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1 | /* | |
2 | w83781d.c - Part of lm_sensors, Linux kernel modules for hardware | |
3 | monitoring | |
4 | Copyright (c) 1998 - 2001 Frodo Looijaard <frodol@dds.nl>, | |
5 | Philip Edelbrock <phil@netroedge.com>, | |
6 | and Mark Studebaker <mdsxyz123@yahoo.com> | |
7 | Copyright (c) 2007 - 2008 Jean Delvare <khali@linux-fr.org> | |
8 | ||
9 | This program is free software; you can redistribute it and/or modify | |
10 | it under the terms of the GNU General Public License as published by | |
11 | the Free Software Foundation; either version 2 of the License, or | |
12 | (at your option) any later version. | |
13 | ||
14 | This program is distributed in the hope that it will be useful, | |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
18 | ||
19 | You should have received a copy of the GNU General Public License | |
20 | along with this program; if not, write to the Free Software | |
21 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
22 | */ | |
23 | ||
24 | /* | |
25 | Supports following chips: | |
26 | ||
27 | Chip #vin #fanin #pwm #temp wchipid vendid i2c ISA | |
28 | as99127f 7 3 0 3 0x31 0x12c3 yes no | |
29 | as99127f rev.2 (type_name = as99127f) 0x31 0x5ca3 yes no | |
30 | w83781d 7 3 0 3 0x10-1 0x5ca3 yes yes | |
31 | w83782d 9 3 2-4 3 0x30 0x5ca3 yes yes | |
32 | w83783s 5-6 3 2 1-2 0x40 0x5ca3 yes no | |
33 | ||
34 | */ | |
35 | ||
36 | #include <linux/module.h> | |
37 | #include <linux/init.h> | |
38 | #include <linux/slab.h> | |
39 | #include <linux/jiffies.h> | |
40 | #include <linux/i2c.h> | |
41 | #include <linux/hwmon.h> | |
42 | #include <linux/hwmon-vid.h> | |
43 | #include <linux/hwmon-sysfs.h> | |
44 | #include <linux/sysfs.h> | |
45 | #include <linux/err.h> | |
46 | #include <linux/mutex.h> | |
47 | ||
48 | #ifdef CONFIG_ISA | |
49 | #include <linux/platform_device.h> | |
50 | #include <linux/ioport.h> | |
51 | #include <asm/io.h> | |
52 | #endif | |
53 | ||
54 | #include "lm75.h" | |
55 | ||
56 | /* Addresses to scan */ | |
57 | static const unsigned short normal_i2c[] = { 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, | |
58 | 0x2e, 0x2f, I2C_CLIENT_END }; | |
59 | /* Insmod parameters */ | |
60 | I2C_CLIENT_INSMOD_4(w83781d, w83782d, w83783s, as99127f); | |
61 | ||
62 | static unsigned short force_subclients[4]; | |
63 | module_param_array(force_subclients, short, NULL, 0); | |
64 | MODULE_PARM_DESC(force_subclients, "List of subclient addresses: " | |
65 | "{bus, clientaddr, subclientaddr1, subclientaddr2}"); | |
66 | ||
67 | static int reset; | |
68 | module_param(reset, bool, 0); | |
69 | MODULE_PARM_DESC(reset, "Set to one to reset chip on load"); | |
70 | ||
71 | static int init = 1; | |
72 | module_param(init, bool, 0); | |
73 | MODULE_PARM_DESC(init, "Set to zero to bypass chip initialization"); | |
74 | ||
75 | /* Constants specified below */ | |
76 | ||
77 | /* Length of ISA address segment */ | |
78 | #define W83781D_EXTENT 8 | |
79 | ||
80 | /* Where are the ISA address/data registers relative to the base address */ | |
81 | #define W83781D_ADDR_REG_OFFSET 5 | |
82 | #define W83781D_DATA_REG_OFFSET 6 | |
83 | ||
84 | /* The device registers */ | |
85 | /* in nr from 0 to 8 */ | |
86 | #define W83781D_REG_IN_MAX(nr) ((nr < 7) ? (0x2b + (nr) * 2) : \ | |
87 | (0x554 + (((nr) - 7) * 2))) | |
88 | #define W83781D_REG_IN_MIN(nr) ((nr < 7) ? (0x2c + (nr) * 2) : \ | |
89 | (0x555 + (((nr) - 7) * 2))) | |
90 | #define W83781D_REG_IN(nr) ((nr < 7) ? (0x20 + (nr)) : \ | |
91 | (0x550 + (nr) - 7)) | |
92 | ||
93 | /* fan nr from 0 to 2 */ | |
94 | #define W83781D_REG_FAN_MIN(nr) (0x3b + (nr)) | |
95 | #define W83781D_REG_FAN(nr) (0x28 + (nr)) | |
96 | ||
97 | #define W83781D_REG_BANK 0x4E | |
98 | #define W83781D_REG_TEMP2_CONFIG 0x152 | |
99 | #define W83781D_REG_TEMP3_CONFIG 0x252 | |
100 | /* temp nr from 1 to 3 */ | |
101 | #define W83781D_REG_TEMP(nr) ((nr == 3) ? (0x0250) : \ | |
102 | ((nr == 2) ? (0x0150) : \ | |
103 | (0x27))) | |
104 | #define W83781D_REG_TEMP_HYST(nr) ((nr == 3) ? (0x253) : \ | |
105 | ((nr == 2) ? (0x153) : \ | |
106 | (0x3A))) | |
107 | #define W83781D_REG_TEMP_OVER(nr) ((nr == 3) ? (0x255) : \ | |
108 | ((nr == 2) ? (0x155) : \ | |
109 | (0x39))) | |
110 | ||
111 | #define W83781D_REG_CONFIG 0x40 | |
112 | ||
113 | /* Interrupt status (W83781D, AS99127F) */ | |
114 | #define W83781D_REG_ALARM1 0x41 | |
115 | #define W83781D_REG_ALARM2 0x42 | |
116 | ||
117 | /* Real-time status (W83782D, W83783S) */ | |
118 | #define W83782D_REG_ALARM1 0x459 | |
119 | #define W83782D_REG_ALARM2 0x45A | |
120 | #define W83782D_REG_ALARM3 0x45B | |
121 | ||
122 | #define W83781D_REG_BEEP_CONFIG 0x4D | |
123 | #define W83781D_REG_BEEP_INTS1 0x56 | |
124 | #define W83781D_REG_BEEP_INTS2 0x57 | |
125 | #define W83781D_REG_BEEP_INTS3 0x453 /* not on W83781D */ | |
126 | ||
127 | #define W83781D_REG_VID_FANDIV 0x47 | |
128 | ||
129 | #define W83781D_REG_CHIPID 0x49 | |
130 | #define W83781D_REG_WCHIPID 0x58 | |
131 | #define W83781D_REG_CHIPMAN 0x4F | |
132 | #define W83781D_REG_PIN 0x4B | |
133 | ||
134 | /* 782D/783S only */ | |
135 | #define W83781D_REG_VBAT 0x5D | |
136 | ||
137 | /* PWM 782D (1-4) and 783S (1-2) only */ | |
138 | static const u8 W83781D_REG_PWM[] = { 0x5B, 0x5A, 0x5E, 0x5F }; | |
139 | #define W83781D_REG_PWMCLK12 0x5C | |
140 | #define W83781D_REG_PWMCLK34 0x45C | |
141 | ||
142 | #define W83781D_REG_I2C_ADDR 0x48 | |
143 | #define W83781D_REG_I2C_SUBADDR 0x4A | |
144 | ||
145 | /* The following are undocumented in the data sheets however we | |
146 | received the information in an email from Winbond tech support */ | |
147 | /* Sensor selection - not on 781d */ | |
148 | #define W83781D_REG_SCFG1 0x5D | |
149 | static const u8 BIT_SCFG1[] = { 0x02, 0x04, 0x08 }; | |
150 | ||
151 | #define W83781D_REG_SCFG2 0x59 | |
152 | static const u8 BIT_SCFG2[] = { 0x10, 0x20, 0x40 }; | |
153 | ||
154 | #define W83781D_DEFAULT_BETA 3435 | |
155 | ||
156 | /* Conversions */ | |
157 | #define IN_TO_REG(val) SENSORS_LIMIT(((val) + 8) / 16, 0, 255) | |
158 | #define IN_FROM_REG(val) ((val) * 16) | |
159 | ||
160 | static inline u8 | |
161 | FAN_TO_REG(long rpm, int div) | |
162 | { | |
163 | if (rpm == 0) | |
164 | return 255; | |
165 | rpm = SENSORS_LIMIT(rpm, 1, 1000000); | |
166 | return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1, 254); | |
167 | } | |
168 | ||
169 | static inline long | |
170 | FAN_FROM_REG(u8 val, int div) | |
171 | { | |
172 | if (val == 0) | |
173 | return -1; | |
174 | if (val == 255) | |
175 | return 0; | |
176 | return 1350000 / (val * div); | |
177 | } | |
178 | ||
179 | #define TEMP_TO_REG(val) SENSORS_LIMIT((val) / 1000, -127, 128) | |
180 | #define TEMP_FROM_REG(val) ((val) * 1000) | |
181 | ||
182 | #define BEEP_MASK_FROM_REG(val,type) ((type) == as99127f ? \ | |
183 | (~(val)) & 0x7fff : (val) & 0xff7fff) | |
184 | #define BEEP_MASK_TO_REG(val,type) ((type) == as99127f ? \ | |
185 | (~(val)) & 0x7fff : (val) & 0xff7fff) | |
186 | ||
187 | #define DIV_FROM_REG(val) (1 << (val)) | |
188 | ||
189 | static inline u8 | |
190 | DIV_TO_REG(long val, enum chips type) | |
191 | { | |
192 | int i; | |
193 | val = SENSORS_LIMIT(val, 1, | |
194 | ((type == w83781d | |
195 | || type == as99127f) ? 8 : 128)) >> 1; | |
196 | for (i = 0; i < 7; i++) { | |
197 | if (val == 0) | |
198 | break; | |
199 | val >>= 1; | |
200 | } | |
201 | return i; | |
202 | } | |
203 | ||
204 | struct w83781d_data { | |
205 | struct i2c_client *client; | |
206 | struct device *hwmon_dev; | |
207 | struct mutex lock; | |
208 | enum chips type; | |
209 | ||
210 | /* For ISA device only */ | |
211 | const char *name; | |
212 | int isa_addr; | |
213 | ||
214 | struct mutex update_lock; | |
215 | char valid; /* !=0 if following fields are valid */ | |
216 | unsigned long last_updated; /* In jiffies */ | |
217 | ||
218 | struct i2c_client *lm75[2]; /* for secondary I2C addresses */ | |
219 | /* array of 2 pointers to subclients */ | |
220 | ||
221 | u8 in[9]; /* Register value - 8 & 9 for 782D only */ | |
222 | u8 in_max[9]; /* Register value - 8 & 9 for 782D only */ | |
223 | u8 in_min[9]; /* Register value - 8 & 9 for 782D only */ | |
224 | u8 fan[3]; /* Register value */ | |
225 | u8 fan_min[3]; /* Register value */ | |
226 | s8 temp; /* Register value */ | |
227 | s8 temp_max; /* Register value */ | |
228 | s8 temp_max_hyst; /* Register value */ | |
229 | u16 temp_add[2]; /* Register value */ | |
230 | u16 temp_max_add[2]; /* Register value */ | |
231 | u16 temp_max_hyst_add[2]; /* Register value */ | |
232 | u8 fan_div[3]; /* Register encoding, shifted right */ | |
233 | u8 vid; /* Register encoding, combined */ | |
234 | u32 alarms; /* Register encoding, combined */ | |
235 | u32 beep_mask; /* Register encoding, combined */ | |
236 | u8 pwm[4]; /* Register value */ | |
237 | u8 pwm2_enable; /* Boolean */ | |
238 | u16 sens[3]; /* 782D/783S only. | |
239 | 1 = pentium diode; 2 = 3904 diode; | |
240 | 4 = thermistor */ | |
241 | u8 vrm; | |
242 | }; | |
243 | ||
244 | static struct w83781d_data *w83781d_data_if_isa(void); | |
245 | static int w83781d_alias_detect(struct i2c_client *client, u8 chipid); | |
246 | ||
247 | static int w83781d_read_value(struct w83781d_data *data, u16 reg); | |
248 | static int w83781d_write_value(struct w83781d_data *data, u16 reg, u16 value); | |
249 | static struct w83781d_data *w83781d_update_device(struct device *dev); | |
250 | static void w83781d_init_device(struct device *dev); | |
251 | ||
252 | /* following are the sysfs callback functions */ | |
253 | #define show_in_reg(reg) \ | |
