George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 1 | /* |
| 2 | * asc7621.c - Part of lm_sensors, Linux kernel modules for hardware monitoring |
| 3 | * Copyright (c) 2007, 2010 George Joseph <george.joseph@fairview5.com> |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify |
| 6 | * it under the terms of the GNU General Public License as published by |
| 7 | * the Free Software Foundation; either version 2 of the License, or |
| 8 | * (at your option) any later version. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License |
| 16 | * along with this program; if not, write to the Free Software |
| 17 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 18 | */ |
| 19 | |
| 20 | #include <linux/module.h> |
| 21 | #include <linux/init.h> |
| 22 | #include <linux/slab.h> |
| 23 | #include <linux/jiffies.h> |
| 24 | #include <linux/i2c.h> |
| 25 | #include <linux/hwmon.h> |
| 26 | #include <linux/hwmon-sysfs.h> |
| 27 | #include <linux/err.h> |
| 28 | #include <linux/mutex.h> |
| 29 | |
| 30 | /* Addresses to scan */ |
Jean Delvare | 918ee91 | 2010-10-28 20:31:50 +0200 | [diff] [blame] | 31 | static const unsigned short normal_i2c[] = { |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 32 | 0x2c, 0x2d, 0x2e, I2C_CLIENT_END |
| 33 | }; |
| 34 | |
| 35 | enum asc7621_type { |
| 36 | asc7621, |
| 37 | asc7621a |
| 38 | }; |
| 39 | |
| 40 | #define INTERVAL_HIGH (HZ + HZ / 2) |
| 41 | #define INTERVAL_LOW (1 * 60 * HZ) |
| 42 | #define PRI_NONE 0 |
| 43 | #define PRI_LOW 1 |
| 44 | #define PRI_HIGH 2 |
| 45 | #define FIRST_CHIP asc7621 |
| 46 | #define LAST_CHIP asc7621a |
| 47 | |
| 48 | struct asc7621_chip { |
| 49 | char *name; |
| 50 | enum asc7621_type chip_type; |
| 51 | u8 company_reg; |
| 52 | u8 company_id; |
| 53 | u8 verstep_reg; |
| 54 | u8 verstep_id; |
Jean Delvare | 918ee91 | 2010-10-28 20:31:50 +0200 | [diff] [blame] | 55 | const unsigned short *addresses; |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 56 | }; |
| 57 | |
| 58 | static struct asc7621_chip asc7621_chips[] = { |
| 59 | { |
| 60 | .name = "asc7621", |
| 61 | .chip_type = asc7621, |
| 62 | .company_reg = 0x3e, |
| 63 | .company_id = 0x61, |
| 64 | .verstep_reg = 0x3f, |
| 65 | .verstep_id = 0x6c, |
| 66 | .addresses = normal_i2c, |
| 67 | }, |
| 68 | { |
| 69 | .name = "asc7621a", |
| 70 | .chip_type = asc7621a, |
| 71 | .company_reg = 0x3e, |
| 72 | .company_id = 0x61, |
| 73 | .verstep_reg = 0x3f, |
| 74 | .verstep_id = 0x6d, |
| 75 | .addresses = normal_i2c, |
| 76 | }, |
| 77 | }; |
| 78 | |
| 79 | /* |
| 80 | * Defines the highest register to be used, not the count. |
| 81 | * The actual count will probably be smaller because of gaps |
| 82 | * in the implementation (unused register locations). |
| 83 | * This define will safely set the array size of both the parameter |
| 84 | * and data arrays. |
| 85 | * This comes from the data sheet register description table. |
| 86 | */ |
| 87 | #define LAST_REGISTER 0xff |
| 88 | |
| 89 | struct asc7621_data { |
| 90 | struct i2c_client client; |
| 91 | struct device *class_dev; |
| 92 | struct mutex update_lock; |
| 93 | int valid; /* !=0 if following fields are valid */ |
| 94 | unsigned long last_high_reading; /* In jiffies */ |
| 95 | unsigned long last_low_reading; /* In jiffies */ |
| 96 | /* |
| 97 | * Registers we care about occupy the corresponding index |
| 98 | * in the array. Registers we don't care about are left |
| 99 | * at 0. |
| 100 | */ |
| 101 | u8 reg[LAST_REGISTER + 1]; |
| 102 | }; |
| 103 | |
| 104 | /* |
| 105 | * Macro to get the parent asc7621_param structure |
| 106 | * from a sensor_device_attribute passed into the |
| 107 | * show/store functions. |
| 108 | */ |
| 109 | #define to_asc7621_param(_sda) \ |
| 110 | container_of(_sda, struct asc7621_param, sda) |
| 111 | |
| 112 | /* |
| 113 | * Each parameter to be retrieved needs an asc7621_param structure |
| 114 | * allocated. It contains the sensor_device_attribute structure |
| 115 | * and the control info needed to retrieve the value from the register map. |
| 116 | */ |
| 117 | struct asc7621_param { |
| 118 | struct sensor_device_attribute sda; |
| 119 | u8 priority; |
| 120 | u8 msb[3]; |
| 121 | u8 lsb[3]; |
| 122 | u8 mask[3]; |
| 123 | u8 shift[3]; |
| 124 | }; |
| 125 | |
| 126 | /* |
| 127 | * This is the map that ultimately indicates whether we'll be |
| 128 | * retrieving a register value or not, and at what frequency. |
| 129 | */ |
| 130 | static u8 asc7621_register_priorities[255]; |
| 131 | |
| 132 | static struct asc7621_data *asc7621_update_device(struct device *dev); |
| 133 | |
| 134 | static inline u8 read_byte(struct i2c_client *client, u8 reg) |
| 135 | { |
| 136 | int res = i2c_smbus_read_byte_data(client, reg); |
| 137 | if (res < 0) { |
| 138 | dev_err(&client->dev, |
| 139 | "Unable to read from register 0x%02x.\n", reg); |
| 140 | return 0; |
Guenter Roeck | a039371 | 2013-03-29 13:54:50 -0700 | [diff] [blame] | 141 | } |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 142 | return res & 0xff; |
| 143 | } |
| 144 | |
| 145 | static inline int write_byte(struct i2c_client *client, u8 reg, u8 data) |
| 146 | { |
| 147 | int res = i2c_smbus_write_byte_data(client, reg, data); |
| 148 | if (res < 0) { |
| 149 | dev_err(&client->dev, |
| 150 | "Unable to write value 0x%02x to register 0x%02x.\n", |
| 151 | data, reg); |
Guenter Roeck | a039371 | 2013-03-29 13:54:50 -0700 | [diff] [blame] | 152 | } |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 153 | return res; |
| 154 | } |
| 155 | |
| 156 | /* |
| 157 | * Data Handlers |
| 158 | * Each function handles the formatting, storage |
| 159 | * and retrieval of like parameters. |
| 160 | */ |
| 161 | |
Guenter Roeck | 088ce2a | 2013-03-13 16:40:39 -0700 | [diff] [blame] | 162 | #define SETUP_SHOW_DATA_PARAM(d, a) \ |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 163 | struct sensor_device_attribute *sda = to_sensor_dev_attr(a); \ |
| 164 | struct asc7621_data *data = asc7621_update_device(d); \ |
| 165 | struct asc7621_param *param = to_asc7621_param(sda) |
| 166 | |
Guenter Roeck | 088ce2a | 2013-03-13 16:40:39 -0700 | [diff] [blame] | 167 | #define SETUP_STORE_DATA_PARAM(d, a) \ |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 168 | struct sensor_device_attribute *sda = to_sensor_dev_attr(a); \ |
| 169 | struct i2c_client *client = to_i2c_client(d); \ |
| 170 | struct asc7621_data *data = i2c_get_clientdata(client); \ |
| 171 | struct asc7621_param *param = to_asc7621_param(sda) |
| 172 | |
| 173 | /* |
| 174 | * u8 is just what it sounds like...an unsigned byte with no |
| 175 | * special formatting. |
| 176 | */ |
| 177 | static ssize_t show_u8(struct device *dev, struct device_attribute *attr, |
| 178 | char *buf) |
| 179 | { |
Guenter Roeck | 088ce2a | 2013-03-13 16:40:39 -0700 | [diff] [blame] | 180 | SETUP_SHOW_DATA_PARAM(dev, attr); |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 181 | |
| 182 | return sprintf(buf, "%u\n", data->reg[param->msb[0]]); |
