Riku Voipio | 84f1e44 | 2007-08-24 13:03:09 +0300 | [diff] [blame] | 1 | /* |
| 2 | * f75375s.c - driver for the Fintek F75375/SP and F75373 |
| 3 | * hardware monitoring features |
| 4 | * Copyright (C) 2006-2007 Riku Voipio <riku.voipio@movial.fi> |
| 5 | * |
| 6 | * Datasheets available at: |
| 7 | * |
| 8 | * f75375: |
| 9 | * http://www.fintek.com.tw/files/productfiles/2005111152950.pdf |
| 10 | * |
| 11 | * f75373: |
| 12 | * http://www.fintek.com.tw/files/productfiles/2005111153128.pdf |
| 13 | * |
| 14 | * This program is free software; you can redistribute it and/or modify |
| 15 | * it under the terms of the GNU General Public License as published by |
| 16 | * the Free Software Foundation; either version 2 of the License, or |
| 17 | * (at your option) any later version. |
| 18 | * |
| 19 | * This program is distributed in the hope that it will be useful, |
| 20 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 21 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 22 | * GNU General Public License for more details. |
| 23 | * |
| 24 | * You should have received a copy of the GNU General Public License |
| 25 | * along with this program; if not, write to the Free Software |
| 26 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 27 | * |
| 28 | */ |
| 29 | |
| 30 | #include <linux/module.h> |
| 31 | #include <linux/jiffies.h> |
| 32 | #include <linux/hwmon.h> |
| 33 | #include <linux/hwmon-sysfs.h> |
| 34 | #include <linux/i2c.h> |
| 35 | #include <linux/err.h> |
| 36 | #include <linux/mutex.h> |
Riku Voipio | ff312d0 | 2007-09-26 13:14:40 +0300 | [diff] [blame] | 37 | #include <linux/f75375s.h> |
Riku Voipio | 84f1e44 | 2007-08-24 13:03:09 +0300 | [diff] [blame] | 38 | |
| 39 | /* Addresses to scan */ |
| 40 | static unsigned short normal_i2c[] = { 0x2d, 0x2e, I2C_CLIENT_END }; |
| 41 | |
| 42 | /* Insmod parameters */ |
| 43 | I2C_CLIENT_INSMOD_2(f75373, f75375); |
| 44 | |
| 45 | /* Fintek F75375 registers */ |
| 46 | #define F75375_REG_CONFIG0 0x0 |
| 47 | #define F75375_REG_CONFIG1 0x1 |
| 48 | #define F75375_REG_CONFIG2 0x2 |
| 49 | #define F75375_REG_CONFIG3 0x3 |
| 50 | #define F75375_REG_ADDR 0x4 |
| 51 | #define F75375_REG_INTR 0x31 |
| 52 | #define F75375_CHIP_ID 0x5A |
| 53 | #define F75375_REG_VERSION 0x5C |
| 54 | #define F75375_REG_VENDOR 0x5D |
| 55 | #define F75375_REG_FAN_TIMER 0x60 |
| 56 | |
| 57 | #define F75375_REG_VOLT(nr) (0x10 + (nr)) |
| 58 | #define F75375_REG_VOLT_HIGH(nr) (0x20 + (nr) * 2) |
| 59 | #define F75375_REG_VOLT_LOW(nr) (0x21 + (nr) * 2) |
| 60 | |
| 61 | #define F75375_REG_TEMP(nr) (0x14 + (nr)) |
| 62 | #define F75375_REG_TEMP_HIGH(nr) (0x28 + (nr) * 2) |
| 63 | #define F75375_REG_TEMP_HYST(nr) (0x29 + (nr) * 2) |
| 64 | |
| 65 | #define F75375_REG_FAN(nr) (0x16 + (nr) * 2) |
| 66 | #define F75375_REG_FAN_MIN(nr) (0x2C + (nr) * 2) |
| 67 | #define F75375_REG_FAN_FULL(nr) (0x70 + (nr) * 0x10) |
| 68 | #define F75375_REG_FAN_PWM_DUTY(nr) (0x76 + (nr) * 0x10) |
| 69 | #define F75375_REG_FAN_PWM_CLOCK(nr) (0x7D + (nr) * 0x10) |
| 70 | |
| 71 | #define F75375_REG_FAN_EXP(nr) (0x74 + (nr) * 0x10) |
| 72 | #define F75375_REG_FAN_B_TEMP(nr, step) ((0xA0 + (nr) * 0x10) + (step)) |
| 73 | #define F75375_REG_FAN_B_SPEED(nr, step) \ |
| 74 | ((0xA5 + (nr) * 0x10) + (step) * 2) |
| 75 | |
| 76 | #define F75375_REG_PWM1_RAISE_DUTY 0x69 |
| 77 | #define F75375_REG_PWM2_RAISE_DUTY 0x6A |
| 78 | #define F75375_REG_PWM1_DROP_DUTY 0x6B |
| 79 | #define F75375_REG_PWM2_DROP_DUTY 0x6C |
| 80 | |
| 81 | #define FAN_CTRL_LINEAR(nr) (4 + nr) |
| 82 | #define FAN_CTRL_MODE(nr) (5 + ((nr) * 2)) |
| 83 | |
| 84 | /* |
| 85 | * Data structures and manipulation thereof |
| 86 | */ |
| 87 | |
| 88 | struct f75375_data { |
| 89 | unsigned short addr; |
Riku Voipio | 620c142 | 2007-10-16 12:46:49 +0300 | [diff] [blame] | 90 | struct i2c_client *client; |
Tony Jones | 1beeffe | 2007-08-20 13:46:20 -0700 | [diff] [blame] | 91 | struct device *hwmon_dev; |
Riku Voipio | 84f1e44 | 2007-08-24 13:03:09 +0300 | [diff] [blame] | 92 | |
| 93 | const char *name; |
| 94 | int kind; |
| 95 | struct mutex update_lock; /* protect register access */ |
| 96 | char valid; |
| 97 | unsigned long last_updated; /* In jiffies */ |
| 98 | unsigned long last_limits; /* In jiffies */ |
| 99 | |
| 100 | /* Register values */ |