254 | static ssize_t show_##reg (struct device *dev, struct device_attribute *da, \ | |
255 | char *buf) \ | |
256 | { \ | |
257 | struct sensor_device_attribute *attr = to_sensor_dev_attr(da); \ | |
258 | struct w83781d_data *data = w83781d_update_device(dev); \ | |
259 | return sprintf(buf, "%ld\n", \ | |
260 | (long)IN_FROM_REG(data->reg[attr->index])); \ | |
261 | } | |
262 | show_in_reg(in); | |
263 | show_in_reg(in_min); | |
264 | show_in_reg(in_max); | |
265 | ||
266 | #define store_in_reg(REG, reg) \ | |
267 | static ssize_t store_in_##reg (struct device *dev, struct device_attribute \ | |
268 | *da, const char *buf, size_t count) \ | |
269 | { \ | |
270 | struct sensor_device_attribute *attr = to_sensor_dev_attr(da); \ | |
271 | struct w83781d_data *data = dev_get_drvdata(dev); \ | |
272 | int nr = attr->index; \ | |
273 | u32 val; \ | |
274 | \ | |
275 | val = simple_strtoul(buf, NULL, 10); \ | |
276 | \ | |
277 | mutex_lock(&data->update_lock); \ | |
278 | data->in_##reg[nr] = IN_TO_REG(val); \ | |
279 | w83781d_write_value(data, W83781D_REG_IN_##REG(nr), data->in_##reg[nr]); \ | |
280 | \ | |
281 | mutex_unlock(&data->update_lock); \ | |
282 | return count; \ | |
283 | } | |
284 | store_in_reg(MIN, min); | |
285 | store_in_reg(MAX, max); | |
286 | ||
287 | #define sysfs_in_offsets(offset) \ | |
288 | static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, \ | |
289 | show_in, NULL, offset); \ | |
290 | static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \ | |
291 | show_in_min, store_in_min, offset); \ | |
292 | static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \ | |
293 | show_in_max, store_in_max, offset) | |
294 | ||
295 | sysfs_in_offsets(0); | |
296 | sysfs_in_offsets(1); | |
297 | sysfs_in_offsets(2); | |
298 | sysfs_in_offsets(3); | |
299 | sysfs_in_offsets(4); | |
300 | sysfs_in_offsets(5); | |
301 | sysfs_in_offsets(6); | |
302 | sysfs_in_offsets(7); | |
303 | sysfs_in_offsets(8); | |
304 | ||
305 | #define show_fan_reg(reg) \ | |
306 | static ssize_t show_##reg (struct device *dev, struct device_attribute *da, \ | |
307 | char *buf) \ | |
308 | { \ | |
309 | struct sensor_device_attribute *attr = to_sensor_dev_attr(da); \ | |
310 | struct w83781d_data *data = w83781d_update_device(dev); \ | |
311 | return sprintf(buf,"%ld\n", \ | |
312 | FAN_FROM_REG(data->reg[attr->index], \ | |
313 | DIV_FROM_REG(data->fan_div[attr->index]))); \ | |
314 | } | |
315 | show_fan_reg(fan); | |
316 | show_fan_reg(fan_min); | |
317 | ||
318 | static ssize_t | |
319 | store_fan_min(struct device *dev, struct device_attribute *da, | |
320 | const char *buf, size_t count) | |
321 | { | |
322 | struct sensor_device_attribute *attr = to_sensor_dev_attr(da); | |
323 | struct w83781d_data *data = dev_get_drvdata(dev); | |
324 | int nr = attr->index; | |
325 | u32 val; | |
326 | ||
327 | val = simple_strtoul(buf, NULL, 10); | |
328 | ||
329 | mutex_lock(&data->update_lock); | |
330 | data->fan_min[nr] = | |
331 | FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr])); | |
332 | w83781d_write_value(data, W83781D_REG_FAN_MIN(nr), | |
333 | data->fan_min[nr]); | |
334 | ||
335 | mutex_unlock(&data->update_lock); | |
336 | return count; | |
337 | } | |
338 | ||
339 | static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0); | |
340 | static SENSOR_DEVICE_ATTR(fan1_min, S_IRUGO | S_IWUSR, | |
341 | show_fan_min, store_fan_min, 0); | |
342 | static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1); | |
343 | static SENSOR_DEVICE_ATTR(fan2_min, S_IRUGO | S_IWUSR, | |
344 | show_fan_min, store_fan_min, 1); | |
345 | static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 2); | |
346 | static SENSOR_DEVICE_ATTR(fan3_min, S_IRUGO | S_IWUSR, | |
347 | show_fan_min, store_fan_min, 2); | |
348 | ||
349 | #define show_temp_reg(reg) \ | |
350 | static ssize_t show_##reg (struct device *dev, struct device_attribute *da, \ | |
351 | char *buf) \ | |
352 | { \ | |
353 | struct sensor_device_attribute *attr = to_sensor_dev_attr(da); \ | |
354 | struct w83781d_data *data = w83781d_update_device(dev); \ | |
355 | int nr = attr->index; \ | |
356 | if (nr >= 2) { /* TEMP2 and TEMP3 */ \ | |
357 | return sprintf(buf,"%d\n", \ | |
358 | LM75_TEMP_FROM_REG(data->reg##_add[nr-2])); \ | |
359 | } else { /* TEMP1 */ \ | |
360 | return sprintf(buf,"%ld\n", (long)TEMP_FROM_REG(data->reg)); \ | |
361 | } \ | |
362 | } | |
363 | show_temp_reg(temp); | |
364 | show_temp_reg(temp_max); | |
365 | show_temp_reg(temp_max_hyst); | |
366 | ||
367 | #define store_temp_reg(REG, reg) \ | |
368 | static ssize_t store_temp_##reg (struct device *dev, \ | |
369 | struct device_attribute *da, const char *buf, size_t count) \ | |
370 | { \ | |
371 | struct sensor_device_attribute *attr = to_sensor_dev_attr(da); \ | |
372 | struct w83781d_data *data = dev_get_drvdata(dev); \ | |
373 | int nr = attr->index; \ | |
374 | long val; \ | |
375 | \ | |
376 | val = simple_strtol(buf, NULL, 10); \ | |
377 | \ | |
378 | mutex_lock(&data->update_lock); \ | |
379 | \ | |
380 | if (nr >= 2) { /* TEMP2 and TEMP3 */ \ | |
381 | data->temp_##reg##_add[nr-2] = LM75_TEMP_TO_REG(val); \ | |
382 | w83781d_write_value(data, W83781D_REG_TEMP_##REG(nr), \ | |
383 | data->temp_##reg##_add[nr-2]); \ | |
384 | } else { /* TEMP1 */ \ | |
385 | data->temp_##reg = TEMP_TO_REG(val); \ | |
386 | w83781d_write_value(data, W83781D_REG_TEMP_##REG(nr), \ | |
387 | data->temp_##reg); \ | |
388 | } \ | |
389 | \ | |
390 | mutex_unlock(&data->update_lock); \ | |
391 | return count; \ | |
392 | } | |
393 | store_temp_reg(OVER, max); | |
394 | store_temp_reg(HYST, max_hyst); | |
395 | ||
396 | #define sysfs_temp_offsets(offset) \ | |
397 | static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, \ | |
398 | show_temp, NULL, offset); \ | |
399 | static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \ | |
400 | show_temp_max, store_temp_max, offset); \ | |
401 | static SENSOR_DEVICE_ATTR(temp##offset##_max_hyst, S_IRUGO | S_IWUSR, \ | |
402 | show_temp_max_hyst, store_temp_max_hyst, offset); | |
403 | ||
404 | sysfs_temp_offsets(1); | |
405 | sysfs_temp_offsets(2); | |
406 | sysfs_temp_offsets(3); | |
407 | ||
408 | static ssize_t | |
409 | show_vid_reg(struct device *dev, struct device_attribute *attr, char *buf) | |
410 | { | |
411 | struct w83781d_data *data = w83781d_update_device(dev); | |
412 | return sprintf(buf, "%ld\n", (long) vid_from_reg(data->vid, data->vrm)); | |
413 | } | |
414 | ||
415 | static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL); | |
416 | ||
417 | static ssize_t | |
418 | show_vrm_reg(struct device *dev, struct device_attribute *attr, char *buf) | |
419 | { | |
420 | struct w83781d_data *data = dev_get_drvdata(dev); | |
421 | return sprintf(buf, "%ld\n", (long) data->vrm); | |
422 | } | |
423 | ||
424 | static ssize_t | |
425 | store_vrm_reg(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) | |
426 | { | |
427 | struct w83781d_data *data = dev_get_drvdata(dev); | |
428 | u32 val; | |
429 | ||
430 | val = simple_strtoul(buf, NULL, 10); | |
431 | data->vrm = val; | |
432 | ||
433 | return count; | |
434 | } | |
435 | ||
436 | static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg); | |
437 | ||
438 | static ssize_t | |
439 | show_alarms_reg(struct device *dev, struct device_attribute *attr, char *buf) | |
440 | { | |
441 | struct w83781d_data *data = w83781d_update_device(dev); | |
442 | return sprintf(buf, "%u\n", data->alarms); | |
443 | } | |
444 | ||
445 | static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL); | |
446 | ||
447 | static ssize_t show_alarm(struct device *dev, struct device_attribute *attr, | |
448 | char *buf) | |
449 | { | |
450 | struct w83781d_data *data = w83781d_update_device(dev); | |
451 | int bitnr = to_sensor_dev_attr(attr)->index; | |
452 | return sprintf(buf, "%u\n", (data->alarms >> bitnr) & 1); | |
453 | } | |
454 | ||
455 | /* The W83781D has a single alarm bit for temp2 and temp3 */ | |
456 | static ssize_t show_temp3_alarm(struct device *dev, | |
457 | struct device_attribute *attr, char *buf) | |
458 | { | |
459 | struct w83781d_data *data = w83781d_update_device(dev); | |
460 | int bitnr = (data->type == w83781d) ? 5 : 13; | |
461 | return sprintf(buf, "%u\n", (data->alarms >> bitnr) & 1); | |
462 | } | |
463 | ||
464 | static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0); | |
465 | static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1); | |
466 | static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2); | |
467 | static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3); | |
468 | static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 8); | |
469 | static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 9); | |
470 | static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 10); | |
471 | static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 16); | |
472 | static SENSOR_DEVICE_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 17); | |
473 | static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 6); | |
474 | static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 7); | |
475 | static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 11); | |
476 | static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4); | |
477 | static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 5); | |
478 | static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_temp3_alarm, NULL, 0); | |
479 | ||
480 | static ssize_t show_beep_mask (struct device *dev, struct device_attribute *attr, char *buf) | |
481 | { | |
482 | struct w83781d_data *data = w83781d_update_device(dev); | |