| 183 | } |
| 184 | |
| 185 | static ssize_t store_u8(struct device *dev, struct device_attribute *attr, |
| 186 | const char *buf, size_t count) |
| 187 | { |
Guenter Roeck | 088ce2a | 2013-03-13 16:40:39 -0700 | [diff] [blame] | 188 | SETUP_STORE_DATA_PARAM(dev, attr); |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 189 | long reqval; |
| 190 | |
Frans Meulenbroeks | 179c4fd | 2012-01-04 20:58:52 +0100 | [diff] [blame] | 191 | if (kstrtol(buf, 10, &reqval)) |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 192 | return -EINVAL; |
| 193 | |
Guenter Roeck | 2a844c1 | 2013-01-09 08:09:34 -0800 | [diff] [blame] | 194 | reqval = clamp_val(reqval, 0, 255); |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 195 | |
| 196 | mutex_lock(&data->update_lock); |
| 197 | data->reg[param->msb[0]] = reqval; |
| 198 | write_byte(client, param->msb[0], reqval); |
| 199 | mutex_unlock(&data->update_lock); |
| 200 | return count; |
| 201 | } |
| 202 | |
| 203 | /* |
| 204 | * Many of the config values occupy only a few bits of a register. |
| 205 | */ |
| 206 | static ssize_t show_bitmask(struct device *dev, |
| 207 | struct device_attribute *attr, char *buf) |
| 208 | { |
Guenter Roeck | 088ce2a | 2013-03-13 16:40:39 -0700 | [diff] [blame] | 209 | SETUP_SHOW_DATA_PARAM(dev, attr); |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 210 | |
| 211 | return sprintf(buf, "%u\n", |
| 212 | (data->reg[param->msb[0]] >> param-> |
| 213 | shift[0]) & param->mask[0]); |
| 214 | } |
| 215 | |
| 216 | static ssize_t store_bitmask(struct device *dev, |
| 217 | struct device_attribute *attr, |
| 218 | const char *buf, size_t count) |
| 219 | { |
Guenter Roeck | 088ce2a | 2013-03-13 16:40:39 -0700 | [diff] [blame] | 220 | SETUP_STORE_DATA_PARAM(dev, attr); |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 221 | long reqval; |
| 222 | u8 currval; |
| 223 | |
Frans Meulenbroeks | 179c4fd | 2012-01-04 20:58:52 +0100 | [diff] [blame] | 224 | if (kstrtol(buf, 10, &reqval)) |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 225 | return -EINVAL; |
| 226 | |
Guenter Roeck | 2a844c1 | 2013-01-09 08:09:34 -0800 | [diff] [blame] | 227 | reqval = clamp_val(reqval, 0, param->mask[0]); |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 228 | |
| 229 | reqval = (reqval & param->mask[0]) << param->shift[0]; |
| 230 | |
| 231 | mutex_lock(&data->update_lock); |
| 232 | currval = read_byte(client, param->msb[0]); |
| 233 | reqval |= (currval & ~(param->mask[0] << param->shift[0])); |
| 234 | data->reg[param->msb[0]] = reqval; |
| 235 | write_byte(client, param->msb[0], reqval); |
| 236 | mutex_unlock(&data->update_lock); |
| 237 | return count; |
| 238 | } |
| 239 | |
| 240 | /* |
| 241 | * 16 bit fan rpm values |
| 242 | * reported by the device as the number of 11.111us periods (90khz) |
| 243 | * between full fan rotations. Therefore... |
| 244 | * RPM = (90000 * 60) / register value |
| 245 | */ |
| 246 | static ssize_t show_fan16(struct device *dev, |
| 247 | struct device_attribute *attr, char *buf) |
| 248 | { |
Guenter Roeck | 088ce2a | 2013-03-13 16:40:39 -0700 | [diff] [blame] | 249 | SETUP_SHOW_DATA_PARAM(dev, attr); |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 250 | u16 regval; |
| 251 | |
| 252 | mutex_lock(&data->update_lock); |
| 253 | regval = (data->reg[param->msb[0]] << 8) | data->reg[param->lsb[0]]; |
| 254 | mutex_unlock(&data->update_lock); |
| 255 | |
| 256 | return sprintf(buf, "%u\n", |
| 257 | (regval == 0 ? -1 : (regval) == |
| 258 | 0xffff ? 0 : 5400000 / regval)); |
| 259 | } |
| 260 | |
| 261 | static ssize_t store_fan16(struct device *dev, |
| 262 | struct device_attribute *attr, const char *buf, |
| 263 | size_t count) |
| 264 | { |
Guenter Roeck | 088ce2a | 2013-03-13 16:40:39 -0700 | [diff] [blame] | 265 | SETUP_STORE_DATA_PARAM(dev, attr); |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 266 | long reqval; |
| 267 | |
Frans Meulenbroeks | 179c4fd | 2012-01-04 20:58:52 +0100 | [diff] [blame] | 268 | if (kstrtol(buf, 10, &reqval)) |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 269 | return -EINVAL; |
| 270 | |
Guenter Roeck | 3c56b06 | 2012-01-19 11:02:16 -0800 | [diff] [blame] | 271 | /* |
| 272 | * If a minimum RPM of zero is requested, then we set the register to |
| 273 | * 0xffff. This value allows the fan to be stopped completely without |
| 274 | * generating an alarm. |
| 275 | */ |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 276 | reqval = |
Guenter Roeck | 2a844c1 | 2013-01-09 08:09:34 -0800 | [diff] [blame] | 277 | (reqval <= 0 ? 0xffff : clamp_val(5400000 / reqval, 0, 0xfffe)); |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 278 | |
| 279 | mutex_lock(&data->update_lock); |
| 280 | data->reg[param->msb[0]] = (reqval >> 8) & 0xff; |
| 281 | data->reg[param->lsb[0]] = reqval & 0xff; |
| 282 | write_byte(client, param->msb[0], data->reg[param->msb[0]]); |
| 283 | write_byte(client, param->lsb[0], data->reg[param->lsb[0]]); |
| 284 | mutex_unlock(&data->update_lock); |
| 285 | |
| 286 | return count; |
| 287 | } |
| 288 | |
| 289 | /* |
| 290 | * Voltages are scaled in the device so that the nominal voltage |
| 291 | * is 3/4ths of the 0-255 range (i.e. 192). |
| 292 | * If all voltages are 'normal' then all voltage registers will |
Ken Milmore | d1bf8cf | 2010-05-11 09:17:46 +0200 | [diff] [blame] | 293 | * read 0xC0. |
| 294 | * |
| 295 | * The data sheet provides us with the 3/4 scale value for each voltage |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 296 | * which is stored in in_scaling. The sda->index parameter value provides |
| 297 | * the index into in_scaling. |
| 298 | * |
| 299 | * NOTE: The chip expects the first 2 inputs be 2.5 and 2.25 volts |
| 300 | * respectively. That doesn't mean that's what the motherboard provides. :) |
| 301 | */ |
| 302 | |
Axel Lin | 7a7176a | 2014-07-15 19:15:01 +0800 | [diff] [blame] | 303 | static const int asc7621_in_scaling[] = { |
Ken Milmore | d1bf8cf | 2010-05-11 09:17:46 +0200 | [diff] [blame] | 304 | 2500, 2250, 3300, 5000, 12000 |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 305 | }; |
| 306 | |
| 307 | static ssize_t show_in10(struct device *dev, struct device_attribute *attr, |
| 308 | char *buf) |
| 309 | { |
Guenter Roeck | 088ce2a | 2013-03-13 16:40:39 -0700 | [diff] [blame] | 310 | SETUP_SHOW_DATA_PARAM(dev, attr); |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 311 | u16 regval; |
| 312 | u8 nr = sda->index; |
| 313 | |
| 314 | mutex_lock(&data->update_lock); |
Ken Milmore | d1bf8cf | 2010-05-11 09:17:46 +0200 | [diff] [blame] | 315 | regval = (data->reg[param->msb[0]] << 8) | (data->reg[param->lsb[0]]); |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 316 | mutex_unlock(&data->update_lock); |
| 317 | |
Ken Milmore | d1bf8cf | 2010-05-11 09:17:46 +0200 | [diff] [blame] | 318 | /* The LSB value is a 2-bit scaling of the MSB's LSbit value. */ |
| 319 | regval = (regval >> 6) * asc7621_in_scaling[nr] / (0xc0 << 2); |