| 101 | u8 in[4]; |
| 102 | u8 in_max[4]; |
| 103 | u8 in_min[4]; |
| 104 | u16 fan[2]; |
| 105 | u16 fan_min[2]; |
| 106 | u16 fan_full[2]; |
| 107 | u16 fan_exp[2]; |
| 108 | u8 fan_timer; |
| 109 | u8 pwm[2]; |
| 110 | u8 pwm_mode[2]; |
| 111 | u8 pwm_enable[2]; |
| 112 | s8 temp[2]; |
| 113 | s8 temp_high[2]; |
| 114 | s8 temp_max_hyst[2]; |
| 115 | }; |
| 116 | |
| 117 | static int f75375_attach_adapter(struct i2c_adapter *adapter); |
| 118 | static int f75375_detect(struct i2c_adapter *adapter, int address, int kind); |
| 119 | static int f75375_detach_client(struct i2c_client *client); |
Riku Voipio | 620c142 | 2007-10-16 12:46:49 +0300 | [diff] [blame] | 120 | static int f75375_probe(struct i2c_client *client); |
| 121 | static int f75375_remove(struct i2c_client *client); |
| 122 | |
| 123 | static struct i2c_driver f75375_legacy_driver = { |
| 124 | .driver = { |
| 125 | .name = "f75375_legacy", |
| 126 | }, |
| 127 | .attach_adapter = f75375_attach_adapter, |
| 128 | .detach_client = f75375_detach_client, |
| 129 | }; |
Riku Voipio | 84f1e44 | 2007-08-24 13:03:09 +0300 | [diff] [blame] | 130 | |
| 131 | static struct i2c_driver f75375_driver = { |
| 132 | .driver = { |
| 133 | .name = "f75375", |
| 134 | }, |
Riku Voipio | 620c142 | 2007-10-16 12:46:49 +0300 | [diff] [blame] | 135 | .probe = f75375_probe, |
| 136 | .remove = f75375_remove, |
Riku Voipio | 84f1e44 | 2007-08-24 13:03:09 +0300 | [diff] [blame] | 137 | }; |
| 138 | |
| 139 | static inline int f75375_read8(struct i2c_client *client, u8 reg) |
| 140 | { |
| 141 | return i2c_smbus_read_byte_data(client, reg); |
| 142 | } |
| 143 | |
| 144 | /* in most cases, should be called while holding update_lock */ |
| 145 | static inline u16 f75375_read16(struct i2c_client *client, u8 reg) |
| 146 | { |
| 147 | return ((i2c_smbus_read_byte_data(client, reg) << 8) |
| 148 | | i2c_smbus_read_byte_data(client, reg + 1)); |
| 149 | } |
| 150 | |
| 151 | static inline void f75375_write8(struct i2c_client *client, u8 reg, |
| 152 | u8 value) |
| 153 | { |
| 154 | i2c_smbus_write_byte_data(client, reg, value); |
| 155 | } |
| 156 | |
| 157 | static inline void f75375_write16(struct i2c_client *client, u8 reg, |
| 158 | u16 value) |
| 159 | { |
| 160 | int err = i2c_smbus_write_byte_data(client, reg, (value << 8)); |
| 161 | if (err) |
| 162 | return; |
| 163 | i2c_smbus_write_byte_data(client, reg + 1, (value & 0xFF)); |
| 164 | } |
| 165 | |
| 166 | static struct f75375_data *f75375_update_device(struct device *dev) |
| 167 | { |
| 168 | struct i2c_client *client = to_i2c_client(dev); |
| 169 | struct f75375_data *data = i2c_get_clientdata(client); |
| 170 | int nr; |
| 171 | |
| 172 | mutex_lock(&data->update_lock); |
| 173 | |
| 174 | /* Limit registers cache is refreshed after 60 seconds */ |
| 175 | if (time_after(jiffies, data->last_limits + 60 * HZ) |
| 176 | || !data->valid) { |
| 177 | for (nr = 0; nr < 2; nr++) { |
| 178 | data->temp_high[nr] = |
| 179 | f75375_read8(client, F75375_REG_TEMP_HIGH(nr)); |
| 180 | data->temp_max_hyst[nr] = |
| 181 | f75375_read8(client, F75375_REG_TEMP_HYST(nr)); |
| 182 | data->fan_full[nr] = |
| 183 | f75375_read16(client, F75375_REG_FAN_FULL(nr)); |
| 184 | data->fan_min[nr] = |
| 185 | f75375_read16(client, F75375_REG_FAN_MIN(nr)); |
| 186 | data->fan_exp[nr] = |
| 187 | f75375_read16(client, F75375_REG_FAN_EXP(nr)); |
| 188 | data->pwm[nr] = f75375_read8(client, |
| 189 | F75375_REG_FAN_PWM_DUTY(nr)); |
| 190 | |
| 191 | } |
| 192 | for (nr = 0; nr < 4; nr++) { |
| 193 | data->in_max[nr] = |
| 194 | f75375_read8(client, F75375_REG_VOLT_HIGH(nr)); |
| 195 | data->in_min[nr] = |
| 196 | f75375_read8(client, F75375_REG_VOLT_LOW(nr)); |
| 197 | } |
| 198 | data->fan_timer = f75375_read8(client, F75375_REG_FAN_TIMER); |
| 199 | data->last_limits = jiffies; |
| 200 | } |
| 201 | |
| 202 | /* Measurement registers cache is refreshed after 2 second */ |
| 203 | if (time_after(jiffies, data->last_updated + 2 * HZ) |
| 204 | || !data->valid) { |
| 205 | for (nr = 0; nr < 2; nr++) { |
| 206 | data->temp[nr] = |
| 207 | f75375_read8(client, F75375_REG_TEMP(nr)); |
| 208 | data->fan[nr] = |
| 209 | f75375_read16(client, F75375_REG_FAN(nr)); |
| 210 | } |
| 211 | for (nr = 0; nr < 4; nr++) |
| 212 | data->in[nr] = |