483 | return sprintf(buf, "%ld\n", | |
484 | (long)BEEP_MASK_FROM_REG(data->beep_mask, data->type)); | |
485 | } | |
486 | ||
487 | static ssize_t | |
488 | store_beep_mask(struct device *dev, struct device_attribute *attr, | |
489 | const char *buf, size_t count) | |
490 | { | |
491 | struct w83781d_data *data = dev_get_drvdata(dev); | |
492 | u32 val; | |
493 | ||
494 | val = simple_strtoul(buf, NULL, 10); | |
495 | ||
496 | mutex_lock(&data->update_lock); | |
497 | data->beep_mask &= 0x8000; /* preserve beep enable */ | |
498 | data->beep_mask |= BEEP_MASK_TO_REG(val, data->type); | |
499 | w83781d_write_value(data, W83781D_REG_BEEP_INTS1, | |
500 | data->beep_mask & 0xff); | |
501 | w83781d_write_value(data, W83781D_REG_BEEP_INTS2, | |
502 | (data->beep_mask >> 8) & 0xff); | |
503 | if (data->type != w83781d && data->type != as99127f) { | |
504 | w83781d_write_value(data, W83781D_REG_BEEP_INTS3, | |
505 | ((data->beep_mask) >> 16) & 0xff); | |
506 | } | |
507 | mutex_unlock(&data->update_lock); | |
508 | ||
509 | return count; | |
510 | } | |
511 | ||
512 | static DEVICE_ATTR(beep_mask, S_IRUGO | S_IWUSR, | |
513 | show_beep_mask, store_beep_mask); | |
514 | ||
515 | static ssize_t show_beep(struct device *dev, struct device_attribute *attr, | |
516 | char *buf) | |
517 | { | |
518 | struct w83781d_data *data = w83781d_update_device(dev); | |
519 | int bitnr = to_sensor_dev_attr(attr)->index; | |
520 | return sprintf(buf, "%u\n", (data->beep_mask >> bitnr) & 1); | |
521 | } | |
522 | ||
523 | static ssize_t | |
524 | store_beep(struct device *dev, struct device_attribute *attr, | |
525 | const char *buf, size_t count) | |
526 | { | |
527 | struct w83781d_data *data = dev_get_drvdata(dev); | |
528 | int bitnr = to_sensor_dev_attr(attr)->index; | |
529 | unsigned long bit; | |
530 | u8 reg; | |
531 | ||
532 | bit = simple_strtoul(buf, NULL, 10); | |
533 | if (bit & ~1) | |
534 | return -EINVAL; | |
535 | ||
536 | mutex_lock(&data->update_lock); | |
537 | if (bit) | |
538 | data->beep_mask |= (1 << bitnr); | |
539 | else | |
540 | data->beep_mask &= ~(1 << bitnr); | |
541 | ||
542 | if (bitnr < 8) { | |
543 | reg = w83781d_read_value(data, W83781D_REG_BEEP_INTS1); | |
544 | if (bit) | |
545 | reg |= (1 << bitnr); | |
546 | else | |
547 | reg &= ~(1 << bitnr); | |
548 | w83781d_write_value(data, W83781D_REG_BEEP_INTS1, reg); | |
549 | } else if (bitnr < 16) { | |
550 | reg = w83781d_read_value(data, W83781D_REG_BEEP_INTS2); | |
551 | if (bit) | |
552 | reg |= (1 << (bitnr - 8)); | |
553 | else | |
554 | reg &= ~(1 << (bitnr - 8)); | |
555 | w83781d_write_value(data, W83781D_REG_BEEP_INTS2, reg); | |
556 | } else { | |
557 | reg = w83781d_read_value(data, W83781D_REG_BEEP_INTS3); | |
558 | if (bit) | |
559 | reg |= (1 << (bitnr - 16)); | |
560 | else | |
561 | reg &= ~(1 << (bitnr - 16)); | |
562 | w83781d_write_value(data, W83781D_REG_BEEP_INTS3, reg); | |
563 | } | |
564 | mutex_unlock(&data->update_lock); | |
565 | ||
566 | return count; | |
567 | } | |
568 | ||
569 | /* The W83781D has a single beep bit for temp2 and temp3 */ | |
570 | static ssize_t show_temp3_beep(struct device *dev, | |
571 | struct device_attribute *attr, char *buf) | |
572 | { | |
573 | struct w83781d_data *data = w83781d_update_device(dev); | |
574 | int bitnr = (data->type == w83781d) ? 5 : 13; | |
575 | return sprintf(buf, "%u\n", (data->beep_mask >> bitnr) & 1); | |
576 | } | |
577 | ||
578 | static SENSOR_DEVICE_ATTR(in0_beep, S_IRUGO | S_IWUSR, | |
579 | show_beep, store_beep, 0); | |
580 | static SENSOR_DEVICE_ATTR(in1_beep, S_IRUGO | S_IWUSR, | |
581 | show_beep, store_beep, 1); | |
582 | static SENSOR_DEVICE_ATTR(in2_beep, S_IRUGO | S_IWUSR, | |
583 | show_beep, store_beep, 2); | |
584 | static SENSOR_DEVICE_ATTR(in3_beep, S_IRUGO | S_IWUSR, | |
585 | show_beep, store_beep, 3); | |
586 | static SENSOR_DEVICE_ATTR(in4_beep, S_IRUGO | S_IWUSR, | |
587 | show_beep, store_beep, 8); | |
588 | static SENSOR_DEVICE_ATTR(in5_beep, S_IRUGO | S_IWUSR, | |
589 | show_beep, store_beep, 9); | |
590 | static SENSOR_DEVICE_ATTR(in6_beep, S_IRUGO | S_IWUSR, | |
591 | show_beep, store_beep, 10); | |
592 | static SENSOR_DEVICE_ATTR(in7_beep, S_IRUGO | S_IWUSR, | |
593 | show_beep, store_beep, 16); | |
594 | static SENSOR_DEVICE_ATTR(in8_beep, S_IRUGO | S_IWUSR, | |
595 | show_beep, store_beep, 17); | |
596 | static SENSOR_DEVICE_ATTR(fan1_beep, S_IRUGO | S_IWUSR, | |
597 | show_beep, store_beep, 6); | |
598 | static SENSOR_DEVICE_ATTR(fan2_beep, S_IRUGO | S_IWUSR, | |
599 | show_beep, store_beep, 7); | |
600 | static SENSOR_DEVICE_ATTR(fan3_beep, S_IRUGO | S_IWUSR, | |
601 | show_beep, store_beep, 11); | |
602 | static SENSOR_DEVICE_ATTR(temp1_beep, S_IRUGO | S_IWUSR, | |
603 | show_beep, store_beep, 4); | |
604 | static SENSOR_DEVICE_ATTR(temp2_beep, S_IRUGO | S_IWUSR, | |
605 | show_beep, store_beep, 5); | |
606 | static SENSOR_DEVICE_ATTR(temp3_beep, S_IRUGO, | |
607 | show_temp3_beep, store_beep, 13); | |
608 | static SENSOR_DEVICE_ATTR(beep_enable, S_IRUGO | S_IWUSR, | |
609 | show_beep, store_beep, 15); | |
610 | ||
611 | static ssize_t | |
612 | show_fan_div(struct device *dev, struct device_attribute *da, char *buf) | |
613 | { | |
614 | struct sensor_device_attribute *attr = to_sensor_dev_attr(da); | |
615 | struct w83781d_data *data = w83781d_update_device(dev); | |
616 | return sprintf(buf, "%ld\n", | |
617 | (long) DIV_FROM_REG(data->fan_div[attr->index])); | |
618 | } | |
619 | ||
620 | /* Note: we save and restore the fan minimum here, because its value is | |
621 | determined in part by the fan divisor. This follows the principle of | |
622 | least surprise; the user doesn't expect the fan minimum to change just | |
623 | because the divisor changed. */ | |
624 | static ssize_t | |
625 | store_fan_div(struct device *dev, struct device_attribute *da, | |
626 | const char *buf, size_t count) | |
627 | { | |
628 | struct sensor_device_attribute *attr = to_sensor_dev_attr(da); | |
629 | struct w83781d_data *data = dev_get_drvdata(dev); | |
630 | unsigned long min; | |
631 | int nr = attr->index; | |
632 | u8 reg; | |
633 | unsigned long val = simple_strtoul(buf, NULL, 10); | |
634 | ||
635 | mutex_lock(&data->update_lock); | |
636 | ||
637 | /* Save fan_min */ | |
638 | min = FAN_FROM_REG(data->fan_min[nr], | |
639 | DIV_FROM_REG(data->fan_div[nr])); | |
640 | ||
641 | data->fan_div[nr] = DIV_TO_REG(val, data->type); | |
642 | ||
643 | reg = (w83781d_read_value(data, nr==2 ? W83781D_REG_PIN : W83781D_REG_VID_FANDIV) | |
644 | & (nr==0 ? 0xcf : 0x3f)) | |
645 | | ((data->fan_div[nr] & 0x03) << (nr==0 ? 4 : 6)); | |
646 | w83781d_write_value(data, nr==2 ? W83781D_REG_PIN : W83781D_REG_VID_FANDIV, reg); | |
647 | ||
648 | /* w83781d and as99127f don't have extended divisor bits */ | |
649 | if (data->type != w83781d && data->type != as99127f) { | |
650 | reg = (w83781d_read_value(data, W83781D_REG_VBAT) | |
651 | & ~(1 << (5 + nr))) | |
652 | | ((data->fan_div[nr] & 0x04) << (3 + nr)); | |
653 | w83781d_write_value(data, W83781D_REG_VBAT, reg); | |
654 | } | |
655 | ||
656 | /* Restore fan_min */ | |
657 | data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr])); | |
658 | w83781d_write_value(data, W83781D_REG_FAN_MIN(nr), data->fan_min[nr]); | |
659 | ||
660 | mutex_unlock(&data->update_lock); | |
661 | return count; | |
662 | } | |
663 | ||
664 | static SENSOR_DEVICE_ATTR(fan1_div, S_IRUGO | S_IWUSR, | |
665 | show_fan_div, store_fan_div, 0); | |
666 | static SENSOR_DEVICE_ATTR(fan2_div, S_IRUGO | S_IWUSR, | |
667 | show_fan_div, store_fan_div, 1); | |
668 | static SENSOR_DEVICE_ATTR(fan3_div, S_IRUGO | S_IWUSR, | |
669 | show_fan_div, store_fan_div, 2); | |
670 | ||
671 | static ssize_t | |
672 | show_pwm(struct device *dev, struct device_attribute *da, char *buf) | |
673 | { | |
674 | struct sensor_device_attribute *attr = to_sensor_dev_attr(da); | |
675 | struct w83781d_data *data = w83781d_update_device(dev); | |
676 | return sprintf(buf, "%d\n", (int)data->pwm[attr->index]); | |
677 | } | |
678 | ||
679 | static ssize_t | |
680 | show_pwm2_enable(struct device *dev, struct device_attribute *da, char *buf) | |
681 | { | |
682 | struct w83781d_data *data = w83781d_update_device(dev); | |
683 | return sprintf(buf, "%d\n", (int)data->pwm2_enable); | |
684 | } | |
685 | ||
686 | static ssize_t | |
687 | store_pwm(struct device *dev, struct device_attribute *da, const char *buf, | |
688 | size_t count) | |
689 | { | |
690 | struct sensor_device_attribute *attr = to_sensor_dev_attr(da); | |
691 | struct w83781d_data *data = dev_get_drvdata(dev); | |
692 | int nr = attr->index; | |
693 | u32 val; | |
694 | ||
695 | val = simple_strtoul(buf, NULL, 10); | |
696 | ||
697 | mutex_lock(&data->update_lock); | |
698 | data->pwm[nr] = SENSORS_LIMIT(val, 0, 255); | |
699 | w83781d_write_value(data, W83781D_REG_PWM[nr], data->pwm[nr]); | |
700 | mutex_unlock(&data->update_lock); | |
701 | return count; | |
702 | } | |
703 | ||
704 | static ssize_t | |
705 | store_pwm2_enable(struct device *dev, struct device_attribute *da, | |
706 | const char *buf, size_t count) | |
707 | { | |
708 | struct w83781d_data *data = dev_get_drvdata(dev); | |
709 | u32 val, reg; | |
710 | ||
711 | val = simple_strtoul(buf, NULL, 10); | |
712 | ||
713 | mutex_lock(&data->update_lock); | |
714 | ||
715 | switch (val) { | |
716 | case 0: | |
717 | case 1: | |
718 | reg = w83781d_read_value(data, W83781D_REG_PWMCLK12); | |
719 | w83781d_write_value(data, W83781D_REG_PWMCLK12, | |
720 | (reg & 0xf7) | (val << 3)); | |
721 | ||
722 | reg = w83781d_read_value(data, W83781D_REG_BEEP_CONFIG); | |
