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ab41319e JH |
1 | /* |
2 | * vt1211.c - driver for the VIA VT1211 Super-I/O chip integrated hardware | |
3 | * monitoring features | |
4 | * Copyright (C) 2006 Juerg Haefliger <juergh@gmail.com> | |
5 | * | |
6 | * This driver is based on the driver for kernel 2.4 by Mark D. Studebaker | |
7 | * and its port to kernel 2.6 by Lars Ekman. | |
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 | #include <linux/module.h> | |
25 | #include <linux/init.h> | |
26 | #include <linux/slab.h> | |
27 | #include <linux/jiffies.h> | |
28 | #include <linux/platform_device.h> | |
29 | #include <linux/hwmon.h> | |
30 | #include <linux/hwmon-sysfs.h> | |
31 | #include <linux/hwmon-vid.h> | |
32 | #include <linux/err.h> | |
33 | #include <linux/mutex.h> | |
34 | #include <asm/io.h> | |
35 | ||
36 | static int uch_config = -1; | |
37 | module_param(uch_config, int, 0); | |
38 | MODULE_PARM_DESC(uch_config, "Initialize the universal channel configuration"); | |
39 | ||
40 | static int int_mode = -1; | |
41 | module_param(int_mode, int, 0); | |
42 | MODULE_PARM_DESC(int_mode, "Force the temperature interrupt mode"); | |
43 | ||
44 | static struct platform_device *pdev; | |
45 | ||
46 | #define DRVNAME "vt1211" | |
47 | ||
48 | /* --------------------------------------------------------------------- | |
49 | * Registers | |
50 | * | |
51 | * The sensors are defined as follows. | |
52 | * | |
53 | * Sensor Voltage Mode Temp Mode Notes (from the datasheet) | |
54 | * -------- ------------ --------- -------------------------- | |
55 | * Reading 1 temp1 Intel thermal diode | |
56 | * Reading 3 temp2 Internal thermal diode | |
57 | * UCH1/Reading2 in0 temp3 NTC type thermistor | |
58 | * UCH2 in1 temp4 +2.5V | |
59 | * UCH3 in2 temp5 VccP | |
60 | * UCH4 in3 temp6 +5V | |
61 | * UCH5 in4 temp7 +12V | |
62 | * 3.3V in5 Internal VDD (+3.3V) | |
63 | * | |
64 | * --------------------------------------------------------------------- */ | |
65 | ||
66 | /* Voltages (in) numbered 0-5 (ix) */ | |
67 | #define VT1211_REG_IN(ix) (0x21 + (ix)) | |
68 | #define VT1211_REG_IN_MIN(ix) ((ix) == 0 ? 0x3e : 0x2a + 2 * (ix)) | |
69 | #define VT1211_REG_IN_MAX(ix) ((ix) == 0 ? 0x3d : 0x29 + 2 * (ix)) | |
70 | ||
71 | /* Temperatures (temp) numbered 0-6 (ix) */ | |
72 | static u8 regtemp[] = {0x1f, 0x20, 0x21, 0x22, 0x23, 0x24, 0x25}; | |
73 | static u8 regtempmax[] = {0x39, 0x1d, 0x3d, 0x2b, 0x2d, 0x2f, 0x31}; | |
74 | static u8 regtemphyst[] = {0x3a, 0x1e, 0x3e, 0x2c, 0x2e, 0x30, 0x32}; | |
75 | ||
76 | /* Fans numbered 0-1 (ix) */ | |
77 | #define VT1211_REG_FAN(ix) (0x29 + (ix)) | |
78 | #define VT1211_REG_FAN_MIN(ix) (0x3b + (ix)) | |
79 | #define VT1211_REG_FAN_DIV 0x47 | |
80 | ||
81 | /* PWMs numbered 0-1 (ix) */ | |
82 | /* Auto points numbered 0-3 (ap) */ | |
83 | #define VT1211_REG_PWM(ix) (0x60 + (ix)) | |
84 | #define VT1211_REG_PWM_CLK 0x50 | |
85 | #define VT1211_REG_PWM_CTL 0x51 | |
86 | #define VT1211_REG_PWM_AUTO_TEMP(ap) (0x55 - (ap)) | |
87 | #define VT1211_REG_PWM_AUTO_PWM(ix, ap) (0x58 + 2 * (ix) - (ap)) | |
88 | ||
89 | /* Miscellaneous registers */ | |
90 | #define VT1211_REG_CONFIG 0x40 | |
91 | #define VT1211_REG_ALARM1 0x41 | |
92 | #define VT1211_REG_ALARM2 0x42 | |
93 | #define VT1211_REG_VID 0x45 | |
94 | #define VT1211_REG_UCH_CONFIG 0x4a | |
95 | #define VT1211_REG_TEMP1_CONFIG 0x4b | |
96 | #define VT1211_REG_TEMP2_CONFIG 0x4c | |
97 | ||
98 | /* In, temp & fan alarm bits */ | |
99 | static const u8 bitalarmin[] = {11, 0, 1, 3, 8, 2, 9}; | |
100 | static const u8 bitalarmtemp[] = {4, 15, 11, 0, 1, 3, 8}; | |
101 | static const u8 bitalarmfan[] = {6, 7}; | |
102 | ||
103 | /* --------------------------------------------------------------------- | |
104 | * Data structures and manipulation thereof | |
105 | * --------------------------------------------------------------------- */ | |
106 | ||
107 | struct vt1211_data { | |
108 | unsigned short addr; | |
109 | const char *name; | |
110 | struct class_device *class_dev; | |
111 | ||
112 | struct mutex update_lock; | |
113 | char valid; /* !=0 if following fields are valid */ | |
114 | unsigned long last_updated; /* In jiffies */ | |
115 | ||
116 | /* Register values */ | |
117 | u8 in[6]; | |
118 | u8 in_max[6]; | |
119 | u8 in_min[6]; | |
120 | u8 temp[7]; | |
121 | u8 temp_max[7]; | |
122 | u8 temp_hyst[7]; | |
123 | u8 fan[2]; | |
124 | u8 fan_min[2]; | |
125 | u8 fan_div[2]; | |
126 | u8 fan_ctl; | |
127 | u8 pwm[2]; | |
128 | u8 pwm_ctl[2]; | |
129 | u8 pwm_clk; | |
130 | u8 pwm_auto_temp[4]; | |
131 | u8 pwm_auto_pwm[2][4]; | |
132 | u8 vid; /* Read once at init time */ | |
133 | u8 vrm; | |
134 | u8 uch_config; /* Read once at init time */ | |
135 | u16 alarms; | |
136 | }; | |
137 | ||
138 | /* ix = [0-5] */ | |
139 | #define ISVOLT(ix, uch_config) ((ix) > 4 ? 1 : \ | |
140 | !(((uch_config) >> ((ix) + 2)) & 1)) | |
141 | ||
142 | /* ix = [0-6] */ | |
143 | #define ISTEMP(ix, uch_config) ((ix) < 2 ? 1 : \ | |
144 | ((uch_config) >> (ix)) & 1) | |
145 | ||
146 | /* in5 (ix = 5) is special. It's the internal 3.3V so it's scaled in the | |
147 | driver according to the VT1211 BIOS porting guide */ | |
148 | #define IN_FROM_REG(ix, reg) ((reg) < 3 ? 0 : (ix) == 5 ? \ | |
149 | (((reg) - 3) * 15882 + 479) / 958 : \ | |
150 | (((reg) - 3) * 10000 + 479) / 958) | |
151 | #define IN_TO_REG(ix, val) (SENSORS_LIMIT((ix) == 5 ? \ | |
152 | ((val) * 958 + 7941) / 15882 + 3 : \ | |
153 | ((val) * 958 + 5000) / 10000 + 3, 0, 255)) | |
154 | ||
155 | /* temp1 (ix = 0) is an intel thermal diode which is scaled in user space. | |
156 | temp2 (ix = 1) is the internal temp diode so it's scaled in the driver | |
157 | according to some measurements that I took on an EPIA M10000. | |
158 | temp3-7 are thermistor based so the driver returns the voltage measured at | |
159 | the pin (range 0V - 2.2V). */ | |
160 | #define TEMP_FROM_REG(ix, reg) ((ix) == 0 ? (reg) * 1000 : \ | |
161 | (ix) == 1 ? (reg) < 51 ? 0 : \ | |
162 | ((reg) - 51) * 1000 : \ | |
163 | ((253 - (reg)) * 2200 + 105) / 210) | |
164 | #define TEMP_TO_REG(ix, val) SENSORS_LIMIT( \ | |
165 | ((ix) == 0 ? ((val) + 500) / 1000 : \ | |
166 | (ix) == 1 ? ((val) + 500) / 1000 + 51 : \ | |