| 213 | f75375_read8(client, F75375_REG_VOLT(nr)); |
| 214 | |
| 215 | data->last_updated = jiffies; |
| 216 | data->valid = 1; |
| 217 | } |
| 218 | |
| 219 | mutex_unlock(&data->update_lock); |
| 220 | return data; |
| 221 | } |
| 222 | |
| 223 | static inline u16 rpm_from_reg(u16 reg) |
| 224 | { |
| 225 | if (reg == 0 || reg == 0xffff) |
| 226 | return 0; |
| 227 | return (1500000 / reg); |
| 228 | } |
| 229 | |
| 230 | static inline u16 rpm_to_reg(int rpm) |
| 231 | { |
| 232 | if (rpm < 367 || rpm > 0xffff) |
| 233 | return 0xffff; |
| 234 | return (1500000 / rpm); |
| 235 | } |
| 236 | |
| 237 | static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr, |
| 238 | const char *buf, size_t count) |
| 239 | { |
| 240 | int nr = to_sensor_dev_attr(attr)->index; |
| 241 | struct i2c_client *client = to_i2c_client(dev); |
| 242 | struct f75375_data *data = i2c_get_clientdata(client); |
| 243 | int val = simple_strtoul(buf, NULL, 10); |
| 244 | |
| 245 | mutex_lock(&data->update_lock); |
| 246 | data->fan_min[nr] = rpm_to_reg(val); |
| 247 | f75375_write16(client, F75375_REG_FAN_MIN(nr), data->fan_min[nr]); |
| 248 | mutex_unlock(&data->update_lock); |
| 249 | return count; |
| 250 | } |
| 251 | |
| 252 | static ssize_t set_fan_exp(struct device *dev, struct device_attribute *attr, |
| 253 | const char *buf, size_t count) |
| 254 | { |
| 255 | int nr = to_sensor_dev_attr(attr)->index; |
| 256 | struct i2c_client *client = to_i2c_client(dev); |
| 257 | struct f75375_data *data = i2c_get_clientdata(client); |
| 258 | int val = simple_strtoul(buf, NULL, 10); |
| 259 | |
| 260 | mutex_lock(&data->update_lock); |
| 261 | data->fan_exp[nr] = rpm_to_reg(val); |
| 262 | f75375_write16(client, F75375_REG_FAN_EXP(nr), data->fan_exp[nr]); |
| 263 | mutex_unlock(&data->update_lock); |
| 264 | return count; |
| 265 | } |
| 266 | |
| 267 | static ssize_t set_pwm(struct device *dev, struct device_attribute *attr, |
| 268 | const char *buf, size_t count) |
| 269 | { |
| 270 | int nr = to_sensor_dev_attr(attr)->index; |
| 271 | struct i2c_client *client = to_i2c_client(dev); |
| 272 | struct f75375_data *data = i2c_get_clientdata(client); |
| 273 | int val = simple_strtoul(buf, NULL, 10); |
| 274 | |
| 275 | mutex_lock(&data->update_lock); |
| 276 | data->pwm[nr] = SENSORS_LIMIT(val, 0, 255); |
| 277 | f75375_write8(client, F75375_REG_FAN_PWM_DUTY(nr), data->pwm[nr]); |
| 278 | mutex_unlock(&data->update_lock); |
| 279 | return count; |
| 280 | } |
| 281 | |
| 282 | static ssize_t show_pwm_enable(struct device *dev, struct device_attribute |
| 283 | *attr, char *buf) |
| 284 | { |
| 285 | int nr = to_sensor_dev_attr(attr)->index; |
| 286 | struct f75375_data *data = f75375_update_device(dev); |
| 287 | return sprintf(buf, "%d\n", data->pwm_enable[nr]); |
| 288 | } |
| 289 | |
Riku Voipio | ff312d0 | 2007-09-26 13:14:40 +0300 | [diff] [blame] | 290 | static int set_pwm_enable_direct(struct i2c_client *client, int nr, int val) |
Riku Voipio | 84f1e44 | 2007-08-24 13:03:09 +0300 | [diff] [blame] | 291 | { |
Riku Voipio | 84f1e44 | 2007-08-24 13:03:09 +0300 | [diff] [blame] | 292 | struct f75375_data *data = i2c_get_clientdata(client); |
Riku Voipio | 84f1e44 | 2007-08-24 13:03:09 +0300 | [diff] [blame] | 293 | u8 fanmode; |
| 294 | |
| 295 | if (val < 0 || val > 4) |
| 296 | return -EINVAL; |
| 297 | |
Riku Voipio | 84f1e44 | 2007-08-24 13:03:09 +0300 | [diff] [blame] | 298 | fanmode = f75375_read8(client, F75375_REG_FAN_TIMER); |
| 299 | fanmode = ~(3 << FAN_CTRL_MODE(nr)); |
| 300 | |
| 301 | switch (val) { |
| 302 | case 0: /* Full speed */ |
| 303 | fanmode |= (3 << FAN_CTRL_MODE(nr)); |
| 304 | data->pwm[nr] = 255; |
| 305 | f75375_write8(client, F75375_REG_FAN_PWM_DUTY(nr), |
| 306 | data->pwm[nr]); |
| 307 | break; |
| 308 | case 1: /* PWM */ |
| 309 | fanmode |= (3 << FAN_CTRL_MODE(nr)); |
| 310 | break; |
| 311 | case 2: /* AUTOMATIC*/ |
| 312 | fanmode |= (2 << FAN_CTRL_MODE(nr)); |
| 313 | break; |
| 314 | case 3: /* fan speed */ |
| 315 | break; |
| 316 | } |
| 317 | f75375_write8(client, F75375_REG_FAN_TIMER, fanmode); |
| 318 | data->pwm_enable[nr] = val; |
Riku Voipio | ff312d0 | 2007-09-26 13:14:40 +0300 | [diff] [blame] | 319 | return 0; |
| 320 | } |
| 321 | |
| 322 | static ssize_t set_pwm_enable(struct device *dev, struct device_attribute *attr, |