723 | w83781d_write_value(data, W83781D_REG_BEEP_CONFIG, | |
724 | (reg & 0xef) | (!val << 4)); | |
725 | ||
726 | data->pwm2_enable = val; | |
727 | break; | |
728 | ||
729 | default: | |
730 | mutex_unlock(&data->update_lock); | |
731 | return -EINVAL; | |
732 | } | |
733 | ||
734 | mutex_unlock(&data->update_lock); | |
735 | return count; | |
736 | } | |
737 | ||
738 | static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, show_pwm, store_pwm, 0); | |
739 | static SENSOR_DEVICE_ATTR(pwm2, S_IRUGO | S_IWUSR, show_pwm, store_pwm, 1); | |
740 | static SENSOR_DEVICE_ATTR(pwm3, S_IRUGO | S_IWUSR, show_pwm, store_pwm, 2); | |
741 | static SENSOR_DEVICE_ATTR(pwm4, S_IRUGO | S_IWUSR, show_pwm, store_pwm, 3); | |
742 | /* only PWM2 can be enabled/disabled */ | |
743 | static DEVICE_ATTR(pwm2_enable, S_IRUGO | S_IWUSR, | |
744 | show_pwm2_enable, store_pwm2_enable); | |
745 | ||
746 | static ssize_t | |
747 | show_sensor(struct device *dev, struct device_attribute *da, char *buf) | |
748 | { | |
749 | struct sensor_device_attribute *attr = to_sensor_dev_attr(da); | |
750 | struct w83781d_data *data = w83781d_update_device(dev); | |
751 | return sprintf(buf, "%d\n", (int)data->sens[attr->index]); | |
752 | } | |
753 | ||
754 | static ssize_t | |
755 | store_sensor(struct device *dev, struct device_attribute *da, | |
756 | const char *buf, size_t count) | |
757 | { | |
758 | struct sensor_device_attribute *attr = to_sensor_dev_attr(da); | |
759 | struct w83781d_data *data = dev_get_drvdata(dev); | |
760 | int nr = attr->index; | |
761 | u32 val, tmp; | |
762 | ||
763 | val = simple_strtoul(buf, NULL, 10); | |
764 | ||
765 | mutex_lock(&data->update_lock); | |
766 | ||
767 | switch (val) { | |
768 | case 1: /* PII/Celeron diode */ | |
769 | tmp = w83781d_read_value(data, W83781D_REG_SCFG1); | |
770 | w83781d_write_value(data, W83781D_REG_SCFG1, | |
771 | tmp | BIT_SCFG1[nr]); | |
772 | tmp = w83781d_read_value(data, W83781D_REG_SCFG2); | |
773 | w83781d_write_value(data, W83781D_REG_SCFG2, | |
774 | tmp | BIT_SCFG2[nr]); | |
775 | data->sens[nr] = val; | |
776 | break; | |
777 | case 2: /* 3904 */ | |
778 | tmp = w83781d_read_value(data, W83781D_REG_SCFG1); | |
779 | w83781d_write_value(data, W83781D_REG_SCFG1, | |
780 | tmp | BIT_SCFG1[nr]); | |
781 | tmp = w83781d_read_value(data, W83781D_REG_SCFG2); | |
782 | w83781d_write_value(data, W83781D_REG_SCFG2, | |
783 | tmp & ~BIT_SCFG2[nr]); | |
784 | data->sens[nr] = val; | |
785 | break; | |
786 | case W83781D_DEFAULT_BETA: | |
787 | dev_warn(dev, "Sensor type %d is deprecated, please use 4 " | |
788 | "instead\n", W83781D_DEFAULT_BETA); | |
789 | /* fall through */ | |
790 | case 4: /* thermistor */ | |
791 | tmp = w83781d_read_value(data, W83781D_REG_SCFG1); | |
792 | w83781d_write_value(data, W83781D_REG_SCFG1, | |
793 | tmp & ~BIT_SCFG1[nr]); | |
794 | data->sens[nr] = val; | |
795 | break; | |
796 | default: | |
797 | dev_err(dev, "Invalid sensor type %ld; must be 1, 2, or 4\n", | |
798 | (long) val); | |
799 | break; | |
800 | } | |
801 | ||
802 | mutex_unlock(&data->update_lock); | |
803 | return count; | |
804 | } | |
805 | ||
806 | static SENSOR_DEVICE_ATTR(temp1_type, S_IRUGO | S_IWUSR, | |
807 | show_sensor, store_sensor, 0); | |
808 | static SENSOR_DEVICE_ATTR(temp2_type, S_IRUGO | S_IWUSR, | |
809 | show_sensor, store_sensor, 1); | |
810 | static SENSOR_DEVICE_ATTR(temp3_type, S_IRUGO | S_IWUSR, | |
811 | show_sensor, store_sensor, 2); | |
812 | ||
813 | /* Assumes that adapter is of I2C, not ISA variety. | |
814 | * OTHERWISE DON'T CALL THIS | |
815 | */ | |
816 | static int | |
817 | w83781d_detect_subclients(struct i2c_client *new_client) | |
818 | { | |
819 | int i, val1 = 0, id; | |
820 | int err; | |
821 | int address = new_client->addr; | |
822 | unsigned short sc_addr[2]; | |
823 | struct i2c_adapter *adapter = new_client->adapter; | |
824 | struct w83781d_data *data = i2c_get_clientdata(new_client); | |
825 | enum chips kind = data->type; | |
826 | ||
827 | id = i2c_adapter_id(adapter); | |
828 | ||
829 | if (force_subclients[0] == id && force_subclients[1] == address) { | |
830 | for (i = 2; i <= 3; i++) { | |
831 | if (force_subclients[i] < 0x48 || | |
832 | force_subclients[i] > 0x4f) { | |
833 | dev_err(&new_client->dev, "Invalid subclient " | |
834 | "address %d; must be 0x48-0x4f\n", | |
835 | force_subclients[i]); | |
836 | err = -EINVAL; | |
837 | goto ERROR_SC_1; | |
838 | } | |
839 | } | |
840 | w83781d_write_value(data, W83781D_REG_I2C_SUBADDR, | |
841 | (force_subclients[2] & 0x07) | | |
842 | ((force_subclients[3] & 0x07) << 4)); | |
843 | sc_addr[0] = force_subclients[2]; | |
844 | } else { | |
845 | val1 = w83781d_read_value(data, W83781D_REG_I2C_SUBADDR); | |
846 | sc_addr[0] = 0x48 + (val1 & 0x07); | |
847 | } | |
848 | ||
849 | if (kind != w83783s) { | |
850 | if (force_subclients[0] == id && | |
851 | force_subclients[1] == address) { | |
852 | sc_addr[1] = force_subclients[3]; | |
853 | } else { | |
854 | sc_addr[1] = 0x48 + ((val1 >> 4) & 0x07); | |
855 | } | |
856 | if (sc_addr[0] == sc_addr[1]) { | |
857 | dev_err(&new_client->dev, | |
858 | "Duplicate addresses 0x%x for subclients.\n", | |
859 | sc_addr[0]); | |
860 | err = -EBUSY; | |
861 | goto ERROR_SC_2; | |
862 | } | |
863 | } | |
864 | ||
865 | for (i = 0; i <= 1; i++) { | |
866 | data->lm75[i] = i2c_new_dummy(adapter, sc_addr[i]); | |
867 | if (!data->lm75[i]) { | |
868 | dev_err(&new_client->dev, "Subclient %d " | |
869 | "registration at address 0x%x " | |
870 | "failed.\n", i, sc_addr[i]); | |
871 | err = -ENOMEM; | |
872 | if (i == 1) | |
873 | goto ERROR_SC_3; | |
874 | goto ERROR_SC_2; | |
875 | } | |
876 | if (kind == w83783s) | |
877 | break; | |
878 | } | |
879 | ||
880 | return 0; | |
881 | ||
882 | /* Undo inits in case of errors */ | |
883 | ERROR_SC_3: | |
884 | i2c_unregister_device(data->lm75[0]); | |
885 | ERROR_SC_2: | |
886 | ERROR_SC_1: | |
887 | return err; | |
888 | } | |
889 | ||
890 | #define IN_UNIT_ATTRS(X) \ | |
891 | &sensor_dev_attr_in##X##_input.dev_attr.attr, \ | |
892 | &sensor_dev_attr_in##X##_min.dev_attr.attr, \ | |
893 | &sensor_dev_attr_in##X##_max.dev_attr.attr, \ | |
894 | &sensor_dev_attr_in##X##_alarm.dev_attr.attr, \ | |
895 | &sensor_dev_attr_in##X##_beep.dev_attr.attr | |
896 | ||
897 | #define FAN_UNIT_ATTRS(X) \ | |
898 | &sensor_dev_attr_fan##X##_input.dev_attr.attr, \ | |
899 | &sensor_dev_attr_fan##X##_min.dev_attr.attr, \ | |
900 | &sensor_dev_attr_fan##X##_div.dev_attr.attr, \ | |
901 | &sensor_dev_attr_fan##X##_alarm.dev_attr.attr, \ | |
902 | &sensor_dev_attr_fan##X##_beep.dev_attr.attr | |
903 | ||
904 | #define TEMP_UNIT_ATTRS(X) \ | |
905 | &sensor_dev_attr_temp##X##_input.dev_attr.attr, \ | |
906 | &sensor_dev_attr_temp##X##_max.dev_attr.attr, \ | |
907 | &sensor_dev_attr_temp##X##_max_hyst.dev_attr.attr, \ | |
908 | &sensor_dev_attr_temp##X##_alarm.dev_attr.attr, \ | |
909 | &sensor_dev_attr_temp##X##_beep.dev_attr.attr | |
910 | ||
911 | static struct attribute* w83781d_attributes[] = { | |
912 | IN_UNIT_ATTRS(0), | |
913 | IN_UNIT_ATTRS(2), | |
914 | IN_UNIT_ATTRS(3), | |
915 | IN_UNIT_ATTRS(4), | |
916 | IN_UNIT_ATTRS(5), | |
917 | IN_UNIT_ATTRS(6), | |
918 | FAN_UNIT_ATTRS(1), | |
919 | FAN_UNIT_ATTRS(2), | |
920 | FAN_UNIT_ATTRS(3), | |
921 | TEMP_UNIT_ATTRS(1), | |
922 | TEMP_UNIT_ATTRS(2), | |
923 | &dev_attr_cpu0_vid.attr, | |
924 | &dev_attr_vrm.attr, | |
925 | &dev_attr_alarms.attr, | |
926 | &dev_attr_beep_mask.attr, | |
927 | &sensor_dev_attr_beep_enable.dev_attr.attr, | |
928 | NULL | |
929 | }; | |
930 | static const struct attribute_group w83781d_group = { | |
931 | .attrs = w83781d_attributes, | |
932 | }; | |
933 | ||
934 | static struct attribute *w83781d_attributes_opt[] = { | |
935 | IN_UNIT_ATTRS(1), | |
936 | IN_UNIT_ATTRS(7), | |
937 | IN_UNIT_ATTRS(8), | |
938 | TEMP_UNIT_ATTRS(3), | |
939 | &sensor_dev_attr_pwm1.dev_attr.attr, | |
940 | &sensor_dev_attr_pwm2.dev_attr.attr, | |
941 | &sensor_dev_attr_pwm3.dev_attr.attr, | |
942 | &sensor_dev_attr_pwm4.dev_attr.attr, | |
943 | &dev_attr_pwm2_enable.attr, | |
944 | &sensor_dev_attr_temp1_type.dev_attr.attr, | |
945 | &sensor_dev_attr_temp2_type.dev_attr.attr, | |
946 | &sensor_dev_attr_temp3_type.dev_attr.attr, | |
947 | NULL | |
948 | }; | |
949 | static const struct attribute_group w83781d_group_opt = { | |
950 | .attrs = w83781d_attributes_opt, | |
951 | }; | |
952 | ||
953 | /* No clean up is done on error, it's up to the caller */ | |
954 | static int | |
955 | w83781d_create_files(struct device *dev, int kind, int is_isa) | |
956 | { | |
957 | int err; | |
958 | ||
959 | if ((err = sysfs_create_group(&dev->kobj, &w83781d_group))) | |
960 | return err; | |
961 | ||
962 | if (kind != w83783s) { | |
963 | if ((err = device_create_file(dev, | |
964 | &sensor_dev_attr_in1_input.dev_attr)) | |
965 | || (err = device_create_file(dev, | |
966 | &sensor_dev_attr_in1_min.dev_attr)) | |
967 | || (err = device_create_file(dev, | |
968 | &sensor_dev_attr_in1_max.dev_attr)) | |
969 | || (err = device_create_file(dev, | |
970 | &sensor_dev_attr_in1_alarm.dev_attr)) | |
971 | || (err = device_create_file(dev, | |
972 | &sensor_dev_attr_in1_beep.dev_attr))) | |
973 | return err; | |
974 | } | |
975 | if (kind != as99127f && kind != w83781d && kind != w83783s) { | |
976 | if ((err = device_create_file(dev, | |
977 | &sensor_dev_attr_in7_input.dev_attr)) | |
978 | || (err = device_create_file(dev, | |
979 | &sensor_dev_attr_in7_min.dev_attr)) | |
980 | || (err = device_create_file(dev, | |
981 | &sensor_dev_attr_in7_max.dev_attr)) | |
982 | || (err = device_create_file(dev, | |
983 | &sensor_dev_attr_in7_alarm.dev_attr)) | |