| 320 | |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 321 | return sprintf(buf, "%u\n", regval); |
| 322 | } |
| 323 | |
| 324 | /* 8 bit voltage values (the mins and maxs) */ |
| 325 | static ssize_t show_in8(struct device *dev, struct device_attribute *attr, |
| 326 | char *buf) |
| 327 | { |
Guenter Roeck | 088ce2a | 2013-03-13 16:40:39 -0700 | [diff] [blame] | 328 | SETUP_SHOW_DATA_PARAM(dev, attr); |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 329 | u8 nr = sda->index; |
| 330 | |
| 331 | return sprintf(buf, "%u\n", |
| 332 | ((data->reg[param->msb[0]] * |
Ken Milmore | d1bf8cf | 2010-05-11 09:17:46 +0200 | [diff] [blame] | 333 | asc7621_in_scaling[nr]) / 0xc0)); |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 334 | } |
| 335 | |
| 336 | static ssize_t store_in8(struct device *dev, struct device_attribute *attr, |
| 337 | const char *buf, size_t count) |
| 338 | { |
Guenter Roeck | 088ce2a | 2013-03-13 16:40:39 -0700 | [diff] [blame] | 339 | SETUP_STORE_DATA_PARAM(dev, attr); |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 340 | long reqval; |
| 341 | u8 nr = sda->index; |
| 342 | |
Frans Meulenbroeks | 179c4fd | 2012-01-04 20:58:52 +0100 | [diff] [blame] | 343 | if (kstrtol(buf, 10, &reqval)) |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 344 | return -EINVAL; |
| 345 | |
Guenter Roeck | 2a844c1 | 2013-01-09 08:09:34 -0800 | [diff] [blame] | 346 | reqval = clamp_val(reqval, 0, 0xffff); |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 347 | |
Ken Milmore | d1bf8cf | 2010-05-11 09:17:46 +0200 | [diff] [blame] | 348 | reqval = reqval * 0xc0 / asc7621_in_scaling[nr]; |
| 349 | |
Guenter Roeck | 2a844c1 | 2013-01-09 08:09:34 -0800 | [diff] [blame] | 350 | reqval = clamp_val(reqval, 0, 0xff); |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 351 | |
| 352 | mutex_lock(&data->update_lock); |
| 353 | data->reg[param->msb[0]] = reqval; |
| 354 | write_byte(client, param->msb[0], reqval); |
| 355 | mutex_unlock(&data->update_lock); |
| 356 | |
| 357 | return count; |
| 358 | } |
| 359 | |
| 360 | static ssize_t show_temp8(struct device *dev, |
| 361 | struct device_attribute *attr, char *buf) |
| 362 | { |
Guenter Roeck | 088ce2a | 2013-03-13 16:40:39 -0700 | [diff] [blame] | 363 | SETUP_SHOW_DATA_PARAM(dev, attr); |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 364 | |
| 365 | return sprintf(buf, "%d\n", ((s8) data->reg[param->msb[0]]) * 1000); |
| 366 | } |
| 367 | |
| 368 | static ssize_t store_temp8(struct device *dev, |
| 369 | struct device_attribute *attr, const char *buf, |
| 370 | size_t count) |
| 371 | { |
Guenter Roeck | 088ce2a | 2013-03-13 16:40:39 -0700 | [diff] [blame] | 372 | SETUP_STORE_DATA_PARAM(dev, attr); |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 373 | long reqval; |
| 374 | s8 temp; |
| 375 | |
Frans Meulenbroeks | 179c4fd | 2012-01-04 20:58:52 +0100 | [diff] [blame] | 376 | if (kstrtol(buf, 10, &reqval)) |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 377 | return -EINVAL; |
| 378 | |
Guenter Roeck | 2a844c1 | 2013-01-09 08:09:34 -0800 | [diff] [blame] | 379 | reqval = clamp_val(reqval, -127000, 127000); |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 380 | |
| 381 | temp = reqval / 1000; |
| 382 | |
| 383 | mutex_lock(&data->update_lock); |
| 384 | data->reg[param->msb[0]] = temp; |
| 385 | write_byte(client, param->msb[0], temp); |
| 386 | mutex_unlock(&data->update_lock); |
| 387 | return count; |
| 388 | } |
| 389 | |
| 390 | /* |
| 391 | * Temperatures that occupy 2 bytes always have the whole |
| 392 | * number of degrees in the MSB with some part of the LSB |
| 393 | * indicating fractional degrees. |
| 394 | */ |
| 395 | |
| 396 | /* mmmmmmmm.llxxxxxx */ |
| 397 | static ssize_t show_temp10(struct device *dev, |
| 398 | struct device_attribute *attr, char *buf) |
| 399 | { |
Guenter Roeck | 088ce2a | 2013-03-13 16:40:39 -0700 | [diff] [blame] | 400 | SETUP_SHOW_DATA_PARAM(dev, attr); |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 401 | u8 msb, lsb; |
| 402 | int temp; |
| 403 | |
| 404 | mutex_lock(&data->update_lock); |
| 405 | msb = data->reg[param->msb[0]]; |
| 406 | lsb = (data->reg[param->lsb[0]] >> 6) & 0x03; |
| 407 | temp = (((s8) msb) * 1000) + (lsb * 250); |
| 408 | mutex_unlock(&data->update_lock); |
| 409 | |
| 410 | return sprintf(buf, "%d\n", temp); |
| 411 | } |
| 412 | |
| 413 | /* mmmmmm.ll */ |
| 414 | static ssize_t show_temp62(struct device *dev, |
| 415 | struct device_attribute *attr, char *buf) |
| 416 | { |
Guenter Roeck | 088ce2a | 2013-03-13 16:40:39 -0700 | [diff] [blame] | 417 | SETUP_SHOW_DATA_PARAM(dev, attr); |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 418 | u8 regval = data->reg[param->msb[0]]; |
| 419 | int temp = ((s8) (regval & 0xfc) * 1000) + ((regval & 0x03) * 250); |
| 420 | |
| 421 | return sprintf(buf, "%d\n", temp); |
| 422 | } |
| 423 | |
| 424 | static ssize_t store_temp62(struct device *dev, |
| 425 | struct device_attribute *attr, const char *buf, |
| 426 | size_t count) |
| 427 | { |
Guenter Roeck | 088ce2a | 2013-03-13 16:40:39 -0700 | [diff] [blame] | 428 | SETUP_STORE_DATA_PARAM(dev, attr); |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 429 | long reqval, i, f; |
| 430 | s8 temp; |
| 431 | |
Frans Meulenbroeks | 179c4fd | 2012-01-04 20:58:52 +0100 | [diff] [blame] | 432 | if (kstrtol(buf, 10, &reqval)) |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 433 | return -EINVAL; |
| 434 | |
Guenter Roeck | 2a844c1 | 2013-01-09 08:09:34 -0800 | [diff] [blame] | 435 | reqval = clamp_val(reqval, -32000, 31750); |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 436 | i = reqval / 1000; |
| 437 | f = reqval - (i * 1000); |
| 438 | temp = i << 2; |
| 439 | temp |= f / 250; |
| 440 | |
| 441 | mutex_lock(&data->update_lock); |
| 442 | data->reg[param->msb[0]] = temp; |
| 443 | write_byte(client, param->msb[0], temp); |
| 444 | mutex_unlock(&data->update_lock); |
| 445 | return count; |
| 446 | } |
| 447 | |
| 448 | /* |
| 449 | * The aSC7621 doesn't provide an "auto_point2". Instead, you |
| 450 | * specify the auto_point1 and a range. To keep with the sysfs |
| 451 | * hwmon specs, we synthesize the auto_point_2 from them. |
| 452 | */ |
| 453 | |
Axel Lin | 7a7176a | 2014-07-15 19:15:01 +0800 | [diff] [blame] | 454 | static const u32 asc7621_range_map[] = { |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 455 | 2000, 2500, 3330, 4000, 5000, 6670, 8000, 10000, |
| 456 | 13330, 16000, 20000, 26670, 32000, 40000, 53330, 80000, |
| 457 | }; |
| 458 | |
| 459 | static ssize_t show_ap2_temp(struct device *dev, |
| 460 | struct device_attribute *attr, char *buf) |
| 461 | { |
Guenter Roeck | 088ce2a | 2013-03-13 16:40:39 -0700 | [diff] [blame] | 462 | SETUP_SHOW_DATA_PARAM(dev, attr); |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 463 | long auto_point1; |
| 464 | u8 regval; |
| 465 | int temp; |
| 466 | |
| 467 | mutex_lock(&data->update_lock); |
| 468 | auto_point1 = ((s8) data->reg[param->msb[1]]) * 1000; |
| 469 | regval = |
