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74ba9207 | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
1da177e4 | 2 | /* |
8c103696 GR |
3 | * asb100.c - Part of lm_sensors, Linux kernel modules for hardware |
4 | * monitoring | |
5 | * | |
6 | * Copyright (C) 2004 Mark M. Hoffman <mhoffman@lightlink.com> | |
7 | * | |
8 | * (derived from w83781d.c) | |
9 | * | |
10 | * Copyright (C) 1998 - 2003 Frodo Looijaard <frodol@dds.nl>, | |
11 | * Philip Edelbrock <phil@netroedge.com>, and | |
12 | * Mark Studebaker <mdsxyz123@yahoo.com> | |
8c103696 | 13 | */ |
1da177e4 LT |
14 | |
15 | /* | |
8c103696 GR |
16 | * This driver supports the hardware sensor chips: Asus ASB100 and |
17 | * ASB100-A "BACH". | |
18 | * | |
19 | * ASB100-A supports pwm1, while plain ASB100 does not. There is no known | |
20 | * way for the driver to tell which one is there. | |
21 | * | |
4101ece3 | 22 | * Chip #vin #fanin #pwm #temp wchipid vendid i2c ISA |
8c103696 GR |
23 | * asb100 7 3 1 4 0x31 0x0694 yes no |
24 | */ | |
1da177e4 | 25 | |
4d630e2b JP |
26 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
27 | ||
1da177e4 LT |
28 | #include <linux/module.h> |
29 | #include <linux/slab.h> | |
30 | #include <linux/i2c.h> | |
943b0830 | 31 | #include <linux/hwmon.h> |
fad33c5f | 32 | #include <linux/hwmon-sysfs.h> |
303760b4 | 33 | #include <linux/hwmon-vid.h> |
943b0830 | 34 | #include <linux/err.h> |
1da177e4 | 35 | #include <linux/init.h> |
ff324094 | 36 | #include <linux/jiffies.h> |
9a61bf63 | 37 | #include <linux/mutex.h> |
1da177e4 LT |
38 | #include "lm75.h" |
39 | ||
1da177e4 | 40 | /* I2C addresses to scan */ |
25e9c86d | 41 | static const unsigned short normal_i2c[] = { 0x2d, I2C_CLIENT_END }; |
1da177e4 | 42 | |
3aed198c JD |
43 | static unsigned short force_subclients[4]; |
44 | module_param_array(force_subclients, short, NULL, 0); | |
b55f3757 GR |
45 | MODULE_PARM_DESC(force_subclients, |
46 | "List of subclient addresses: {bus, clientaddr, subclientaddr1, subclientaddr2}"); | |
1da177e4 LT |
47 | |
48 | /* Voltage IN registers 0-6 */ | |
49 | #define ASB100_REG_IN(nr) (0x20 + (nr)) | |
50 | #define ASB100_REG_IN_MAX(nr) (0x2b + (nr * 2)) | |
51 | #define ASB100_REG_IN_MIN(nr) (0x2c + (nr * 2)) | |
52 | ||
53 | /* FAN IN registers 1-3 */ | |
54 | #define ASB100_REG_FAN(nr) (0x28 + (nr)) | |
55 | #define ASB100_REG_FAN_MIN(nr) (0x3b + (nr)) | |
56 | ||
57 | /* TEMPERATURE registers 1-4 */ | |
58 | static const u16 asb100_reg_temp[] = {0, 0x27, 0x150, 0x250, 0x17}; | |
59 | static const u16 asb100_reg_temp_max[] = {0, 0x39, 0x155, 0x255, 0x18}; | |
60 | static const u16 asb100_reg_temp_hyst[] = {0, 0x3a, 0x153, 0x253, 0x19}; | |
61 | ||
62 | #define ASB100_REG_TEMP(nr) (asb100_reg_temp[nr]) | |
63 | #define ASB100_REG_TEMP_MAX(nr) (asb100_reg_temp_max[nr]) | |
64 | #define ASB100_REG_TEMP_HYST(nr) (asb100_reg_temp_hyst[nr]) | |
65 | ||
66 | #define ASB100_REG_TEMP2_CONFIG 0x0152 | |
67 | #define ASB100_REG_TEMP3_CONFIG 0x0252 | |
68 | ||
69 | ||
70 | #define ASB100_REG_CONFIG 0x40 | |
71 | #define ASB100_REG_ALARM1 0x41 | |
72 | #define ASB100_REG_ALARM2 0x42 | |
73 | #define ASB100_REG_SMIM1 0x43 | |
74 | #define ASB100_REG_SMIM2 0x44 | |
75 | #define ASB100_REG_VID_FANDIV 0x47 | |
76 | #define ASB100_REG_I2C_ADDR 0x48 | |
77 | #define ASB100_REG_CHIPID 0x49 | |
78 | #define ASB100_REG_I2C_SUBADDR 0x4a | |
79 | #define ASB100_REG_PIN 0x4b | |
80 | #define ASB100_REG_IRQ 0x4c | |
81 | #define ASB100_REG_BANK 0x4e | |
82 | #define ASB100_REG_CHIPMAN 0x4f | |
83 | ||
84 | #define ASB100_REG_WCHIPID 0x58 | |
85 | ||
86 | /* bit 7 -> enable, bits 0-3 -> duty cycle */ | |
87 | #define ASB100_REG_PWM1 0x59 | |
88 | ||
8c103696 GR |
89 | /* |
90 | * CONVERSIONS | |
91 | * Rounding and limit checking is only done on the TO_REG variants. | |
92 | */ | |
1da177e4 LT |
93 | |
94 | /* These constants are a guess, consistent w/ w83781d */ | |
8c103696 GR |
95 | #define ASB100_IN_MIN 0 |
96 | #define ASB100_IN_MAX 4080 | |
1da177e4 | 97 | |
8c103696 GR |
98 | /* |
99 | * IN: 1/1000 V (0V to 4.08V) | |
100 | * REG: 16mV/bit | |
101 | */ | |
1da177e4 LT |
102 | static u8 IN_TO_REG(unsigned val) |
103 | { | |
2a844c14 | 104 | unsigned nval = clamp_val(val, ASB100_IN_MIN, ASB100_IN_MAX); |
1da177e4 LT |
105 | return (nval + 8) / 16; |
106 | } | |
107 | ||
108 | static unsigned IN_FROM_REG(u8 reg) | |
109 | { | |
110 | return reg * 16; | |
111 | } | |
112 | ||
113 | static u8 FAN_TO_REG(long rpm, int div) | |
114 | { | |
115 | if (rpm == -1) | |
116 | return 0; | |
117 | if (rpm == 0) | |
118 | return 255; | |
2a844c14 GR |
119 | rpm = clamp_val(rpm, 1, 1000000); |
120 | return clamp_val((1350000 + rpm * div / 2) / (rpm * div), 1, 254); | |
1da177e4 LT |
121 | } |
122 | ||
123 | static int FAN_FROM_REG(u8 val, int div) | |
124 | { | |
8c103696 | 125 | return val == 0 ? -1 : val == 255 ? 0 : 1350000 / (val * div); |
1da177e4 LT |
126 | } |
127 | ||
128 | /* These constants are a guess, consistent w/ w83781d */ | |
8c103696 GR |