984 | || (err = device_create_file(dev, | |
985 | &sensor_dev_attr_in7_beep.dev_attr)) | |
986 | || (err = device_create_file(dev, | |
987 | &sensor_dev_attr_in8_input.dev_attr)) | |
988 | || (err = device_create_file(dev, | |
989 | &sensor_dev_attr_in8_min.dev_attr)) | |
990 | || (err = device_create_file(dev, | |
991 | &sensor_dev_attr_in8_max.dev_attr)) | |
992 | || (err = device_create_file(dev, | |
993 | &sensor_dev_attr_in8_alarm.dev_attr)) | |
994 | || (err = device_create_file(dev, | |
995 | &sensor_dev_attr_in8_beep.dev_attr))) | |
996 | return err; | |
997 | } | |
998 | if (kind != w83783s) { | |
999 | if ((err = device_create_file(dev, | |
1000 | &sensor_dev_attr_temp3_input.dev_attr)) | |
1001 | || (err = device_create_file(dev, | |
1002 | &sensor_dev_attr_temp3_max.dev_attr)) | |
1003 | || (err = device_create_file(dev, | |
1004 | &sensor_dev_attr_temp3_max_hyst.dev_attr)) | |
1005 | || (err = device_create_file(dev, | |
1006 | &sensor_dev_attr_temp3_alarm.dev_attr)) | |
1007 | || (err = device_create_file(dev, | |
1008 | &sensor_dev_attr_temp3_beep.dev_attr))) | |
1009 | return err; | |
1010 | ||
1011 | if (kind != w83781d) { | |
1012 | err = sysfs_chmod_file(&dev->kobj, | |
1013 | &sensor_dev_attr_temp3_alarm.dev_attr.attr, | |
1014 | S_IRUGO | S_IWUSR); | |
1015 | if (err) | |
1016 | return err; | |
1017 | } | |
1018 | } | |
1019 | ||
1020 | if (kind != w83781d && kind != as99127f) { | |
1021 | if ((err = device_create_file(dev, | |
1022 | &sensor_dev_attr_pwm1.dev_attr)) | |
1023 | || (err = device_create_file(dev, | |
1024 | &sensor_dev_attr_pwm2.dev_attr)) | |
1025 | || (err = device_create_file(dev, &dev_attr_pwm2_enable))) | |
1026 | return err; | |
1027 | } | |
1028 | if (kind == w83782d && !is_isa) { | |
1029 | if ((err = device_create_file(dev, | |
1030 | &sensor_dev_attr_pwm3.dev_attr)) | |
1031 | || (err = device_create_file(dev, | |
1032 | &sensor_dev_attr_pwm4.dev_attr))) | |
1033 | return err; | |
1034 | } | |
1035 | ||
1036 | if (kind != as99127f && kind != w83781d) { | |
1037 | if ((err = device_create_file(dev, | |
1038 | &sensor_dev_attr_temp1_type.dev_attr)) | |
1039 | || (err = device_create_file(dev, | |
1040 | &sensor_dev_attr_temp2_type.dev_attr))) | |
1041 | return err; | |
1042 | if (kind != w83783s) { | |
1043 | if ((err = device_create_file(dev, | |
1044 | &sensor_dev_attr_temp3_type.dev_attr))) | |
1045 | return err; | |
1046 | } | |
1047 | } | |
1048 | ||
1049 | return 0; | |
1050 | } | |
1051 | ||
1052 | /* Return 0 if detection is successful, -ENODEV otherwise */ | |
1053 | static int | |
1054 | w83781d_detect(struct i2c_client *client, int kind, | |
1055 | struct i2c_board_info *info) | |
1056 | { | |
1057 | int val1 = 0, val2; | |
1058 | struct w83781d_data *isa = w83781d_data_if_isa(); | |
1059 | struct i2c_adapter *adapter = client->adapter; | |
1060 | int address = client->addr; | |
1061 | const char *client_name = ""; | |
1062 | enum vendor { winbond, asus } vendid; | |
1063 | ||
1064 | if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) | |
1065 | return -ENODEV; | |
1066 | ||
1067 | /* We block updates of the ISA device to minimize the risk of | |
1068 | concurrent access to the same W83781D chip through different | |
1069 | interfaces. */ | |
1070 | if (isa) | |
1071 | mutex_lock(&isa->update_lock); | |
1072 | ||
1073 | /* The w8378?d may be stuck in some other bank than bank 0. This may | |
1074 | make reading other information impossible. Specify a force=... or | |
1075 | force_*=... parameter, and the Winbond will be reset to the right | |
1076 | bank. */ | |
1077 | if (kind < 0) { | |
1078 | if (i2c_smbus_read_byte_data | |
1079 | (client, W83781D_REG_CONFIG) & 0x80) { | |
1080 | dev_dbg(&adapter->dev, "Detection of w83781d chip " | |
1081 | "failed at step 3\n"); | |
1082 | goto err_nodev; | |
1083 | } | |
1084 | val1 = i2c_smbus_read_byte_data(client, W83781D_REG_BANK); | |
1085 | val2 = i2c_smbus_read_byte_data(client, W83781D_REG_CHIPMAN); | |
1086 | /* Check for Winbond or Asus ID if in bank 0 */ | |
1087 | if ((!(val1 & 0x07)) && | |
1088 | (((!(val1 & 0x80)) && (val2 != 0xa3) && (val2 != 0xc3)) | |
1089 | || ((val1 & 0x80) && (val2 != 0x5c) && (val2 != 0x12)))) { | |
1090 | dev_dbg(&adapter->dev, "Detection of w83781d chip " | |
1091 | "failed at step 4\n"); | |
1092 | goto err_nodev; | |
1093 | } | |
1094 | /* If Winbond SMBus, check address at 0x48. | |
1095 | Asus doesn't support, except for as99127f rev.2 */ | |
1096 | if ((!(val1 & 0x80) && (val2 == 0xa3)) || | |
1097 | ((val1 & 0x80) && (val2 == 0x5c))) { | |
1098 | if (i2c_smbus_read_byte_data | |
1099 | (client, W83781D_REG_I2C_ADDR) != address) { | |
1100 | dev_dbg(&adapter->dev, "Detection of w83781d " | |
1101 | "chip failed at step 5\n"); | |
1102 | goto err_nodev; | |
1103 | } | |
1104 | } | |
1105 | } | |
1106 | ||
1107 | /* We have either had a force parameter, or we have already detected the | |
1108 | Winbond. Put it now into bank 0 and Vendor ID High Byte */ | |
1109 | i2c_smbus_write_byte_data(client, W83781D_REG_BANK, | |
1110 | (i2c_smbus_read_byte_data(client, W83781D_REG_BANK) | |
1111 | & 0x78) | 0x80); | |
1112 | ||
1113 | /* Determine the chip type. */ | |
1114 | if (kind <= 0) { | |
1115 | /* get vendor ID */ | |
1116 | val2 = i2c_smbus_read_byte_data(client, W83781D_REG_CHIPMAN); | |
1117 | if (val2 == 0x5c) | |
1118 | vendid = winbond; | |
1119 | else if (val2 == 0x12) | |
1120 | vendid = asus; | |
1121 | else { | |
1122 | dev_dbg(&adapter->dev, "w83781d chip vendor is " | |
1123 | "neither Winbond nor Asus\n"); | |
1124 | goto err_nodev; | |
1125 | } | |
1126 | ||
1127 | val1 = i2c_smbus_read_byte_data(client, W83781D_REG_WCHIPID); | |
1128 | if ((val1 == 0x10 || val1 == 0x11) && vendid == winbond) | |
1129 | kind = w83781d; | |
1130 | else if (val1 == 0x30 && vendid == winbond) | |
1131 | kind = w83782d; | |
1132 | else if (val1 == 0x40 && vendid == winbond && address == 0x2d) | |
1133 | kind = w83783s; | |
1134 | else if (val1 == 0x31) | |
1135 | kind = as99127f; | |
1136 | else { | |
1137 | if (kind == 0) | |
1138 | dev_warn(&adapter->dev, "Ignoring 'force' " | |
1139 | "parameter for unknown chip at " | |
1140 | "address 0x%02x\n", address); | |
1141 | goto err_nodev; | |
1142 | } | |
1143 | ||
1144 | if ((kind == w83781d || kind == w83782d) | |
1145 | && w83781d_alias_detect(client, val1)) { | |
1146 | dev_dbg(&adapter->dev, "Device at 0x%02x appears to " | |
1147 | "be the same as ISA device\n", address); | |
1148 | goto err_nodev; | |
1149 | } | |
1150 | } | |
1151 | ||
1152 | if (isa) | |
1153 | mutex_unlock(&isa->update_lock); | |
1154 | ||
1155 | if (kind == w83781d) { | |
1156 | client_name = "w83781d"; | |
1157 | } else if (kind == w83782d) { | |
1158 | client_name = "w83782d"; | |
1159 | } else if (kind == w83783s) { | |
1160 | client_name = "w83783s"; | |
1161 | } else if (kind == as99127f) { | |
1162 | client_name = "as99127f"; | |
1163 | } | |
1164 | ||
1165 | strlcpy(info->type, client_name, I2C_NAME_SIZE); | |
1166 | ||
1167 | return 0; | |
1168 | ||
1169 | err_nodev: | |
1170 | if (isa) | |
1171 | mutex_unlock(&isa->update_lock); | |
1172 | return -ENODEV; | |
1173 | } | |
1174 | ||
1175 | static int | |
1176 | w83781d_probe(struct i2c_client *client, const struct i2c_device_id *id) | |
1177 | { | |
1178 | struct device *dev = &client->dev; | |
1179 | struct w83781d_data *data; | |
1180 | int err; | |
1181 | ||
1182 | data = kzalloc(sizeof(struct w83781d_data), GFP_KERNEL); | |
1183 | if (!data) { | |
1184 | err = -ENOMEM; | |
1185 | goto ERROR1; | |
1186 | } | |
1187 | ||
1188 | i2c_set_clientdata(client, data); | |
1189 | mutex_init(&data->lock); | |
1190 | mutex_init(&data->update_lock); | |
1191 | ||
1192 | data->type = id->driver_data; | |
1193 | data->client = client; | |
1194 | ||
1195 | /* attach secondary i2c lm75-like clients */ | |
1196 | err = w83781d_detect_subclients(client); | |
1197 | if (err) | |
1198 | goto ERROR3; | |
1199 | ||
1200 | /* Initialize the chip */ | |
1201 | w83781d_init_device(dev); | |
1202 | ||
1203 | /* Register sysfs hooks */ | |
1204 | err = w83781d_create_files(dev, data->type, 0); | |
1205 | if (err) | |
1206 | goto ERROR4; | |
1207 | ||
1208 | data->hwmon_dev = hwmon_device_register(dev); | |
1209 | if (IS_ERR(data->hwmon_dev)) { | |
1210 | err = PTR_ERR(data->hwmon_dev); | |
1211 | goto ERROR4; | |
1212 | } | |
1213 | ||
1214 | return 0; | |
1215 | ||
1216 | ERROR4: | |
1217 | sysfs_remove_group(&dev->kobj, &w83781d_group); | |
1218 | sysfs_remove_group(&dev->kobj, &w83781d_group_opt); | |
1219 | ||
1220 | if (data->lm75[0]) | |
1221 | i2c_unregister_device(data->lm75[0]); | |
1222 | if (data->lm75[1]) | |
1223 | i2c_unregister_device(data->lm75[1]); | |
1224 | ERROR3: | |
1225 | i2c_set_clientdata(client, NULL); | |
1226 | kfree(data); | |
1227 | ERROR1: | |
1228 | return err; | |
1229 | } | |
1230 | ||
1231 | static int | |
1232 | w83781d_remove(struct i2c_client *client) | |
1233 | { | |
1234 | struct w83781d_data *data = i2c_get_clientdata(client); | |
1235 | struct device *dev = &client->dev; | |
1236 | ||
1237 | hwmon_device_unregister(data->hwmon_dev); | |
1238 | ||
1239 | sysfs_remove_group(&dev->kobj, &w83781d_group); | |
1240 | sysfs_remove_group(&dev->kobj, &w83781d_group_opt); | |
1241 | ||
1242 | if (data->lm75[0]) | |
1243 | i2c_unregister_device(data->lm75[0]); | |
1244 | if (data->lm75[1]) | |
1245 | i2c_unregister_device(data->lm75[1]); | |
1246 | ||
1247 | i2c_set_clientdata(client, NULL); | |
1248 | kfree(data); | |
1249 | ||
1250 | return 0; | |
1251 | } | |
1252 | ||
1253 | static int | |