167 | 253 - ((val) * 210 + 1100) / 2200), 0, 255) | |
168 | ||
169 | #define DIV_FROM_REG(reg) (1 << (reg)) | |
170 | ||
171 | #define RPM_FROM_REG(reg, div) (((reg) == 0) || ((reg) == 255) ? 0 : \ | |
172 | 1310720 / (reg) / DIV_FROM_REG(div)) | |
173 | #define RPM_TO_REG(val, div) ((val) == 0 ? 255 : \ | |
174 | SENSORS_LIMIT((1310720 / (val) / \ | |
175 | DIV_FROM_REG(div)), 1, 254)) | |
176 | ||
177 | /* --------------------------------------------------------------------- | |
178 | * Super-I/O constants and functions | |
179 | * --------------------------------------------------------------------- */ | |
180 | ||
2219cd81 JH |
181 | /* Configuration index port registers |
182 | * The vt1211 can live at 2 different addresses so we need to probe both */ | |
183 | #define SIO_REG_CIP1 0x2e | |
184 | #define SIO_REG_CIP2 0x4e | |
ab41319e JH |
185 | |
186 | /* Configuration registers */ | |
187 | #define SIO_VT1211_LDN 0x07 /* logical device number */ | |
188 | #define SIO_VT1211_DEVID 0x20 /* device ID */ | |
189 | #define SIO_VT1211_DEVREV 0x21 /* device revision */ | |
190 | #define SIO_VT1211_ACTIVE 0x30 /* HW monitor active */ | |
191 | #define SIO_VT1211_BADDR 0x60 /* base I/O address */ | |
192 | #define SIO_VT1211_ID 0x3c /* VT1211 device ID */ | |
193 | ||
194 | /* VT1211 logical device numbers */ | |
195 | #define SIO_VT1211_LDN_HWMON 0x0b /* HW monitor */ | |
196 | ||
2219cd81 | 197 | static inline void superio_outb(int sio_cip, int reg, int val) |
ab41319e | 198 | { |
2219cd81 JH |
199 | outb(reg, sio_cip); |
200 | outb(val, sio_cip + 1); | |
ab41319e JH |
201 | } |
202 | ||
2219cd81 | 203 | static inline int superio_inb(int sio_cip, int reg) |
ab41319e | 204 | { |
2219cd81 JH |
205 | outb(reg, sio_cip); |
206 | return inb(sio_cip + 1); | |
ab41319e JH |
207 | } |
208 | ||
2219cd81 | 209 | static inline void superio_select(int sio_cip, int ldn) |
ab41319e | 210 | { |
2219cd81 JH |
211 | outb(SIO_VT1211_LDN, sio_cip); |
212 | outb(ldn, sio_cip + 1); | |
ab41319e JH |
213 | } |
214 | ||
2219cd81 | 215 | static inline void superio_enter(int sio_cip) |
ab41319e | 216 | { |
2219cd81 JH |
217 | outb(0x87, sio_cip); |
218 | outb(0x87, sio_cip); | |
ab41319e JH |
219 | } |
220 | ||
2219cd81 | 221 | static inline void superio_exit(int sio_cip) |
ab41319e | 222 | { |
2219cd81 | 223 | outb(0xaa, sio_cip); |
ab41319e JH |
224 | } |
225 | ||
226 | /* --------------------------------------------------------------------- | |
227 | * Device I/O access | |
228 | * --------------------------------------------------------------------- */ | |
229 | ||
230 | static inline u8 vt1211_read8(struct vt1211_data *data, u8 reg) | |
231 | { | |
232 | return inb(data->addr + reg); | |
233 | } | |
234 | ||
235 | static inline void vt1211_write8(struct vt1211_data *data, u8 reg, u8 val) | |
236 | { | |
237 | outb(val, data->addr + reg); | |
238 | } | |
239 | ||
240 | static struct vt1211_data *vt1211_update_device(struct device *dev) | |
241 | { | |
242 | struct vt1211_data *data = dev_get_drvdata(dev); | |
243 | int ix, val; | |
244 | ||
245 | mutex_lock(&data->update_lock); | |
246 | ||
247 | /* registers cache is refreshed after 1 second */ | |
248 | if (time_after(jiffies, data->last_updated + HZ) || !data->valid) { | |
249 | /* read VID */ | |
250 | data->vid = vt1211_read8(data, VT1211_REG_VID) & 0x1f; | |
251 | ||
252 | /* voltage (in) registers */ | |
253 | for (ix = 0; ix < ARRAY_SIZE(data->in); ix++) { | |
254 | if (ISVOLT(ix, data->uch_config)) { | |
255 | data->in[ix] = vt1211_read8(data, | |
256 | VT1211_REG_IN(ix)); | |
257 | data->in_min[ix] = vt1211_read8(data, | |
258 | VT1211_REG_IN_MIN(ix)); | |
259 | data->in_max[ix] = vt1211_read8(data, | |
260 | VT1211_REG_IN_MAX(ix)); | |
261 | } | |
262 | } | |
263 | ||
264 | /* temp registers */ | |
265 | for (ix = 0; ix < ARRAY_SIZE(data->temp); ix++) { | |
266 | if (ISTEMP(ix, data->uch_config)) { | |
267 | data->temp[ix] = vt1211_read8(data, | |
268 | regtemp[ix]); | |
269 | data->temp_max[ix] = vt1211_read8(data, | |
270 | regtempmax[ix]); | |
271 | data->temp_hyst[ix] = vt1211_read8(data, | |
272 | regtemphyst[ix]); | |
273 | } | |
274 | } | |
275 | ||
276 | /* fan & pwm registers */ | |
277 | for (ix = 0; ix < ARRAY_SIZE(data->fan); ix++) { | |
278 | data->fan[ix] = vt1211_read8(data, | |
279 | VT1211_REG_FAN(ix)); | |
280 | data->fan_min[ix] = vt1211_read8(data, | |
281 | VT1211_REG_FAN_MIN(ix)); | |
282 | data->pwm[ix] = vt1211_read8(data, | |
283 | VT1211_REG_PWM(ix)); | |
284 | } | |
285 | val = vt1211_read8(data, VT1211_REG_FAN_DIV); | |
286 | data->fan_div[0] = (val >> 4) & 3; | |
287 | data->fan_div[1] = (val >> 6) & 3; | |
288 | data->fan_ctl = val & 0xf; | |
289 | ||
290 | val = vt1211_read8(data, VT1211_REG_PWM_CTL); | |
291 | data->pwm_ctl[0] = val & 0xf; | |
292 | data->pwm_ctl[1] = (val >> 4) & 0xf; | |
293 | ||
294 | data->pwm_clk = vt1211_read8(data, VT1211_REG_PWM_CLK); | |
295 | ||
296 | /* pwm & temp auto point registers */ | |
297 | data->pwm_auto_pwm[0][1] = vt1211_read8(data, | |
298 | VT1211_REG_PWM_AUTO_PWM(0, 1)); | |
299 | data->pwm_auto_pwm[0][2] = vt1211_read8(data, | |
300 | VT1211_REG_PWM_AUTO_PWM(0, 2)); | |
301 | data->pwm_auto_pwm[1][1] = vt1211_read8(data, | |
302 | VT1211_REG_PWM_AUTO_PWM(1, 1)); | |
303 | data->pwm_auto_pwm[1][2] = vt1211_read8(data, | |
304 | VT1211_REG_PWM_AUTO_PWM(1, 2)); | |
305 | for (ix = 0; ix < ARRAY_SIZE(data->pwm_auto_temp); ix++) { | |
306 | data->pwm_auto_temp[ix] = vt1211_read8(data, | |
307 | VT1211_REG_PWM_AUTO_TEMP(ix)); | |
308 | } | |
309 | ||
310 | /* alarm registers */ | |
311 | data->alarms = (vt1211_read8(data, VT1211_REG_ALARM2) << 8) | | |
312 | vt1211_read8(data, VT1211_REG_ALARM1); | |
313 | ||
314 | data->last_updated = jiffies; | |
315 | data->valid = 1; | |
316 | } | |
317 | ||
318 | mutex_unlock(&data->update_lock); | |
319 | ||
320 | return data; | |
321 | } | |
322 | ||
323 | /* --------------------------------------------------------------------- | |
324 | * Voltage sysfs interfaces | |
325 | * ix = [0-5] | |
326 | * --------------------------------------------------------------------- */ | |
327 | ||
328 | #define SHOW_IN_INPUT 0 | |
329 | #define SHOW_SET_IN_MIN 1 | |
330 | #define SHOW_SET_IN_MAX 2 | |
331 | #define SHOW_IN_ALARM 3 | |
