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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> | |
ce7ee4e8 | 34 | #include <linux/ioport.h> |
ab41319e JH |
35 | #include <asm/io.h> |
36 | ||
37 | static int uch_config = -1; | |
38 | module_param(uch_config, int, 0); | |
39 | MODULE_PARM_DESC(uch_config, "Initialize the universal channel configuration"); | |
40 | ||
41 | static int int_mode = -1; | |
42 | module_param(int_mode, int, 0); | |
43 | MODULE_PARM_DESC(int_mode, "Force the temperature interrupt mode"); | |
44 | ||
67b671bc JD |
45 | static unsigned short force_id; |
46 | module_param(force_id, ushort, 0); | |
47 | MODULE_PARM_DESC(force_id, "Override the detected device ID"); | |
48 | ||
ab41319e JH |
49 | static struct platform_device *pdev; |
50 | ||
51 | #define DRVNAME "vt1211" | |
52 | ||
53 | /* --------------------------------------------------------------------- | |
54 | * Registers | |
55 | * | |
56 | * The sensors are defined as follows. | |
57 | * | |
58 | * Sensor Voltage Mode Temp Mode Notes (from the datasheet) | |
59 | * -------- ------------ --------- -------------------------- | |
60 | * Reading 1 temp1 Intel thermal diode | |
61 | * Reading 3 temp2 Internal thermal diode | |
62 | * UCH1/Reading2 in0 temp3 NTC type thermistor | |
63 | * UCH2 in1 temp4 +2.5V | |
64 | * UCH3 in2 temp5 VccP | |
65 | * UCH4 in3 temp6 +5V | |
66 | * UCH5 in4 temp7 +12V | |
67 | * 3.3V in5 Internal VDD (+3.3V) | |
68 | * | |
69 | * --------------------------------------------------------------------- */ | |
70 | ||
71 | /* Voltages (in) numbered 0-5 (ix) */ | |
72 | #define VT1211_REG_IN(ix) (0x21 + (ix)) | |
73 | #define VT1211_REG_IN_MIN(ix) ((ix) == 0 ? 0x3e : 0x2a + 2 * (ix)) | |
74 | #define VT1211_REG_IN_MAX(ix) ((ix) == 0 ? 0x3d : 0x29 + 2 * (ix)) | |
75 | ||
76 | /* Temperatures (temp) numbered 0-6 (ix) */ | |
77 | static u8 regtemp[] = {0x1f, 0x20, 0x21, 0x22, 0x23, 0x24, 0x25}; | |
78 | static u8 regtempmax[] = {0x39, 0x1d, 0x3d, 0x2b, 0x2d, 0x2f, 0x31}; | |
79 | static u8 regtemphyst[] = {0x3a, 0x1e, 0x3e, 0x2c, 0x2e, 0x30, 0x32}; | |
80 | ||
81 | /* Fans numbered 0-1 (ix) */ | |
82 | #define VT1211_REG_FAN(ix) (0x29 + (ix)) | |
83 | #define VT1211_REG_FAN_MIN(ix) (0x3b + (ix)) | |
84 | #define VT1211_REG_FAN_DIV 0x47 | |
85 | ||
86 | /* PWMs numbered 0-1 (ix) */ | |
87 | /* Auto points numbered 0-3 (ap) */ | |
88 | #define VT1211_REG_PWM(ix) (0x60 + (ix)) | |
89 | #define VT1211_REG_PWM_CLK 0x50 | |
90 | #define VT1211_REG_PWM_CTL 0x51 | |
91 | #define VT1211_REG_PWM_AUTO_TEMP(ap) (0x55 - (ap)) | |
92 | #define VT1211_REG_PWM_AUTO_PWM(ix, ap) (0x58 + 2 * (ix) - (ap)) | |
93 | ||
94 | /* Miscellaneous registers */ | |
95 | #define VT1211_REG_CONFIG 0x40 | |
96 | #define VT1211_REG_ALARM1 0x41 | |
97 | #define VT1211_REG_ALARM2 0x42 | |
98 | #define VT1211_REG_VID 0x45 | |
99 | #define VT1211_REG_UCH_CONFIG 0x4a | |
100 | #define VT1211_REG_TEMP1_CONFIG 0x4b | |
101 | #define VT1211_REG_TEMP2_CONFIG 0x4c | |
102 | ||
103 | /* In, temp & fan alarm bits */ | |
104 | static const u8 bitalarmin[] = {11, 0, 1, 3, 8, 2, 9}; | |
105 | static const u8 bitalarmtemp[] = {4, 15, 11, 0, 1, 3, 8}; | |
106 | static const u8 bitalarmfan[] = {6, 7}; | |
107 | ||
108 | /* --------------------------------------------------------------------- | |
109 | * Data structures and manipulation thereof | |
110 | * --------------------------------------------------------------------- */ | |
111 | ||
112 | struct vt1211_data { | |
113 | unsigned short addr; | |
114 | const char *name; | |
1beeffe4 | 115 | struct device *hwmon_dev; |
ab41319e JH |
116 | |
117 | struct mutex update_lock; | |
118 | char valid; /* !=0 if following fields are valid */ | |
119 | unsigned long last_updated; /* In jiffies */ | |
120 | ||
121 | /* Register values */ | |
122 | u8 in[6]; | |
123 | u8 in_max[6]; | |
124 | u8 in_min[6]; | |
125 | u8 temp[7]; | |
126 | u8 temp_max[7]; | |
127 | u8 temp_hyst[7]; | |
128 | u8 fan[2]; | |
129 | u8 fan_min[2]; | |
130 | u8 fan_div[2]; | |
131 | u8 fan_ctl; | |
132 | u8 pwm[2]; | |
133 | u8 pwm_ctl[2]; | |
134 | u8 pwm_clk; | |