1254 | w83781d_read_value_i2c(struct w83781d_data *data, u16 reg) | |
1255 | { | |
1256 | struct i2c_client *client = data->client; | |
1257 | int res, bank; | |
1258 | struct i2c_client *cl; | |
1259 | ||
1260 | bank = (reg >> 8) & 0x0f; | |
1261 | if (bank > 2) | |
1262 | /* switch banks */ | |
1263 | i2c_smbus_write_byte_data(client, W83781D_REG_BANK, | |
1264 | bank); | |
1265 | if (bank == 0 || bank > 2) { | |
1266 | res = i2c_smbus_read_byte_data(client, reg & 0xff); | |
1267 | } else { | |
1268 | /* switch to subclient */ | |
1269 | cl = data->lm75[bank - 1]; | |
1270 | /* convert from ISA to LM75 I2C addresses */ | |
1271 | switch (reg & 0xff) { | |
1272 | case 0x50: /* TEMP */ | |
1273 | res = swab16(i2c_smbus_read_word_data(cl, 0)); | |
1274 | break; | |
1275 | case 0x52: /* CONFIG */ | |
1276 | res = i2c_smbus_read_byte_data(cl, 1); | |
1277 | break; | |
1278 | case 0x53: /* HYST */ | |
1279 | res = swab16(i2c_smbus_read_word_data(cl, 2)); | |
1280 | break; | |
1281 | case 0x55: /* OVER */ | |
1282 | default: | |
1283 | res = swab16(i2c_smbus_read_word_data(cl, 3)); | |
1284 | break; | |
1285 | } | |
1286 | } | |
1287 | if (bank > 2) | |
1288 | i2c_smbus_write_byte_data(client, W83781D_REG_BANK, 0); | |
1289 | ||
1290 | return res; | |
1291 | } | |
1292 | ||
1293 | static int | |
1294 | w83781d_write_value_i2c(struct w83781d_data *data, u16 reg, u16 value) | |
1295 | { | |
1296 | struct i2c_client *client = data->client; | |
1297 | int bank; | |
1298 | struct i2c_client *cl; | |
1299 | ||
1300 | bank = (reg >> 8) & 0x0f; | |
1301 | if (bank > 2) | |
1302 | /* switch banks */ | |
1303 | i2c_smbus_write_byte_data(client, W83781D_REG_BANK, | |
1304 | bank); | |
1305 | if (bank == 0 || bank > 2) { | |
1306 | i2c_smbus_write_byte_data(client, reg & 0xff, | |
1307 | value & 0xff); | |
1308 | } else { | |
1309 | /* switch to subclient */ | |
1310 | cl = data->lm75[bank - 1]; | |
1311 | /* convert from ISA to LM75 I2C addresses */ | |
1312 | switch (reg & 0xff) { | |
1313 | case 0x52: /* CONFIG */ | |
1314 | i2c_smbus_write_byte_data(cl, 1, value & 0xff); | |
1315 | break; | |
1316 | case 0x53: /* HYST */ | |
1317 | i2c_smbus_write_word_data(cl, 2, swab16(value)); | |
1318 | break; | |
1319 | case 0x55: /* OVER */ | |
1320 | i2c_smbus_write_word_data(cl, 3, swab16(value)); | |
1321 | break; | |
1322 | } | |
1323 | } | |
1324 | if (bank > 2) | |
1325 | i2c_smbus_write_byte_data(client, W83781D_REG_BANK, 0); | |
1326 | ||
1327 | return 0; | |
1328 | } | |
1329 | ||
1330 | static void | |
1331 | w83781d_init_device(struct device *dev) | |
1332 | { | |
1333 | struct w83781d_data *data = dev_get_drvdata(dev); | |
1334 | int i, p; | |
1335 | int type = data->type; | |
1336 | u8 tmp; | |
1337 | ||
1338 | if (reset && type != as99127f) { /* this resets registers we don't have | |
1339 | documentation for on the as99127f */ | |
1340 | /* Resetting the chip has been the default for a long time, | |
1341 | but it causes the BIOS initializations (fan clock dividers, | |
1342 | thermal sensor types...) to be lost, so it is now optional. | |
1343 | It might even go away if nobody reports it as being useful, | |
1344 | as I see very little reason why this would be needed at | |
1345 | all. */ | |
1346 | dev_info(dev, "If reset=1 solved a problem you were " | |
1347 | "having, please report!\n"); | |
1348 | ||
1349 | /* save these registers */ | |
1350 | i = w83781d_read_value(data, W83781D_REG_BEEP_CONFIG); | |
1351 | p = w83781d_read_value(data, W83781D_REG_PWMCLK12); | |
1352 | /* Reset all except Watchdog values and last conversion values | |
1353 | This sets fan-divs to 2, among others */ | |
1354 | w83781d_write_value(data, W83781D_REG_CONFIG, 0x80); | |
1355 | /* Restore the registers and disable power-on abnormal beep. | |
1356 | This saves FAN 1/2/3 input/output values set by BIOS. */ | |
1357 | w83781d_write_value(data, W83781D_REG_BEEP_CONFIG, i | 0x80); | |
1358 | w83781d_write_value(data, W83781D_REG_PWMCLK12, p); | |
1359 | /* Disable master beep-enable (reset turns it on). | |
1360 | Individual beep_mask should be reset to off but for some reason | |
1361 | disabling this bit helps some people not get beeped */ | |
1362 | w83781d_write_value(data, W83781D_REG_BEEP_INTS2, 0); | |
1363 | } | |
1364 | ||
1365 | /* Disable power-on abnormal beep, as advised by the datasheet. | |
1366 | Already done if reset=1. */ | |
1367 | if (init && !reset && type != as99127f) { | |
1368 | i = w83781d_read_value(data, W83781D_REG_BEEP_CONFIG); | |
1369 | w83781d_write_value(data, W83781D_REG_BEEP_CONFIG, i | 0x80); | |
1370 | } | |
1371 | ||
1372 | data->vrm = vid_which_vrm(); | |
1373 | ||
1374 | if ((type != w83781d) && (type != as99127f)) { | |
1375 | tmp = w83781d_read_value(data, W83781D_REG_SCFG1); | |
1376 | for (i = 1; i <= 3; i++) { | |
1377 | if (!(tmp & BIT_SCFG1[i - 1])) { | |
1378 | data->sens[i - 1] = 4; | |
1379 | } else { | |
1380 | if (w83781d_read_value | |
1381 | (data, | |
1382 | W83781D_REG_SCFG2) & BIT_SCFG2[i - 1]) | |
1383 | data->sens[i - 1] = 1; | |
1384 | else | |
1385 | data->sens[i - 1] = 2; | |
1386 | } | |
1387 | if (type == w83783s && i == 2) | |
1388 | break; | |
1389 | } | |
1390 | } | |
1391 | ||
1392 | if (init && type != as99127f) { | |
1393 | /* Enable temp2 */ | |
1394 | tmp = w83781d_read_value(data, W83781D_REG_TEMP2_CONFIG); | |
1395 | if (tmp & 0x01) { | |
1396 | dev_warn(dev, "Enabling temp2, readings " | |
1397 | "might not make sense\n"); | |
1398 | w83781d_write_value(data, W83781D_REG_TEMP2_CONFIG, | |
1399 | tmp & 0xfe); | |
1400 | } | |
1401 | ||
1402 | /* Enable temp3 */ | |
1403 | if (type != w83783s) { | |
1404 | tmp = w83781d_read_value(data, | |
1405 | W83781D_REG_TEMP3_CONFIG); | |
1406 | if (tmp & 0x01) { | |
1407 | dev_warn(dev, "Enabling temp3, " | |
1408 | "readings might not make sense\n"); | |
1409 | w83781d_write_value(data, | |
1410 | W83781D_REG_TEMP3_CONFIG, tmp & 0xfe); | |
1411 | } | |
1412 | } | |
1413 | } | |
1414 | ||
1415 | /* Start monitoring */ | |
1416 | w83781d_write_value(data, W83781D_REG_CONFIG, | |
1417 | (w83781d_read_value(data, | |
1418 | W83781D_REG_CONFIG) & 0xf7) | |
1419 | | 0x01); | |
1420 | ||
1421 | /* A few vars need to be filled upon startup */ | |
1422 | for (i = 0; i < 3; i++) { | |
1423 | data->fan_min[i] = w83781d_read_value(data, | |
1424 | W83781D_REG_FAN_MIN(i)); | |
1425 | } | |
1426 | ||
1427 | mutex_init(&data->update_lock); | |
1428 | } | |
1429 | ||
1430 | static struct w83781d_data *w83781d_update_device(struct device *dev) | |
1431 | { | |
1432 | struct w83781d_data *data = dev_get_drvdata(dev); | |
1433 | struct i2c_client *client = data->client; | |
1434 | int i; | |
1435 | ||
1436 | mutex_lock(&data->update_lock); | |
1437 | ||
1438 | if (time_after(jiffies, data->last_updated + HZ + HZ / 2) | |
1439 | || !data->valid) { | |
1440 | dev_dbg(dev, "Starting device update\n"); | |
1441 | ||
1442 | for (i = 0; i <= 8; i++) { | |
1443 | if (data->type == w83783s && i == 1) | |
1444 | continue; /* 783S has no in1 */ | |
1445 | data->in[i] = | |
1446 | w83781d_read_value(data, W83781D_REG_IN(i)); | |
1447 | data->in_min[i] = | |
1448 | w83781d_read_value(data, W83781D_REG_IN_MIN(i)); | |
1449 | data->in_max[i] = | |
1450 | w83781d_read_value(data, W83781D_REG_IN_MAX(i)); | |
1451 | if ((data->type != w83782d) && (i == 6)) | |
1452 | break; | |
1453 | } | |
1454 | for (i = 0; i < 3; i++) { | |
1455 | data->fan[i] = | |
1456 | w83781d_read_value(data, W83781D_REG_FAN(i)); | |
1457 | data->fan_min[i] = | |
1458 | w83781d_read_value(data, W83781D_REG_FAN_MIN(i)); | |
1459 | } | |
1460 | if (data->type != w83781d && data->type != as99127f) { | |
1461 | for (i = 0; i < 4; i++) { | |
1462 | data->pwm[i] = | |
1463 | w83781d_read_value(data, | |
1464 | W83781D_REG_PWM[i]); | |
1465 | /* Only W83782D on SMBus has PWM3 and PWM4 */ | |
1466 | if ((data->type != w83782d || !client) | |
1467 | && i == 1) | |
1468 | break; | |
1469 | } | |
1470 | /* Only PWM2 can be disabled */ | |
1471 | data->pwm2_enable = (w83781d_read_value(data, | |
1472 | W83781D_REG_PWMCLK12) & 0x08) >> 3; | |
1473 | } | |
1474 | ||
1475 | data->temp = w83781d_read_value(data, W83781D_REG_TEMP(1)); | |
1476 | data->temp_max = | |
1477 | w83781d_read_value(data, W83781D_REG_TEMP_OVER(1)); | |
1478 | data->temp_max_hyst = | |
1479 | w83781d_read_value(data, W83781D_REG_TEMP_HYST(1)); | |
1480 | data->temp_add[0] = | |
1481 | w83781d_read_value(data, W83781D_REG_TEMP(2)); | |
1482 | data->temp_max_add[0] = | |
1483 | w83781d_read_value(data, W83781D_REG_TEMP_OVER(2)); | |
1484 | data->temp_max_hyst_add[0] = | |
1485 | w83781d_read_value(data, W83781D_REG_TEMP_HYST(2)); | |
1486 | if (data->type != w83783s) { | |
1487 | data->temp_add[1] = | |
1488 | w83781d_read_value(data, W83781D_REG_TEMP(3)); | |
1489 | data->temp_max_add[1] = | |
1490 | w83781d_read_value(data, | |
1491 | W83781D_REG_TEMP_OVER(3)); | |
1492 | data->temp_max_hyst_add[1] = | |
1493 | w83781d_read_value(data, | |
1494 | W83781D_REG_TEMP_HYST(3)); | |
1495 | } | |
1496 | i = w83781d_read_value(data, W83781D_REG_VID_FANDIV); | |
1497 | data->vid = i & 0x0f; | |
1498 | data->vid |= (w83781d_read_value(data, | |
1499 | W83781D_REG_CHIPID) & 0x01) << 4; | |
1500 | data->fan_div[0] = (i >> 4) & 0x03; | |
1501 | data->fan_div[1] = (i >> 6) & 0x03; | |
1502 | data->fan_div[2] = (w83781d_read_value(data, | |
1503 | W83781D_REG_PIN) >> 6) & 0x03; | |
1504 | if ((data->type != w83781d) && (data->type != as99127f)) { | |
1505 | i = w83781d_read_value(data, W83781D_REG_VBAT); | |
1506 | data->fan_div[0] |= (i >> 3) & 0x04; | |
1507 | data->fan_div[1] |= (i >> 4) & 0x04; | |