| 323 | const char *buf, size_t count) |
| 324 | { |
| 325 | int nr = to_sensor_dev_attr(attr)->index; |
| 326 | struct i2c_client *client = to_i2c_client(dev); |
| 327 | struct f75375_data *data = i2c_get_clientdata(client); |
| 328 | int val = simple_strtoul(buf, NULL, 10); |
| 329 | int err = 0; |
| 330 | |
| 331 | mutex_lock(&data->update_lock); |
| 332 | err = set_pwm_enable_direct(client, nr, val); |
Riku Voipio | 84f1e44 | 2007-08-24 13:03:09 +0300 | [diff] [blame] | 333 | mutex_unlock(&data->update_lock); |
Riku Voipio | ff312d0 | 2007-09-26 13:14:40 +0300 | [diff] [blame] | 334 | return err ? err : count; |
Riku Voipio | 84f1e44 | 2007-08-24 13:03:09 +0300 | [diff] [blame] | 335 | } |
| 336 | |
| 337 | static ssize_t set_pwm_mode(struct device *dev, struct device_attribute *attr, |
| 338 | const char *buf, size_t count) |
| 339 | { |
| 340 | int nr = to_sensor_dev_attr(attr)->index; |
| 341 | struct i2c_client *client = to_i2c_client(dev); |
| 342 | struct f75375_data *data = i2c_get_clientdata(client); |
| 343 | int val = simple_strtoul(buf, NULL, 10); |
| 344 | u8 conf = 0; |
| 345 | |
Riku Voipio | 76e83be | 2007-10-26 14:14:23 +0300 | [diff] [blame] | 346 | if (!(val == 0 || val == 1)) |
Riku Voipio | 84f1e44 | 2007-08-24 13:03:09 +0300 | [diff] [blame] | 347 | return -EINVAL; |
| 348 | |
| 349 | mutex_lock(&data->update_lock); |
| 350 | conf = f75375_read8(client, F75375_REG_CONFIG1); |
| 351 | conf = ~(1 << FAN_CTRL_LINEAR(nr)); |
| 352 | |
| 353 | if (val == 0) |
| 354 | conf |= (1 << FAN_CTRL_LINEAR(nr)) ; |
| 355 | |
| 356 | f75375_write8(client, F75375_REG_CONFIG1, conf); |
| 357 | data->pwm_mode[nr] = val; |
| 358 | mutex_unlock(&data->update_lock); |
| 359 | return count; |
| 360 | } |
| 361 | |
| 362 | static ssize_t show_pwm(struct device *dev, struct device_attribute |
| 363 | *attr, char *buf) |
| 364 | { |
| 365 | int nr = to_sensor_dev_attr(attr)->index; |
| 366 | struct f75375_data *data = f75375_update_device(dev); |
| 367 | return sprintf(buf, "%d\n", data->pwm[nr]); |
| 368 | } |
| 369 | |
| 370 | static ssize_t show_pwm_mode(struct device *dev, struct device_attribute |
| 371 | *attr, char *buf) |
| 372 | { |
| 373 | int nr = to_sensor_dev_attr(attr)->index; |
| 374 | struct f75375_data *data = f75375_update_device(dev); |
| 375 | return sprintf(buf, "%d\n", data->pwm_mode[nr]); |
| 376 | } |
| 377 | |
| 378 | #define VOLT_FROM_REG(val) ((val) * 8) |
| 379 | #define VOLT_TO_REG(val) ((val) / 8) |
| 380 | |
| 381 | static ssize_t show_in(struct device *dev, struct device_attribute *attr, |
| 382 | char *buf) |
| 383 | { |
| 384 | int nr = to_sensor_dev_attr(attr)->index; |
| 385 | struct f75375_data *data = f75375_update_device(dev); |
| 386 | return sprintf(buf, "%d\n", VOLT_FROM_REG(data->in[nr])); |
| 387 | } |
| 388 | |
| 389 | static ssize_t show_in_max(struct device *dev, struct device_attribute *attr, |
| 390 | char *buf) |
| 391 | { |
| 392 | int nr = to_sensor_dev_attr(attr)->index; |
| 393 | struct f75375_data *data = f75375_update_device(dev); |
| 394 | return sprintf(buf, "%d\n", VOLT_FROM_REG(data->in_max[nr])); |
| 395 | } |
| 396 | |
| 397 | static ssize_t show_in_min(struct device *dev, struct device_attribute *attr, |
| 398 | char *buf) |
| 399 | { |
| 400 | int nr = to_sensor_dev_attr(attr)->index; |
| 401 | struct f75375_data *data = f75375_update_device(dev); |
| 402 | return sprintf(buf, "%d\n", VOLT_FROM_REG(data->in_min[nr])); |
| 403 | } |
| 404 | |
| 405 | static ssize_t set_in_max(struct device *dev, struct device_attribute *attr, |
| 406 | const char *buf, size_t count) |
| 407 | { |
| 408 | int nr = to_sensor_dev_attr(attr)->index; |
| 409 | struct i2c_client *client = to_i2c_client(dev); |
| 410 | struct f75375_data *data = i2c_get_clientdata(client); |
| 411 | int val = simple_strtoul(buf, NULL, 10); |
| 412 | val = SENSORS_LIMIT(VOLT_TO_REG(val), 0, 0xff); |
| 413 | mutex_lock(&data->update_lock); |
| 414 | data->in_max[nr] = val; |
| 415 | f75375_write8(client, F75375_REG_VOLT_HIGH(nr), data->in_max[nr]); |
| 416 | mutex_unlock(&data->update_lock); |
| 417 | return count; |
| 418 | } |
| 419 | |
| 420 | static ssize_t set_in_min(struct device *dev, struct device_attribute *attr, |
| 421 | const char *buf, size_t count) |