332 | ||
333 | static ssize_t show_in(struct device *dev, struct device_attribute *attr, | |
334 | char *buf) | |
335 | { | |
336 | struct vt1211_data *data = vt1211_update_device(dev); | |
337 | struct sensor_device_attribute_2 *sensor_attr_2 = | |
338 | to_sensor_dev_attr_2(attr); | |
339 | int ix = sensor_attr_2->index; | |
340 | int fn = sensor_attr_2->nr; | |
341 | int res; | |
342 | ||
343 | switch (fn) { | |
344 | case SHOW_IN_INPUT: | |
345 | res = IN_FROM_REG(ix, data->in[ix]); | |
346 | break; | |
347 | case SHOW_SET_IN_MIN: | |
348 | res = IN_FROM_REG(ix, data->in_min[ix]); | |
349 | break; | |
350 | case SHOW_SET_IN_MAX: | |
351 | res = IN_FROM_REG(ix, data->in_max[ix]); | |
352 | break; | |
353 | case SHOW_IN_ALARM: | |
354 | res = (data->alarms >> bitalarmin[ix]) & 1; | |
355 | break; | |
356 | default: | |
357 | res = 0; | |
358 | dev_dbg(dev, "Unknown attr fetch (%d)\n", fn); | |
359 | } | |
360 | ||
361 | return sprintf(buf, "%d\n", res); | |
362 | } | |
363 | ||
364 | static ssize_t set_in(struct device *dev, struct device_attribute *attr, | |
365 | const char *buf, size_t count) | |
366 | { | |
367 | struct vt1211_data *data = dev_get_drvdata(dev); | |
368 | struct sensor_device_attribute_2 *sensor_attr_2 = | |
369 | to_sensor_dev_attr_2(attr); | |
370 | int ix = sensor_attr_2->index; | |
371 | int fn = sensor_attr_2->nr; | |
372 | long val = simple_strtol(buf, NULL, 10); | |
373 | ||
374 | mutex_lock(&data->update_lock); | |
375 | switch (fn) { | |
376 | case SHOW_SET_IN_MIN: | |
377 | data->in_min[ix] = IN_TO_REG(ix, val); | |
378 | vt1211_write8(data, VT1211_REG_IN_MIN(ix), data->in_min[ix]); | |
379 | break; | |
380 | case SHOW_SET_IN_MAX: | |
381 | data->in_max[ix] = IN_TO_REG(ix, val); | |
382 | vt1211_write8(data, VT1211_REG_IN_MAX(ix), data->in_max[ix]); | |
383 | break; | |
384 | default: | |
385 | dev_dbg(dev, "Unknown attr fetch (%d)\n", fn); | |
386 | } | |
387 | mutex_unlock(&data->update_lock); | |
388 | ||
389 | return count; | |
390 | } | |
391 | ||
392 | /* --------------------------------------------------------------------- | |
393 | * Temperature sysfs interfaces | |
394 | * ix = [0-6] | |
395 | * --------------------------------------------------------------------- */ | |
396 | ||
397 | #define SHOW_TEMP_INPUT 0 | |
398 | #define SHOW_SET_TEMP_MAX 1 | |
399 | #define SHOW_SET_TEMP_MAX_HYST 2 | |
400 | #define SHOW_TEMP_ALARM 3 | |
401 | ||
402 | static ssize_t show_temp(struct device *dev, struct device_attribute *attr, | |
403 | char *buf) | |
404 | { | |
405 | struct vt1211_data *data = vt1211_update_device(dev); | |
406 | struct sensor_device_attribute_2 *sensor_attr_2 = | |
407 | to_sensor_dev_attr_2(attr); | |
408 | int ix = sensor_attr_2->index; | |
409 | int fn = sensor_attr_2->nr; | |
410 | int res; | |
411 | ||
412 | switch (fn) { | |
413 | case SHOW_TEMP_INPUT: | |
414 | res = TEMP_FROM_REG(ix, data->temp[ix]); | |
415 | break; | |
416 | case SHOW_SET_TEMP_MAX: | |
417 | res = TEMP_FROM_REG(ix, data->temp_max[ix]); | |
418 | break; | |
419 | case SHOW_SET_TEMP_MAX_HYST: | |
420 | res = TEMP_FROM_REG(ix, data->temp_hyst[ix]); | |
421 | break; | |
422 | case SHOW_TEMP_ALARM: | |
423 | res = (data->alarms >> bitalarmtemp[ix]) & 1; | |
424 | break; | |
425 | default: | |
426 | res = 0; | |
427 | dev_dbg(dev, "Unknown attr fetch (%d)\n", fn); | |
428 | } | |
429 | ||
430 | return sprintf(buf, "%d\n", res); | |
431 | } | |
432 | ||
433 | static ssize_t set_temp(struct device *dev, struct device_attribute *attr, | |
434 | const char *buf, size_t count) | |
435 | { | |
436 | struct vt1211_data *data = dev_get_drvdata(dev); | |
437 | struct sensor_device_attribute_2 *sensor_attr_2 = | |
438 | to_sensor_dev_attr_2(attr); | |
439 | int ix = sensor_attr_2->index; | |
440 | int fn = sensor_attr_2->nr; | |
441 | long val = simple_strtol(buf, NULL, 10); | |
442 | ||
443 | mutex_lock(&data->update_lock); | |
444 | switch (fn) { | |
445 | case SHOW_SET_TEMP_MAX: | |
446 | data->temp_max[ix] = TEMP_TO_REG(ix, val); | |
447 | vt1211_write8(data, regtempmax[ix], | |
448 | data->temp_max[ix]); | |
449 | break; | |
450 | case SHOW_SET_TEMP_MAX_HYST: | |
451 | data->temp_hyst[ix] = TEMP_TO_REG(ix, val); | |
452 | vt1211_write8(data, regtemphyst[ix], | |
453 | data->temp_hyst[ix]); | |
454 | break; | |
455 | default: | |
456 | dev_dbg(dev, "Unknown attr fetch (%d)\n", fn); | |
457 | } | |
458 | mutex_unlock(&data->update_lock); | |
459 | ||
460 | return count; | |
461 | } | |
462 | ||
463 | /* --------------------------------------------------------------------- | |
464 | * Fan sysfs interfaces | |
465 | * ix = [0-1] | |
466 | * --------------------------------------------------------------------- */ | |
467 | ||
468 | #define SHOW_FAN_INPUT 0 | |
469 | #define SHOW_SET_FAN_MIN 1 | |
470 | #define SHOW_SET_FAN_DIV 2 | |
471 | #define SHOW_FAN_ALARM 3 | |
472 | ||
473 | static ssize_t show_fan(struct device *dev, struct device_attribute *attr, | |
474 | char *buf) | |
475 | { | |
476 | struct vt1211_data *data = vt1211_update_device(dev); | |
477 | struct sensor_device_attribute_2 *sensor_attr_2 = | |
478 | to_sensor_dev_attr_2(attr); | |
479 | int ix = sensor_attr_2->index; | |
480 | int fn = sensor_attr_2->nr; | |
481 | int res; | |
482 | ||
483 | switch (fn) { | |
484 | case SHOW_FAN_INPUT: | |
485 | res = RPM_FROM_REG(data->fan[ix], data->fan_div[ix]); | |
486 | break; | |
487 | case SHOW_SET_FAN_MIN: | |
488 | res = RPM_FROM_REG(data->fan_min[ix], data->fan_div[ix]); | |
489 | break; | |
490 | case SHOW_SET_FAN_DIV: | |
491 | res = DIV_FROM_REG(data->fan_div[ix]); | |
492 | break; | |
493 | case SHOW_FAN_ALARM: | |
494 | res = (data->alarms >> bitalarmfan[ix]) & 1; | |
495 | break; | |
496 | default: | |
497 | res = 0; | |
498 | dev_dbg(dev, "Unknown attr fetch (%d)\n", fn); | |
499 | } | |
500 | ||
501 | return sprintf(buf, "%d\n", res); | |
502 | } | |
503 | ||
504 | static ssize_t set_fan(struct device *dev, struct device_attribute *attr, | |
505 | const char *buf, size_t count) | |
506 | { | |
507 | struct vt1211_data *data = dev_get_drvdata(dev); | |
508 | struct sensor_device_attribute_2 *sensor_attr_2 = | |
509 | to_sensor_dev_attr_2(attr); | |
510 | int ix = sensor_attr_2->index; | |
511 | int fn = sensor_attr_2->nr; | |