135 | u8 pwm_auto_temp[4]; | |
136 | u8 pwm_auto_pwm[2][4]; | |
137 | u8 vid; /* Read once at init time */ | |
138 | u8 vrm; | |
139 | u8 uch_config; /* Read once at init time */ | |
140 | u16 alarms; | |
141 | }; | |
142 | ||
143 | /* ix = [0-5] */ | |
144 | #define ISVOLT(ix, uch_config) ((ix) > 4 ? 1 : \ | |
145 | !(((uch_config) >> ((ix) + 2)) & 1)) | |
146 | ||
147 | /* ix = [0-6] */ | |
148 | #define ISTEMP(ix, uch_config) ((ix) < 2 ? 1 : \ | |
149 | ((uch_config) >> (ix)) & 1) | |
150 | ||
151 | /* in5 (ix = 5) is special. It's the internal 3.3V so it's scaled in the | |
152 | driver according to the VT1211 BIOS porting guide */ | |
153 | #define IN_FROM_REG(ix, reg) ((reg) < 3 ? 0 : (ix) == 5 ? \ | |
154 | (((reg) - 3) * 15882 + 479) / 958 : \ | |
155 | (((reg) - 3) * 10000 + 479) / 958) | |
156 | #define IN_TO_REG(ix, val) (SENSORS_LIMIT((ix) == 5 ? \ | |
157 | ((val) * 958 + 7941) / 15882 + 3 : \ | |
158 | ((val) * 958 + 5000) / 10000 + 3, 0, 255)) | |
159 | ||
160 | /* temp1 (ix = 0) is an intel thermal diode which is scaled in user space. | |
161 | temp2 (ix = 1) is the internal temp diode so it's scaled in the driver | |
162 | according to some measurements that I took on an EPIA M10000. | |
163 | temp3-7 are thermistor based so the driver returns the voltage measured at | |
164 | the pin (range 0V - 2.2V). */ | |
165 | #define TEMP_FROM_REG(ix, reg) ((ix) == 0 ? (reg) * 1000 : \ | |
166 | (ix) == 1 ? (reg) < 51 ? 0 : \ | |
167 | ((reg) - 51) * 1000 : \ | |
168 | ((253 - (reg)) * 2200 + 105) / 210) | |
169 | #define TEMP_TO_REG(ix, val) SENSORS_LIMIT( \ | |
170 | ((ix) == 0 ? ((val) + 500) / 1000 : \ | |
171 | (ix) == 1 ? ((val) + 500) / 1000 + 51 : \ | |
172 | 253 - ((val) * 210 + 1100) / 2200), 0, 255) | |
173 | ||
174 | #define DIV_FROM_REG(reg) (1 << (reg)) | |
175 | ||
176 | #define RPM_FROM_REG(reg, div) (((reg) == 0) || ((reg) == 255) ? 0 : \ | |
177 | 1310720 / (reg) / DIV_FROM_REG(div)) | |
178 | #define RPM_TO_REG(val, div) ((val) == 0 ? 255 : \ | |
179 | SENSORS_LIMIT((1310720 / (val) / \ | |
180 | DIV_FROM_REG(div)), 1, 254)) | |
181 | ||
182 | /* --------------------------------------------------------------------- | |
183 | * Super-I/O constants and functions | |
184 | * --------------------------------------------------------------------- */ | |
185 | ||
2219cd81 JH |
186 | /* Configuration index port registers |
187 | * The vt1211 can live at 2 different addresses so we need to probe both */ | |
188 | #define SIO_REG_CIP1 0x2e | |
189 | #define SIO_REG_CIP2 0x4e | |
ab41319e JH |
190 | |
191 | /* Configuration registers */ | |
192 | #define SIO_VT1211_LDN 0x07 /* logical device number */ | |
193 | #define SIO_VT1211_DEVID 0x20 /* device ID */ | |
194 | #define SIO_VT1211_DEVREV 0x21 /* device revision */ | |
195 | #define SIO_VT1211_ACTIVE 0x30 /* HW monitor active */ | |
196 | #define SIO_VT1211_BADDR 0x60 /* base I/O address */ | |
197 | #define SIO_VT1211_ID 0x3c /* VT1211 device ID */ | |
198 | ||
199 | /* VT1211 logical device numbers */ | |
200 | #define SIO_VT1211_LDN_HWMON 0x0b /* HW monitor */ | |
201 | ||
2219cd81 | 202 | static inline void superio_outb(int sio_cip, int reg, int val) |
ab41319e | 203 | { |
2219cd81 JH |
204 | outb(reg, sio_cip); |
205 | outb(val, sio_cip + 1); | |
ab41319e JH |
206 | } |
207 | ||
2219cd81 | 208 | static inline int superio_inb(int sio_cip, int reg) |
ab41319e | 209 | { |
2219cd81 JH |
210 | outb(reg, sio_cip); |
211 | return inb(sio_cip + 1); | |
ab41319e JH |
212 | } |
213 | ||
2219cd81 | 214 | static inline void superio_select(int sio_cip, int ldn) |
ab41319e | 215 | { |
2219cd81 JH |
216 | outb(SIO_VT1211_LDN, sio_cip); |
217 | outb(ldn, sio_cip + 1); | |
ab41319e JH |
218 | } |
219 | ||
2219cd81 | 220 | static inline void superio_enter(int sio_cip) |
ab41319e | 221 | { |
2219cd81 JH |
222 | outb(0x87, sio_cip); |
223 | outb(0x87, sio_cip); | |
ab41319e JH |
224 | } |
225 | ||
2219cd81 | 226 | static inline void superio_exit(int sio_cip) |
ab41319e | 227 | { |
2219cd81 | 228 | outb(0xaa, sio_cip); |
ab41319e JH |
229 | } |
230 | ||