129 | #define ASB100_TEMP_MIN -128000 |
130 | #define ASB100_TEMP_MAX 127000 | |
1da177e4 | 131 | |
8c103696 GR |
132 | /* |
133 | * TEMP: 0.001C/bit (-128C to +127C) | |
134 | * REG: 1C/bit, two's complement | |
135 | */ | |
5bfedac0 | 136 | static u8 TEMP_TO_REG(long temp) |
1da177e4 | 137 | { |
2a844c14 | 138 | int ntemp = clamp_val(temp, ASB100_TEMP_MIN, ASB100_TEMP_MAX); |
8c103696 | 139 | ntemp += (ntemp < 0 ? -500 : 500); |
1da177e4 LT |
140 | return (u8)(ntemp / 1000); |
141 | } | |
142 | ||
143 | static int TEMP_FROM_REG(u8 reg) | |
144 | { | |
145 | return (s8)reg * 1000; | |
146 | } | |
147 | ||
8c103696 GR |
148 | /* |
149 | * PWM: 0 - 255 per sensors documentation | |
150 | * REG: (6.25% duty cycle per bit) | |
151 | */ | |
1da177e4 LT |
152 | static u8 ASB100_PWM_TO_REG(int pwm) |
153 | { | |
2a844c14 | 154 | pwm = clamp_val(pwm, 0, 255); |
1da177e4 LT |
155 | return (u8)(pwm / 16); |
156 | } | |
157 | ||
158 | static int ASB100_PWM_FROM_REG(u8 reg) | |
159 | { | |
160 | return reg * 16; | |
161 | } | |
162 | ||
1da177e4 LT |
163 | #define DIV_FROM_REG(val) (1 << (val)) |
164 | ||
8c103696 GR |
165 | /* |
166 | * FAN DIV: 1, 2, 4, or 8 (defaults to 2) | |
167 | * REG: 0, 1, 2, or 3 (respectively) (defaults to 1) | |
168 | */ | |
1da177e4 LT |
169 | static u8 DIV_TO_REG(long val) |
170 | { | |
8c103696 | 171 | return val == 8 ? 3 : val == 4 ? 2 : val == 1 ? 0 : 1; |
1da177e4 LT |
172 | } |
173 | ||
8c103696 GR |
174 | /* |
175 | * For each registered client, we need to keep some data in memory. That | |
176 | * data is pointed to by client->data. The structure itself is | |
177 | * dynamically allocated, at the same time the client itself is allocated. | |
178 | */ | |
1da177e4 | 179 | struct asb100_data { |
1beeffe4 | 180 | struct device *hwmon_dev; |
9a61bf63 | 181 | struct mutex lock; |
1da177e4 | 182 | |
9a61bf63 | 183 | struct mutex update_lock; |
1da177e4 LT |
184 | unsigned long last_updated; /* In jiffies */ |
185 | ||
186 | /* array of 2 pointers to subclients */ | |
187 | struct i2c_client *lm75[2]; | |
188 | ||
189 | char valid; /* !=0 if following fields are valid */ | |
190 | u8 in[7]; /* Register value */ | |
191 | u8 in_max[7]; /* Register value */ | |
192 | u8 in_min[7]; /* Register value */ | |
193 | u8 fan[3]; /* Register value */ | |
194 | u8 fan_min[3]; /* Register value */ | |
195 | u16 temp[4]; /* Register value (0 and 3 are u8 only) */ | |
196 | u16 temp_max[4]; /* Register value (0 and 3 are u8 only) */ | |
197 | u16 temp_hyst[4]; /* Register value (0 and 3 are u8 only) */ | |
198 | u8 fan_div[3]; /* Register encoding, right justified */ | |
199 | u8 pwm; /* Register encoding */ | |
200 | u8 vid; /* Register encoding, combined */ | |
201 | u32 alarms; /* Register encoding, combined */ | |
202 | u8 vrm; | |
203 | }; | |
204 | ||
205 | static int asb100_read_value(struct i2c_client *client, u16 reg); | |
206 | static void asb100_write_value(struct i2c_client *client, u16 reg, u16 val); | |
207 | ||
063675b1 JD |
208 | static int asb100_probe(struct i2c_client *client, |
209 | const struct i2c_device_id *id); | |
310ec792 | 210 | static int asb100_detect(struct i2c_client *client, |
063675b1 JD |
211 | struct i2c_board_info *info); |
212 | static int asb100_remove(struct i2c_client *client); | |
1da177e4 LT |
213 | static struct asb100_data *asb100_update_device(struct device *dev); |
214 | static void asb100_init_client(struct i2c_client *client); | |
215 | ||
063675b1 | 216 | static const struct i2c_device_id asb100_id[] = { |
1f86df49 | 217 | { "asb100", 0 }, |
063675b1 JD |
218 | { } |
219 | }; | |
220 | MODULE_DEVICE_TABLE(i2c, asb100_id); | |
221 | ||
1da177e4 | 222 | static struct i2c_driver asb100_driver = { |
063675b1 | 223 | .class = I2C_CLASS_HWMON, |
cdaf7934 | 224 | .driver = { |
cdaf7934 LR |
225 | .name = "asb100", |
226 | }, | |
063675b1 JD |
227 | .probe = asb100_probe, |
228 | .remove = asb100_remove, | |
229 | .id_table = asb100_id, | |
230 | .detect = asb100_detect, | |
c3813d6a | 231 | .address_list = normal_i2c, |
1da177e4 LT |
232 | }; |
233 | ||
234 | /* 7 Voltages */ | |
235 | #define show_in_reg(reg) \ | |
fad33c5f JD |
236 | static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \ |
237 | char *buf) \ | |
1da177e4 | 238 | { \ |
fad33c5f | 239 | int nr = to_sensor_dev_attr(attr)->index; \ |
1da177e4 LT |
240 | struct asb100_data *data = asb100_update_device(dev); \ |
241 | return sprintf(buf, "%d\n", IN_FROM_REG(data->reg[nr])); \ | |
242 | } | |
243 | ||
244 | show_in_reg(in) | |
245 | show_in_reg(in_min) | |
246 | show_in_reg(in_max) | |
247 | ||
248 | #define set_in_reg(REG, reg) \ | |
fad33c5f JD |
249 | static ssize_t set_in_##reg(struct device *dev, struct device_attribute *attr, \ |
250 | const char *buf, size_t count) \ | |
1da177e4 | 251 | { \ |
fad33c5f | 252 | int nr = to_sensor_dev_attr(attr)->index; \ |
1da177e4 LT |
253 | struct i2c_client *client = to_i2c_client(dev); \ |
254 | struct asb100_data *data = i2c_get_clientdata(client); \ | |