512 | long val = simple_strtol(buf, NULL, 10); | |
513 | int reg; | |
514 | ||
515 | mutex_lock(&data->update_lock); | |
516 | ||
517 | /* sync the data cache */ | |
518 | reg = vt1211_read8(data, VT1211_REG_FAN_DIV); | |
519 | data->fan_div[0] = (reg >> 4) & 3; | |
520 | data->fan_div[1] = (reg >> 6) & 3; | |
521 | data->fan_ctl = reg & 0xf; | |
522 | ||
523 | switch (fn) { | |
524 | case SHOW_SET_FAN_MIN: | |
525 | data->fan_min[ix] = RPM_TO_REG(val, data->fan_div[ix]); | |
526 | vt1211_write8(data, VT1211_REG_FAN_MIN(ix), | |
527 | data->fan_min[ix]); | |
528 | break; | |
529 | case SHOW_SET_FAN_DIV: | |
530 | switch (val) { | |
531 | case 1: data->fan_div[ix] = 0; break; | |
532 | case 2: data->fan_div[ix] = 1; break; | |
533 | case 4: data->fan_div[ix] = 2; break; | |
534 | case 8: data->fan_div[ix] = 3; break; | |
535 | default: | |
536 | count = -EINVAL; | |
537 | dev_warn(dev, "fan div value %ld not " | |
538 | "supported. Choose one of 1, 2, " | |
539 | "4, or 8.\n", val); | |
540 | goto EXIT; | |
541 | } | |
542 | vt1211_write8(data, VT1211_REG_FAN_DIV, | |
543 | ((data->fan_div[1] << 6) | | |
544 | (data->fan_div[0] << 4) | | |
545 | data->fan_ctl)); | |
546 | break; | |
547 | default: | |
548 | dev_dbg(dev, "Unknown attr fetch (%d)\n", fn); | |
549 | } | |
550 | ||
551 | EXIT: | |
552 | mutex_unlock(&data->update_lock); | |
553 | return count; | |
554 | } | |
555 | ||
556 | /* --------------------------------------------------------------------- | |
557 | * PWM sysfs interfaces | |
558 | * ix = [0-1] | |
559 | * --------------------------------------------------------------------- */ | |
560 | ||
561 | #define SHOW_PWM 0 | |
562 | #define SHOW_SET_PWM_ENABLE 1 | |
563 | #define SHOW_SET_PWM_FREQ 2 | |
564 | #define SHOW_SET_PWM_AUTO_CHANNELS_TEMP 3 | |
565 | ||
566 | static ssize_t show_pwm(struct device *dev, struct device_attribute *attr, | |
567 | char *buf) | |
568 | { | |
569 | struct vt1211_data *data = vt1211_update_device(dev); | |
570 | struct sensor_device_attribute_2 *sensor_attr_2 = | |
571 | to_sensor_dev_attr_2(attr); | |
572 | int ix = sensor_attr_2->index; | |
573 | int fn = sensor_attr_2->nr; | |
574 | int res; | |
575 | ||
576 | switch (fn) { | |
577 | case SHOW_PWM: | |
578 | res = data->pwm[ix]; | |
579 | break; | |
580 | case SHOW_SET_PWM_ENABLE: | |
581 | res = ((data->pwm_ctl[ix] >> 3) & 1) ? 2 : 0; | |
582 | break; | |
583 | case SHOW_SET_PWM_FREQ: | |
584 | res = 90000 >> (data->pwm_clk & 7); | |
585 | break; | |
586 | case SHOW_SET_PWM_AUTO_CHANNELS_TEMP: | |
587 | res = (data->pwm_ctl[ix] & 7) + 1; | |
588 | break; | |
589 | default: | |
590 | res = 0; | |
591 | dev_dbg(dev, "Unknown attr fetch (%d)\n", fn); | |
592 | } | |
593 | ||
594 | return sprintf(buf, "%d\n", res); | |
595 | } | |
596 | ||
597 | static ssize_t set_pwm(struct device *dev, struct device_attribute *attr, | |
598 | const char *buf, size_t count) | |
599 | { | |
600 | struct vt1211_data *data = dev_get_drvdata(dev); | |
601 | struct sensor_device_attribute_2 *sensor_attr_2 = | |
602 | to_sensor_dev_attr_2(attr); | |
603 | int ix = sensor_attr_2->index; | |
604 | int fn = sensor_attr_2->nr; | |
605 | long val = simple_strtol(buf, NULL, 10); | |
606 | int tmp, reg; | |
607 | ||
608 | mutex_lock(&data->update_lock); | |
609 | ||
610 | switch (fn) { | |
611 | case SHOW_SET_PWM_ENABLE: | |
612 | /* sync the data cache */ | |
613 | reg = vt1211_read8(data, VT1211_REG_FAN_DIV); | |
614 | data->fan_div[0] = (reg >> 4) & 3; | |
615 | data->fan_div[1] = (reg >> 6) & 3; | |
616 | data->fan_ctl = reg & 0xf; | |
617 | reg = vt1211_read8(data, VT1211_REG_PWM_CTL); | |
618 | data->pwm_ctl[0] = reg & 0xf; | |
619 | data->pwm_ctl[1] = (reg >> 4) & 0xf; | |
620 | switch (val) { | |
621 | case 0: | |
622 | data->pwm_ctl[ix] &= 7; | |
623 | /* disable SmartGuardian if both PWM outputs are | |
624 | * disabled */ | |
625 | if ((data->pwm_ctl[ix ^ 1] & 1) == 0) { | |
626 | data->fan_ctl &= 0xe; | |
627 | } | |
628 | break; | |
629 | case 2: | |
630 | data->pwm_ctl[ix] |= 8; | |
631 | data->fan_ctl |= 1; | |
632 | break; | |
633 | default: | |
634 | count = -EINVAL; | |
635 | dev_warn(dev, "pwm mode %ld not supported. " | |
636 | "Choose one of 0 or 2.\n", val); | |
637 | goto EXIT; | |
638 | } | |
639 | vt1211_write8(data, VT1211_REG_PWM_CTL, | |
640 | ((data->pwm_ctl[1] << 4) | | |
641 | data->pwm_ctl[0])); | |
642 | vt1211_write8(data, VT1211_REG_FAN_DIV, | |
643 | ((data->fan_div[1] << 6) | | |
644 | (data->fan_div[0] << 4) | | |
645 | data->fan_ctl)); | |
646 | break; | |
647 | case SHOW_SET_PWM_FREQ: | |
648 | val = 135000 / SENSORS_LIMIT(val, 135000 >> 7, 135000); | |
649 | /* calculate tmp = log2(val) */ | |
650 | tmp = 0; | |
651 | for (val >>= 1; val > 0; val >>= 1) { | |
652 | tmp++; | |
653 | } | |
654 | /* sync the data cache */ | |
655 | reg = vt1211_read8(data, VT1211_REG_PWM_CLK); | |
656 | data->pwm_clk = (reg & 0xf8) | tmp; | |
657 | vt1211_write8(data, VT1211_REG_PWM_CLK, data->pwm_clk); | |
658 | break; | |
659 | case SHOW_SET_PWM_AUTO_CHANNELS_TEMP: | |
660 | if ((val < 1) || (val > 7)) { | |
661 | count = -EINVAL; | |
662 | dev_warn(dev, "temp channel %ld not supported. " | |
663 | "Choose a value between 1 and 7.\n", val); | |
664 | goto EXIT; | |
665 | } | |
666 | if (!ISTEMP(val - 1, data->uch_config)) { | |
667 | count = -EINVAL; | |
668 | dev_warn(dev, "temp channel %ld is not available.\n", | |
669 | val); | |
670 | goto EXIT; | |
671 | } | |
672 | /* sync the data cache */ | |
673 | reg = vt1211_read8(data, VT1211_REG_PWM_CTL); | |
674 | data->pwm_ctl[0] = reg & 0xf; | |
675 | data->pwm_ctl[1] = (reg >> 4) & 0xf; | |
676 | data->pwm_ctl[ix] = (data->pwm_ctl[ix] & 8) | (val - 1); | |
677 | vt1211_write8(data, VT1211_REG_PWM_CTL, | |
678 | ((data->pwm_ctl[1] << 4) | data->pwm_ctl[0])); | |
679 | break; | |
680 | default: | |
681 | dev_dbg(dev, "Unknown attr fetch (%d)\n", fn); | |
682 | } | |
683 | ||
684 | EXIT: | |
685 | mutex_unlock(&data->update_lock); | |
686 | return count; | |
687 | } | |
688 | ||
689 | /* --------------------------------------------------------------------- | |
690 | * PWM auto point definitions | |
691 | * ix = [0-1] | |
692 | * ap = [0-3] | |
693 | * --------------------------------------------------------------------- */ | |