| 470 | ((data->reg[param->msb[0]] >> param->shift[0]) & param->mask[0]); |
Guenter Roeck | 2a844c1 | 2013-01-09 08:09:34 -0800 | [diff] [blame] | 471 | temp = auto_point1 + asc7621_range_map[clamp_val(regval, 0, 15)]; |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 472 | mutex_unlock(&data->update_lock); |
| 473 | |
| 474 | return sprintf(buf, "%d\n", temp); |
| 475 | |
| 476 | } |
| 477 | |
| 478 | static ssize_t store_ap2_temp(struct device *dev, |
| 479 | struct device_attribute *attr, |
| 480 | const char *buf, size_t count) |
| 481 | { |
Guenter Roeck | 088ce2a | 2013-03-13 16:40:39 -0700 | [diff] [blame] | 482 | SETUP_STORE_DATA_PARAM(dev, attr); |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 483 | long reqval, auto_point1; |
| 484 | int i; |
| 485 | u8 currval, newval = 0; |
| 486 | |
Frans Meulenbroeks | 179c4fd | 2012-01-04 20:58:52 +0100 | [diff] [blame] | 487 | if (kstrtol(buf, 10, &reqval)) |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 488 | return -EINVAL; |
| 489 | |
| 490 | mutex_lock(&data->update_lock); |
| 491 | auto_point1 = data->reg[param->msb[1]] * 1000; |
Guenter Roeck | 2a844c1 | 2013-01-09 08:09:34 -0800 | [diff] [blame] | 492 | reqval = clamp_val(reqval, auto_point1 + 2000, auto_point1 + 80000); |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 493 | |
| 494 | for (i = ARRAY_SIZE(asc7621_range_map) - 1; i >= 0; i--) { |
| 495 | if (reqval >= auto_point1 + asc7621_range_map[i]) { |
| 496 | newval = i; |
| 497 | break; |
| 498 | } |
| 499 | } |
| 500 | |
| 501 | newval = (newval & param->mask[0]) << param->shift[0]; |
| 502 | currval = read_byte(client, param->msb[0]); |
| 503 | newval |= (currval & ~(param->mask[0] << param->shift[0])); |
| 504 | data->reg[param->msb[0]] = newval; |
| 505 | write_byte(client, param->msb[0], newval); |
| 506 | mutex_unlock(&data->update_lock); |
| 507 | return count; |
| 508 | } |
| 509 | |
| 510 | static ssize_t show_pwm_ac(struct device *dev, |
| 511 | struct device_attribute *attr, char *buf) |
| 512 | { |
Guenter Roeck | 088ce2a | 2013-03-13 16:40:39 -0700 | [diff] [blame] | 513 | SETUP_SHOW_DATA_PARAM(dev, attr); |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 514 | u8 config, altbit, regval; |
Colin Ian King | 6930125 | 2017-08-30 09:32:25 +0100 | [diff] [blame] | 515 | static const u8 map[] = { |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 516 | 0x01, 0x02, 0x04, 0x1f, 0x00, 0x06, 0x07, 0x10, |
| 517 | 0x08, 0x0f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f |
| 518 | }; |
| 519 | |
| 520 | mutex_lock(&data->update_lock); |
| 521 | config = (data->reg[param->msb[0]] >> param->shift[0]) & param->mask[0]; |
| 522 | altbit = (data->reg[param->msb[1]] >> param->shift[1]) & param->mask[1]; |
| 523 | regval = config | (altbit << 3); |
| 524 | mutex_unlock(&data->update_lock); |
| 525 | |
Guenter Roeck | 2a844c1 | 2013-01-09 08:09:34 -0800 | [diff] [blame] | 526 | return sprintf(buf, "%u\n", map[clamp_val(regval, 0, 15)]); |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 527 | } |
| 528 | |
| 529 | static ssize_t store_pwm_ac(struct device *dev, |
| 530 | struct device_attribute *attr, |
| 531 | const char *buf, size_t count) |
| 532 | { |
Guenter Roeck | 088ce2a | 2013-03-13 16:40:39 -0700 | [diff] [blame] | 533 | SETUP_STORE_DATA_PARAM(dev, attr); |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 534 | unsigned long reqval; |
| 535 | u8 currval, config, altbit, newval; |
Colin Ian King | 6930125 | 2017-08-30 09:32:25 +0100 | [diff] [blame] | 536 | static const u16 map[] = { |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 537 | 0x04, 0x00, 0x01, 0xff, 0x02, 0xff, 0x05, 0x06, |
| 538 | 0x08, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x0f, |
| 539 | 0x07, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
| 540 | 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x03, |
| 541 | }; |
| 542 | |
Frans Meulenbroeks | 179c4fd | 2012-01-04 20:58:52 +0100 | [diff] [blame] | 543 | if (kstrtoul(buf, 10, &reqval)) |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 544 | return -EINVAL; |
| 545 | |
| 546 | if (reqval > 31) |
| 547 | return -EINVAL; |
| 548 | |
| 549 | reqval = map[reqval]; |
| 550 | if (reqval == 0xff) |
| 551 | return -EINVAL; |
| 552 | |
| 553 | config = reqval & 0x07; |
| 554 | altbit = (reqval >> 3) & 0x01; |
| 555 | |
| 556 | config = (config & param->mask[0]) << param->shift[0]; |
| 557 | altbit = (altbit & param->mask[1]) << param->shift[1]; |
| 558 | |
| 559 | mutex_lock(&data->update_lock); |
| 560 | currval = read_byte(client, param->msb[0]); |
| 561 | newval = config | (currval & ~(param->mask[0] << param->shift[0])); |
| 562 | newval = altbit | (newval & ~(param->mask[1] << param->shift[1])); |
| 563 | data->reg[param->msb[0]] = newval; |
| 564 | write_byte(client, param->msb[0], newval); |
| 565 | mutex_unlock(&data->update_lock); |
| 566 | return count; |
| 567 | } |
| 568 | |
| 569 | static ssize_t show_pwm_enable(struct device *dev, |
| 570 | struct device_attribute *attr, char *buf) |
| 571 | { |
Guenter Roeck | 088ce2a | 2013-03-13 16:40:39 -0700 | [diff] [blame] | 572 | SETUP_SHOW_DATA_PARAM(dev, attr); |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 573 | u8 config, altbit, minoff, val, newval; |
| 574 | |
| 575 | mutex_lock(&data->update_lock); |
| 576 | config = (data->reg[param->msb[0]] >> param->shift[0]) & param->mask[0]; |
| 577 | altbit = (data->reg[param->msb[1]] >> param->shift[1]) & param->mask[1]; |
| 578 | minoff = (data->reg[param->msb[2]] >> param->shift[2]) & param->mask[2]; |
| 579 | mutex_unlock(&data->update_lock); |
| 580 | |
| 581 | val = config | (altbit << 3); |
| 582 | newval = 0; |
| 583 | |
| 584 | if (val == 3 || val >= 10) |
| 585 | newval = 255; |
| 586 | else if (val == 4) |
| 587 | newval = 0; |
| 588 | else if (val == 7) |
| 589 | newval = 1; |
| 590 | else if (minoff == 1) |
| 591 | newval = 2; |
| 592 | else |
| 593 | newval = 3; |
| 594 | |
| 595 | return sprintf(buf, "%u\n", newval); |
| 596 | } |
| 597 | |
| 598 | static ssize_t store_pwm_enable(struct device *dev, |
| 599 | struct device_attribute *attr, |
| 600 | const char *buf, size_t count) |
| 601 | { |
Guenter Roeck | 088ce2a | 2013-03-13 16:40:39 -0700 | [diff] [blame] | 602 | SETUP_STORE_DATA_PARAM(dev, attr); |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 603 | long reqval; |
| 604 | u8 currval, config, altbit, newval, minoff = 255; |
| 605 | |
Frans Meulenbroeks | 179c4fd | 2012-01-04 20:58:52 +0100 | [diff] [blame] | 606 | if (kstrtol(buf, 10, &reqval)) |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 607 | return -EINVAL; |
| 608 | |
| 609 | switch (reqval) { |
| 610 | case 0: |
| 611 | newval = 0x04; |
| 612 | break; |
| 613 | case 1: |
| 614 | newval = 0x07; |
| 615 | break; |
| 616 | case 2: |
| 617 | newval = 0x00; |
| 618 | minoff = 1; |
| 619 | break; |
| 620 | case 3: |
| 621 | newval = 0x00; |
| 622 | minoff = 0; |
| 623 | break; |
| 624 | case 255: |
| 625 | newval = 0x03; |
| 626 | break; |
| 627 | default: |