1508 | data->fan_div[2] |= (i >> 5) & 0x04; | |
1509 | } | |
1510 | if (data->type == w83782d) { | |
1511 | data->alarms = w83781d_read_value(data, | |
1512 | W83782D_REG_ALARM1) | |
1513 | | (w83781d_read_value(data, | |
1514 | W83782D_REG_ALARM2) << 8) | |
1515 | | (w83781d_read_value(data, | |
1516 | W83782D_REG_ALARM3) << 16); | |
1517 | } else if (data->type == w83783s) { | |
1518 | data->alarms = w83781d_read_value(data, | |
1519 | W83782D_REG_ALARM1) | |
1520 | | (w83781d_read_value(data, | |
1521 | W83782D_REG_ALARM2) << 8); | |
1522 | } else { | |
1523 | /* No real-time status registers, fall back to | |
1524 | interrupt status registers */ | |
1525 | data->alarms = w83781d_read_value(data, | |
1526 | W83781D_REG_ALARM1) | |
1527 | | (w83781d_read_value(data, | |
1528 | W83781D_REG_ALARM2) << 8); | |
1529 | } | |
1530 | i = w83781d_read_value(data, W83781D_REG_BEEP_INTS2); | |
1531 | data->beep_mask = (i << 8) + | |
1532 | w83781d_read_value(data, W83781D_REG_BEEP_INTS1); | |
1533 | if ((data->type != w83781d) && (data->type != as99127f)) { | |
1534 | data->beep_mask |= | |
1535 | w83781d_read_value(data, | |
1536 | W83781D_REG_BEEP_INTS3) << 16; | |
1537 | } | |
1538 | data->last_updated = jiffies; | |
1539 | data->valid = 1; | |
1540 | } | |
1541 | ||
1542 | mutex_unlock(&data->update_lock); | |
1543 | ||
1544 | return data; | |
1545 | } | |
1546 | ||
1547 | static const struct i2c_device_id w83781d_ids[] = { | |
1548 | { "w83781d", w83781d, }, | |
1549 | { "w83782d", w83782d, }, | |
1550 | { "w83783s", w83783s, }, | |
1551 | { "as99127f", as99127f }, | |
1552 | { /* LIST END */ } | |
1553 | }; | |
1554 | MODULE_DEVICE_TABLE(i2c, w83781d_ids); | |
1555 | ||
1556 | static struct i2c_driver w83781d_driver = { | |
1557 | .class = I2C_CLASS_HWMON, | |
1558 | .driver = { | |
1559 | .name = "w83781d", | |
1560 | }, | |
1561 | .probe = w83781d_probe, | |
1562 | .remove = w83781d_remove, | |
1563 | .id_table = w83781d_ids, | |
1564 | .detect = w83781d_detect, | |
1565 | .address_data = &addr_data, | |
1566 | }; | |
1567 | ||
1568 | /* | |
1569 | * ISA related code | |
1570 | */ | |
1571 | #ifdef CONFIG_ISA | |
1572 | ||
1573 | /* ISA device, if found */ | |
1574 | static struct platform_device *pdev; | |
1575 | ||
1576 | static unsigned short isa_address = 0x290; | |
1577 | ||
1578 | /* I2C devices get this name attribute automatically, but for ISA devices | |
1579 | we must create it by ourselves. */ | |
1580 | static ssize_t | |
1581 | show_name(struct device *dev, struct device_attribute *devattr, char *buf) | |
1582 | { | |
1583 | struct w83781d_data *data = dev_get_drvdata(dev); | |
1584 | return sprintf(buf, "%s\n", data->name); | |
1585 | } | |
1586 | static DEVICE_ATTR(name, S_IRUGO, show_name, NULL); | |
1587 | ||
1588 | static struct w83781d_data *w83781d_data_if_isa(void) | |
1589 | { | |
1590 | return pdev ? platform_get_drvdata(pdev) : NULL; | |
1591 | } | |
1592 | ||
1593 | /* Returns 1 if the I2C chip appears to be an alias of the ISA chip */ | |
1594 | static int w83781d_alias_detect(struct i2c_client *client, u8 chipid) | |
1595 | { | |
1596 | struct w83781d_data *isa; | |
1597 | int i; | |
1598 | ||
1599 | if (!pdev) /* No ISA chip */ | |
1600 | return 0; | |
1601 | ||
1602 | isa = platform_get_drvdata(pdev); | |
1603 | ||
1604 | if (w83781d_read_value(isa, W83781D_REG_I2C_ADDR) != client->addr) | |
1605 | return 0; /* Address doesn't match */ | |
1606 | if (w83781d_read_value(isa, W83781D_REG_WCHIPID) != chipid) | |
1607 | return 0; /* Chip type doesn't match */ | |
1608 | ||
1609 | /* We compare all the limit registers, the config register and the | |
1610 | * interrupt mask registers */ | |
1611 | for (i = 0x2b; i <= 0x3d; i++) { | |
1612 | if (w83781d_read_value(isa, i) != | |
1613 | i2c_smbus_read_byte_data(client, i)) | |
1614 | return 0; | |
1615 | } | |
1616 | if (w83781d_read_value(isa, W83781D_REG_CONFIG) != | |
1617 | i2c_smbus_read_byte_data(client, W83781D_REG_CONFIG)) | |
1618 | return 0; | |
1619 | for (i = 0x43; i <= 0x46; i++) { | |
1620 | if (w83781d_read_value(isa, i) != | |
1621 | i2c_smbus_read_byte_data(client, i)) | |
1622 | return 0; | |
1623 | } | |
1624 | ||
1625 | return 1; | |
1626 | } | |
1627 | ||
1628 | static int | |
1629 | w83781d_read_value_isa(struct w83781d_data *data, u16 reg) | |
1630 | { | |
1631 | int word_sized, res; | |
1632 | ||
1633 | word_sized = (((reg & 0xff00) == 0x100) | |
1634 | || ((reg & 0xff00) == 0x200)) | |
1635 | && (((reg & 0x00ff) == 0x50) | |
1636 | || ((reg & 0x00ff) == 0x53) | |
1637 | || ((reg & 0x00ff) == 0x55)); | |
1638 | if (reg & 0xff00) { | |
1639 | outb_p(W83781D_REG_BANK, | |
1640 | data->isa_addr + W83781D_ADDR_REG_OFFSET); | |
1641 | outb_p(reg >> 8, | |
1642 | data->isa_addr + W83781D_DATA_REG_OFFSET); | |
1643 | } | |
1644 | outb_p(reg & 0xff, data->isa_addr + W83781D_ADDR_REG_OFFSET); | |
1645 | res = inb_p(data->isa_addr + W83781D_DATA_REG_OFFSET); | |
1646 | if (word_sized) { | |
1647 | outb_p((reg & 0xff) + 1, | |
1648 | data->isa_addr + W83781D_ADDR_REG_OFFSET); | |
1649 | res = | |
1650 | (res << 8) + inb_p(data->isa_addr + | |
1651 | W83781D_DATA_REG_OFFSET); | |
1652 | } | |
1653 | if (reg & 0xff00) { | |
1654 | outb_p(W83781D_REG_BANK, | |
1655 | data->isa_addr + W83781D_ADDR_REG_OFFSET); | |
1656 | outb_p(0, data->isa_addr + W83781D_DATA_REG_OFFSET); | |
1657 | } | |
1658 | return res; | |
1659 | } | |
1660 | ||
1661 | static void | |
1662 | w83781d_write_value_isa(struct w83781d_data *data, u16 reg, u16 value) | |
1663 | { | |
1664 | int word_sized; | |
1665 | ||
1666 | word_sized = (((reg & 0xff00) == 0x100) | |
1667 | || ((reg & 0xff00) == 0x200)) | |
1668 | && (((reg & 0x00ff) == 0x53) | |
1669 | || ((reg & 0x00ff) == 0x55)); | |
1670 | if (reg & 0xff00) { | |
1671 | outb_p(W83781D_REG_BANK, | |
1672 | data->isa_addr + W83781D_ADDR_REG_OFFSET); | |
1673 | outb_p(reg >> 8, | |
1674 | data->isa_addr + W83781D_DATA_REG_OFFSET); | |
1675 | } | |
1676 | outb_p(reg & 0xff, data->isa_addr + W83781D_ADDR_REG_OFFSET); | |
1677 | if (word_sized) { | |
1678 | outb_p(value >> 8, | |
1679 | data->isa_addr + W83781D_DATA_REG_OFFSET); | |
1680 | outb_p((reg & 0xff) + 1, | |
1681 | data->isa_addr + W83781D_ADDR_REG_OFFSET); | |
1682 | } | |
1683 | outb_p(value & 0xff, data->isa_addr + W83781D_DATA_REG_OFFSET); | |
1684 | if (reg & 0xff00) { | |
1685 | outb_p(W83781D_REG_BANK, | |
1686 | data->isa_addr + W83781D_ADDR_REG_OFFSET); | |
1687 | outb_p(0, data->isa_addr + W83781D_DATA_REG_OFFSET); | |
1688 | } | |
1689 | } | |
1690 | ||
1691 | /* The SMBus locks itself, usually, but nothing may access the Winbond between | |
1692 | bank switches. ISA access must always be locked explicitly! | |
1693 | We ignore the W83781D BUSY flag at this moment - it could lead to deadlocks, | |
1694 | would slow down the W83781D access and should not be necessary. | |
1695 | There are some ugly typecasts here, but the good news is - they should | |
1696 | nowhere else be necessary! */ | |
1697 | static int | |
1698 | w83781d_read_value(struct w83781d_data *data, u16 reg) | |
1699 | { | |
1700 | struct i2c_client *client = data->client; | |
1701 | int res; | |
1702 | ||
1703 | mutex_lock(&data->lock); | |
1704 | if (client) | |
1705 | res = w83781d_read_value_i2c(data, reg); | |
1706 | else | |
1707 | res = w83781d_read_value_isa(data, reg); | |
1708 | mutex_unlock(&data->lock); | |
1709 | return res; | |
1710 | } | |
1711 | ||
1712 | static int | |
1713 | w83781d_write_value(struct w83781d_data *data, u16 reg, u16 value) | |
1714 | { | |
1715 | struct i2c_client *client = data->client; | |
1716 | ||
1717 | mutex_lock(&data->lock); | |
1718 | if (client) | |
1719 | w83781d_write_value_i2c(data, reg, value); | |
1720 | else | |
1721 | w83781d_write_value_isa(data, reg, value); | |
1722 | mutex_unlock(&data->lock); | |
1723 | return 0; | |
1724 | } | |
1725 | ||
1726 | static int __devinit | |
1727 | w83781d_isa_probe(struct platform_device *pdev) | |
1728 | { | |
1729 | int err, reg; | |
1730 | struct w83781d_data *data; | |
1731 | struct resource *res; | |
1732 | ||
1733 | /* Reserve the ISA region */ | |
1734 | res = platform_get_resource(pdev, IORESOURCE_IO, 0); | |
1735 | if (!request_region(res->start + W83781D_ADDR_REG_OFFSET, 2, | |
1736 | "w83781d")) { | |
1737 | err = -EBUSY; | |
1738 | goto exit; | |
1739 | } | |
1740 | ||
1741 | data = kzalloc(sizeof(struct w83781d_data), GFP_KERNEL); | |
1742 | if (!data) { | |
1743 | err = -ENOMEM; | |
1744 | goto exit_release_region; | |
1745 | } | |
1746 | mutex_init(&data->lock); | |
1747 | data->isa_addr = res->start; | |
1748 | platform_set_drvdata(pdev, data); | |
1749 | ||
1750 | reg = w83781d_read_value(data, W83781D_REG_WCHIPID); | |
1751 | switch (reg) { | |
1752 | case 0x30: | |
1753 | data->type = w83782d; | |
1754 | data->name = "w83782d"; | |
1755 | break; | |
1756 | default: | |
1757 | data->type = w83781d; | |
1758 | data->name = "w83781d"; | |
1759 | } | |
1760 | ||
1761 | /* Initialize the W83781D chip */ | |
1762 | w83781d_init_device(&pdev->dev); | |
1763 | ||
1764 | /* Register sysfs hooks */ | |
1765 | err = w83781d_create_files(&pdev->dev, data->type, 1); | |
1766 | if (err) | |
1767 | goto exit_remove_files; | |
1768 | ||
1769 | err = device_create_file(&pdev->dev, &dev_attr_name); | |
1770 | if (err) | |
1771 | goto exit_remove_files; | |
1772 | ||
1773 | data->hwmon_dev = hwmon_device_register(&pdev->dev); | |
1774 | if (IS_ERR(data->hwmon_dev)) { | |
1775 | err = PTR_ERR(data->hwmon_dev); | |
1776 | goto exit_remove_files; | |
1777 | } | |
1778 | ||
1779 | return 0; | |
1780 | ||
1781 | exit_remove_files: | |