8c103696 GR |
255 | unsigned long val; \ |
256 | int err = kstrtoul(buf, 10, &val); \ | |
257 | if (err) \ | |
258 | return err; \ | |
9a61bf63 | 259 | mutex_lock(&data->update_lock); \ |
1da177e4 LT |
260 | data->in_##reg[nr] = IN_TO_REG(val); \ |
261 | asb100_write_value(client, ASB100_REG_IN_##REG(nr), \ | |
262 | data->in_##reg[nr]); \ | |
9a61bf63 | 263 | mutex_unlock(&data->update_lock); \ |
1da177e4 LT |
264 | return count; \ |
265 | } | |
266 | ||
267 | set_in_reg(MIN, min) | |
268 | set_in_reg(MAX, max) | |
269 | ||
270 | #define sysfs_in(offset) \ | |
fad33c5f JD |
271 | static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, \ |
272 | show_in, NULL, offset); \ | |
273 | static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \ | |
274 | show_in_min, set_in_min, offset); \ | |
275 | static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \ | |
276 | show_in_max, set_in_max, offset) | |
1da177e4 LT |
277 | |
278 | sysfs_in(0); | |
279 | sysfs_in(1); | |
280 | sysfs_in(2); | |
281 | sysfs_in(3); | |
282 | sysfs_in(4); | |
283 | sysfs_in(5); | |
284 | sysfs_in(6); | |
285 | ||
1da177e4 | 286 | /* 3 Fans */ |
fad33c5f JD |
287 | static ssize_t show_fan(struct device *dev, struct device_attribute *attr, |
288 | char *buf) | |
1da177e4 | 289 | { |
fad33c5f | 290 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
291 | struct asb100_data *data = asb100_update_device(dev); |
292 | return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[nr], | |
293 | DIV_FROM_REG(data->fan_div[nr]))); | |
294 | } | |
295 | ||
fad33c5f JD |
296 | static ssize_t show_fan_min(struct device *dev, struct device_attribute *attr, |
297 | char *buf) | |
1da177e4 | 298 | { |
fad33c5f | 299 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
300 | struct asb100_data *data = asb100_update_device(dev); |
301 | return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[nr], | |
302 | DIV_FROM_REG(data->fan_div[nr]))); | |
303 | } | |
304 | ||
fad33c5f JD |
305 | static ssize_t show_fan_div(struct device *dev, struct device_attribute *attr, |
306 | char *buf) | |
1da177e4 | 307 | { |
fad33c5f | 308 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
309 | struct asb100_data *data = asb100_update_device(dev); |
310 | return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[nr])); | |
311 | } | |
312 | ||
fad33c5f JD |
313 | static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr, |
314 | const char *buf, size_t count) | |
1da177e4 | 315 | { |
fad33c5f | 316 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
317 | struct i2c_client *client = to_i2c_client(dev); |
318 | struct asb100_data *data = i2c_get_clientdata(client); | |
8c103696 GR |
319 | unsigned long val; |
320 | int err; | |
321 | ||
322 | err = kstrtoul(buf, 10, &val); | |
323 | if (err) | |
324 | return err; | |
1da177e4 | 325 | |
9a61bf63 | 326 | mutex_lock(&data->update_lock); |
1da177e4 LT |
327 | data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr])); |
328 | asb100_write_value(client, ASB100_REG_FAN_MIN(nr), data->fan_min[nr]); | |
9a61bf63 | 329 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
330 | return count; |
331 | } | |
332 | ||
8c103696 GR |
333 | /* |
334 | * Note: we save and restore the fan minimum here, because its value is | |
335 | * determined in part by the fan divisor. This follows the principle of | |
336 | * least surprise; the user doesn't expect the fan minimum to change just | |
337 | * because the divisor changed. | |
338 | */ | |
fad33c5f JD |
339 | static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr, |
340 | const char *buf, size_t count) | |
1da177e4 | 341 | { |
fad33c5f | 342 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
343 | struct i2c_client *client = to_i2c_client(dev); |
344 | struct asb100_data *data = i2c_get_clientdata(client); | |
345 | unsigned long min; | |
1da177e4 | 346 | int reg; |
8c103696 GR |
347 | unsigned long val; |
348 | int err; | |
349 | ||
350 | err = kstrtoul(buf, 10, &val); | |
351 | if (err) | |
352 | return err; | |
af221931 | 353 | |
9a61bf63 | 354 | mutex_lock(&data->update_lock); |
1da177e4 LT |
355 | |
356 | min = FAN_FROM_REG(data->fan_min[nr], | |
357 | DIV_FROM_REG(data->fan_div[nr])); | |
358 | data->fan_div[nr] = DIV_TO_REG(val); | |
359 | ||
af221931 | 360 | switch (nr) { |
1da177e4 LT |
361 | case 0: /* fan 1 */ |
362 | reg = asb100_read_value(client, ASB100_REG_VID_FANDIV); | |
363 | reg = (reg & 0xcf) | (data->fan_div[0] << 4); | |
364 | asb100_write_value(client, ASB100_REG_VID_FANDIV, reg); | |
365 | break; | |
366 | ||
367 | case 1: /* fan 2 */ | |
368 | reg = asb100_read_value(client, ASB100_REG_VID_FANDIV); | |
369 | reg = (reg & 0x3f) | (data->fan_div[1] << 6); | |
370 | asb100_write_value(client, ASB100_REG_VID_FANDIV, reg); | |
371 | break; | |
372 | ||
373 | case 2: /* fan 3 */ | |
374 | reg = asb100_read_value(client, ASB100_REG_PIN); | |
375 | reg = (reg & 0x3f) | (data->fan_div[2] << 6); | |