| 628 | return -EINVAL; |
| 629 | } |
| 630 | |
| 631 | config = newval & 0x07; |
| 632 | altbit = (newval >> 3) & 0x01; |
| 633 | |
| 634 | mutex_lock(&data->update_lock); |
| 635 | config = (config & param->mask[0]) << param->shift[0]; |
| 636 | altbit = (altbit & param->mask[1]) << param->shift[1]; |
| 637 | currval = read_byte(client, param->msb[0]); |
| 638 | newval = config | (currval & ~(param->mask[0] << param->shift[0])); |
| 639 | newval = altbit | (newval & ~(param->mask[1] << param->shift[1])); |
| 640 | data->reg[param->msb[0]] = newval; |
| 641 | write_byte(client, param->msb[0], newval); |
| 642 | if (minoff < 255) { |
| 643 | minoff = (minoff & param->mask[2]) << param->shift[2]; |
| 644 | currval = read_byte(client, param->msb[2]); |
| 645 | newval = |
| 646 | minoff | (currval & ~(param->mask[2] << param->shift[2])); |
| 647 | data->reg[param->msb[2]] = newval; |
| 648 | write_byte(client, param->msb[2], newval); |
| 649 | } |
| 650 | mutex_unlock(&data->update_lock); |
| 651 | return count; |
| 652 | } |
| 653 | |
Axel Lin | 7a7176a | 2014-07-15 19:15:01 +0800 | [diff] [blame] | 654 | static const u32 asc7621_pwm_freq_map[] = { |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 655 | 10, 15, 23, 30, 38, 47, 62, 94, |
| 656 | 23000, 24000, 25000, 26000, 27000, 28000, 29000, 30000 |
| 657 | }; |
| 658 | |
| 659 | static ssize_t show_pwm_freq(struct device *dev, |
| 660 | struct device_attribute *attr, char *buf) |
| 661 | { |
Guenter Roeck | 088ce2a | 2013-03-13 16:40:39 -0700 | [diff] [blame] | 662 | SETUP_SHOW_DATA_PARAM(dev, attr); |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 663 | u8 regval = |
| 664 | (data->reg[param->msb[0]] >> param->shift[0]) & param->mask[0]; |
| 665 | |
Guenter Roeck | 2a844c1 | 2013-01-09 08:09:34 -0800 | [diff] [blame] | 666 | regval = clamp_val(regval, 0, 15); |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 667 | |
| 668 | return sprintf(buf, "%u\n", asc7621_pwm_freq_map[regval]); |
| 669 | } |
| 670 | |
| 671 | static ssize_t store_pwm_freq(struct device *dev, |
| 672 | struct device_attribute *attr, |
| 673 | const char *buf, size_t count) |
| 674 | { |
Guenter Roeck | 088ce2a | 2013-03-13 16:40:39 -0700 | [diff] [blame] | 675 | SETUP_STORE_DATA_PARAM(dev, attr); |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 676 | unsigned long reqval; |
| 677 | u8 currval, newval = 255; |
| 678 | int i; |
| 679 | |
Frans Meulenbroeks | 179c4fd | 2012-01-04 20:58:52 +0100 | [diff] [blame] | 680 | if (kstrtoul(buf, 10, &reqval)) |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 681 | return -EINVAL; |
| 682 | |
| 683 | for (i = 0; i < ARRAY_SIZE(asc7621_pwm_freq_map); i++) { |
| 684 | if (reqval == asc7621_pwm_freq_map[i]) { |
| 685 | newval = i; |
| 686 | break; |
| 687 | } |
| 688 | } |
| 689 | if (newval == 255) |
| 690 | return -EINVAL; |
| 691 | |
| 692 | newval = (newval & param->mask[0]) << param->shift[0]; |
| 693 | |
| 694 | mutex_lock(&data->update_lock); |
| 695 | currval = read_byte(client, param->msb[0]); |
| 696 | newval |= (currval & ~(param->mask[0] << param->shift[0])); |
| 697 | data->reg[param->msb[0]] = newval; |
| 698 | write_byte(client, param->msb[0], newval); |
| 699 | mutex_unlock(&data->update_lock); |
| 700 | return count; |
| 701 | } |
| 702 | |
Axel Lin | 7a7176a | 2014-07-15 19:15:01 +0800 | [diff] [blame] | 703 | static const u32 asc7621_pwm_auto_spinup_map[] = { |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 704 | 0, 100, 250, 400, 700, 1000, 2000, 4000 |
| 705 | }; |
| 706 | |
| 707 | static ssize_t show_pwm_ast(struct device *dev, |
| 708 | struct device_attribute *attr, char *buf) |
| 709 | { |
Guenter Roeck | 088ce2a | 2013-03-13 16:40:39 -0700 | [diff] [blame] | 710 | SETUP_SHOW_DATA_PARAM(dev, attr); |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 711 | u8 regval = |
| 712 | (data->reg[param->msb[0]] >> param->shift[0]) & param->mask[0]; |
| 713 | |
Guenter Roeck | 2a844c1 | 2013-01-09 08:09:34 -0800 | [diff] [blame] | 714 | regval = clamp_val(regval, 0, 7); |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 715 | |
| 716 | return sprintf(buf, "%u\n", asc7621_pwm_auto_spinup_map[regval]); |
| 717 | |
| 718 | } |
| 719 | |
| 720 | static ssize_t store_pwm_ast(struct device *dev, |
| 721 | struct device_attribute *attr, |
| 722 | const char *buf, size_t count) |
| 723 | { |
Guenter Roeck | 088ce2a | 2013-03-13 16:40:39 -0700 | [diff] [blame] | 724 | SETUP_STORE_DATA_PARAM(dev, attr); |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 725 | long reqval; |
| 726 | u8 currval, newval = 255; |
| 727 | u32 i; |
| 728 | |
Frans Meulenbroeks | 179c4fd | 2012-01-04 20:58:52 +0100 | [diff] [blame] | 729 | if (kstrtol(buf, 10, &reqval)) |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 730 | return -EINVAL; |
| 731 | |
| 732 | for (i = 0; i < ARRAY_SIZE(asc7621_pwm_auto_spinup_map); i++) { |
| 733 | if (reqval == asc7621_pwm_auto_spinup_map[i]) { |
| 734 | newval = i; |
| 735 | break; |
| 736 | } |
| 737 | } |
| 738 | if (newval == 255) |
| 739 | return -EINVAL; |
| 740 | |
| 741 | newval = (newval & param->mask[0]) << param->shift[0]; |
| 742 | |
| 743 | mutex_lock(&data->update_lock); |
| 744 | currval = read_byte(client, param->msb[0]); |
| 745 | newval |= (currval & ~(param->mask[0] << param->shift[0])); |
| 746 | data->reg[param->msb[0]] = newval; |
| 747 | write_byte(client, param->msb[0], newval); |
| 748 | mutex_unlock(&data->update_lock); |
| 749 | return count; |
| 750 | } |
| 751 | |
Axel Lin | 7a7176a | 2014-07-15 19:15:01 +0800 | [diff] [blame] | 752 | static const u32 asc7621_temp_smoothing_time_map[] = { |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 753 | 35000, 17600, 11800, 7000, 4400, 3000, 1600, 800 |
| 754 | }; |
| 755 | |
| 756 | static ssize_t show_temp_st(struct device *dev, |
| 757 | struct device_attribute *attr, char *buf) |
| 758 | { |
Guenter Roeck | 088ce2a | 2013-03-13 16:40:39 -0700 | [diff] [blame] | 759 | SETUP_SHOW_DATA_PARAM(dev, attr); |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 760 | u8 regval = |
| 761 | (data->reg[param->msb[0]] >> param->shift[0]) & param->mask[0]; |
Guenter Roeck | 2a844c1 | 2013-01-09 08:09:34 -0800 | [diff] [blame] | 762 | regval = clamp_val(regval, 0, 7); |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 763 | |
| 764 | return sprintf(buf, "%u\n", asc7621_temp_smoothing_time_map[regval]); |
| 765 | } |
| 766 | |
| 767 | static ssize_t store_temp_st(struct device *dev, |
| 768 | struct device_attribute *attr, |
| 769 | const char *buf, size_t count) |
| 770 | { |
Guenter Roeck | 088ce2a | 2013-03-13 16:40:39 -0700 | [diff] [blame] | 771 | SETUP_STORE_DATA_PARAM(dev, attr); |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 772 | long reqval; |
| 773 | u8 currval, newval = 255; |
| 774 | u32 i; |
| 775 | |
Frans Meulenbroeks | 179c4fd | 2012-01-04 20:58:52 +0100 | [diff] [blame] | 776 | if (kstrtol(buf, 10, &reqval)) |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 777 | return -EINVAL; |