| 422 | { |
| 423 | int nr = to_sensor_dev_attr(attr)->index; |
| 424 | struct i2c_client *client = to_i2c_client(dev); |
| 425 | struct f75375_data *data = i2c_get_clientdata(client); |
| 426 | int val = simple_strtoul(buf, NULL, 10); |
| 427 | val = SENSORS_LIMIT(VOLT_TO_REG(val), 0, 0xff); |
| 428 | mutex_lock(&data->update_lock); |
| 429 | data->in_min[nr] = val; |
| 430 | f75375_write8(client, F75375_REG_VOLT_LOW(nr), data->in_min[nr]); |
| 431 | mutex_unlock(&data->update_lock); |
| 432 | return count; |
| 433 | } |
| 434 | #define TEMP_FROM_REG(val) ((val) * 1000) |
| 435 | #define TEMP_TO_REG(val) ((val) / 1000) |
| 436 | |
| 437 | static ssize_t show_temp(struct device *dev, struct device_attribute *attr, |
| 438 | char *buf) |
| 439 | { |
| 440 | int nr = to_sensor_dev_attr(attr)->index; |
| 441 | struct f75375_data *data = f75375_update_device(dev); |
| 442 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[nr])); |
| 443 | } |
| 444 | |
| 445 | static ssize_t show_temp_max(struct device *dev, struct device_attribute *attr, |
| 446 | char *buf) |
| 447 | { |
| 448 | int nr = to_sensor_dev_attr(attr)->index; |
| 449 | struct f75375_data *data = f75375_update_device(dev); |
| 450 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_high[nr])); |
| 451 | } |
| 452 | |
| 453 | static ssize_t show_temp_max_hyst(struct device *dev, |
| 454 | struct device_attribute *attr, char *buf) |
| 455 | { |
| 456 | int nr = to_sensor_dev_attr(attr)->index; |
| 457 | struct f75375_data *data = f75375_update_device(dev); |
| 458 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max_hyst[nr])); |
| 459 | } |
| 460 | |
| 461 | static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr, |
| 462 | const char *buf, size_t count) |
| 463 | { |
| 464 | int nr = to_sensor_dev_attr(attr)->index; |
| 465 | struct i2c_client *client = to_i2c_client(dev); |
| 466 | struct f75375_data *data = i2c_get_clientdata(client); |
| 467 | int val = simple_strtol(buf, NULL, 10); |
| 468 | val = SENSORS_LIMIT(TEMP_TO_REG(val), 0, 127); |
| 469 | mutex_lock(&data->update_lock); |
| 470 | data->temp_high[nr] = val; |
| 471 | f75375_write8(client, F75375_REG_TEMP_HIGH(nr), data->temp_high[nr]); |
| 472 | mutex_unlock(&data->update_lock); |
| 473 | return count; |
| 474 | } |
| 475 | |
| 476 | static ssize_t set_temp_max_hyst(struct device *dev, |
| 477 | struct device_attribute *attr, const char *buf, size_t count) |
| 478 | { |
| 479 | int nr = to_sensor_dev_attr(attr)->index; |
| 480 | struct i2c_client *client = to_i2c_client(dev); |
| 481 | struct f75375_data *data = i2c_get_clientdata(client); |
| 482 | int val = simple_strtol(buf, NULL, 10); |
| 483 | val = SENSORS_LIMIT(TEMP_TO_REG(val), 0, 127); |
| 484 | mutex_lock(&data->update_lock); |
| 485 | data->temp_max_hyst[nr] = val; |
| 486 | f75375_write8(client, F75375_REG_TEMP_HYST(nr), |
| 487 | data->temp_max_hyst[nr]); |
| 488 | mutex_unlock(&data->update_lock); |
| 489 | return count; |
| 490 | } |
| 491 | |
| 492 | #define show_fan(thing) \ |
| 493 | static ssize_t show_##thing(struct device *dev, struct device_attribute *attr, \ |
| 494 | char *buf)\ |
| 495 | {\ |
| 496 | int nr = to_sensor_dev_attr(attr)->index;\ |
| 497 | struct f75375_data *data = f75375_update_device(dev); \ |
| 498 | return sprintf(buf, "%d\n", rpm_from_reg(data->thing[nr])); \ |
| 499 | } |
| 500 | |
| 501 | show_fan(fan); |
| 502 | show_fan(fan_min); |
| 503 | show_fan(fan_full); |
| 504 | show_fan(fan_exp); |
| 505 | |
| 506 | static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, show_in, NULL, 0); |
| 507 | static SENSOR_DEVICE_ATTR(in0_max, S_IRUGO|S_IWUSR, |
| 508 | show_in_max, set_in_max, 0); |
| 509 | static SENSOR_DEVICE_ATTR(in0_min, S_IRUGO|S_IWUSR, |
| 510 | show_in_min, set_in_min, 0); |
| 511 | static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_in, NULL, 1); |
| 512 | static SENSOR_DEVICE_ATTR(in1_max, S_IRUGO|S_IWUSR, |
| 513 | show_in_max, set_in_max, 1); |
| 514 | static SENSOR_DEVICE_ATTR(in1_min, S_IRUGO|S_IWUSR, |
| 515 | show_in_min, set_in_min, 1); |
| 516 | static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_in, NULL, 2); |
| 517 | static SENSOR_DEVICE_ATTR(in2_max, S_IRUGO|S_IWUSR, |
| 518 | show_in_max, set_in_max, 2); |
| 519 | static SENSOR_DEVICE_ATTR(in2_min, S_IRUGO|S_IWUSR, |