376 | asb100_write_value(client, ASB100_REG_PIN, reg); | |
377 | break; | |
378 | } | |
379 | ||
380 | data->fan_min[nr] = | |
381 | FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr])); | |
382 | asb100_write_value(client, ASB100_REG_FAN_MIN(nr), data->fan_min[nr]); | |
383 | ||
9a61bf63 | 384 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
385 | |
386 | return count; | |
387 | } | |
388 | ||
389 | #define sysfs_fan(offset) \ | |
fad33c5f JD |
390 | static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, \ |
391 | show_fan, NULL, offset - 1); \ | |
392 | static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \ | |
393 | show_fan_min, set_fan_min, offset - 1); \ | |
394 | static SENSOR_DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR, \ | |
395 | show_fan_div, set_fan_div, offset - 1) | |
1da177e4 LT |
396 | |
397 | sysfs_fan(1); | |
398 | sysfs_fan(2); | |
399 | sysfs_fan(3); | |
400 | ||
1da177e4 LT |
401 | /* 4 Temp. Sensors */ |
402 | static int sprintf_temp_from_reg(u16 reg, char *buf, int nr) | |
403 | { | |
404 | int ret = 0; | |
405 | ||
406 | switch (nr) { | |
407 | case 1: case 2: | |
408 | ret = sprintf(buf, "%d\n", LM75_TEMP_FROM_REG(reg)); | |
409 | break; | |
410 | case 0: case 3: default: | |
411 | ret = sprintf(buf, "%d\n", TEMP_FROM_REG(reg)); | |
412 | break; | |
413 | } | |
414 | return ret; | |
415 | } | |
af221931 | 416 | |
1da177e4 | 417 | #define show_temp_reg(reg) \ |
fad33c5f JD |
418 | static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \ |
419 | char *buf) \ | |
1da177e4 | 420 | { \ |
fad33c5f | 421 | int nr = to_sensor_dev_attr(attr)->index; \ |
1da177e4 LT |
422 | struct asb100_data *data = asb100_update_device(dev); \ |
423 | return sprintf_temp_from_reg(data->reg[nr], buf, nr); \ | |
424 | } | |
425 | ||
426 | show_temp_reg(temp); | |
427 | show_temp_reg(temp_max); | |
428 | show_temp_reg(temp_hyst); | |
429 | ||
430 | #define set_temp_reg(REG, reg) \ | |
fad33c5f JD |
431 | static ssize_t set_##reg(struct device *dev, struct device_attribute *attr, \ |
432 | const char *buf, size_t count) \ | |
1da177e4 | 433 | { \ |
fad33c5f | 434 | int nr = to_sensor_dev_attr(attr)->index; \ |
1da177e4 LT |
435 | struct i2c_client *client = to_i2c_client(dev); \ |
436 | struct asb100_data *data = i2c_get_clientdata(client); \ | |
8c103696 GR |
437 | long val; \ |
438 | int err = kstrtol(buf, 10, &val); \ | |
439 | if (err) \ | |
440 | return err; \ | |
9a61bf63 | 441 | mutex_lock(&data->update_lock); \ |
1da177e4 LT |
442 | switch (nr) { \ |
443 | case 1: case 2: \ | |
444 | data->reg[nr] = LM75_TEMP_TO_REG(val); \ | |
445 | break; \ | |
446 | case 0: case 3: default: \ | |
447 | data->reg[nr] = TEMP_TO_REG(val); \ | |
448 | break; \ | |
449 | } \ | |
450 | asb100_write_value(client, ASB100_REG_TEMP_##REG(nr+1), \ | |
451 | data->reg[nr]); \ | |
9a61bf63 | 452 | mutex_unlock(&data->update_lock); \ |
1da177e4 LT |
453 | return count; \ |
454 | } | |
455 | ||
456 | set_temp_reg(MAX, temp_max); | |
457 | set_temp_reg(HYST, temp_hyst); | |
458 | ||
459 | #define sysfs_temp(num) \ | |
fad33c5f JD |
460 | static SENSOR_DEVICE_ATTR(temp##num##_input, S_IRUGO, \ |
461 | show_temp, NULL, num - 1); \ | |
462 | static SENSOR_DEVICE_ATTR(temp##num##_max, S_IRUGO | S_IWUSR, \ | |
463 | show_temp_max, set_temp_max, num - 1); \ | |
464 | static SENSOR_DEVICE_ATTR(temp##num##_max_hyst, S_IRUGO | S_IWUSR, \ | |
465 | show_temp_hyst, set_temp_hyst, num - 1) | |
1da177e4 LT |
466 | |
467 | sysfs_temp(1); | |
468 | sysfs_temp(2); | |
469 | sysfs_temp(3); | |
470 | sysfs_temp(4); | |
471 | ||
472 | /* VID */ | |
82e73f7f JL |
473 | static ssize_t cpu0_vid_show(struct device *dev, |
474 | struct device_attribute *attr, char *buf) | |
1da177e4 LT |
475 | { |
476 | struct asb100_data *data = asb100_update_device(dev); | |
477 | return sprintf(buf, "%d\n", vid_from_reg(data->vid, data->vrm)); | |
478 | } | |
479 | ||
82e73f7f | 480 | static DEVICE_ATTR_RO(cpu0_vid); |
1da177e4 LT |
481 | |
482 | /* VRM */ | |
82e73f7f | 483 | static ssize_t vrm_show(struct device *dev, struct device_attribute *attr, |
af221931 | 484 | char *buf) |
1da177e4 | 485 | { |
90d6619a | 486 | struct asb100_data *data = dev_get_drvdata(dev); |
1da177e4 LT |
487 | return sprintf(buf, "%d\n", data->vrm); |
488 | } | |
489 | ||
82e73f7f JL |
490 | static ssize_t vrm_store(struct device *dev, struct device_attribute *attr, |
491 | const char *buf, size_t count) | |
1da177e4 | 492 | { |
8f74efe8 | 493 | struct asb100_data *data = dev_get_drvdata(dev); |
8c103696 GR |
494 | unsigned long val; |
495 | int err; | |
496 | ||
497 | err = kstrtoul(buf, 10, &val); | |
498 | if (err) | |
499 | return err; | |
db59ac43 AL |
500 | |
501 | if (val > 255) | |
502 | return -EINVAL; | |
503 | ||
8c103696 | 504 | data->vrm = val; |
1da177e4 LT |
505 | return count; |
506 | } | |
507 | ||
508 | /* Alarms */ | |
82e73f7f | 509 | static DEVICE_ATTR_RW(vrm); |
1da177e4 | 510 | |
82e73f7f | 511 | static ssize_t alarms_show(struct device *dev, struct device_attribute *attr, |