1782 | sysfs_remove_group(&pdev->dev.kobj, &w83781d_group); | |
1783 | sysfs_remove_group(&pdev->dev.kobj, &w83781d_group_opt); | |
1784 | device_remove_file(&pdev->dev, &dev_attr_name); | |
1785 | kfree(data); | |
1786 | exit_release_region: | |
1787 | release_region(res->start + W83781D_ADDR_REG_OFFSET, 2); | |
1788 | exit: | |
1789 | return err; | |
1790 | } | |
1791 | ||
1792 | static int __devexit | |
1793 | w83781d_isa_remove(struct platform_device *pdev) | |
1794 | { | |
1795 | struct w83781d_data *data = platform_get_drvdata(pdev); | |
1796 | ||
1797 | hwmon_device_unregister(data->hwmon_dev); | |
1798 | sysfs_remove_group(&pdev->dev.kobj, &w83781d_group); | |
1799 | sysfs_remove_group(&pdev->dev.kobj, &w83781d_group_opt); | |
1800 | device_remove_file(&pdev->dev, &dev_attr_name); | |
1801 | release_region(data->isa_addr + W83781D_ADDR_REG_OFFSET, 2); | |
1802 | kfree(data); | |
1803 | ||
1804 | return 0; | |
1805 | } | |
1806 | ||
1807 | static struct platform_driver w83781d_isa_driver = { | |
1808 | .driver = { | |
1809 | .owner = THIS_MODULE, | |
1810 | .name = "w83781d", | |
1811 | }, | |
1812 | .probe = w83781d_isa_probe, | |
1813 | .remove = __devexit_p(w83781d_isa_remove), | |
1814 | }; | |
1815 | ||
1816 | /* return 1 if a supported chip is found, 0 otherwise */ | |
1817 | static int __init | |
1818 | w83781d_isa_found(unsigned short address) | |
1819 | { | |
1820 | int val, save, found = 0; | |
1821 | ||
1822 | /* We have to request the region in two parts because some | |
1823 | boards declare base+4 to base+7 as a PNP device */ | |
1824 | if (!request_region(address, 4, "w83781d")) { | |
1825 | pr_debug("w83781d: Failed to request low part of region\n"); | |
1826 | return 0; | |
1827 | } | |
1828 | if (!request_region(address + 4, 4, "w83781d")) { | |
1829 | pr_debug("w83781d: Failed to request high part of region\n"); | |
1830 | release_region(address, 4); | |
1831 | return 0; | |
1832 | } | |
1833 | ||
1834 | #define REALLY_SLOW_IO | |
1835 | /* We need the timeouts for at least some W83781D-like | |
1836 | chips. But only if we read 'undefined' registers. */ | |
1837 | val = inb_p(address + 1); | |
1838 | if (inb_p(address + 2) != val | |
1839 | || inb_p(address + 3) != val | |
1840 | || inb_p(address + 7) != val) { | |
1841 | pr_debug("w83781d: Detection failed at step 1\n"); | |
1842 | goto release; | |
1843 | } | |
1844 | #undef REALLY_SLOW_IO | |
1845 | ||
1846 | /* We should be able to change the 7 LSB of the address port. The | |
1847 | MSB (busy flag) should be clear initially, set after the write. */ | |
1848 | save = inb_p(address + W83781D_ADDR_REG_OFFSET); | |
1849 | if (save & 0x80) { | |
1850 | pr_debug("w83781d: Detection failed at step 2\n"); | |
1851 | goto release; | |
1852 | } | |
1853 | val = ~save & 0x7f; | |
1854 | outb_p(val, address + W83781D_ADDR_REG_OFFSET); | |
1855 | if (inb_p(address + W83781D_ADDR_REG_OFFSET) != (val | 0x80)) { | |
1856 | outb_p(save, address + W83781D_ADDR_REG_OFFSET); | |
1857 | pr_debug("w83781d: Detection failed at step 3\n"); | |
1858 | goto release; | |
1859 | } | |
1860 | ||
1861 | /* We found a device, now see if it could be a W83781D */ | |
1862 | outb_p(W83781D_REG_CONFIG, address + W83781D_ADDR_REG_OFFSET); | |
1863 | val = inb_p(address + W83781D_DATA_REG_OFFSET); | |
1864 | if (val & 0x80) { | |
1865 | pr_debug("w83781d: Detection failed at step 4\n"); | |
1866 | goto release; | |
1867 | } | |
1868 | outb_p(W83781D_REG_BANK, address + W83781D_ADDR_REG_OFFSET); | |
1869 | save = inb_p(address + W83781D_DATA_REG_OFFSET); | |
1870 | outb_p(W83781D_REG_CHIPMAN, address + W83781D_ADDR_REG_OFFSET); | |
1871 | val = inb_p(address + W83781D_DATA_REG_OFFSET); | |
1872 | if ((!(save & 0x80) && (val != 0xa3)) | |
1873 | || ((save & 0x80) && (val != 0x5c))) { | |
1874 | pr_debug("w83781d: Detection failed at step 5\n"); | |
1875 | goto release; | |
1876 | } | |
1877 | outb_p(W83781D_REG_I2C_ADDR, address + W83781D_ADDR_REG_OFFSET); | |
1878 | val = inb_p(address + W83781D_DATA_REG_OFFSET); | |
1879 | if (val < 0x03 || val > 0x77) { /* Not a valid I2C address */ | |
1880 | pr_debug("w83781d: Detection failed at step 6\n"); | |
1881 | goto release; | |
1882 | } | |
1883 | ||
1884 | /* The busy flag should be clear again */ | |
1885 | if (inb_p(address + W83781D_ADDR_REG_OFFSET) & 0x80) { | |
1886 | pr_debug("w83781d: Detection failed at step 7\n"); | |
1887 | goto release; | |
1888 | } | |
1889 | ||
1890 | /* Determine the chip type */ | |
1891 | outb_p(W83781D_REG_BANK, address + W83781D_ADDR_REG_OFFSET); | |
1892 | save = inb_p(address + W83781D_DATA_REG_OFFSET); | |
1893 | outb_p(save & 0xf8, address + W83781D_DATA_REG_OFFSET); | |
1894 | outb_p(W83781D_REG_WCHIPID, address + W83781D_ADDR_REG_OFFSET); | |
1895 | val = inb_p(address + W83781D_DATA_REG_OFFSET); | |
1896 | if ((val & 0xfe) == 0x10 /* W83781D */ | |
1897 | || val == 0x30) /* W83782D */ | |
1898 | found = 1; | |
1899 | ||
1900 | if (found) | |
1901 | pr_info("w83781d: Found a %s chip at %#x\n", | |
1902 | val == 0x30 ? "W83782D" : "W83781D", (int)address); | |
1903 | ||
1904 | release: | |
1905 | release_region(address + 4, 4); | |
1906 | release_region(address, 4); | |
1907 | return found; | |
1908 | } | |
1909 | ||
1910 | static int __init | |
1911 | w83781d_isa_device_add(unsigned short address) | |
1912 | { | |
1913 | struct resource res = { | |
1914 | .start = address, | |
1915 | .end = address + W83781D_EXTENT - 1, | |
1916 | .name = "w83781d", | |
1917 | .flags = IORESOURCE_IO, | |
1918 | }; | |
1919 | int err; | |
1920 | ||
1921 | pdev = platform_device_alloc("w83781d", address); | |
1922 | if (!pdev) { | |
1923 | err = -ENOMEM; | |
1924 | printk(KERN_ERR "w83781d: Device allocation failed\n"); | |
1925 | goto exit; | |
1926 | } | |
1927 | ||
1928 | err = platform_device_add_resources(pdev, &res, 1); | |
1929 | if (err) { | |
1930 | printk(KERN_ERR "w83781d: Device resource addition failed " | |
1931 | "(%d)\n", err); | |
1932 | goto exit_device_put; | |
1933 | } | |
1934 | ||
1935 | err = platform_device_add(pdev); | |
1936 | if (err) { | |
1937 | printk(KERN_ERR "w83781d: Device addition failed (%d)\n", | |
1938 | err); | |
1939 | goto exit_device_put; | |
1940 | } | |
1941 | ||
1942 | return 0; | |
1943 | ||
1944 | exit_device_put: | |
1945 | platform_device_put(pdev); | |
1946 | exit: | |
1947 | pdev = NULL; | |
1948 | return err; | |
1949 | } | |
1950 | ||
1951 | static int __init | |
1952 | w83781d_isa_register(void) | |
1953 | { | |
1954 | int res; | |
1955 | ||
1956 | if (w83781d_isa_found(isa_address)) { | |
1957 | res = platform_driver_register(&w83781d_isa_driver); | |
1958 | if (res) | |
1959 | goto exit; | |
1960 | ||
1961 | /* Sets global pdev as a side effect */ | |
1962 | res = w83781d_isa_device_add(isa_address); | |
1963 | if (res) | |
1964 | goto exit_unreg_isa_driver; | |
1965 | } | |
1966 | ||
1967 | return 0; | |
1968 | ||
1969 | exit_unreg_isa_driver: | |
1970 | platform_driver_unregister(&w83781d_isa_driver); | |
1971 | exit: | |
1972 | return res; | |
1973 | } | |
1974 | ||
1975 | static void | |
1976 | w83781d_isa_unregister(void) | |
1977 | { | |
1978 | if (pdev) { | |
1979 | platform_device_unregister(pdev); | |
1980 | platform_driver_unregister(&w83781d_isa_driver); | |
1981 | } | |
1982 | } | |
1983 | #else /* !CONFIG_ISA */ | |
1984 | ||
1985 | static struct w83781d_data *w83781d_data_if_isa(void) | |
1986 | { | |
1987 | return NULL; | |
1988 | } | |
1989 | ||
1990 | static int | |
1991 | w83781d_alias_detect(struct i2c_client *client, u8 chipid) | |
1992 | { | |
1993 | return 0; | |
1994 | } | |
1995 | ||
1996 | static int | |
1997 | w83781d_read_value(struct w83781d_data *data, u16 reg) | |
1998 | { | |
1999 | int res; | |
2000 | ||
2001 | mutex_lock(&data->lock); | |
2002 | res = w83781d_read_value_i2c(data, reg); | |
2003 | mutex_unlock(&data->lock); | |
2004 | ||
2005 | return res; | |
2006 | } | |
2007 | ||
2008 | static int | |
2009 | w83781d_write_value(struct w83781d_data *data, u16 reg, u16 value) | |
2010 | { | |
2011 | mutex_lock(&data->lock); | |
2012 | w83781d_write_value_i2c(data, reg, value); | |
2013 | mutex_unlock(&data->lock); | |
2014 | ||
2015 | return 0; | |
2016 | } | |
2017 | ||
2018 | static int __init | |
2019 | w83781d_isa_register(void) | |
2020 | { | |
2021 | return 0; | |
2022 | } | |
2023 | ||
2024 | static void | |
2025 | w83781d_isa_unregister(void) | |
2026 | { | |
2027 | } | |
2028 | #endif /* CONFIG_ISA */ | |
2029 | ||
2030 | static int __init | |
2031 | sensors_w83781d_init(void) | |
2032 | { | |
2033 | int res; | |
2034 | ||
2035 | /* We register the ISA device first, so that we can skip the | |
2036 | * registration of an I2C interface to the same device. */ | |
2037 | res = w83781d_isa_register(); | |
2038 | if (res) | |
2039 | goto exit; | |
2040 | ||
2041 | res = i2c_add_driver(&w83781d_driver); | |
2042 | if (res) | |
2043 | goto exit_unreg_isa; | |
2044 | ||
2045 | return 0; | |
2046 | ||
2047 | exit_unreg_isa: | |
2048 | w83781d_isa_unregister(); | |
2049 | exit: | |
2050 | return res; | |
2051 | } | |
2052 | ||
2053 | static void __exit | |
2054 | sensors_w83781d_exit(void) | |
2055 | { | |
2056 | w83781d_isa_unregister(); | |
2057 | i2c_del_driver(&w83781d_driver); | |
2058 | } | |
2059 | ||
2060 | MODULE_AUTHOR("Frodo Looijaard <frodol@dds.nl>, " | |
2061 | "Philip Edelbrock <phil@netroedge.com>, " | |
2062 | "and Mark Studebaker <mdsxyz123@yahoo.com>"); | |
2063 | MODULE_DESCRIPTION("W83781D driver"); | |
2064 | MODULE_LICENSE("GPL"); | |
2065 | ||
2066 | module_init(sensors_w83781d_init); | |
2067 | module_exit(sensors_w83781d_exit); |