| 520 | show_in_min, set_in_min, 2); |
| 521 | static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_in, NULL, 3); |
| 522 | static SENSOR_DEVICE_ATTR(in3_max, S_IRUGO|S_IWUSR, |
| 523 | show_in_max, set_in_max, 3); |
| 524 | static SENSOR_DEVICE_ATTR(in3_min, S_IRUGO|S_IWUSR, |
| 525 | show_in_min, set_in_min, 3); |
| 526 | static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0); |
| 527 | static SENSOR_DEVICE_ATTR(temp1_max_hyst, S_IRUGO|S_IWUSR, |
| 528 | show_temp_max_hyst, set_temp_max_hyst, 0); |
| 529 | static SENSOR_DEVICE_ATTR(temp1_max, S_IRUGO|S_IWUSR, |
| 530 | show_temp_max, set_temp_max, 0); |
| 531 | static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 1); |
| 532 | static SENSOR_DEVICE_ATTR(temp2_max_hyst, S_IRUGO|S_IWUSR, |
| 533 | show_temp_max_hyst, set_temp_max_hyst, 1); |
| 534 | static SENSOR_DEVICE_ATTR(temp2_max, S_IRUGO|S_IWUSR, |
| 535 | show_temp_max, set_temp_max, 1); |
| 536 | static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0); |
| 537 | static SENSOR_DEVICE_ATTR(fan1_full, S_IRUGO, show_fan_full, NULL, 0); |
| 538 | static SENSOR_DEVICE_ATTR(fan1_min, S_IRUGO|S_IWUSR, |
| 539 | show_fan_min, set_fan_min, 0); |
| 540 | static SENSOR_DEVICE_ATTR(fan1_exp, S_IRUGO|S_IWUSR, |
| 541 | show_fan_exp, set_fan_exp, 0); |
| 542 | static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1); |
| 543 | static SENSOR_DEVICE_ATTR(fan2_full, S_IRUGO, show_fan_full, NULL, 1); |
| 544 | static SENSOR_DEVICE_ATTR(fan2_min, S_IRUGO|S_IWUSR, |
| 545 | show_fan_min, set_fan_min, 1); |
| 546 | static SENSOR_DEVICE_ATTR(fan2_exp, S_IRUGO|S_IWUSR, |
| 547 | show_fan_exp, set_fan_exp, 1); |
| 548 | static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO|S_IWUSR, |
| 549 | show_pwm, set_pwm, 0); |
| 550 | static SENSOR_DEVICE_ATTR(pwm1_enable, S_IRUGO|S_IWUSR, |
| 551 | show_pwm_enable, set_pwm_enable, 0); |
Riku Voipio | 76e83be | 2007-10-26 14:14:23 +0300 | [diff] [blame] | 552 | static SENSOR_DEVICE_ATTR(pwm1_mode, S_IRUGO, |
Riku Voipio | 84f1e44 | 2007-08-24 13:03:09 +0300 | [diff] [blame] | 553 | show_pwm_mode, set_pwm_mode, 0); |
| 554 | static SENSOR_DEVICE_ATTR(pwm2, S_IRUGO | S_IWUSR, |
| 555 | show_pwm, set_pwm, 1); |
| 556 | static SENSOR_DEVICE_ATTR(pwm2_enable, S_IRUGO|S_IWUSR, |
| 557 | show_pwm_enable, set_pwm_enable, 1); |
Riku Voipio | 76e83be | 2007-10-26 14:14:23 +0300 | [diff] [blame] | 558 | static SENSOR_DEVICE_ATTR(pwm2_mode, S_IRUGO, |
Riku Voipio | 84f1e44 | 2007-08-24 13:03:09 +0300 | [diff] [blame] | 559 | show_pwm_mode, set_pwm_mode, 1); |
| 560 | |
| 561 | static struct attribute *f75375_attributes[] = { |
| 562 | &sensor_dev_attr_temp1_input.dev_attr.attr, |
| 563 | &sensor_dev_attr_temp1_max.dev_attr.attr, |
| 564 | &sensor_dev_attr_temp1_max_hyst.dev_attr.attr, |
| 565 | &sensor_dev_attr_temp2_input.dev_attr.attr, |
| 566 | &sensor_dev_attr_temp2_max.dev_attr.attr, |
| 567 | &sensor_dev_attr_temp2_max_hyst.dev_attr.attr, |
| 568 | &sensor_dev_attr_fan1_input.dev_attr.attr, |
| 569 | &sensor_dev_attr_fan1_full.dev_attr.attr, |
| 570 | &sensor_dev_attr_fan1_min.dev_attr.attr, |
| 571 | &sensor_dev_attr_fan1_exp.dev_attr.attr, |
| 572 | &sensor_dev_attr_fan2_input.dev_attr.attr, |
| 573 | &sensor_dev_attr_fan2_full.dev_attr.attr, |
| 574 | &sensor_dev_attr_fan2_min.dev_attr.attr, |
| 575 | &sensor_dev_attr_fan2_exp.dev_attr.attr, |
| 576 | &sensor_dev_attr_pwm1.dev_attr.attr, |
| 577 | &sensor_dev_attr_pwm1_enable.dev_attr.attr, |
| 578 | &sensor_dev_attr_pwm1_mode.dev_attr.attr, |
| 579 | &sensor_dev_attr_pwm2.dev_attr.attr, |
| 580 | &sensor_dev_attr_pwm2_enable.dev_attr.attr, |
| 581 | &sensor_dev_attr_pwm2_mode.dev_attr.attr, |
| 582 | &sensor_dev_attr_in0_input.dev_attr.attr, |
| 583 | &sensor_dev_attr_in0_max.dev_attr.attr, |
| 584 | &sensor_dev_attr_in0_min.dev_attr.attr, |
| 585 | &sensor_dev_attr_in1_input.dev_attr.attr, |
| 586 | &sensor_dev_attr_in1_max.dev_attr.attr, |
| 587 | &sensor_dev_attr_in1_min.dev_attr.attr, |
| 588 | &sensor_dev_attr_in2_input.dev_attr.attr, |
| 589 | &sensor_dev_attr_in2_max.dev_attr.attr, |
| 590 | &sensor_dev_attr_in2_min.dev_attr.attr, |
| 591 | &sensor_dev_attr_in3_input.dev_attr.attr, |
| 592 | &sensor_dev_attr_in3_max.dev_attr.attr, |
| 593 | &sensor_dev_attr_in3_min.dev_attr.attr, |