231 | /* --------------------------------------------------------------------- | |
232 | * Device I/O access | |
233 | * --------------------------------------------------------------------- */ | |
234 | ||
235 | static inline u8 vt1211_read8(struct vt1211_data *data, u8 reg) | |
236 | { | |
237 | return inb(data->addr + reg); | |
238 | } | |
239 | ||
240 | static inline void vt1211_write8(struct vt1211_data *data, u8 reg, u8 val) | |
241 | { | |
242 | outb(val, data->addr + reg); | |
243 | } | |
244 | ||
245 | static struct vt1211_data *vt1211_update_device(struct device *dev) | |
246 | { | |
247 | struct vt1211_data *data = dev_get_drvdata(dev); | |
248 | int ix, val; | |
249 | ||
250 | mutex_lock(&data->update_lock); | |
251 | ||
252 | /* registers cache is refreshed after 1 second */ | |
253 | if (time_after(jiffies, data->last_updated + HZ) || !data->valid) { | |
254 | /* read VID */ | |
255 | data->vid = vt1211_read8(data, VT1211_REG_VID) & 0x1f; | |
256 | ||
257 | /* voltage (in) registers */ | |
258 | for (ix = 0; ix < ARRAY_SIZE(data->in); ix++) { | |
259 | if (ISVOLT(ix, data->uch_config)) { | |
260 | data->in[ix] = vt1211_read8(data, | |
261 | VT1211_REG_IN(ix)); | |
262 | data->in_min[ix] = vt1211_read8(data, | |
263 | VT1211_REG_IN_MIN(ix)); | |
264 | data->in_max[ix] = vt1211_read8(data, | |
265 | VT1211_REG_IN_MAX(ix)); | |
266 | } | |
267 | } | |
268 | ||
269 | /* temp registers */ | |
270 | for (ix = 0; ix < ARRAY_SIZE(data->temp); ix++) { | |
271 | if (ISTEMP(ix, data->uch_config)) { | |
272 | data->temp[ix] = vt1211_read8(data, | |
273 | regtemp[ix]); | |
274 | data->temp_max[ix] = vt1211_read8(data, | |
275 | regtempmax[ix]); | |
276 | data->temp_hyst[ix] = vt1211_read8(data, | |
277 | regtemphyst[ix]); | |
278 | } | |
279 | } | |
280 | ||
281 | /* fan & pwm registers */ | |
282 | for (ix = 0; ix < ARRAY_SIZE(data->fan); ix++) { | |
283 | data->fan[ix] = vt1211_read8(data, | |
284 | VT1211_REG_FAN(ix)); | |
285 | data->fan_min[ix] = vt1211_read8(data, | |
286 | VT1211_REG_FAN_MIN(ix)); | |
287 | data->pwm[ix] = vt1211_read8(data, | |
288 | VT1211_REG_PWM(ix)); | |
289 | } | |
290 | val = vt1211_read8(data, VT1211_REG_FAN_DIV); | |
291 | data->fan_div[0] = (val >> 4) & 3; | |
292 | data->fan_div[1] = (val >> 6) & 3; | |
293 | data->fan_ctl = val & 0xf; | |
294 | ||
295 | val = vt1211_read8(data, VT1211_REG_PWM_CTL); | |
296 | data->pwm_ctl[0] = val & 0xf; | |
297 | data->pwm_ctl[1] = (val >> 4) & 0xf; | |
298 | ||
299 | data->pwm_clk = vt1211_read8(data, VT1211_REG_PWM_CLK); | |
300 | ||
301 | /* pwm & temp auto point registers */ | |
302 | data->pwm_auto_pwm[0][1] = vt1211_read8(data, | |
303 | VT1211_REG_PWM_AUTO_PWM(0, 1)); | |
304 | data->pwm_auto_pwm[0][2] = vt1211_read8(data, | |
305 | VT1211_REG_PWM_AUTO_PWM(0, 2)); | |
306 | data->pwm_auto_pwm[1][1] = vt1211_read8(data, | |
307 | VT1211_REG_PWM_AUTO_PWM(1, 1)); | |
308 | data->pwm_auto_pwm[1][2] = vt1211_read8(data, | |
309 | VT1211_REG_PWM_AUTO_PWM(1, 2)); | |
310 | for (ix = 0; ix < ARRAY_SIZE(data->pwm_auto_temp); ix++) { | |
311 | data->pwm_auto_temp[ix] = vt1211_read8(data, | |
312 | VT1211_REG_PWM_AUTO_TEMP(ix)); | |
313 | } | |
314 | ||
315 | /* alarm registers */ | |
316 | data->alarms = (vt1211_read8(data, VT1211_REG_ALARM2) << 8) | | |
317 | vt1211_read8(data, VT1211_REG_ALARM1); | |
318 | ||
319 | data->last_updated = jiffies; | |
320 | data->valid = 1; | |
321 | } | |
322 | ||
323 | mutex_unlock(&data->update_lock); | |
324 | ||
325 | return data; | |
326 | } | |
327 | ||
328 | /* --------------------------------------------------------------------- | |
329 | * Voltage sysfs interfaces | |
330 | * ix = [0-5] | |
331 | * --------------------------------------------------------------------- */ | |
332 | ||
333 | #define SHOW_IN_INPUT 0 | |
334 | #define SHOW_SET_IN_MIN 1 | |
335 | #define SHOW_SET_IN_MAX 2 | |
336 | #define SHOW_IN_ALARM 3 | |
337 | ||
338 | static ssize_t show_in(struct device *dev, struct device_attribute *attr, | |
339 | char *buf) | |
340 | { | |
341 | struct vt1211_data *data = vt1211_update_device(dev); | |
342 | struct sensor_device_attribute_2 *sensor_attr_2 = | |