694 | ||
695 | /* | |
696 | * pwm[ix+1]_auto_point[ap+1]_temp mapping table: | |
697 | * Note that there is only a single set of temp auto points that controls both | |
698 | * PWM controllers. We still create 2 sets of sysfs files to make it look | |
699 | * more consistent even though they map to the same registers. | |
700 | * | |
701 | * ix ap : description | |
702 | * ------------------- | |
703 | * 0 0 : pwm1/2 off temperature (pwm_auto_temp[0]) | |
704 | * 0 1 : pwm1/2 low speed temperature (pwm_auto_temp[1]) | |
705 | * 0 2 : pwm1/2 high speed temperature (pwm_auto_temp[2]) | |
706 | * 0 3 : pwm1/2 full speed temperature (pwm_auto_temp[3]) | |
707 | * 1 0 : pwm1/2 off temperature (pwm_auto_temp[0]) | |
708 | * 1 1 : pwm1/2 low speed temperature (pwm_auto_temp[1]) | |
709 | * 1 2 : pwm1/2 high speed temperature (pwm_auto_temp[2]) | |
710 | * 1 3 : pwm1/2 full speed temperature (pwm_auto_temp[3]) | |
711 | */ | |
712 | ||
713 | static ssize_t show_pwm_auto_point_temp(struct device *dev, | |
714 | struct device_attribute *attr, | |
715 | char *buf) | |
716 | { | |
717 | struct vt1211_data *data = vt1211_update_device(dev); | |
718 | struct sensor_device_attribute_2 *sensor_attr_2 = | |
719 | to_sensor_dev_attr_2(attr); | |
720 | int ix = sensor_attr_2->index; | |
721 | int ap = sensor_attr_2->nr; | |
722 | ||
723 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->pwm_ctl[ix] & 7, | |
724 | data->pwm_auto_temp[ap])); | |
725 | } | |
726 | ||
727 | static ssize_t set_pwm_auto_point_temp(struct device *dev, | |
728 | struct device_attribute *attr, | |
729 | const char *buf, size_t count) | |
730 | { | |
731 | struct vt1211_data *data = dev_get_drvdata(dev); | |
732 | struct sensor_device_attribute_2 *sensor_attr_2 = | |
733 | to_sensor_dev_attr_2(attr); | |
734 | int ix = sensor_attr_2->index; | |
735 | int ap = sensor_attr_2->nr; | |
736 | long val = simple_strtol(buf, NULL, 10); | |
737 | int reg; | |
738 | ||
739 | mutex_lock(&data->update_lock); | |
740 | ||
741 | /* sync the data cache */ | |
742 | reg = vt1211_read8(data, VT1211_REG_PWM_CTL); | |
743 | data->pwm_ctl[0] = reg & 0xf; | |
744 | data->pwm_ctl[1] = (reg >> 4) & 0xf; | |
745 | ||
746 | data->pwm_auto_temp[ap] = TEMP_TO_REG(data->pwm_ctl[ix] & 7, val); | |
747 | vt1211_write8(data, VT1211_REG_PWM_AUTO_TEMP(ap), | |
748 | data->pwm_auto_temp[ap]); | |
749 | mutex_unlock(&data->update_lock); | |
750 | ||
751 | return count; | |
752 | } | |
753 | ||
754 | /* | |
755 | * pwm[ix+1]_auto_point[ap+1]_pwm mapping table: | |
756 | * Note that the PWM auto points 0 & 3 are hard-wired in the VT1211 and can't | |
757 | * be changed. | |
758 | * | |
759 | * ix ap : description | |
760 | * ------------------- | |
761 | * 0 0 : pwm1 off (pwm_auto_pwm[0][0], hard-wired to 0) | |
762 | * 0 1 : pwm1 low speed duty cycle (pwm_auto_pwm[0][1]) | |
763 | * 0 2 : pwm1 high speed duty cycle (pwm_auto_pwm[0][2]) | |
764 | * 0 3 : pwm1 full speed (pwm_auto_pwm[0][3], hard-wired to 255) | |
765 | * 1 0 : pwm2 off (pwm_auto_pwm[1][0], hard-wired to 0) | |
766 | * 1 1 : pwm2 low speed duty cycle (pwm_auto_pwm[1][1]) | |
767 | * 1 2 : pwm2 high speed duty cycle (pwm_auto_pwm[1][2]) | |
768 | * 1 3 : pwm2 full speed (pwm_auto_pwm[1][3], hard-wired to 255) | |
769 | */ | |
770 | ||
771 | static ssize_t show_pwm_auto_point_pwm(struct device *dev, | |
772 | struct device_attribute *attr, | |
773 | char *buf) | |
774 | { | |
775 | struct vt1211_data *data = vt1211_update_device(dev); | |
776 | struct sensor_device_attribute_2 *sensor_attr_2 = | |
777 | to_sensor_dev_attr_2(attr); | |
778 | int ix = sensor_attr_2->index; | |
779 | int ap = sensor_attr_2->nr; | |
780 | ||
781 | return sprintf(buf, "%d\n", data->pwm_auto_pwm[ix][ap]); | |
782 | } | |
783 | ||
784 | static ssize_t set_pwm_auto_point_pwm(struct device *dev, | |
785 | struct device_attribute *attr, | |
786 | const char *buf, size_t count) | |
787 | { | |
788 | struct vt1211_data *data = dev_get_drvdata(dev); | |
789 | struct sensor_device_attribute_2 *sensor_attr_2 = | |
790 | to_sensor_dev_attr_2(attr); | |
791 | int ix = sensor_attr_2->index; | |
792 | int ap = sensor_attr_2->nr; | |
793 | long val = simple_strtol(buf, NULL, 10); | |
794 | ||
795 | if ((val < 0) || (val > 255)) { | |
796 | dev_err(dev, "pwm value %ld is out of range. " | |
797 | "Choose a value between 0 and 255." , val); | |
798 | return -EINVAL; | |
799 | } | |
800 | ||
801 | mutex_lock(&data->update_lock); | |
802 | data->pwm_auto_pwm[ix][ap] = val; | |
803 | vt1211_write8(data, VT1211_REG_PWM_AUTO_PWM(ix, ap), | |
804 | data->pwm_auto_pwm[ix][ap]); | |
805 | mutex_unlock(&data->update_lock); | |
806 | ||
807 | return count; | |
808 | } | |
809 | ||
810 | /* --------------------------------------------------------------------- | |
811 | * Miscellaneous sysfs interfaces (VRM, VID, name, and (legacy) alarms) | |
812 | * --------------------------------------------------------------------- */ | |
813 | ||
814 | static ssize_t show_vrm(struct device *dev, struct device_attribute *attr, | |
815 | char *buf) | |
816 | { | |
817 | struct vt1211_data *data = dev_get_drvdata(dev); | |
818 | ||
819 | return sprintf(buf, "%d\n", data->vrm); | |
820 | } | |
821 | ||
822 | static ssize_t set_vrm(struct device *dev, struct device_attribute *attr, | |
823 | const char *buf, size_t count) | |
824 | { | |
825 | struct vt1211_data *data = dev_get_drvdata(dev); | |
826 | long val = simple_strtol(buf, NULL, 10); | |
827 | ||
828 | data->vrm = val; | |
829 | ||
830 | return count; | |
831 | } | |
832 | ||
833 | static ssize_t show_vid(struct device *dev, struct device_attribute *attr, | |
834 | char *buf) | |
835 | { | |
836 | struct vt1211_data *data = dev_get_drvdata(dev); | |
837 | ||
838 | return sprintf(buf, "%d\n", vid_from_reg(data->vid, data->vrm)); | |
839 | } | |
840 | ||
841 | static ssize_t show_name(struct device *dev, | |
842 | struct device_attribute *attr, char *buf) | |
843 | { | |
844 | struct vt1211_data *data = dev_get_drvdata(dev); | |
845 | ||
846 | return sprintf(buf, "%s\n", data->name); | |
847 | } | |
848 | ||
849 | static ssize_t show_alarms(struct device *dev, | |
850 | struct device_attribute *attr, char *buf) | |
851 | { | |