| 594 | NULL |
| 595 | }; |
| 596 | |
| 597 | static const struct attribute_group f75375_group = { |
| 598 | .attrs = f75375_attributes, |
| 599 | }; |
| 600 | |
| 601 | static int f75375_detach_client(struct i2c_client *client) |
| 602 | { |
Riku Voipio | 84f1e44 | 2007-08-24 13:03:09 +0300 | [diff] [blame] | 603 | int err; |
| 604 | |
Riku Voipio | 620c142 | 2007-10-16 12:46:49 +0300 | [diff] [blame] | 605 | f75375_remove(client); |
Riku Voipio | 84f1e44 | 2007-08-24 13:03:09 +0300 | [diff] [blame] | 606 | err = i2c_detach_client(client); |
| 607 | if (err) { |
| 608 | dev_err(&client->dev, |
| 609 | "Client deregistration failed, " |
| 610 | "client not detached.\n"); |
| 611 | return err; |
| 612 | } |
Riku Voipio | 620c142 | 2007-10-16 12:46:49 +0300 | [diff] [blame] | 613 | kfree(client); |
| 614 | return 0; |
| 615 | } |
| 616 | |
Riku Voipio | ff312d0 | 2007-09-26 13:14:40 +0300 | [diff] [blame] | 617 | static void f75375_init(struct i2c_client *client, struct f75375_data *data, |
| 618 | struct f75375s_platform_data *f75375s_pdata) |
| 619 | { |
| 620 | int nr; |
| 621 | set_pwm_enable_direct(client, 0, f75375s_pdata->pwm_enable[0]); |
| 622 | set_pwm_enable_direct(client, 1, f75375s_pdata->pwm_enable[1]); |
| 623 | for (nr = 0; nr < 2; nr++) { |
| 624 | data->pwm[nr] = SENSORS_LIMIT(f75375s_pdata->pwm[nr], 0, 255); |
| 625 | f75375_write8(client, F75375_REG_FAN_PWM_DUTY(nr), |
| 626 | data->pwm[nr]); |
| 627 | } |
| 628 | |
| 629 | } |
| 630 | |
Riku Voipio | 620c142 | 2007-10-16 12:46:49 +0300 | [diff] [blame] | 631 | static int f75375_probe(struct i2c_client *client) |
| 632 | { |
| 633 | struct f75375_data *data = i2c_get_clientdata(client); |
Riku Voipio | ff312d0 | 2007-09-26 13:14:40 +0300 | [diff] [blame] | 634 | struct f75375s_platform_data *f75375s_pdata = client->dev.platform_data; |
Riku Voipio | 620c142 | 2007-10-16 12:46:49 +0300 | [diff] [blame] | 635 | int err; |
| 636 | |
| 637 | if (!i2c_check_functionality(client->adapter, |
| 638 | I2C_FUNC_SMBUS_BYTE_DATA)) |
| 639 | return -EIO; |
| 640 | if (!(data = kzalloc(sizeof(struct f75375_data), GFP_KERNEL))) |
| 641 | return -ENOMEM; |
| 642 | |
| 643 | i2c_set_clientdata(client, data); |
| 644 | data->client = client; |
| 645 | mutex_init(&data->update_lock); |
| 646 | |
| 647 | if (strcmp(client->name, "f75375") == 0) |
| 648 | data->kind = f75375; |
| 649 | else if (strcmp(client->name, "f75373") == 0) |
| 650 | data->kind = f75373; |
| 651 | else { |
| 652 | dev_err(&client->dev, "Unsupported device: %s\n", client->name); |
| 653 | return -ENODEV; |
| 654 | } |
| 655 | |
| 656 | if ((err = sysfs_create_group(&client->dev.kobj, &f75375_group))) |
| 657 | goto exit_free; |
| 658 | |
Riku Voipio | 76e83be | 2007-10-26 14:14:23 +0300 | [diff] [blame] | 659 | if (data->kind == f75375) { |
| 660 | err = sysfs_chmod_file(&client->dev.kobj, |
| 661 | &sensor_dev_attr_pwm1_mode.dev_attr.attr, |
| 662 | S_IRUGO | S_IWUSR); |
| 663 | if (err) |
| 664 | goto exit_remove; |
| 665 | err = sysfs_chmod_file(&client->dev.kobj, |
| 666 | &sensor_dev_attr_pwm2_mode.dev_attr.attr, |
| 667 | S_IRUGO | S_IWUSR); |
| 668 | if (err) |
| 669 | goto exit_remove; |
| 670 | } |
| 671 | |
Riku Voipio | 620c142 | 2007-10-16 12:46:49 +0300 | [diff] [blame] | 672 | data->hwmon_dev = hwmon_device_register(&client->dev); |
| 673 | if (IS_ERR(data->hwmon_dev)) { |
| 674 | err = PTR_ERR(data->hwmon_dev); |
| 675 | goto exit_remove; |
| 676 | } |
| 677 | |
Riku Voipio | ff312d0 | 2007-09-26 13:14:40 +0300 | [diff] [blame] | 678 | if (f75375s_pdata != NULL) |
| 679 | f75375_init(client, data, f75375s_pdata); |
| 680 | |
Riku Voipio | 620c142 | 2007-10-16 12:46:49 +0300 | [diff] [blame] | 681 | return 0; |
| 682 | |
| 683 | exit_remove: |
| 684 | sysfs_remove_group(&client->dev.kobj, &f75375_group); |
| 685 | exit_free: |
Riku Voipio | 84f1e44 | 2007-08-24 13:03:09 +0300 | [diff] [blame] | 686 | kfree(data); |
Riku Voipio | 620c142 | 2007-10-16 12:46:49 +0300 | [diff] [blame] | 687 | i2c_set_clientdata(client, NULL); |
| 688 | return err; |
| 689 | } |
| 690 | |
| 691 | static int f75375_remove(struct i2c_client *client) |
| 692 | { |
| 693 | struct f75375_data *data = i2c_get_clientdata(client); |
| 694 | hwmon_device_unregister(data->hwmon_dev); |