343 | to_sensor_dev_attr_2(attr); | |
344 | int ix = sensor_attr_2->index; | |
345 | int fn = sensor_attr_2->nr; | |
346 | int res; | |
347 | ||
348 | switch (fn) { | |
349 | case SHOW_IN_INPUT: | |
350 | res = IN_FROM_REG(ix, data->in[ix]); | |
351 | break; | |
352 | case SHOW_SET_IN_MIN: | |
353 | res = IN_FROM_REG(ix, data->in_min[ix]); | |
354 | break; | |
355 | case SHOW_SET_IN_MAX: | |
356 | res = IN_FROM_REG(ix, data->in_max[ix]); | |
357 | break; | |
358 | case SHOW_IN_ALARM: | |
359 | res = (data->alarms >> bitalarmin[ix]) & 1; | |
360 | break; | |
361 | default: | |
362 | res = 0; | |
363 | dev_dbg(dev, "Unknown attr fetch (%d)\n", fn); | |
364 | } | |
365 | ||
366 | return sprintf(buf, "%d\n", res); | |
367 | } | |
368 | ||
369 | static ssize_t set_in(struct device *dev, struct device_attribute *attr, | |
370 | const char *buf, size_t count) | |
371 | { | |
372 | struct vt1211_data *data = dev_get_drvdata(dev); | |
373 | struct sensor_device_attribute_2 *sensor_attr_2 = | |
374 | to_sensor_dev_attr_2(attr); | |
375 | int ix = sensor_attr_2->index; | |
376 | int fn = sensor_attr_2->nr; | |
377 | long val = simple_strtol(buf, NULL, 10); | |
378 | ||
379 | mutex_lock(&data->update_lock); | |
380 | switch (fn) { | |
381 | case SHOW_SET_IN_MIN: | |
382 | data->in_min[ix] = IN_TO_REG(ix, val); | |
383 | vt1211_write8(data, VT1211_REG_IN_MIN(ix), data->in_min[ix]); | |
384 | break; | |
385 | case SHOW_SET_IN_MAX: | |
386 | data->in_max[ix] = IN_TO_REG(ix, val); | |
387 | vt1211_write8(data, VT1211_REG_IN_MAX(ix), data->in_max[ix]); | |
388 | break; | |
389 | default: | |
390 | dev_dbg(dev, "Unknown attr fetch (%d)\n", fn); | |
391 | } | |
392 | mutex_unlock(&data->update_lock); | |
393 | ||
394 | return count; | |
395 | } | |
396 | ||
397 | /* --------------------------------------------------------------------- | |
398 | * Temperature sysfs interfaces | |
399 | * ix = [0-6] | |
400 | * --------------------------------------------------------------------- */ | |
401 | ||
402 | #define SHOW_TEMP_INPUT 0 | |
403 | #define SHOW_SET_TEMP_MAX 1 | |
404 | #define SHOW_SET_TEMP_MAX_HYST 2 | |
405 | #define SHOW_TEMP_ALARM 3 | |
406 | ||
407 | static ssize_t show_temp(struct device *dev, struct device_attribute *attr, | |
408 | char *buf) | |
409 | { | |
410 | struct vt1211_data *data = vt1211_update_device(dev); | |
411 | struct sensor_device_attribute_2 *sensor_attr_2 = | |
412 | to_sensor_dev_attr_2(attr); | |
413 | int ix = sensor_attr_2->index; | |
414 | int fn = sensor_attr_2->nr; | |
415 | int res; | |
416 | ||
417 | switch (fn) { | |
418 | case SHOW_TEMP_INPUT: | |
419 | res = TEMP_FROM_REG(ix, data->temp[ix]); | |
420 | break; | |
421 | case SHOW_SET_TEMP_MAX: | |
422 | res = TEMP_FROM_REG(ix, data->temp_max[ix]); | |
423 | break; | |
424 | case SHOW_SET_TEMP_MAX_HYST: | |
425 | res = TEMP_FROM_REG(ix, data->temp_hyst[ix]); | |
426 | break; | |
427 | case SHOW_TEMP_ALARM: | |
428 | res = (data->alarms >> bitalarmtemp[ix]) & 1; | |
429 | break; | |
430 | default: | |
431 | res = 0; | |
432 | dev_dbg(dev, "Unknown attr fetch (%d)\n", fn); | |
433 | } | |
434 | ||
435 | return sprintf(buf, "%d\n", res); | |
436 | } | |
437 | ||
438 | static ssize_t set_temp(struct device *dev, struct device_attribute *attr, | |
439 | const char *buf, size_t count) | |
440 | { | |
441 | struct vt1211_data *data = dev_get_drvdata(dev); | |
442 | struct sensor_device_attribute_2 *sensor_attr_2 = | |
443 | to_sensor_dev_attr_2(attr); | |
444 | int ix = sensor_attr_2->index; | |
445 | int fn = sensor_attr_2->nr; | |
446 | long val = simple_strtol(buf, NULL, 10); | |
447 | ||
448 | mutex_lock(&data->update_lock); | |
449 | switch (fn) { | |
450 | case SHOW_SET_TEMP_MAX: | |
451 | data->temp_max[ix] = TEMP_TO_REG(ix, val); | |
452 | vt1211_write8(data, regtempmax[ix], | |
453 | data->temp_max[ix]); | |
454 | break; | |
455 | case SHOW_SET_TEMP_MAX_HYST: | |
456 | data->temp_hyst[ix] = TEMP_TO_REG(ix, val); | |
457 | vt1211_write8(data, regtemphyst[ix], | |
458 | data->temp_hyst[ix]); | |
459 | break; | |
460 | default: | |