| 778 | |
| 779 | for (i = 0; i < ARRAY_SIZE(asc7621_temp_smoothing_time_map); i++) { |
| 780 | if (reqval == asc7621_temp_smoothing_time_map[i]) { |
| 781 | newval = i; |
| 782 | break; |
| 783 | } |
| 784 | } |
| 785 | |
| 786 | if (newval == 255) |
| 787 | return -EINVAL; |
| 788 | |
| 789 | newval = (newval & param->mask[0]) << param->shift[0]; |
| 790 | |
| 791 | mutex_lock(&data->update_lock); |
| 792 | currval = read_byte(client, param->msb[0]); |
| 793 | newval |= (currval & ~(param->mask[0] << param->shift[0])); |
| 794 | data->reg[param->msb[0]] = newval; |
| 795 | write_byte(client, param->msb[0], newval); |
| 796 | mutex_unlock(&data->update_lock); |
| 797 | return count; |
| 798 | } |
| 799 | |
| 800 | /* |
| 801 | * End of data handlers |
| 802 | * |
| 803 | * These defines do nothing more than make the table easier |
| 804 | * to read when wrapped at column 80. |
| 805 | */ |
| 806 | |
| 807 | /* |
| 808 | * Creates a variable length array inititalizer. |
| 809 | * VAA(1,3,5,7) would produce {1,3,5,7} |
| 810 | */ |
| 811 | #define VAA(args...) {args} |
| 812 | |
| 813 | #define PREAD(name, n, pri, rm, rl, m, s, r) \ |
| 814 | {.sda = SENSOR_ATTR(name, S_IRUGO, show_##r, NULL, n), \ |
| 815 | .priority = pri, .msb[0] = rm, .lsb[0] = rl, .mask[0] = m, \ |
| 816 | .shift[0] = s,} |
| 817 | |
| 818 | #define PWRITE(name, n, pri, rm, rl, m, s, r) \ |
| 819 | {.sda = SENSOR_ATTR(name, S_IRUGO | S_IWUSR, show_##r, store_##r, n), \ |
| 820 | .priority = pri, .msb[0] = rm, .lsb[0] = rl, .mask[0] = m, \ |
| 821 | .shift[0] = s,} |
| 822 | |
| 823 | /* |
| 824 | * PWRITEM assumes that the initializers for the .msb, .lsb, .mask and .shift |
| 825 | * were created using the VAA macro. |
| 826 | */ |
| 827 | #define PWRITEM(name, n, pri, rm, rl, m, s, r) \ |
| 828 | {.sda = SENSOR_ATTR(name, S_IRUGO | S_IWUSR, show_##r, store_##r, n), \ |
| 829 | .priority = pri, .msb = rm, .lsb = rl, .mask = m, .shift = s,} |
| 830 | |
| 831 | static struct asc7621_param asc7621_params[] = { |
| 832 | PREAD(in0_input, 0, PRI_HIGH, 0x20, 0x13, 0, 0, in10), |
| 833 | PREAD(in1_input, 1, PRI_HIGH, 0x21, 0x18, 0, 0, in10), |
| 834 | PREAD(in2_input, 2, PRI_HIGH, 0x22, 0x11, 0, 0, in10), |
| 835 | PREAD(in3_input, 3, PRI_HIGH, 0x23, 0x12, 0, 0, in10), |
| 836 | PREAD(in4_input, 4, PRI_HIGH, 0x24, 0x14, 0, 0, in10), |
| 837 | |
| 838 | PWRITE(in0_min, 0, PRI_LOW, 0x44, 0, 0, 0, in8), |
| 839 | PWRITE(in1_min, 1, PRI_LOW, 0x46, 0, 0, 0, in8), |
| 840 | PWRITE(in2_min, 2, PRI_LOW, 0x48, 0, 0, 0, in8), |
| 841 | PWRITE(in3_min, 3, PRI_LOW, 0x4a, 0, 0, 0, in8), |
| 842 | PWRITE(in4_min, 4, PRI_LOW, 0x4c, 0, 0, 0, in8), |
| 843 | |
| 844 | PWRITE(in0_max, 0, PRI_LOW, 0x45, 0, 0, 0, in8), |
| 845 | PWRITE(in1_max, 1, PRI_LOW, 0x47, 0, 0, 0, in8), |
| 846 | PWRITE(in2_max, 2, PRI_LOW, 0x49, 0, 0, 0, in8), |
| 847 | PWRITE(in3_max, 3, PRI_LOW, 0x4b, 0, 0, 0, in8), |
| 848 | PWRITE(in4_max, 4, PRI_LOW, 0x4d, 0, 0, 0, in8), |
| 849 | |
Ken Milmore | d1bf8cf | 2010-05-11 09:17:46 +0200 | [diff] [blame] | 850 | PREAD(in0_alarm, 0, PRI_HIGH, 0x41, 0, 0x01, 0, bitmask), |
| 851 | PREAD(in1_alarm, 1, PRI_HIGH, 0x41, 0, 0x01, 1, bitmask), |
| 852 | PREAD(in2_alarm, 2, PRI_HIGH, 0x41, 0, 0x01, 2, bitmask), |
| 853 | PREAD(in3_alarm, 3, PRI_HIGH, 0x41, 0, 0x01, 3, bitmask), |
| 854 | PREAD(in4_alarm, 4, PRI_HIGH, 0x42, 0, 0x01, 0, bitmask), |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 855 | |
| 856 | PREAD(fan1_input, 0, PRI_HIGH, 0x29, 0x28, 0, 0, fan16), |
| 857 | PREAD(fan2_input, 1, PRI_HIGH, 0x2b, 0x2a, 0, 0, fan16), |
| 858 | PREAD(fan3_input, 2, PRI_HIGH, 0x2d, 0x2c, 0, 0, fan16), |
| 859 | PREAD(fan4_input, 3, PRI_HIGH, 0x2f, 0x2e, 0, 0, fan16), |
| 860 | |
| 861 | PWRITE(fan1_min, 0, PRI_LOW, 0x55, 0x54, 0, 0, fan16), |
| 862 | PWRITE(fan2_min, 1, PRI_LOW, 0x57, 0x56, 0, 0, fan16), |
| 863 | PWRITE(fan3_min, 2, PRI_LOW, 0x59, 0x58, 0, 0, fan16), |
| 864 | PWRITE(fan4_min, 3, PRI_LOW, 0x5b, 0x5a, 0, 0, fan16), |
| 865 | |
Ken Milmore | d1bf8cf | 2010-05-11 09:17:46 +0200 | [diff] [blame] | 866 | PREAD(fan1_alarm, 0, PRI_HIGH, 0x42, 0, 0x01, 2, bitmask), |
| 867 | PREAD(fan2_alarm, 1, PRI_HIGH, 0x42, 0, 0x01, 3, bitmask), |
| 868 | PREAD(fan3_alarm, 2, PRI_HIGH, 0x42, 0, 0x01, 4, bitmask), |
| 869 | PREAD(fan4_alarm, 3, PRI_HIGH, 0x42, 0, 0x01, 5, bitmask), |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 870 | |
| 871 | PREAD(temp1_input, 0, PRI_HIGH, 0x25, 0x10, 0, 0, temp10), |
| 872 | PREAD(temp2_input, 1, PRI_HIGH, 0x26, 0x15, 0, 0, temp10), |
| 873 | PREAD(temp3_input, 2, PRI_HIGH, 0x27, 0x16, 0, 0, temp10), |
| 874 | PREAD(temp4_input, 3, PRI_HIGH, 0x33, 0x17, 0, 0, temp10), |
| 875 | PREAD(temp5_input, 4, PRI_HIGH, 0xf7, 0xf6, 0, 0, temp10), |
| 876 | PREAD(temp6_input, 5, PRI_HIGH, 0xf9, 0xf8, 0, 0, temp10), |
| 877 | PREAD(temp7_input, 6, PRI_HIGH, 0xfb, 0xfa, 0, 0, temp10), |
| 878 | PREAD(temp8_input, 7, PRI_HIGH, 0xfd, 0xfc, 0, 0, temp10), |
| 879 | |
| 880 | PWRITE(temp1_min, 0, PRI_LOW, 0x4e, 0, 0, 0, temp8), |
| 881 | PWRITE(temp2_min, 1, PRI_LOW, 0x50, 0, 0, 0, temp8), |
| 882 | PWRITE(temp3_min, 2, PRI_LOW, 0x52, 0, 0, 0, temp8), |
| 883 | PWRITE(temp4_min, 3, PRI_LOW, 0x34, 0, 0, 0, temp8), |
| 884 | |
| 885 | PWRITE(temp1_max, 0, PRI_LOW, 0x4f, 0, 0, 0, temp8), |
| 886 | PWRITE(temp2_max, 1, PRI_LOW, 0x51, 0, 0, 0, temp8), |
| 887 | PWRITE(temp3_max, 2, PRI_LOW, 0x53, 0, 0, 0, temp8), |
| 888 | PWRITE(temp4_max, 3, PRI_LOW, 0x35, 0, 0, 0, temp8), |
| 889 | |
Ken Milmore | d1bf8cf | 2010-05-11 09:17:46 +0200 | [diff] [blame] | 890 | PREAD(temp1_alarm, 0, PRI_HIGH, 0x41, 0, 0x01, 4, bitmask), |
| 891 | PREAD(temp2_alarm, 1, PRI_HIGH, 0x41, 0, 0x01, 5, bitmask), |
| 892 | PREAD(temp3_alarm, 2, PRI_HIGH, 0x41, 0, 0x01, 6, bitmask), |
| 893 | PREAD(temp4_alarm, 3, PRI_HIGH, 0x43, 0, 0x01, 0, bitmask), |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 894 | |
| 895 | PWRITE(temp1_source, 0, PRI_LOW, 0x02, 0, 0x07, 4, bitmask), |
| 896 | PWRITE(temp2_source, 1, PRI_LOW, 0x02, 0, 0x07, 0, bitmask), |
| 897 | PWRITE(temp3_source, 2, PRI_LOW, 0x03, 0, 0x07, 4, bitmask), |
| 898 | PWRITE(temp4_source, 3, PRI_LOW, 0x03, 0, 0x07, 0, bitmask), |
| 899 | |
| 900 | PWRITE(temp1_smoothing_enable, 0, PRI_LOW, 0x62, 0, 0x01, 3, bitmask), |
| 901 | PWRITE(temp2_smoothing_enable, 1, PRI_LOW, 0x63, 0, 0x01, 7, bitmask), |
Ken Milmore | d1bf8cf | 2010-05-11 09:17:46 +0200 | [diff] [blame] | 902 | PWRITE(temp3_smoothing_enable, 2, PRI_LOW, 0x63, 0, 0x01, 3, bitmask), |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 903 | PWRITE(temp4_smoothing_enable, 3, PRI_LOW, 0x3c, 0, 0x01, 3, bitmask), |
| 904 | |
| 905 | PWRITE(temp1_smoothing_time, 0, PRI_LOW, 0x62, 0, 0x07, 0, temp_st), |
| 906 | PWRITE(temp2_smoothing_time, 1, PRI_LOW, 0x63, 0, 0x07, 4, temp_st), |
| 907 | PWRITE(temp3_smoothing_time, 2, PRI_LOW, 0x63, 0, 0x07, 0, temp_st), |
| 908 | PWRITE(temp4_smoothing_time, 3, PRI_LOW, 0x3c, 0, 0x07, 0, temp_st), |
| 909 | |
| 910 | PWRITE(temp1_auto_point1_temp_hyst, 0, PRI_LOW, 0x6d, 0, 0x0f, 4, |
| 911 | bitmask), |