852 | struct vt1211_data *data = vt1211_update_device(dev); | |
853 | ||
854 | return sprintf(buf, "%d\n", data->alarms); | |
855 | } | |
856 | ||
857 | /* --------------------------------------------------------------------- | |
858 | * Device attribute structs | |
859 | * --------------------------------------------------------------------- */ | |
860 | ||
861 | #define SENSOR_ATTR_IN_INPUT(ix) \ | |
862 | SENSOR_ATTR_2(in##ix##_input, S_IRUGO, \ | |
863 | show_in, NULL, SHOW_IN_INPUT, ix) | |
864 | ||
865 | static struct sensor_device_attribute_2 vt1211_sysfs_in_input[] = { | |
866 | SENSOR_ATTR_IN_INPUT(0), | |
867 | SENSOR_ATTR_IN_INPUT(1), | |
868 | SENSOR_ATTR_IN_INPUT(2), | |
869 | SENSOR_ATTR_IN_INPUT(3), | |
870 | SENSOR_ATTR_IN_INPUT(4), | |
871 | SENSOR_ATTR_IN_INPUT(5), | |
872 | }; | |
873 | ||
874 | #define SENSOR_ATTR_IN_MIN(ix) \ | |
875 | SENSOR_ATTR_2(in##ix##_min, S_IRUGO | S_IWUSR, \ | |
876 | show_in, set_in, SHOW_SET_IN_MIN, ix) | |
877 | ||
878 | static struct sensor_device_attribute_2 vt1211_sysfs_in_min[] = { | |
879 | SENSOR_ATTR_IN_MIN(0), | |
880 | SENSOR_ATTR_IN_MIN(1), | |
881 | SENSOR_ATTR_IN_MIN(2), | |
882 | SENSOR_ATTR_IN_MIN(3), | |
883 | SENSOR_ATTR_IN_MIN(4), | |
884 | SENSOR_ATTR_IN_MIN(5), | |
885 | }; | |
886 | ||
887 | #define SENSOR_ATTR_IN_MAX(ix) \ | |
888 | SENSOR_ATTR_2(in##ix##_max, S_IRUGO | S_IWUSR, \ | |
889 | show_in, set_in, SHOW_SET_IN_MAX, ix) | |
890 | ||
891 | static struct sensor_device_attribute_2 vt1211_sysfs_in_max[] = { | |
892 | SENSOR_ATTR_IN_MAX(0), | |
893 | SENSOR_ATTR_IN_MAX(1), | |
894 | SENSOR_ATTR_IN_MAX(2), | |
895 | SENSOR_ATTR_IN_MAX(3), | |
896 | SENSOR_ATTR_IN_MAX(4), | |
897 | SENSOR_ATTR_IN_MAX(5), | |
898 | }; | |
899 | ||
900 | #define SENSOR_ATTR_IN_ALARM(ix) \ | |
901 | SENSOR_ATTR_2(in##ix##_alarm, S_IRUGO, \ | |
902 | show_in, NULL, SHOW_IN_ALARM, ix) | |
903 | ||
904 | static struct sensor_device_attribute_2 vt1211_sysfs_in_alarm[] = { | |
905 | SENSOR_ATTR_IN_ALARM(0), | |
906 | SENSOR_ATTR_IN_ALARM(1), | |
907 | SENSOR_ATTR_IN_ALARM(2), | |
908 | SENSOR_ATTR_IN_ALARM(3), | |
909 | SENSOR_ATTR_IN_ALARM(4), | |
910 | SENSOR_ATTR_IN_ALARM(5), | |
911 | }; | |
912 | ||
913 | #define SENSOR_ATTR_TEMP_INPUT(ix) \ | |
914 | SENSOR_ATTR_2(temp##ix##_input, S_IRUGO, \ | |
915 | show_temp, NULL, SHOW_TEMP_INPUT, ix-1) | |
916 | ||
917 | static struct sensor_device_attribute_2 vt1211_sysfs_temp_input[] = { | |
918 | SENSOR_ATTR_TEMP_INPUT(1), | |
919 | SENSOR_ATTR_TEMP_INPUT(2), | |
920 | SENSOR_ATTR_TEMP_INPUT(3), | |
921 | SENSOR_ATTR_TEMP_INPUT(4), | |
922 | SENSOR_ATTR_TEMP_INPUT(5), | |
923 | SENSOR_ATTR_TEMP_INPUT(6), | |
924 | SENSOR_ATTR_TEMP_INPUT(7), | |
925 | }; | |
926 | ||
927 | #define SENSOR_ATTR_TEMP_MAX(ix) \ | |
928 | SENSOR_ATTR_2(temp##ix##_max, S_IRUGO | S_IWUSR, \ | |
929 | show_temp, set_temp, SHOW_SET_TEMP_MAX, ix-1) | |
930 | ||
931 | static struct sensor_device_attribute_2 vt1211_sysfs_temp_max[] = { | |
932 | SENSOR_ATTR_TEMP_MAX(1), | |
933 | SENSOR_ATTR_TEMP_MAX(2), | |
934 | SENSOR_ATTR_TEMP_MAX(3), | |
935 | SENSOR_ATTR_TEMP_MAX(4), | |
936 | SENSOR_ATTR_TEMP_MAX(5), | |
937 | SENSOR_ATTR_TEMP_MAX(6), | |
938 | SENSOR_ATTR_TEMP_MAX(7), | |
939 | }; | |
940 | ||
941 | #define SENSOR_ATTR_TEMP_MAX_HYST(ix) \ | |
942 | SENSOR_ATTR_2(temp##ix##_max_hyst, S_IRUGO | S_IWUSR, \ | |
943 | show_temp, set_temp, SHOW_SET_TEMP_MAX_HYST, ix-1) | |
944 | ||
945 | static struct sensor_device_attribute_2 vt1211_sysfs_temp_max_hyst[] = { | |
946 | SENSOR_ATTR_TEMP_MAX_HYST(1), | |
947 | SENSOR_ATTR_TEMP_MAX_HYST(2), | |
948 | SENSOR_ATTR_TEMP_MAX_HYST(3), | |
949 | SENSOR_ATTR_TEMP_MAX_HYST(4), | |
950 | SENSOR_ATTR_TEMP_MAX_HYST(5), | |
951 | SENSOR_ATTR_TEMP_MAX_HYST(6), | |
952 | SENSOR_ATTR_TEMP_MAX_HYST(7), | |
953 | }; | |
954 | ||
955 | #define SENSOR_ATTR_TEMP_ALARM(ix) \ | |
956 | SENSOR_ATTR_2(temp##ix##_alarm, S_IRUGO, \ | |
957 | show_temp, NULL, SHOW_TEMP_ALARM, ix-1) | |
958 | ||
959 | static struct sensor_device_attribute_2 vt1211_sysfs_temp_alarm[] = { | |
960 | SENSOR_ATTR_TEMP_ALARM(1), | |
961 | SENSOR_ATTR_TEMP_ALARM(2), | |
962 | SENSOR_ATTR_TEMP_ALARM(3), | |
963 | SENSOR_ATTR_TEMP_ALARM(4), | |
964 | SENSOR_ATTR_TEMP_ALARM(5), | |
965 | SENSOR_ATTR_TEMP_ALARM(6), | |
966 | SENSOR_ATTR_TEMP_ALARM(7), | |
967 | }; | |
968 | ||
969 | #define SENSOR_ATTR_FAN(ix) \ | |
970 | SENSOR_ATTR_2(fan##ix##_input, S_IRUGO, \ | |
971 | show_fan, NULL, SHOW_FAN_INPUT, ix-1), \ | |
972 | SENSOR_ATTR_2(fan##ix##_min, S_IRUGO | S_IWUSR, \ | |
973 | show_fan, set_fan, SHOW_SET_FAN_MIN, ix-1), \ | |
974 | SENSOR_ATTR_2(fan##ix##_div, S_IRUGO | S_IWUSR, \ | |
975 | show_fan, set_fan, SHOW_SET_FAN_DIV, ix-1), \ | |
976 | SENSOR_ATTR_2(fan##ix##_alarm, S_IRUGO, \ | |
977 | show_fan, NULL, SHOW_FAN_ALARM, ix-1) | |
978 | ||
979 | #define SENSOR_ATTR_PWM(ix) \ | |
980 | SENSOR_ATTR_2(pwm##ix, S_IRUGO, \ | |
981 | show_pwm, NULL, SHOW_PWM, ix-1), \ | |
982 | SENSOR_ATTR_2(pwm##ix##_enable, S_IRUGO | S_IWUSR, \ | |
983 | show_pwm, set_pwm, SHOW_SET_PWM_ENABLE, ix-1), \ | |
984 | SENSOR_ATTR_2(pwm##ix##_auto_channels_temp, S_IRUGO | S_IWUSR, \ | |
985 | show_pwm, set_pwm, SHOW_SET_PWM_AUTO_CHANNELS_TEMP, ix-1) | |
986 | ||
987 | #define SENSOR_ATTR_PWM_FREQ(ix) \ | |
988 | SENSOR_ATTR_2(pwm##ix##_freq, S_IRUGO | S_IWUSR, \ | |
989 | show_pwm, set_pwm, SHOW_SET_PWM_FREQ, ix-1) | |
990 | ||
991 | #define SENSOR_ATTR_PWM_FREQ_RO(ix) \ | |
992 | SENSOR_ATTR_2(pwm##ix##_freq, S_IRUGO, \ | |
993 | show_pwm, NULL, SHOW_SET_PWM_FREQ, ix-1) | |
994 | ||
995 | #define SENSOR_ATTR_PWM_AUTO_POINT_TEMP(ix, ap) \ | |
996 | SENSOR_ATTR_2(pwm##ix##_auto_point##ap##_temp, S_IRUGO | S_IWUSR, \ | |
997 | show_pwm_auto_point_temp, set_pwm_auto_point_temp, \ | |
998 | ap-1, ix-1) | |
999 | ||
1000 | #define SENSOR_ATTR_PWM_AUTO_POINT_TEMP_RO(ix, ap) \ | |
1001 | SENSOR_ATTR_2(pwm##ix##_auto_point##ap##_temp, S_IRUGO, \ | |
1002 | show_pwm_auto_point_temp, NULL, \ | |
1003 | ap-1, ix-1) | |
1004 | ||
1005 | #define SENSOR_ATTR_PWM_AUTO_POINT_PWM(ix, ap) \ | |
1006 | SENSOR_ATTR_2(pwm##ix##_auto_point##ap##_pwm, S_IRUGO | S_IWUSR, \ | |
1007 | show_pwm_auto_point_pwm, set_pwm_auto_point_pwm, \ | |
1008 | ap-1, ix-1) | |
1009 | ||
1010 | #define SENSOR_ATTR_PWM_AUTO_POINT_PWM_RO(ix, ap) \ | |