461 | dev_dbg(dev, "Unknown attr fetch (%d)\n", fn); | |
462 | } | |
463 | mutex_unlock(&data->update_lock); | |
464 | ||
465 | return count; | |
466 | } | |
467 | ||
468 | /* --------------------------------------------------------------------- | |
469 | * Fan sysfs interfaces | |
470 | * ix = [0-1] | |
471 | * --------------------------------------------------------------------- */ | |
472 | ||
473 | #define SHOW_FAN_INPUT 0 | |
474 | #define SHOW_SET_FAN_MIN 1 | |
475 | #define SHOW_SET_FAN_DIV 2 | |
476 | #define SHOW_FAN_ALARM 3 | |
477 | ||
478 | static ssize_t show_fan(struct device *dev, struct device_attribute *attr, | |
479 | char *buf) | |
480 | { | |
481 | struct vt1211_data *data = vt1211_update_device(dev); | |
482 | struct sensor_device_attribute_2 *sensor_attr_2 = | |
483 | to_sensor_dev_attr_2(attr); | |
484 | int ix = sensor_attr_2->index; | |
485 | int fn = sensor_attr_2->nr; | |
486 | int res; | |
487 | ||
488 | switch (fn) { | |
489 | case SHOW_FAN_INPUT: | |
490 | res = RPM_FROM_REG(data->fan[ix], data->fan_div[ix]); | |
491 | break; | |
492 | case SHOW_SET_FAN_MIN: | |
493 | res = RPM_FROM_REG(data->fan_min[ix], data->fan_div[ix]); | |
494 | break; | |
495 | case SHOW_SET_FAN_DIV: | |
496 | res = DIV_FROM_REG(data->fan_div[ix]); | |
497 | break; | |
498 | case SHOW_FAN_ALARM: | |
499 | res = (data->alarms >> bitalarmfan[ix]) & 1; | |
500 | break; | |
501 | default: | |
502 | res = 0; | |
503 | dev_dbg(dev, "Unknown attr fetch (%d)\n", fn); | |
504 | } | |
505 | ||
506 | return sprintf(buf, "%d\n", res); | |
507 | } | |
508 | ||
509 | static ssize_t set_fan(struct device *dev, struct device_attribute *attr, | |
510 | const char *buf, size_t count) | |
511 | { | |
512 | struct vt1211_data *data = dev_get_drvdata(dev); | |
513 | struct sensor_device_attribute_2 *sensor_attr_2 = | |
514 | to_sensor_dev_attr_2(attr); | |
515 | int ix = sensor_attr_2->index; | |
516 | int fn = sensor_attr_2->nr; | |
517 | long val = simple_strtol(buf, NULL, 10); | |
518 | int reg; | |
519 | ||
520 | mutex_lock(&data->update_lock); | |
521 | ||
522 | /* sync the data cache */ | |
523 | reg = vt1211_read8(data, VT1211_REG_FAN_DIV); | |
524 | data->fan_div[0] = (reg >> 4) & 3; | |
525 | data->fan_div[1] = (reg >> 6) & 3; | |
526 | data->fan_ctl = reg & 0xf; | |
527 | ||
528 | switch (fn) { | |
529 | case SHOW_SET_FAN_MIN: | |
530 | data->fan_min[ix] = RPM_TO_REG(val, data->fan_div[ix]); | |
531 | vt1211_write8(data, VT1211_REG_FAN_MIN(ix), | |
532 | data->fan_min[ix]); | |
533 | break; | |
534 | case SHOW_SET_FAN_DIV: | |
535 | switch (val) { | |
536 | case 1: data->fan_div[ix] = 0; break; | |
537 | case 2: data->fan_div[ix] = 1; break; | |
538 | case 4: data->fan_div[ix] = 2; break; | |
539 | case 8: data->fan_div[ix] = 3; break; | |
540 | default: | |
541 | count = -EINVAL; | |
542 | dev_warn(dev, "fan div value %ld not " | |
543 | "supported. Choose one of 1, 2, " | |
544 | "4, or 8.\n", val); | |
545 | goto EXIT; | |
546 | } | |
547 | vt1211_write8(data, VT1211_REG_FAN_DIV, | |
548 | ((data->fan_div[1] << 6) | | |
549 | (data->fan_div[0] << 4) | | |
550 | data->fan_ctl)); | |
551 | break; | |
552 | default: | |
553 | dev_dbg(dev, "Unknown attr fetch (%d)\n", fn); | |
554 | } | |
555 | ||
556 | EXIT: | |
557 | mutex_unlock(&data->update_lock); | |
558 | return count; | |
559 | } | |
560 | ||
561 | /* --------------------------------------------------------------------- | |
562 | * PWM sysfs interfaces | |
563 | * ix = [0-1] | |
564 | * --------------------------------------------------------------------- */ | |
565 | ||
566 | #define SHOW_PWM 0 | |
567 | #define SHOW_SET_PWM_ENABLE 1 | |
568 | #define SHOW_SET_PWM_FREQ 2 | |
569 | #define SHOW_SET_PWM_AUTO_CHANNELS_TEMP 3 | |
570 | ||
571 | static ssize_t show_pwm(struct device *dev, struct device_attribute *attr, | |
572 | char *buf) | |
573 | { | |
574 | struct vt1211_data *data = vt1211_update_device(dev); | |
575 | struct sensor_device_attribute_2 *sensor_attr_2 = | |
576 | to_sensor_dev_attr_2(attr); | |
577 | int ix = sensor_attr_2->index; | |
578 | int fn = sensor_attr_2->nr; | |
579 | int res; | |