| 695 | sysfs_remove_group(&client->dev.kobj, &f75375_group); |
| 696 | kfree(data); |
| 697 | i2c_set_clientdata(client, NULL); |
Riku Voipio | 84f1e44 | 2007-08-24 13:03:09 +0300 | [diff] [blame] | 698 | return 0; |
| 699 | } |
| 700 | |
| 701 | static int f75375_attach_adapter(struct i2c_adapter *adapter) |
| 702 | { |
| 703 | if (!(adapter->class & I2C_CLASS_HWMON)) |
| 704 | return 0; |
| 705 | return i2c_probe(adapter, &addr_data, f75375_detect); |
| 706 | } |
| 707 | |
| 708 | /* This function is called by i2c_probe */ |
| 709 | static int f75375_detect(struct i2c_adapter *adapter, int address, int kind) |
| 710 | { |
| 711 | struct i2c_client *client; |
Riku Voipio | 84f1e44 | 2007-08-24 13:03:09 +0300 | [diff] [blame] | 712 | u8 version = 0; |
| 713 | int err = 0; |
| 714 | const char *name = ""; |
| 715 | |
Riku Voipio | 620c142 | 2007-10-16 12:46:49 +0300 | [diff] [blame] | 716 | if (!(client = kzalloc(sizeof(*client), GFP_KERNEL))) { |
Riku Voipio | 84f1e44 | 2007-08-24 13:03:09 +0300 | [diff] [blame] | 717 | err = -ENOMEM; |
| 718 | goto exit; |
| 719 | } |
Riku Voipio | 84f1e44 | 2007-08-24 13:03:09 +0300 | [diff] [blame] | 720 | client->addr = address; |
| 721 | client->adapter = adapter; |
Riku Voipio | 620c142 | 2007-10-16 12:46:49 +0300 | [diff] [blame] | 722 | client->driver = &f75375_legacy_driver; |
Riku Voipio | 84f1e44 | 2007-08-24 13:03:09 +0300 | [diff] [blame] | 723 | |
| 724 | if (kind < 0) { |
| 725 | u16 vendid = f75375_read16(client, F75375_REG_VENDOR); |
| 726 | u16 chipid = f75375_read16(client, F75375_CHIP_ID); |
| 727 | version = f75375_read8(client, F75375_REG_VERSION); |
| 728 | if (chipid == 0x0306 && vendid == 0x1934) { |
| 729 | kind = f75375; |
| 730 | } else if (chipid == 0x0204 && vendid == 0x1934) { |
| 731 | kind = f75373; |
| 732 | } else { |
| 733 | dev_err(&adapter->dev, |
| 734 | "failed,%02X,%02X,%02X\n", |
| 735 | chipid, version, vendid); |
| 736 | goto exit_free; |
| 737 | } |
| 738 | } |
| 739 | |
| 740 | if (kind == f75375) { |
| 741 | name = "f75375"; |
| 742 | } else if (kind == f75373) { |
| 743 | name = "f75373"; |
| 744 | } |
Riku Voipio | 84f1e44 | 2007-08-24 13:03:09 +0300 | [diff] [blame] | 745 | dev_info(&adapter->dev, "found %s version: %02X\n", name, version); |
| 746 | strlcpy(client->name, name, I2C_NAME_SIZE); |
Riku Voipio | 620c142 | 2007-10-16 12:46:49 +0300 | [diff] [blame] | 747 | |
Riku Voipio | 84f1e44 | 2007-08-24 13:03:09 +0300 | [diff] [blame] | 748 | if ((err = i2c_attach_client(client))) |
| 749 | goto exit_free; |
| 750 | |
Riku Voipio | 620c142 | 2007-10-16 12:46:49 +0300 | [diff] [blame] | 751 | if ((err = f75375_probe(client)) < 0) |
Riku Voipio | 84f1e44 | 2007-08-24 13:03:09 +0300 | [diff] [blame] | 752 | goto exit_detach; |
| 753 | |
Riku Voipio | 84f1e44 | 2007-08-24 13:03:09 +0300 | [diff] [blame] | 754 | return 0; |
| 755 | |
Riku Voipio | 84f1e44 | 2007-08-24 13:03:09 +0300 | [diff] [blame] | 756 | exit_detach: |
| 757 | i2c_detach_client(client); |
| 758 | exit_free: |
Riku Voipio | 620c142 | 2007-10-16 12:46:49 +0300 | [diff] [blame] | 759 | kfree(client); |
Riku Voipio | 84f1e44 | 2007-08-24 13:03:09 +0300 | [diff] [blame] | 760 | exit: |
| 761 | return err; |
| 762 | } |
| 763 | |
| 764 | static int __init sensors_f75375_init(void) |
| 765 | { |
Riku Voipio | 620c142 | 2007-10-16 12:46:49 +0300 | [diff] [blame] | 766 | int status; |
| 767 | status = i2c_add_driver(&f75375_driver); |
| 768 | if (status) |
| 769 | return status; |
| 770 | |
| 771 | status = i2c_add_driver(&f75375_legacy_driver); |
| 772 | if (status) |
| 773 | i2c_del_driver(&f75375_driver); |
| 774 | |
| 775 | return status; |
Riku Voipio | 84f1e44 | 2007-08-24 13:03:09 +0300 | [diff] [blame] | 776 | } |
| 777 | |
| 778 | static void __exit sensors_f75375_exit(void) |
| 779 | { |
Riku Voipio | 620c142 | 2007-10-16 12:46:49 +0300 | [diff] [blame] | 780 | i2c_del_driver(&f75375_legacy_driver); |
Riku Voipio | 84f1e44 | 2007-08-24 13:03:09 +0300 | [diff] [blame] | 781 | i2c_del_driver(&f75375_driver); |
| 782 | } |
| 783 | |
| 784 | MODULE_AUTHOR("Riku Voipio <riku.voipio@movial.fi>"); |
| 785 | MODULE_LICENSE("GPL"); |
| 786 | MODULE_DESCRIPTION("F75373/F75375 hardware monitoring driver"); |
| 787 | |
| 788 | module_init(sensors_f75375_init); |
| 789 | module_exit(sensors_f75375_exit); |