1011 | SENSOR_ATTR_2(pwm##ix##_auto_point##ap##_pwm, S_IRUGO, \ | |
1012 | show_pwm_auto_point_pwm, NULL, \ | |
1013 | ap-1, ix-1) | |
1014 | ||
1015 | static struct sensor_device_attribute_2 vt1211_sysfs_fan_pwm[] = { | |
1016 | SENSOR_ATTR_FAN(1), | |
1017 | SENSOR_ATTR_FAN(2), | |
1018 | SENSOR_ATTR_PWM(1), | |
1019 | SENSOR_ATTR_PWM(2), | |
1020 | SENSOR_ATTR_PWM_FREQ(1), | |
1021 | SENSOR_ATTR_PWM_FREQ_RO(2), | |
1022 | SENSOR_ATTR_PWM_AUTO_POINT_TEMP(1, 1), | |
1023 | SENSOR_ATTR_PWM_AUTO_POINT_TEMP(1, 2), | |
1024 | SENSOR_ATTR_PWM_AUTO_POINT_TEMP(1, 3), | |
1025 | SENSOR_ATTR_PWM_AUTO_POINT_TEMP(1, 4), | |
1026 | SENSOR_ATTR_PWM_AUTO_POINT_TEMP_RO(2, 1), | |
1027 | SENSOR_ATTR_PWM_AUTO_POINT_TEMP_RO(2, 2), | |
1028 | SENSOR_ATTR_PWM_AUTO_POINT_TEMP_RO(2, 3), | |
1029 | SENSOR_ATTR_PWM_AUTO_POINT_TEMP_RO(2, 4), | |
1030 | SENSOR_ATTR_PWM_AUTO_POINT_PWM_RO(1, 1), | |
1031 | SENSOR_ATTR_PWM_AUTO_POINT_PWM(1, 2), | |
1032 | SENSOR_ATTR_PWM_AUTO_POINT_PWM(1, 3), | |
1033 | SENSOR_ATTR_PWM_AUTO_POINT_PWM_RO(1, 4), | |
1034 | SENSOR_ATTR_PWM_AUTO_POINT_PWM_RO(2, 1), | |
1035 | SENSOR_ATTR_PWM_AUTO_POINT_PWM(2, 2), | |
1036 | SENSOR_ATTR_PWM_AUTO_POINT_PWM(2, 3), | |
1037 | SENSOR_ATTR_PWM_AUTO_POINT_PWM_RO(2, 4), | |
1038 | }; | |
1039 | ||
1040 | static struct device_attribute vt1211_sysfs_misc[] = { | |
1041 | __ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm, set_vrm), | |
1042 | __ATTR(cpu0_vid, S_IRUGO, show_vid, NULL), | |
1043 | __ATTR(name, S_IRUGO, show_name, NULL), | |
1044 | __ATTR(alarms, S_IRUGO, show_alarms, NULL), | |
1045 | }; | |
1046 | ||
1047 | /* --------------------------------------------------------------------- | |
1048 | * Device registration and initialization | |
1049 | * --------------------------------------------------------------------- */ | |
1050 | ||
1051 | static void __devinit vt1211_init_device(struct vt1211_data *data) | |
1052 | { | |
1053 | /* set VRM */ | |
1054 | data->vrm = vid_which_vrm(); | |
1055 | ||
1056 | /* Read (and initialize) UCH config */ | |
1057 | data->uch_config = vt1211_read8(data, VT1211_REG_UCH_CONFIG); | |
1058 | if (uch_config > -1) { | |
1059 | data->uch_config = (data->uch_config & 0x83) | | |
1060 | (uch_config << 2); | |
1061 | vt1211_write8(data, VT1211_REG_UCH_CONFIG, data->uch_config); | |
1062 | } | |
1063 | ||
1064 | /* Initialize the interrupt mode (if request at module load time). | |
1065 | * The VT1211 implements 3 different modes for clearing interrupts: | |
1066 | * 0: Clear INT when status register is read. Regenerate INT as long | |
1067 | * as temp stays above hysteresis limit. | |
1068 | * 1: Clear INT when status register is read. DON'T regenerate INT | |
1069 | * until temp falls below hysteresis limit and exceeds hot limit | |
1070 | * again. | |
1071 | * 2: Clear INT when temp falls below max limit. | |
1072 | * | |
1073 | * The driver only allows to force mode 0 since that's the only one | |
1074 | * that makes sense for 'sensors' */ | |
1075 | if (int_mode == 0) { | |
1076 | vt1211_write8(data, VT1211_REG_TEMP1_CONFIG, 0); | |
1077 | vt1211_write8(data, VT1211_REG_TEMP2_CONFIG, 0); | |
1078 | } | |
1079 | ||
1080 | /* Fill in some hard wired values into our data struct */ | |
1081 | data->pwm_auto_pwm[0][3] = 255; | |
1082 | data->pwm_auto_pwm[1][3] = 255; | |
1083 | } | |
1084 | ||
1085 | static void vt1211_remove_sysfs(struct platform_device *pdev) | |
1086 | { | |
1087 | struct device *dev = &pdev->dev; | |
1088 | int i; | |
1089 | ||
1090 | for (i = 0; i < ARRAY_SIZE(vt1211_sysfs_in_input); i++) { | |
1091 | device_remove_file(dev, | |
1092 | &vt1211_sysfs_in_input[i].dev_attr); | |
1093 | device_remove_file(dev, | |
1094 | &vt1211_sysfs_in_min[i].dev_attr); | |
1095 | device_remove_file(dev, | |
1096 | &vt1211_sysfs_in_max[i].dev_attr); | |
1097 | device_remove_file(dev, | |
1098 | &vt1211_sysfs_in_alarm[i].dev_attr); | |
1099 | } | |
1100 | for (i = 0; i < ARRAY_SIZE(vt1211_sysfs_temp_input); i++) { | |
1101 | device_remove_file(dev, | |
1102 | &vt1211_sysfs_temp_input[i].dev_attr); | |
1103 | device_remove_file(dev, | |
1104 | &vt1211_sysfs_temp_max[i].dev_attr); | |
1105 | device_remove_file(dev, | |
1106 | &vt1211_sysfs_temp_max_hyst[i].dev_attr); | |
1107 | device_remove_file(dev, | |
1108 | &vt1211_sysfs_temp_alarm[i].dev_attr); | |
1109 | } | |
1110 | for (i = 0; i < ARRAY_SIZE(vt1211_sysfs_fan_pwm); i++) { | |
1111 | device_remove_file(dev, | |
1112 | &vt1211_sysfs_fan_pwm[i].dev_attr); | |
1113 | } | |
1114 | for (i = 0; i < ARRAY_SIZE(vt1211_sysfs_misc); i++) { | |
1115 | device_remove_file(dev, &vt1211_sysfs_misc[i]); | |
1116 | } | |
1117 | } | |
1118 | ||
1119 | static int __devinit vt1211_probe(struct platform_device *pdev) | |
1120 | { | |
1121 | struct device *dev = &pdev->dev; | |
1122 | struct vt1211_data *data; | |
1123 | struct resource *res; | |
1124 | int i, err; | |
1125 | ||
1126 | if (!(data = kzalloc(sizeof(struct vt1211_data), GFP_KERNEL))) { | |
1127 | err = -ENOMEM; | |
1128 | dev_err(dev, "Out of memory\n"); | |
1129 | goto EXIT; | |
1130 | } | |
1131 | ||
1132 | res = platform_get_resource(pdev, IORESOURCE_IO, 0); | |
1133 | data->addr = res->start; | |
1134 | data->name = DRVNAME; | |
1135 | mutex_init(&data->update_lock); | |
1136 | ||
1137 | platform_set_drvdata(pdev, data); | |
1138 | ||
1139 | /* Initialize the VT1211 chip */ | |
1140 | vt1211_init_device(data); | |
1141 | ||
1142 | /* Create sysfs interface files */ | |
1143 | for (i = 0; i < ARRAY_SIZE(vt1211_sysfs_in_input); i++) { | |
1144 | if (ISVOLT(i, data->uch_config)) { | |
1145 | if ((err = device_create_file(dev, | |
1146 | &vt1211_sysfs_in_input[i].dev_attr)) || | |
1147 | (err = device_create_file(dev, | |
1148 | &vt1211_sysfs_in_min[i].dev_attr)) || | |
1149 | (err = device_create_file(dev, | |
1150 | &vt1211_sysfs_in_max[i].dev_attr)) || | |
1151 | (err = device_create_file(dev, | |
1152 | &vt1211_sysfs_in_alarm[i].dev_attr))) { | |
1153 | goto EXIT_DEV_REMOVE; | |
1154 | } | |
1155 | } | |
1156 | } | |
1157 | for (i = 0; i < ARRAY_SIZE(vt1211_sysfs_temp_input); i++) { | |
1158 | if (ISTEMP(i, data->uch_config)) { | |
1159 | if ((err = device_create_file(dev, | |
1160 | &vt1211_sysfs_temp_input[i].dev_attr)) || | |
1161 | (err = device_create_file(dev, | |