580 | ||
581 | switch (fn) { | |
582 | case SHOW_PWM: | |
583 | res = data->pwm[ix]; | |
584 | break; | |
585 | case SHOW_SET_PWM_ENABLE: | |
586 | res = ((data->pwm_ctl[ix] >> 3) & 1) ? 2 : 0; | |
587 | break; | |
588 | case SHOW_SET_PWM_FREQ: | |
589 | res = 90000 >> (data->pwm_clk & 7); | |
590 | break; | |
591 | case SHOW_SET_PWM_AUTO_CHANNELS_TEMP: | |
592 | res = (data->pwm_ctl[ix] & 7) + 1; | |
593 | break; | |
594 | default: | |
595 | res = 0; | |
596 | dev_dbg(dev, "Unknown attr fetch (%d)\n", fn); | |
597 | } | |
598 | ||
599 | return sprintf(buf, "%d\n", res); | |
600 | } | |
601 | ||
602 | static ssize_t set_pwm(struct device *dev, struct device_attribute *attr, | |
603 | const char *buf, size_t count) | |
604 | { | |
605 | struct vt1211_data *data = dev_get_drvdata(dev); | |
606 | struct sensor_device_attribute_2 *sensor_attr_2 = | |
607 | to_sensor_dev_attr_2(attr); | |
608 | int ix = sensor_attr_2->index; | |
609 | int fn = sensor_attr_2->nr; | |
610 | long val = simple_strtol(buf, NULL, 10); | |
611 | int tmp, reg; | |
612 | ||
613 | mutex_lock(&data->update_lock); | |
614 | ||
615 | switch (fn) { | |
616 | case SHOW_SET_PWM_ENABLE: | |
617 | /* sync the data cache */ | |
618 | reg = vt1211_read8(data, VT1211_REG_FAN_DIV); | |
619 | data->fan_div[0] = (reg >> 4) & 3; | |
620 | data->fan_div[1] = (reg >> 6) & 3; | |
621 | data->fan_ctl = reg & 0xf; | |
622 | reg = vt1211_read8(data, VT1211_REG_PWM_CTL); | |
623 | data->pwm_ctl[0] = reg & 0xf; | |
624 | data->pwm_ctl[1] = (reg >> 4) & 0xf; | |
625 | switch (val) { | |
626 | case 0: | |
627 | data->pwm_ctl[ix] &= 7; | |
628 | /* disable SmartGuardian if both PWM outputs are | |
629 | * disabled */ | |
630 | if ((data->pwm_ctl[ix ^ 1] & 1) == 0) { | |
631 | data->fan_ctl &= 0xe; | |
632 | } | |
633 | break; | |
634 | case 2: | |
635 | data->pwm_ctl[ix] |= 8; | |
636 | data->fan_ctl |= 1; | |
637 | break; | |
638 | default: | |
639 | count = -EINVAL; | |
640 | dev_warn(dev, "pwm mode %ld not supported. " | |
641 | "Choose one of 0 or 2.\n", val); | |
642 | goto EXIT; | |
643 | } | |
644 | vt1211_write8(data, VT1211_REG_PWM_CTL, | |
645 | ((data->pwm_ctl[1] << 4) | | |
646 | data->pwm_ctl[0])); | |
647 | vt1211_write8(data, VT1211_REG_FAN_DIV, | |
648 | ((data->fan_div[1] << 6) | | |
649 | (data->fan_div[0] << 4) | | |
650 | data->fan_ctl)); | |
651 | break; | |
652 | case SHOW_SET_PWM_FREQ: | |
653 | val = 135000 / SENSORS_LIMIT(val, 135000 >> 7, 135000); | |
654 | /* calculate tmp = log2(val) */ | |
655 | tmp = 0; | |
656 | for (val >>= 1; val > 0; val >>= 1) { | |
657 | tmp++; | |
658 | } | |
659 | /* sync the data cache */ | |
660 | reg = vt1211_read8(data, VT1211_REG_PWM_CLK); | |
661 | data->pwm_clk = (reg & 0xf8) | tmp; | |
662 | vt1211_write8(data, VT1211_REG_PWM_CLK, data->pwm_clk); | |
663 | break; | |
664 | case SHOW_SET_PWM_AUTO_CHANNELS_TEMP: | |
665 | if ((val < 1) || (val > 7)) { | |
666 | count = -EINVAL; | |
667 | dev_warn(dev, "temp channel %ld not supported. " | |
668 | "Choose a value between 1 and 7.\n", val); | |
669 | goto EXIT; | |
670 | } | |
671 | if (!ISTEMP(val - 1, data->uch_config)) { | |
672 | count = -EINVAL; | |
673 | dev_warn(dev, "temp channel %ld is not available.\n", | |
674 | val); | |
675 | goto EXIT; | |
676 | } | |
677 | /* sync the data cache */ | |
678 | reg = vt1211_read8(data, VT1211_REG_PWM_CTL); | |
679 | data->pwm_ctl[0] = reg & 0xf; | |
680 | data->pwm_ctl[1] = (reg >> 4) & 0xf; | |
681 | data->pwm_ctl[ix] = (data->pwm_ctl[ix] & 8) | (val - 1); | |
682 | vt1211_write8(data, VT1211_REG_PWM_CTL, | |
683 | ((data->pwm_ctl[1] << 4) | data->pwm_ctl[0])); | |
684 | break; | |
685 | default: | |
686 | dev_dbg(dev, "Unknown attr fetch (%d)\n", fn); | |
687 | } | |
688 | ||
689 | EXIT: | |
690 | mutex_unlock(&data->update_lock); | |
691 | return count; | |
692 | } | |
693 | ||
694 | /* --------------------------------------------------------------------- | |
695 | * PWM auto point definitions | |
696 | * ix = [0-1] | |
697 | * ap = [0-3] | |
698 | * --------------------------------------------------------------------- */ | |