af221931 | 512 | char *buf) |
1da177e4 LT |
513 | { |
514 | struct asb100_data *data = asb100_update_device(dev); | |
68188ba7 | 515 | return sprintf(buf, "%u\n", data->alarms); |
1da177e4 LT |
516 | } |
517 | ||
82e73f7f | 518 | static DEVICE_ATTR_RO(alarms); |
1da177e4 | 519 | |
636866b9 JD |
520 | static ssize_t show_alarm(struct device *dev, struct device_attribute *attr, |
521 | char *buf) | |
522 | { | |
523 | int bitnr = to_sensor_dev_attr(attr)->index; | |
524 | struct asb100_data *data = asb100_update_device(dev); | |
525 | return sprintf(buf, "%u\n", (data->alarms >> bitnr) & 1); | |
526 | } | |
527 | static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0); | |
528 | static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1); | |
529 | static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2); | |
530 | static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3); | |
531 | static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 8); | |
532 | static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 6); | |
533 | static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 7); | |
534 | static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 11); | |
535 | static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4); | |
536 | static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 5); | |
537 | static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 13); | |
538 | ||
1da177e4 | 539 | /* 1 PWM */ |
82e73f7f | 540 | static ssize_t pwm1_show(struct device *dev, struct device_attribute *attr, |
af221931 | 541 | char *buf) |
1da177e4 LT |
542 | { |
543 | struct asb100_data *data = asb100_update_device(dev); | |
544 | return sprintf(buf, "%d\n", ASB100_PWM_FROM_REG(data->pwm & 0x0f)); | |
545 | } | |
546 | ||
82e73f7f JL |
547 | static ssize_t pwm1_store(struct device *dev, struct device_attribute *attr, |
548 | const char *buf, size_t count) | |
1da177e4 LT |
549 | { |
550 | struct i2c_client *client = to_i2c_client(dev); | |
551 | struct asb100_data *data = i2c_get_clientdata(client); | |
8c103696 GR |
552 | unsigned long val; |
553 | int err; | |
554 | ||
555 | err = kstrtoul(buf, 10, &val); | |
556 | if (err) | |
557 | return err; | |
1da177e4 | 558 | |
9a61bf63 | 559 | mutex_lock(&data->update_lock); |
1da177e4 LT |
560 | data->pwm &= 0x80; /* keep the enable bit */ |
561 | data->pwm |= (0x0f & ASB100_PWM_TO_REG(val)); | |
562 | asb100_write_value(client, ASB100_REG_PWM1, data->pwm); | |
9a61bf63 | 563 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
564 | return count; |
565 | } | |
566 | ||
82e73f7f | 567 | static ssize_t pwm1_enable_show(struct device *dev, |
af221931 | 568 | struct device_attribute *attr, char *buf) |
1da177e4 LT |
569 | { |
570 | struct asb100_data *data = asb100_update_device(dev); | |
571 | return sprintf(buf, "%d\n", (data->pwm & 0x80) ? 1 : 0); | |
572 | } | |
573 | ||
82e73f7f JL |
574 | static ssize_t pwm1_enable_store(struct device *dev, |
575 | struct device_attribute *attr, | |
576 | const char *buf, size_t count) | |
1da177e4 LT |
577 | { |
578 | struct i2c_client *client = to_i2c_client(dev); | |
579 | struct asb100_data *data = i2c_get_clientdata(client); | |
8c103696 GR |
580 | unsigned long val; |
581 | int err; | |
582 | ||
583 | err = kstrtoul(buf, 10, &val); | |
584 | if (err) | |
585 | return err; | |
1da177e4 | 586 | |
9a61bf63 | 587 | mutex_lock(&data->update_lock); |
1da177e4 LT |
588 | data->pwm &= 0x0f; /* keep the duty cycle bits */ |
589 | data->pwm |= (val ? 0x80 : 0x00); | |
590 | asb100_write_value(client, ASB100_REG_PWM1, data->pwm); | |
9a61bf63 | 591 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
592 | return count; |
593 | } | |
594 | ||
82e73f7f JL |
595 | static DEVICE_ATTR_RW(pwm1); |
596 | static DEVICE_ATTR_RW(pwm1_enable); | |
c1685f61 MH |
597 | |
598 | static struct attribute *asb100_attributes[] = { | |
fad33c5f JD |
599 | &sensor_dev_attr_in0_input.dev_attr.attr, |
600 | &sensor_dev_attr_in0_min.dev_attr.attr, | |
601 | &sensor_dev_attr_in0_max.dev_attr.attr, | |
602 | &sensor_dev_attr_in1_input.dev_attr.attr, | |
603 | &sensor_dev_attr_in1_min.dev_attr.attr, | |
604 | &sensor_dev_attr_in1_max.dev_attr.attr, | |
605 | &sensor_dev_attr_in2_input.dev_attr.attr, | |
606 | &sensor_dev_attr_in2_min.dev_attr.attr, | |
607 | &sensor_dev_attr_in2_max.dev_attr.attr, | |
608 | &sensor_dev_attr_in3_input.dev_attr.attr, | |
609 | &sensor_dev_attr_in3_min.dev_attr.attr, | |
610 | &sensor_dev_attr_in3_max.dev_attr.attr, | |
611 | &sensor_dev_attr_in4_input.dev_attr.attr, | |
612 | &sensor_dev_attr_in4_min.dev_attr.attr, | |
613 | &sensor_dev_attr_in4_max.dev_attr.attr, | |
614 | &sensor_dev_attr_in5_input.dev_attr.attr, | |
615 | &sensor_dev_attr_in5_min.dev_attr.attr, | |
616 | &sensor_dev_attr_in5_max.dev_attr.attr, | |
617 | &sensor_dev_attr_in6_input.dev_attr.attr, | |
618 | &sensor_dev_attr_in6_min.dev_attr.attr, | |
619 | &sensor_dev_attr_in6_max.dev_attr.attr, | |