1162 | &vt1211_sysfs_temp_max[i].dev_attr)) || | |
1163 | (err = device_create_file(dev, | |
1164 | &vt1211_sysfs_temp_max_hyst[i].dev_attr)) || | |
1165 | (err = device_create_file(dev, | |
1166 | &vt1211_sysfs_temp_alarm[i].dev_attr))) { | |
1167 | goto EXIT_DEV_REMOVE; | |
1168 | } | |
1169 | } | |
1170 | } | |
1171 | for (i = 0; i < ARRAY_SIZE(vt1211_sysfs_fan_pwm); i++) { | |
1172 | err = device_create_file(dev, | |
1173 | &vt1211_sysfs_fan_pwm[i].dev_attr); | |
1174 | if (err) { | |
1175 | goto EXIT_DEV_REMOVE; | |
1176 | } | |
1177 | } | |
1178 | for (i = 0; i < ARRAY_SIZE(vt1211_sysfs_misc); i++) { | |
1179 | err = device_create_file(dev, | |
1180 | &vt1211_sysfs_misc[i]); | |
1181 | if (err) { | |
1182 | goto EXIT_DEV_REMOVE; | |
1183 | } | |
1184 | } | |
1185 | ||
1186 | /* Register device */ | |
1187 | data->class_dev = hwmon_device_register(dev); | |
1188 | if (IS_ERR(data->class_dev)) { | |
1189 | err = PTR_ERR(data->class_dev); | |
1190 | dev_err(dev, "Class registration failed (%d)\n", err); | |
1191 | goto EXIT_DEV_REMOVE_SILENT; | |
1192 | } | |
1193 | ||
1194 | return 0; | |
1195 | ||
1196 | EXIT_DEV_REMOVE: | |
1197 | dev_err(dev, "Sysfs interface creation failed (%d)\n", err); | |
1198 | EXIT_DEV_REMOVE_SILENT: | |
1199 | vt1211_remove_sysfs(pdev); | |
1200 | platform_set_drvdata(pdev, NULL); | |
1201 | kfree(data); | |
1202 | EXIT: | |
1203 | return err; | |
1204 | } | |
1205 | ||
1206 | static int __devexit vt1211_remove(struct platform_device *pdev) | |
1207 | { | |
1208 | struct vt1211_data *data = platform_get_drvdata(pdev); | |
1209 | ||
1210 | hwmon_device_unregister(data->class_dev); | |
1211 | vt1211_remove_sysfs(pdev); | |
1212 | platform_set_drvdata(pdev, NULL); | |
1213 | kfree(data); | |
1214 | ||
1215 | return 0; | |
1216 | } | |
1217 | ||
1218 | static struct platform_driver vt1211_driver = { | |
1219 | .driver = { | |
1220 | .owner = THIS_MODULE, | |
1221 | .name = DRVNAME, | |
1222 | }, | |
1223 | .probe = vt1211_probe, | |
1224 | .remove = __devexit_p(vt1211_remove), | |
1225 | }; | |
1226 | ||
1227 | static int __init vt1211_device_add(unsigned short address) | |
1228 | { | |
1229 | struct resource res = { | |
1230 | .start = address, | |
1231 | .end = address + 0x7f, | |
1232 | .flags = IORESOURCE_IO, | |
1233 | }; | |
1234 | int err; | |
1235 | ||
1236 | pdev = platform_device_alloc(DRVNAME, address); | |
1237 | if (!pdev) { | |
1238 | err = -ENOMEM; | |
1239 | printk(KERN_ERR DRVNAME ": Device allocation failed (%d)\n", | |
1240 | err); | |
1241 | goto EXIT; | |
1242 | } | |
1243 | ||
1244 | res.name = pdev->name; | |
1245 | err = platform_device_add_resources(pdev, &res, 1); | |
1246 | if (err) { | |
1247 | printk(KERN_ERR DRVNAME ": Device resource addition failed " | |
1248 | "(%d)\n", err); | |
1249 | goto EXIT_DEV_PUT; | |
1250 | } | |
1251 | ||
1252 | err = platform_device_add(pdev); | |
1253 | if (err) { | |
1254 | printk(KERN_ERR DRVNAME ": Device addition failed (%d)\n", | |
1255 | err); | |
1256 | goto EXIT_DEV_PUT; | |
1257 | } | |
1258 | ||
1259 | return 0; | |
1260 | ||
1261 | EXIT_DEV_PUT: | |
1262 | platform_device_put(pdev); | |
1263 | EXIT: | |
1264 | return err; | |
1265 | } | |
1266 | ||
2219cd81 | 1267 | static int __init vt1211_find(int sio_cip, unsigned short *address) |
ab41319e JH |
1268 | { |
1269 | int err = -ENODEV; | |
1270 | ||
2219cd81 | 1271 | superio_enter(sio_cip); |
ab41319e | 1272 | |
2219cd81 | 1273 | if (superio_inb(sio_cip, SIO_VT1211_DEVID) != SIO_VT1211_ID) { |
ab41319e JH |
1274 | goto EXIT; |
1275 | } | |
1276 | ||
2219cd81 | 1277 | superio_select(sio_cip, SIO_VT1211_LDN_HWMON); |
ab41319e | 1278 | |
2219cd81 | 1279 | if ((superio_inb(sio_cip, SIO_VT1211_ACTIVE) & 1) == 0) { |
ab41319e JH |
1280 | printk(KERN_WARNING DRVNAME ": HW monitor is disabled, " |
1281 | "skipping\n"); | |
1282 | goto EXIT; | |
1283 | } | |
1284 | ||
2219cd81 JH |
1285 | *address = ((superio_inb(sio_cip, SIO_VT1211_BADDR) << 8) | |
1286 | (superio_inb(sio_cip, SIO_VT1211_BADDR + 1))) & 0xff00; | |
ab41319e JH |
1287 | if (*address == 0) { |
1288 | printk(KERN_WARNING DRVNAME ": Base address is not set, " | |
1289 | "skipping\n"); | |
1290 | goto EXIT; | |
1291 | } | |
1292 | ||
1293 | err = 0; | |
1294 | printk(KERN_INFO DRVNAME ": Found VT1211 chip at 0x%04x, " | |
2219cd81 JH |
1295 | "revision %u\n", *address, |
1296 | superio_inb(sio_cip, SIO_VT1211_DEVREV)); | |
ab41319e JH |
1297 | |
1298 | EXIT: | |
2219cd81 | 1299 | superio_exit(sio_cip); |
ab41319e JH |
1300 | return err; |
1301 | } | |
1302 | ||
1303 | static int __init vt1211_init(void) | |
1304 | { | |
1305 | int err; | |
1306 | unsigned short address = 0; | |
1307 | ||
2219cd81 JH |
1308 | if ((err = vt1211_find(SIO_REG_CIP1, &address)) && |
1309 | (err = vt1211_find(SIO_REG_CIP2, &address))) { | |
ab41319e JH |
1310 | goto EXIT; |
1311 | } | |
1312 | ||
1313 | if ((uch_config < -1) || (uch_config > 31)) { | |
1314 | err = -EINVAL; | |
1315 | printk(KERN_WARNING DRVNAME ": Invalid UCH configuration %d. " | |
1316 | "Choose a value between 0 and 31.\n", uch_config); | |
1317 | goto EXIT; | |
1318 | } | |
1319 | ||
1320 | if ((int_mode < -1) || (int_mode > 0)) { | |
1321 | err = -EINVAL; | |
1322 | printk(KERN_WARNING DRVNAME ": Invalid interrupt mode %d. " | |
1323 | "Only mode 0 is supported.\n", int_mode); | |
1324 | goto EXIT; | |
1325 | } | |
1326 | ||
1327 | err = platform_driver_register(&vt1211_driver); | |
1328 | if (err) { | |
1329 | goto EXIT; | |
1330 | } | |
1331 | ||
1332 | /* Sets global pdev as a side effect */ | |
1333 | err = vt1211_device_add(address); | |
1334 | if (err) { | |
1335 | goto EXIT_DRV_UNREGISTER; | |
1336 | } | |
1337 | ||
1338 | return 0; | |
1339 | ||
1340 | EXIT_DRV_UNREGISTER: | |
1341 | platform_driver_unregister(&vt1211_driver); | |
1342 | EXIT: | |
1343 | return err; | |
1344 | } | |
1345 | ||
1346 | static void __exit vt1211_exit(void) | |
1347 | { | |
1348 | platform_device_unregister(pdev); | |
1349 | platform_driver_unregister(&vt1211_driver); | |
1350 | } | |
1351 | ||
1352 | MODULE_AUTHOR("Juerg Haefliger <juergh@gmail.com>"); | |
1353 | MODULE_DESCRIPTION("VT1211 sensors"); | |
1354 | MODULE_LICENSE("GPL"); | |
1355 | ||
1356 | module_init(vt1211_init); | |
1357 | module_exit(vt1211_exit); |