699 | ||
700 | /* | |
701 | * pwm[ix+1]_auto_point[ap+1]_temp mapping table: | |
702 | * Note that there is only a single set of temp auto points that controls both | |
703 | * PWM controllers. We still create 2 sets of sysfs files to make it look | |
704 | * more consistent even though they map to the same registers. | |
705 | * | |
706 | * ix ap : description | |
707 | * ------------------- | |
708 | * 0 0 : pwm1/2 off temperature (pwm_auto_temp[0]) | |
709 | * 0 1 : pwm1/2 low speed temperature (pwm_auto_temp[1]) | |
710 | * 0 2 : pwm1/2 high speed temperature (pwm_auto_temp[2]) | |
711 | * 0 3 : pwm1/2 full speed temperature (pwm_auto_temp[3]) | |
712 | * 1 0 : pwm1/2 off temperature (pwm_auto_temp[0]) | |
713 | * 1 1 : pwm1/2 low speed temperature (pwm_auto_temp[1]) | |
714 | * 1 2 : pwm1/2 high speed temperature (pwm_auto_temp[2]) | |
715 | * 1 3 : pwm1/2 full speed temperature (pwm_auto_temp[3]) | |
716 | */ | |
717 | ||
718 | static ssize_t show_pwm_auto_point_temp(struct device *dev, | |
719 | struct device_attribute *attr, | |
720 | char *buf) | |
721 | { | |
722 | struct vt1211_data *data = vt1211_update_device(dev); | |
723 | struct sensor_device_attribute_2 *sensor_attr_2 = | |
724 | to_sensor_dev_attr_2(attr); | |
725 | int ix = sensor_attr_2->index; | |
726 | int ap = sensor_attr_2->nr; | |
727 | ||
728 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->pwm_ctl[ix] & 7, | |
729 | data->pwm_auto_temp[ap])); | |
730 | } | |
731 | ||
732 | static ssize_t set_pwm_auto_point_temp(struct device *dev, | |
733 | struct device_attribute *attr, | |
734 | const char *buf, size_t count) | |
735 | { | |
736 | struct vt1211_data *data = dev_get_drvdata(dev); | |
737 | struct sensor_device_attribute_2 *sensor_attr_2 = | |
738 | to_sensor_dev_attr_2(attr); | |
739 | int ix = sensor_attr_2->index; | |
740 | int ap = sensor_attr_2->nr; | |
741 | long val = simple_strtol(buf, NULL, 10); | |
742 | int reg; | |
743 | ||
744 | mutex_lock(&data->update_lock); | |
745 | ||
746 | /* sync the data cache */ | |
747 | reg = vt1211_read8(data, VT1211_REG_PWM_CTL); | |
748 | data->pwm_ctl[0] = reg & 0xf; | |
749 | data->pwm_ctl[1] = (reg >> 4) & 0xf; | |
750 | ||
751 | data->pwm_auto_temp[ap] = TEMP_TO_REG(data->pwm_ctl[ix] & 7, val); | |
752 | vt1211_write8(data, VT1211_REG_PWM_AUTO_TEMP(ap), | |
753 | data->pwm_auto_temp[ap]); | |
754 | mutex_unlock(&data->update_lock); | |
755 | ||
756 | return count; | |
757 | } | |
758 | ||
759 | /* | |
760 | * pwm[ix+1]_auto_point[ap+1]_pwm mapping table: | |
761 | * Note that the PWM auto points 0 & 3 are hard-wired in the VT1211 and can't | |
762 | * be changed. | |
763 | * | |
764 | * ix ap : description | |
765 | * ------------------- | |
766 | * 0 0 : pwm1 off (pwm_auto_pwm[0][0], hard-wired to 0) | |
767 | * 0 1 : pwm1 low speed duty cycle (pwm_auto_pwm[0][1]) | |
768 | * 0 2 : pwm1 high speed duty cycle (pwm_auto_pwm[0][2]) | |
769 | * 0 3 : pwm1 full speed (pwm_auto_pwm[0][3], hard-wired to 255) | |
770 | * 1 0 : pwm2 off (pwm_auto_pwm[1][0], hard-wired to 0) | |
771 | * 1 1 : pwm2 low speed duty cycle (pwm_auto_pwm[1][1]) | |
772 | * 1 2 : pwm2 high speed duty cycle (pwm_auto_pwm[1][2]) | |
773 | * 1 3 : pwm2 full speed (pwm_auto_pwm[1][3], hard-wired to 255) | |
774 | */ | |
775 | ||
776 | static ssize_t show_pwm_auto_point_pwm(struct device *dev, | |
777 | struct device_attribute *attr, | |
778 | char *buf) | |
779 | { | |
780 | struct vt1211_data *data = vt1211_update_device(dev); | |
781 | struct sensor_device_attribute_2 *sensor_attr_2 = | |
782 | to_sensor_dev_attr_2(attr); | |
783 | int ix = sensor_attr_2->index; | |
784 | int ap = sensor_attr_2->nr; | |
785 | ||
786 | return sprintf(buf, "%d\n", data->pwm_auto_pwm[ix][ap]); | |
787 | } | |
788 | ||
789 | static ssize_t set_pwm_auto_point_pwm(struct device *dev, | |
790 | struct device_attribute *attr, | |
791 | const char *buf, size_t count) | |
792 | { | |
793 | struct vt1211_data *data = dev_get_drvdata(dev); | |
794 | struct sensor_device_attribute_2 *sensor_attr_2 = | |
795 | to_sensor_dev_attr_2(attr); | |
796 | int ix = sensor_attr_2->index; | |