620 | ||
621 | &sensor_dev_attr_fan1_input.dev_attr.attr, | |
622 | &sensor_dev_attr_fan1_min.dev_attr.attr, | |
623 | &sensor_dev_attr_fan1_div.dev_attr.attr, | |
624 | &sensor_dev_attr_fan2_input.dev_attr.attr, | |
625 | &sensor_dev_attr_fan2_min.dev_attr.attr, | |
626 | &sensor_dev_attr_fan2_div.dev_attr.attr, | |
627 | &sensor_dev_attr_fan3_input.dev_attr.attr, | |
628 | &sensor_dev_attr_fan3_min.dev_attr.attr, | |
629 | &sensor_dev_attr_fan3_div.dev_attr.attr, | |
630 | ||
631 | &sensor_dev_attr_temp1_input.dev_attr.attr, | |
632 | &sensor_dev_attr_temp1_max.dev_attr.attr, | |
633 | &sensor_dev_attr_temp1_max_hyst.dev_attr.attr, | |
634 | &sensor_dev_attr_temp2_input.dev_attr.attr, | |
635 | &sensor_dev_attr_temp2_max.dev_attr.attr, | |
636 | &sensor_dev_attr_temp2_max_hyst.dev_attr.attr, | |
637 | &sensor_dev_attr_temp3_input.dev_attr.attr, | |
638 | &sensor_dev_attr_temp3_max.dev_attr.attr, | |
639 | &sensor_dev_attr_temp3_max_hyst.dev_attr.attr, | |
640 | &sensor_dev_attr_temp4_input.dev_attr.attr, | |
641 | &sensor_dev_attr_temp4_max.dev_attr.attr, | |
642 | &sensor_dev_attr_temp4_max_hyst.dev_attr.attr, | |
c1685f61 | 643 | |
636866b9 JD |
644 | &sensor_dev_attr_in0_alarm.dev_attr.attr, |
645 | &sensor_dev_attr_in1_alarm.dev_attr.attr, | |
646 | &sensor_dev_attr_in2_alarm.dev_attr.attr, | |
647 | &sensor_dev_attr_in3_alarm.dev_attr.attr, | |
648 | &sensor_dev_attr_in4_alarm.dev_attr.attr, | |
649 | &sensor_dev_attr_fan1_alarm.dev_attr.attr, | |
650 | &sensor_dev_attr_fan2_alarm.dev_attr.attr, | |
651 | &sensor_dev_attr_fan3_alarm.dev_attr.attr, | |
652 | &sensor_dev_attr_temp1_alarm.dev_attr.attr, | |
653 | &sensor_dev_attr_temp2_alarm.dev_attr.attr, | |
654 | &sensor_dev_attr_temp3_alarm.dev_attr.attr, | |
655 | ||
c1685f61 MH |
656 | &dev_attr_cpu0_vid.attr, |
657 | &dev_attr_vrm.attr, | |
658 | &dev_attr_alarms.attr, | |
659 | &dev_attr_pwm1.attr, | |
660 | &dev_attr_pwm1_enable.attr, | |
661 | ||
662 | NULL | |
663 | }; | |
664 | ||
665 | static const struct attribute_group asb100_group = { | |
666 | .attrs = asb100_attributes, | |
667 | }; | |
1da177e4 | 668 | |
063675b1 | 669 | static int asb100_detect_subclients(struct i2c_client *client) |
1da177e4 LT |
670 | { |
671 | int i, id, err; | |
063675b1 JD |
672 | int address = client->addr; |
673 | unsigned short sc_addr[2]; | |
af221931 | 674 | struct asb100_data *data = i2c_get_clientdata(client); |
063675b1 | 675 | struct i2c_adapter *adapter = client->adapter; |
1da177e4 LT |
676 | |
677 | id = i2c_adapter_id(adapter); | |
678 | ||
679 | if (force_subclients[0] == id && force_subclients[1] == address) { | |
680 | for (i = 2; i <= 3; i++) { | |
681 | if (force_subclients[i] < 0x48 || | |
682 | force_subclients[i] > 0x4f) { | |
b55f3757 GR |
683 | dev_err(&client->dev, |
684 | "invalid subclient address %d; must be 0x48-0x4f\n", | |
1da177e4 LT |
685 | force_subclients[i]); |
686 | err = -ENODEV; | |
687 | goto ERROR_SC_2; | |
688 | } | |
689 | } | |
af221931 | 690 | asb100_write_value(client, ASB100_REG_I2C_SUBADDR, |
1da177e4 | 691 | (force_subclients[2] & 0x07) | |
af221931 | 692 | ((force_subclients[3] & 0x07) << 4)); |
063675b1 JD |
693 | sc_addr[0] = force_subclients[2]; |
694 | sc_addr[1] = force_subclients[3]; | |
1da177e4 | 695 | } else { |
af221931 | 696 | int val = asb100_read_value(client, ASB100_REG_I2C_SUBADDR); |
063675b1 JD |
697 | sc_addr[0] = 0x48 + (val & 0x07); |
698 | sc_addr[1] = 0x48 + ((val >> 4) & 0x07); | |
1da177e4 LT |
699 | } |
700 | ||
063675b1 | 701 | if (sc_addr[0] == sc_addr[1]) { |
b55f3757 GR |
702 | dev_err(&client->dev, |
703 | "duplicate addresses 0x%x for subclients\n", | |
704 | sc_addr[0]); | |
1da177e4 LT |
705 | err = -ENODEV; |
706 | goto ERROR_SC_2; | |
707 | } | |
708 | ||
8f9508eb WS |
709 | data->lm75[0] = i2c_new_dummy_device(adapter, sc_addr[0]); |
710 | if (IS_ERR(data->lm75[0])) { | |
b55f3757 GR |
711 | dev_err(&client->dev, |
712 | "subclient %d registration at address 0x%x failed.\n", | |
713 | 1, sc_addr[0]); | |
8f9508eb | 714 | err = PTR_ERR(data->lm75[0]); |
1da177e4 LT |
715 | goto ERROR_SC_2; |
716 | } | |
717 | ||
8f9508eb WS |
718 | data->lm75[1] = i2c_new_dummy_device(adapter, sc_addr[1]); |
719 | if (IS_ERR(data->lm75[1])) { | |
b55f3757 GR |
720 | dev_err(&client->dev, |
721 | "subclient %d registration at address 0x%x failed.\n", | |
722 | 2, sc_addr[1]); | |
8f9508eb | 723 | err = PTR_ERR(data->lm75[1]); |
1da177e4 LT |
724 | goto ERROR_SC_3; |
725 | } | |
726 | ||
727 | return 0; | |
728 | ||
729 | /* Undo inits in case of errors */ | |
730 | ERROR_SC_3: | |
063675b1 | 731 | i2c_unregister_device(data->lm75[0]); |
1da177e4 | 732 | ERROR_SC_2: |
1da177e4 LT |
733 | return err; |
734 | } | |
735 | ||
063675b1 | 736 | /* Return 0 if detection is successful, -ENODEV otherwise */ |
310ec792 | 737 | static int asb100_detect(struct i2c_client *client, |
063675b1 | 738 | struct i2c_board_info *info) |
1da177e4 | 739 | { |
063675b1 | 740 | struct i2c_adapter *adapter = client->adapter; |