| 912 | PWRITE(temp2_auto_point1_temp_hyst, 1, PRI_LOW, 0x6d, 0, 0x0f, 0, |
| 913 | bitmask), |
| 914 | PWRITE(temp3_auto_point1_temp_hyst, 2, PRI_LOW, 0x6e, 0, 0x0f, 4, |
| 915 | bitmask), |
| 916 | PWRITE(temp4_auto_point1_temp_hyst, 3, PRI_LOW, 0x6e, 0, 0x0f, 0, |
| 917 | bitmask), |
| 918 | |
| 919 | PREAD(temp1_auto_point2_temp_hyst, 0, PRI_LOW, 0x6d, 0, 0x0f, 4, |
| 920 | bitmask), |
| 921 | PREAD(temp2_auto_point2_temp_hyst, 1, PRI_LOW, 0x6d, 0, 0x0f, 0, |
| 922 | bitmask), |
| 923 | PREAD(temp3_auto_point2_temp_hyst, 2, PRI_LOW, 0x6e, 0, 0x0f, 4, |
| 924 | bitmask), |
| 925 | PREAD(temp4_auto_point2_temp_hyst, 3, PRI_LOW, 0x6e, 0, 0x0f, 0, |
| 926 | bitmask), |
| 927 | |
| 928 | PWRITE(temp1_auto_point1_temp, 0, PRI_LOW, 0x67, 0, 0, 0, temp8), |
| 929 | PWRITE(temp2_auto_point1_temp, 1, PRI_LOW, 0x68, 0, 0, 0, temp8), |
| 930 | PWRITE(temp3_auto_point1_temp, 2, PRI_LOW, 0x69, 0, 0, 0, temp8), |
| 931 | PWRITE(temp4_auto_point1_temp, 3, PRI_LOW, 0x3b, 0, 0, 0, temp8), |
| 932 | |
| 933 | PWRITEM(temp1_auto_point2_temp, 0, PRI_LOW, VAA(0x5f, 0x67), VAA(0), |
| 934 | VAA(0x0f), VAA(4), ap2_temp), |
| 935 | PWRITEM(temp2_auto_point2_temp, 1, PRI_LOW, VAA(0x60, 0x68), VAA(0), |
| 936 | VAA(0x0f), VAA(4), ap2_temp), |
| 937 | PWRITEM(temp3_auto_point2_temp, 2, PRI_LOW, VAA(0x61, 0x69), VAA(0), |
| 938 | VAA(0x0f), VAA(4), ap2_temp), |
| 939 | PWRITEM(temp4_auto_point2_temp, 3, PRI_LOW, VAA(0x3c, 0x3b), VAA(0), |
| 940 | VAA(0x0f), VAA(4), ap2_temp), |
| 941 | |
| 942 | PWRITE(temp1_crit, 0, PRI_LOW, 0x6a, 0, 0, 0, temp8), |
| 943 | PWRITE(temp2_crit, 1, PRI_LOW, 0x6b, 0, 0, 0, temp8), |
| 944 | PWRITE(temp3_crit, 2, PRI_LOW, 0x6c, 0, 0, 0, temp8), |
| 945 | PWRITE(temp4_crit, 3, PRI_LOW, 0x3d, 0, 0, 0, temp8), |
| 946 | |
| 947 | PWRITE(temp5_enable, 4, PRI_LOW, 0x0e, 0, 0x01, 0, bitmask), |
| 948 | PWRITE(temp6_enable, 5, PRI_LOW, 0x0e, 0, 0x01, 1, bitmask), |
| 949 | PWRITE(temp7_enable, 6, PRI_LOW, 0x0e, 0, 0x01, 2, bitmask), |
| 950 | PWRITE(temp8_enable, 7, PRI_LOW, 0x0e, 0, 0x01, 3, bitmask), |
| 951 | |
| 952 | PWRITE(remote1_offset, 0, PRI_LOW, 0x1c, 0, 0, 0, temp62), |
| 953 | PWRITE(remote2_offset, 1, PRI_LOW, 0x1d, 0, 0, 0, temp62), |
| 954 | |
| 955 | PWRITE(pwm1, 0, PRI_HIGH, 0x30, 0, 0, 0, u8), |
| 956 | PWRITE(pwm2, 1, PRI_HIGH, 0x31, 0, 0, 0, u8), |
| 957 | PWRITE(pwm3, 2, PRI_HIGH, 0x32, 0, 0, 0, u8), |
| 958 | |
| 959 | PWRITE(pwm1_invert, 0, PRI_LOW, 0x5c, 0, 0x01, 4, bitmask), |
| 960 | PWRITE(pwm2_invert, 1, PRI_LOW, 0x5d, 0, 0x01, 4, bitmask), |
| 961 | PWRITE(pwm3_invert, 2, PRI_LOW, 0x5e, 0, 0x01, 4, bitmask), |
| 962 | |
| 963 | PWRITEM(pwm1_enable, 0, PRI_LOW, VAA(0x5c, 0x5c, 0x62), VAA(0, 0, 0), |
| 964 | VAA(0x07, 0x01, 0x01), VAA(5, 3, 5), pwm_enable), |
| 965 | PWRITEM(pwm2_enable, 1, PRI_LOW, VAA(0x5d, 0x5d, 0x62), VAA(0, 0, 0), |
| 966 | VAA(0x07, 0x01, 0x01), VAA(5, 3, 6), pwm_enable), |
| 967 | PWRITEM(pwm3_enable, 2, PRI_LOW, VAA(0x5e, 0x5e, 0x62), VAA(0, 0, 0), |
| 968 | VAA(0x07, 0x01, 0x01), VAA(5, 3, 7), pwm_enable), |
| 969 | |
| 970 | PWRITEM(pwm1_auto_channels, 0, PRI_LOW, VAA(0x5c, 0x5c), VAA(0, 0), |
| 971 | VAA(0x07, 0x01), VAA(5, 3), pwm_ac), |
| 972 | PWRITEM(pwm2_auto_channels, 1, PRI_LOW, VAA(0x5d, 0x5d), VAA(0, 0), |
| 973 | VAA(0x07, 0x01), VAA(5, 3), pwm_ac), |
| 974 | PWRITEM(pwm3_auto_channels, 2, PRI_LOW, VAA(0x5e, 0x5e), VAA(0, 0), |
| 975 | VAA(0x07, 0x01), VAA(5, 3), pwm_ac), |
| 976 | |
| 977 | PWRITE(pwm1_auto_point1_pwm, 0, PRI_LOW, 0x64, 0, 0, 0, u8), |
| 978 | PWRITE(pwm2_auto_point1_pwm, 1, PRI_LOW, 0x65, 0, 0, 0, u8), |
| 979 | PWRITE(pwm3_auto_point1_pwm, 2, PRI_LOW, 0x66, 0, 0, 0, u8), |
| 980 | |
| 981 | PWRITE(pwm1_auto_point2_pwm, 0, PRI_LOW, 0x38, 0, 0, 0, u8), |
| 982 | PWRITE(pwm2_auto_point2_pwm, 1, PRI_LOW, 0x39, 0, 0, 0, u8), |
| 983 | PWRITE(pwm3_auto_point2_pwm, 2, PRI_LOW, 0x3a, 0, 0, 0, u8), |
| 984 | |
| 985 | PWRITE(pwm1_freq, 0, PRI_LOW, 0x5f, 0, 0x0f, 0, pwm_freq), |
| 986 | PWRITE(pwm2_freq, 1, PRI_LOW, 0x60, 0, 0x0f, 0, pwm_freq), |
| 987 | PWRITE(pwm3_freq, 2, PRI_LOW, 0x61, 0, 0x0f, 0, pwm_freq), |
| 988 | |
| 989 | PREAD(pwm1_auto_zone_assigned, 0, PRI_LOW, 0, 0, 0x03, 2, bitmask), |
| 990 | PREAD(pwm2_auto_zone_assigned, 1, PRI_LOW, 0, 0, 0x03, 4, bitmask), |
| 991 | PREAD(pwm3_auto_zone_assigned, 2, PRI_LOW, 0, 0, 0x03, 6, bitmask), |
| 992 | |
| 993 | PWRITE(pwm1_auto_spinup_time, 0, PRI_LOW, 0x5c, 0, 0x07, 0, pwm_ast), |
| 994 | PWRITE(pwm2_auto_spinup_time, 1, PRI_LOW, 0x5d, 0, 0x07, 0, pwm_ast), |
| 995 | PWRITE(pwm3_auto_spinup_time, 2, PRI_LOW, 0x5e, 0, 0x07, 0, pwm_ast), |
| 996 | |
| 997 | PWRITE(peci_enable, 0, PRI_LOW, 0x40, 0, 0x01, 4, bitmask), |
| 998 | PWRITE(peci_avg, 0, PRI_LOW, 0x36, 0, 0x07, 0, bitmask), |
| 999 | PWRITE(peci_domain, 0, PRI_LOW, 0x36, 0, 0x01, 3, bitmask), |
| 1000 | PWRITE(peci_legacy, 0, PRI_LOW, 0x36, 0, 0x01, 4, bitmask), |
| 1001 | PWRITE(peci_diode, 0, PRI_LOW, 0x0e, 0, 0x07, 4, bitmask), |
| 1002 | PWRITE(peci_4domain, 0, PRI_LOW, 0x0e, 0, 0x01, 4, bitmask), |
| 1003 | |
| 1004 | }; |
| 1005 | |
| 1006 | static struct asc7621_data *asc7621_update_device(struct device *dev) |
| 1007 | { |
| 1008 | struct i2c_client *client = to_i2c_client(dev); |
| 1009 | struct asc7621_data *data = i2c_get_clientdata(client); |
| 1010 | int i; |
| 1011 | |
| 1012 | /* |
| 1013 | * The asc7621 chips guarantee consistent reads of multi-byte values |
| 1014 | * regardless of the order of the reads. No special logic is needed |
| 1015 | * so we can just read the registers in whatever order they appear |
| 1016 | * in the asc7621_params array. |
| 1017 | */ |
| 1018 | |
| 1019 | mutex_lock(&data->update_lock); |
| 1020 | |
| 1021 | /* Read all the high priority registers */ |
| 1022 | |
| 1023 | if (!data->valid || |
| 1024 | time_after(jiffies, data->last_high_reading + INTERVAL_HIGH)) { |
| 1025 | |
| 1026 | for (i = 0; i < ARRAY_SIZE(asc7621_register_priorities); i++) { |
| 1027 | if (asc7621_register_priorities[i] == PRI_HIGH) { |
| 1028 | data->reg[i] = |
| 1029 | i2c_smbus_read_byte_data(client, i) & 0xff; |
| 1030 | } |
| 1031 | } |
| 1032 | data->last_high_reading = jiffies; |
Guenter Roeck | a039371 | 2013-03-29 13:54:50 -0700 | [diff] [blame] | 1033 | } /* last_reading */ |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 1034 | |
| 1035 | /* Read all the low priority registers. */ |
| 1036 | |
| 1037 | if (!data->valid || |
| 1038 | time_after(jiffies, data->last_low_reading + INTERVAL_LOW)) { |
| 1039 | |
| 1040 | for (i = 0; i < ARRAY_SIZE(asc7621_params); i++) { |
| 1041 | if (asc7621_register_priorities[i] == PRI_LOW) { |
| 1042 | data->reg[i] = |
| 1043 | i2c_smbus_read_byte_data(client, i) & 0xff; |
| 1044 | } |
| 1045 | } |
| 1046 | data->last_low_reading = jiffies; |
Guenter Roeck | a039371 | 2013-03-29 13:54:50 -0700 | [diff] [blame] | 1047 | } /* last_reading */ |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 1048 | |
| 1049 | data->valid = 1; |
| 1050 | |
| 1051 | mutex_unlock(&data->update_lock); |
| 1052 | |
| 1053 | return data; |
| 1054 | } |
