 | END: |
| 1598 | return res; |
| 1599 | } |
| 1600 | |
| 1601 | static int __init sensors_w83793_init(void) |
| 1602 | { |
| 1603 | return i2c_add_driver(&w83793_driver); |
| 1604 | } |
| 1605 | |
| 1606 | static void __exit sensors_w83793_exit(void) |
| 1607 | { |
| 1608 | i2c_del_driver(&w83793_driver); |
| 1609 | } |
| 1610 | |
| 1611 | MODULE_AUTHOR("Yuan Mu"); |
| 1612 | MODULE_DESCRIPTION("w83793 driver"); |
| 1613 | MODULE_LICENSE("GPL"); |
| 1614 | |
| 1615 | module_init(sensors_w83793_init); |
| 1616 | module_exit(sensors_w83793_exit); |