52df6440 | 741 | int val1, val2; |
1da177e4 | 742 | |
1da177e4 | 743 | if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) { |
4d630e2b | 744 | pr_debug("detect failed, smbus byte data not supported!\n"); |
063675b1 | 745 | return -ENODEV; |
1da177e4 LT |
746 | } |
747 | ||
52df6440 JD |
748 | val1 = i2c_smbus_read_byte_data(client, ASB100_REG_BANK); |
749 | val2 = i2c_smbus_read_byte_data(client, ASB100_REG_CHIPMAN); | |
1da177e4 | 750 | |
52df6440 JD |
751 | /* If we're in bank 0 */ |
752 | if ((!(val1 & 0x07)) && | |
753 | /* Check for ASB100 ID (low byte) */ | |
754 | (((!(val1 & 0x80)) && (val2 != 0x94)) || | |
755 | /* Check for ASB100 ID (high byte ) */ | |
756 | ((val1 & 0x80) && (val2 != 0x06)))) { | |
4d630e2b | 757 | pr_debug("detect failed, bad chip id 0x%02x!\n", val2); |
52df6440 JD |
758 | return -ENODEV; |
759 | } | |
1da177e4 | 760 | |
52df6440 | 761 | /* Put it now into bank 0 and Vendor ID High Byte */ |
063675b1 JD |
762 | i2c_smbus_write_byte_data(client, ASB100_REG_BANK, |
763 | (i2c_smbus_read_byte_data(client, ASB100_REG_BANK) & 0x78) | |
764 | | 0x80); | |
1da177e4 LT |
765 | |
766 | /* Determine the chip type. */ | |
52df6440 JD |
767 | val1 = i2c_smbus_read_byte_data(client, ASB100_REG_WCHIPID); |
768 | val2 = i2c_smbus_read_byte_data(client, ASB100_REG_CHIPMAN); | |
769 | ||
770 | if (val1 != 0x31 || val2 != 0x06) | |
771 | return -ENODEV; | |
1da177e4 | 772 | |
063675b1 | 773 | strlcpy(info->type, "asb100", I2C_NAME_SIZE); |
1da177e4 | 774 | |
063675b1 JD |
775 | return 0; |
776 | } | |
777 | ||
778 | static int asb100_probe(struct i2c_client *client, | |
779 | const struct i2c_device_id *id) | |
780 | { | |
781 | int err; | |
782 | struct asb100_data *data; | |
783 | ||
64adf398 GR |
784 | data = devm_kzalloc(&client->dev, sizeof(struct asb100_data), |
785 | GFP_KERNEL); | |
786 | if (!data) | |
787 | return -ENOMEM; | |
063675b1 JD |
788 | |
789 | i2c_set_clientdata(client, data); | |
790 | mutex_init(&data->lock); | |
791 | mutex_init(&data->update_lock); | |
1da177e4 LT |
792 | |
793 | /* Attach secondary lm75 clients */ | |
063675b1 JD |
794 | err = asb100_detect_subclients(client); |
795 | if (err) | |
64adf398 | 796 | return err; |
1da177e4 LT |
797 | |
798 | /* Initialize the chip */ | |
af221931 | 799 | asb100_init_client(client); |
1da177e4 LT |
800 | |
801 | /* A few vars need to be filled upon startup */ | |
af221931 JD |
802 | data->fan_min[0] = asb100_read_value(client, ASB100_REG_FAN_MIN(0)); |
803 | data->fan_min[1] = asb100_read_value(client, ASB100_REG_FAN_MIN(1)); | |
804 | data->fan_min[2] = asb100_read_value(client, ASB100_REG_FAN_MIN(2)); | |
1da177e4 LT |
805 | |
806 | /* Register sysfs hooks */ | |
8c103696 GR |
807 | err = sysfs_create_group(&client->dev.kobj, &asb100_group); |
808 | if (err) | |
c1685f61 MH |
809 | goto ERROR3; |
810 | ||
af221931 | 811 | data->hwmon_dev = hwmon_device_register(&client->dev); |
1beeffe4 TJ |
812 | if (IS_ERR(data->hwmon_dev)) { |
813 | err = PTR_ERR(data->hwmon_dev); | |
c1685f61 | 814 | goto ERROR4; |
943b0830 MH |
815 | } |
816 | ||
1da177e4 LT |
817 | return 0; |
818 | ||
c1685f61 | 819 | ERROR4: |
af221931 | 820 | sysfs_remove_group(&client->dev.kobj, &asb100_group); |
943b0830 | 821 | ERROR3: |
063675b1 JD |
822 | i2c_unregister_device(data->lm75[1]); |
823 | i2c_unregister_device(data->lm75[0]); | |
1da177e4 LT |
824 | return err; |
825 | } | |
826 | ||
063675b1 | 827 | static int asb100_remove(struct i2c_client *client) |
1da177e4 | 828 | { |
943b0830 | 829 | struct asb100_data *data = i2c_get_clientdata(client); |
943b0830 | 830 | |
063675b1 JD |
831 | hwmon_device_unregister(data->hwmon_dev); |
832 | sysfs_remove_group(&client->dev.kobj, &asb100_group); | |
1da177e4 | 833 | |
063675b1 JD |
834 | i2c_unregister_device(data->lm75[1]); |
835 | i2c_unregister_device(data->lm75[0]); | |
943b0830 | 836 | |
1da177e4 LT |
837 | return 0; |
838 | } | |
839 | ||
8c103696 GR |
840 | /* |
841 | * The SMBus locks itself, usually, but nothing may access the chip between | |
842 | * bank switches. | |
843 | */ | |
1da177e4 LT |
844 | static int asb100_read_value(struct i2c_client *client, u16 reg) |
845 | { | |
846 | struct asb100_data *data = i2c_get_clientdata(client); | |
847 | struct i2c_client *cl; | |
848 | int res, bank; | |
849 | ||
9a61bf63 | 850 | mutex_lock(&data->lock); |
1da177e4 LT |
851 | |
852 | bank = (reg >> 8) & 0x0f; | |
853 | if (bank > 2) | |
854 | /* switch banks */ | |
855 | i2c_smbus_write_byte_data(client, ASB100_REG_BANK, bank); | |
856 | ||
857 | if (bank == 0 || bank > 2) { | |
858 | res = i2c_smbus_read_byte_data(client, reg & 0xff); | |
859 | } else { | |
860 | /* switch to subclient */ | |
861 | cl = data->lm75[bank - 1]; | |
862 | ||
863 | /* convert from ISA to LM75 I2C addresses */ | |
864 | switch (reg & 0xff) { | |
865 | case 0x50: /* TEMP */ | |
90f4102c | 866 | res = i2c_smbus_read_word_swapped(cl, 0); |
1da177e4 LT |
867 | break; |
868 | case 0x52: /* CONFIG */ | |