| 1055 | |
| 1056 | /* |
| 1057 | * Standard detection and initialization below |
| 1058 | * |
| 1059 | * Helper function that checks if an address is valid |
| 1060 | * for a particular chip. |
| 1061 | */ |
| 1062 | |
| 1063 | static inline int valid_address_for_chip(int chip_type, int address) |
| 1064 | { |
| 1065 | int i; |
| 1066 | |
| 1067 | for (i = 0; asc7621_chips[chip_type].addresses[i] != I2C_CLIENT_END; |
| 1068 | i++) { |
| 1069 | if (asc7621_chips[chip_type].addresses[i] == address) |
| 1070 | return 1; |
| 1071 | } |
| 1072 | return 0; |
| 1073 | } |
| 1074 | |
| 1075 | static void asc7621_init_client(struct i2c_client *client) |
| 1076 | { |
| 1077 | int value; |
| 1078 | |
| 1079 | /* Warn if part was not "READY" */ |
| 1080 | |
| 1081 | value = read_byte(client, 0x40); |
| 1082 | |
| 1083 | if (value & 0x02) { |
| 1084 | dev_err(&client->dev, |
| 1085 | "Client (%d,0x%02x) config is locked.\n", |
| 1086 | i2c_adapter_id(client->adapter), client->addr); |
Guenter Roeck | a039371 | 2013-03-29 13:54:50 -0700 | [diff] [blame] | 1087 | } |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 1088 | if (!(value & 0x04)) { |
| 1089 | dev_err(&client->dev, "Client (%d,0x%02x) is not ready.\n", |
| 1090 | i2c_adapter_id(client->adapter), client->addr); |
Guenter Roeck | a039371 | 2013-03-29 13:54:50 -0700 | [diff] [blame] | 1091 | } |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 1092 | |
| 1093 | /* |
| 1094 | * Start monitoring |
| 1095 | * |
| 1096 | * Try to clear LOCK, Set START, save everything else |
| 1097 | */ |
| 1098 | value = (value & ~0x02) | 0x01; |
| 1099 | write_byte(client, 0x40, value & 0xff); |
| 1100 | |
| 1101 | } |
| 1102 | |
| 1103 | static int |
| 1104 | asc7621_probe(struct i2c_client *client, const struct i2c_device_id *id) |
| 1105 | { |
| 1106 | struct asc7621_data *data; |
| 1107 | int i, err; |
| 1108 | |
| 1109 | if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA)) |
| 1110 | return -EIO; |
| 1111 | |
Guenter Roeck | 35bb95a | 2012-06-02 09:58:02 -0700 | [diff] [blame] | 1112 | data = devm_kzalloc(&client->dev, sizeof(struct asc7621_data), |
| 1113 | GFP_KERNEL); |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 1114 | if (data == NULL) |
| 1115 | return -ENOMEM; |
| 1116 | |
| 1117 | i2c_set_clientdata(client, data); |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 1118 | mutex_init(&data->update_lock); |
| 1119 | |
| 1120 | /* Initialize the asc7621 chip */ |
| 1121 | asc7621_init_client(client); |
| 1122 | |
| 1123 | /* Create the sysfs entries */ |
| 1124 | for (i = 0; i < ARRAY_SIZE(asc7621_params); i++) { |
| 1125 | err = |
| 1126 | device_create_file(&client->dev, |
| 1127 | &(asc7621_params[i].sda.dev_attr)); |
| 1128 | if (err) |
| 1129 | goto exit_remove; |
| 1130 | } |
| 1131 | |
| 1132 | data->class_dev = hwmon_device_register(&client->dev); |
| 1133 | if (IS_ERR(data->class_dev)) { |
| 1134 | err = PTR_ERR(data->class_dev); |
| 1135 | goto exit_remove; |
| 1136 | } |
| 1137 | |
| 1138 | return 0; |
| 1139 | |
| 1140 | exit_remove: |
| 1141 | for (i = 0; i < ARRAY_SIZE(asc7621_params); i++) { |
| 1142 | device_remove_file(&client->dev, |
| 1143 | &(asc7621_params[i].sda.dev_attr)); |
| 1144 | } |
| 1145 | |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 1146 | return err; |
| 1147 | } |
| 1148 | |
| 1149 | static int asc7621_detect(struct i2c_client *client, |
| 1150 | struct i2c_board_info *info) |
| 1151 | { |
| 1152 | struct i2c_adapter *adapter = client->adapter; |
| 1153 | int company, verstep, chip_index; |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 1154 | |
| 1155 | if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) |
| 1156 | return -ENODEV; |
| 1157 | |
| 1158 | for (chip_index = FIRST_CHIP; chip_index <= LAST_CHIP; chip_index++) { |
| 1159 | |
| 1160 | if (!valid_address_for_chip(chip_index, client->addr)) |
| 1161 | continue; |
| 1162 | |
| 1163 | company = read_byte(client, |
| 1164 | asc7621_chips[chip_index].company_reg); |
| 1165 | verstep = read_byte(client, |
| 1166 | asc7621_chips[chip_index].verstep_reg); |
| 1167 | |
| 1168 | if (company == asc7621_chips[chip_index].company_id && |
| 1169 | verstep == asc7621_chips[chip_index].verstep_id) { |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 1170 | strlcpy(info->type, asc7621_chips[chip_index].name, |
| 1171 | I2C_NAME_SIZE); |
| 1172 | |
Jean Delvare | 28cbd46 | 2010-08-14 21:08:52 +0200 | [diff] [blame] | 1173 | dev_info(&adapter->dev, "Matched %s at 0x%02x\n", |
| 1174 | asc7621_chips[chip_index].name, client->addr); |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 1175 | return 0; |
| 1176 | } |
| 1177 | } |
| 1178 | |
| 1179 | return -ENODEV; |
| 1180 | } |
| 1181 | |
| 1182 | static int asc7621_remove(struct i2c_client *client) |
| 1183 | { |
| 1184 | struct asc7621_data *data = i2c_get_clientdata(client); |
| 1185 | int i; |
| 1186 | |
| 1187 | hwmon_device_unregister(data->class_dev); |
| 1188 | |
| 1189 | for (i = 0; i < ARRAY_SIZE(asc7621_params); i++) { |
| 1190 | device_remove_file(&client->dev, |
| 1191 | &(asc7621_params[i].sda.dev_attr)); |
| 1192 | } |
| 1193 | |
George Joseph | d58de03 | 2010-03-05 22:17:25 +0100 | [diff] [blame] | 1194 | return 0; |
| 1195 | } |
| 1196 | |
| 1197 | static const struct i2c_device_id asc7621_id[] = { |
| 1198 | {"asc7621", asc7621}, |
| 1199 | {"asc7621a", asc7621a}, |
| 1200 | {}, |
| 1201 | }; |
| 1202 | |
| 1203 | MODULE_DEVICE_TABLE(i2c, asc7621_id); |
| 1204 | |
| 1205 | static struct i2c_driver asc7621_driver = { |
| 1206 | .class = I2C_CLASS_HWMON, |
| 1207 | .driver = { |
| 1208 | .name = "asc7621", |
| 1209 | }, |
| 1210 | .probe = asc7621_probe, |
| 1211 | .remove = asc7621_remove, |
| 1212 | .id_table = asc7621_id, |
| 1213 | .detect = asc7621_detect, |
| 1214 | .address_list = normal_i2c, |
| 1215 | }; |
| 1216 | |
| 1217 | static int __init sm_asc7621_init(void) |
| 1218 | { |
| 1219 | int i, j; |
| 1220 | /* |
| 1221 | * Collect all the registers needed into a single array. |
| 1222 | * This way, if a register isn't actually used for anything, |
| 1223 | * we don't retrieve it. |
| 1224 | */ |
| 1225 | |
| 1226 | for (i = 0; i < ARRAY_SIZE(asc7621_params); i++) { |
| 1227 | for (j = 0; j < ARRAY_SIZE(asc7621_params[i].msb); j++) |
| 1228 | asc7621_register_priorities[asc7621_params[i].msb[j]] = |
| 1229 | asc7621_params[i].priority; |
| 1230 | for (j = 0; j < ARRAY_SIZE(asc7621_params[i].lsb); j++) |
| 1231 | asc7621_register_priorities[asc7621_params[i].lsb[j]] = |
| 1232 | asc7621_params[i].priority; |
| 1233 | } |
| 1234 | return i2c_add_driver(&asc7621_driver); |
| 1235 | } |
| 1236 | |
| 1237 | static void __exit sm_asc7621_exit(void) |
| 1238 | { |
| 1239 | i2c_del_driver(&asc7621_driver); |
| 1240 | } |
| 1241 | |
| 1242 | MODULE_LICENSE("GPL"); |
| 1243 | MODULE_AUTHOR("George Joseph"); |
| 1244 | MODULE_DESCRIPTION("Andigilog aSC7621 and aSC7621a driver"); |
| 1245 | |
| 1246 | module_init(sm_asc7621_init); |
| 1247 | module_exit(sm_asc7621_exit); |