869 | res = i2c_smbus_read_byte_data(cl, 1); | |
870 | break; | |
871 | case 0x53: /* HYST */ | |
90f4102c | 872 | res = i2c_smbus_read_word_swapped(cl, 2); |
1da177e4 LT |
873 | break; |
874 | case 0x55: /* MAX */ | |
875 | default: | |
90f4102c | 876 | res = i2c_smbus_read_word_swapped(cl, 3); |
1da177e4 LT |
877 | break; |
878 | } | |
879 | } | |
880 | ||
881 | if (bank > 2) | |
882 | i2c_smbus_write_byte_data(client, ASB100_REG_BANK, 0); | |
883 | ||
9a61bf63 | 884 | mutex_unlock(&data->lock); |
1da177e4 LT |
885 | |
886 | return res; | |
887 | } | |
888 | ||
889 | static void asb100_write_value(struct i2c_client *client, u16 reg, u16 value) | |
890 | { | |
891 | struct asb100_data *data = i2c_get_clientdata(client); | |
892 | struct i2c_client *cl; | |
893 | int bank; | |
894 | ||
9a61bf63 | 895 | mutex_lock(&data->lock); |
1da177e4 LT |
896 | |
897 | bank = (reg >> 8) & 0x0f; | |
898 | if (bank > 2) | |
899 | /* switch banks */ | |
900 | i2c_smbus_write_byte_data(client, ASB100_REG_BANK, bank); | |
901 | ||
902 | if (bank == 0 || bank > 2) { | |
903 | i2c_smbus_write_byte_data(client, reg & 0xff, value & 0xff); | |
904 | } else { | |
905 | /* switch to subclient */ | |
906 | cl = data->lm75[bank - 1]; | |
907 | ||
908 | /* convert from ISA to LM75 I2C addresses */ | |
909 | switch (reg & 0xff) { | |
910 | case 0x52: /* CONFIG */ | |
911 | i2c_smbus_write_byte_data(cl, 1, value & 0xff); | |
912 | break; | |
913 | case 0x53: /* HYST */ | |
90f4102c | 914 | i2c_smbus_write_word_swapped(cl, 2, value); |
1da177e4 LT |
915 | break; |
916 | case 0x55: /* MAX */ | |
90f4102c | 917 | i2c_smbus_write_word_swapped(cl, 3, value); |
1da177e4 LT |
918 | break; |
919 | } | |
920 | } | |
921 | ||
922 | if (bank > 2) | |
923 | i2c_smbus_write_byte_data(client, ASB100_REG_BANK, 0); | |
924 | ||
9a61bf63 | 925 | mutex_unlock(&data->lock); |
1da177e4 LT |
926 | } |
927 | ||
928 | static void asb100_init_client(struct i2c_client *client) | |
929 | { | |
930 | struct asb100_data *data = i2c_get_clientdata(client); | |
1da177e4 | 931 | |
303760b4 | 932 | data->vrm = vid_which_vrm(); |
1da177e4 LT |
933 | |
934 | /* Start monitoring */ | |
af221931 | 935 | asb100_write_value(client, ASB100_REG_CONFIG, |
1da177e4 LT |
936 | (asb100_read_value(client, ASB100_REG_CONFIG) & 0xf7) | 0x01); |
937 | } | |
938 | ||
939 | static struct asb100_data *asb100_update_device(struct device *dev) | |
940 | { | |
941 | struct i2c_client *client = to_i2c_client(dev); | |
942 | struct asb100_data *data = i2c_get_clientdata(client); | |
943 | int i; | |
944 | ||
9a61bf63 | 945 | mutex_lock(&data->update_lock); |
1da177e4 LT |
946 | |
947 | if (time_after(jiffies, data->last_updated + HZ + HZ / 2) | |
948 | || !data->valid) { | |
949 | ||
950 | dev_dbg(&client->dev, "starting device update...\n"); | |
951 | ||
952 | /* 7 voltage inputs */ | |
953 | for (i = 0; i < 7; i++) { | |
954 | data->in[i] = asb100_read_value(client, | |
955 | ASB100_REG_IN(i)); | |
956 | data->in_min[i] = asb100_read_value(client, | |
957 | ASB100_REG_IN_MIN(i)); | |
958 | data->in_max[i] = asb100_read_value(client, | |
959 | ASB100_REG_IN_MAX(i)); | |
960 | } | |
961 | ||
962 | /* 3 fan inputs */ | |
963 | for (i = 0; i < 3; i++) { | |
964 | data->fan[i] = asb100_read_value(client, | |
965 | ASB100_REG_FAN(i)); | |
966 | data->fan_min[i] = asb100_read_value(client, | |
967 | ASB100_REG_FAN_MIN(i)); | |
968 | } | |
969 | ||
970 | /* 4 temperature inputs */ | |
971 | for (i = 1; i <= 4; i++) { | |
972 | data->temp[i-1] = asb100_read_value(client, | |
973 | ASB100_REG_TEMP(i)); | |
974 | data->temp_max[i-1] = asb100_read_value(client, | |
975 | ASB100_REG_TEMP_MAX(i)); | |
976 | data->temp_hyst[i-1] = asb100_read_value(client, | |
977 | ASB100_REG_TEMP_HYST(i)); | |
978 | } | |
979 | ||
980 | /* VID and fan divisors */ | |
981 | i = asb100_read_value(client, ASB100_REG_VID_FANDIV); | |
982 | data->vid = i & 0x0f; | |
983 | data->vid |= (asb100_read_value(client, | |
984 | ASB100_REG_CHIPID) & 0x01) << 4; | |
985 | data->fan_div[0] = (i >> 4) & 0x03; | |
986 | data->fan_div[1] = (i >> 6) & 0x03; | |
987 | data->fan_div[2] = (asb100_read_value(client, | |
988 | ASB100_REG_PIN) >> 6) & 0x03; | |
989 | ||
990 | /* PWM */ | |
991 | data->pwm = asb100_read_value(client, ASB100_REG_PWM1); | |
992 | ||
993 | /* alarms */ | |
994 | data->alarms = asb100_read_value(client, ASB100_REG_ALARM1) + | |
995 | (asb100_read_value(client, ASB100_REG_ALARM2) << 8); | |
996 | ||
997 | data->last_updated = jiffies; | |
998 | data->valid = 1; | |
999 | ||
1000 | dev_dbg(&client->dev, "... device update complete\n"); | |
1001 | } | |
1002 | ||
9a61bf63 | 1003 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
1004 | |
1005 | return data; | |
1006 | } | |
1007 | ||
f0967eea | 1008 | module_i2c_driver(asb100_driver); |
1da177e4 LT |
1009 | |
1010 | MODULE_AUTHOR("Mark M. Hoffman <mhoffman@lightlink.com>"); | |
1011 | MODULE_DESCRIPTION("ASB100 Bach driver"); | |
1012 | MODULE_LICENSE("GPL"); |