797 | int ap = sensor_attr_2->nr; | |
798 | long val = simple_strtol(buf, NULL, 10); | |
799 | ||
800 | if ((val < 0) || (val > 255)) { | |
801 | dev_err(dev, "pwm value %ld is out of range. " | |
898eb71c | 802 | "Choose a value between 0 and 255.\n" , val); |
ab41319e JH |
803 | return -EINVAL; |
804 | } | |
805 | ||
806 | mutex_lock(&data->update_lock); | |
807 | data->pwm_auto_pwm[ix][ap] = val; | |
808 | vt1211_write8(data, VT1211_REG_PWM_AUTO_PWM(ix, ap), | |
809 | data->pwm_auto_pwm[ix][ap]); | |
810 | mutex_unlock(&data->update_lock); | |
811 | ||
812 | return count; | |
813 | } | |
814 | ||
815 | /* --------------------------------------------------------------------- | |
816 | * Miscellaneous sysfs interfaces (VRM, VID, name, and (legacy) alarms) | |
817 | * --------------------------------------------------------------------- */ | |
818 | ||
819 | static ssize_t show_vrm(struct device *dev, struct device_attribute *attr, | |
820 | char *buf) | |
821 | { | |
822 | struct vt1211_data *data = dev_get_drvdata(dev); | |
823 | ||
824 | return sprintf(buf, "%d\n", data->vrm); | |
825 | } | |
826 | ||
827 | static ssize_t set_vrm(struct device *dev, struct device_attribute *attr, | |
828 | const char *buf, size_t count) | |
829 | { | |
830 | struct vt1211_data *data = dev_get_drvdata(dev); | |
831 | long val = simple_strtol(buf, NULL, 10); | |
832 | ||
833 | data->vrm = val; | |
834 | ||
835 | return count; | |
836 | } | |
837 | ||
838 | static ssize_t show_vid(struct device *dev, struct device_attribute *attr, | |
839 | char *buf) | |
840 | { | |
841 | struct vt1211_data *data = dev_get_drvdata(dev); | |
842 | ||
843 | return sprintf(buf, "%d\n", vid_from_reg(data->vid, data->vrm)); | |
844 | } | |
845 | ||
846 | static ssize_t show_name(struct device *dev, | |
847 | struct device_attribute *attr, char *buf) | |
848 | { | |
849 | struct vt1211_data *data = dev_get_drvdata(dev); | |
850 | ||
851 | return sprintf(buf, "%s\n", data->name); | |
852 | } | |
853 | ||
854 | static ssize_t show_alarms(struct device *dev, | |
855 | struct device_attribute *attr, char *buf) | |
856 | { | |
857 | struct vt1211_data *data = vt1211_update_device(dev); | |
858 | ||
859 | return sprintf(buf, "%d\n", data->alarms); | |
860 | } | |
861 | ||
862 | /* --------------------------------------------------------------------- | |
863 | * Device attribute structs | |
864 | * --------------------------------------------------------------------- */ | |
865 | ||
866 | #define SENSOR_ATTR_IN_INPUT(ix) \ | |
867 | SENSOR_ATTR_2(in##ix##_input, S_IRUGO, \ | |
868 | show_in, NULL, SHOW_IN_INPUT, ix) | |
869 | ||
870 | static struct sensor_device_attribute_2 vt1211_sysfs_in_input[] = { | |
871 | SENSOR_ATTR_IN_INPUT(0), | |
872 | SENSOR_ATTR_IN_INPUT(1), | |
873 | SENSOR_ATTR_IN_INPUT(2), | |
874 | SENSOR_ATTR_IN_INPUT(3), | |
875 | SENSOR_ATTR_IN_INPUT(4), | |
876 | SENSOR_ATTR_IN_INPUT(5), | |
877 | }; | |
878 | ||
879 | #define SENSOR_ATTR_IN_MIN(ix) \ | |
880 | SENSOR_ATTR_2(in##ix##_min, S_IRUGO | S_IWUSR, \ | |
881 | show_in, set_in, SHOW_SET_IN_MIN, ix) | |
882 | ||
883 | static struct sensor_device_attribute_2 vt1211_sysfs_in_min[] = { | |
884 | SENSOR_ATTR_IN_MIN(0), | |
885 | SENSOR_ATTR_IN_MIN(1), | |
886 | SENSOR_ATTR_IN_MIN(2), | |
887 | SENSOR_ATTR_IN_MIN(3), | |
888 | SENSOR_ATTR_IN_MIN(4), | |
889 | SENSOR_ATTR_IN_MIN(5), | |
890 | }; | |
891 | ||
892 | #define SENSOR_ATTR_IN_MAX(ix) \ | |
893 | SENSOR_ATTR_2(in##ix##_max, S_IRUGO | S_IWUSR, \ | |
894 | show_in, set_in, SHOW_SET_IN_MAX, ix) | |
895 | ||
896 | static struct sensor_device_attribute_2 vt1211_sysfs_in_max[] = { | |
897 | SENSOR_ATTR_IN_MAX(0), | |
898 | SENSOR_ATTR_IN_MAX(1), | |
899 | SENSOR_ATTR_IN_MAX(2), | |
900 | SENSOR_ATTR_IN_MAX(3), | |
901 | SENSOR_ATTR_IN_MAX(4), | |
902 | SENSOR_ATTR_IN_MAX(5), | |
903 | }; | |
904 | ||
905 | #define SENSOR_ATTR_IN_ALARM(ix) \ | |
906 | SENSOR_ATTR_2(in##ix##_alarm, S_IRUGO, \ | |
907 | show_in, NULL, SHOW_IN_ALARM, ix) | |
908 | ||
909 | static struct sensor_device_attribute_2 vt1211_sysfs_in_alarm[] = { | |
910 | SENSOR_ATTR_IN_ALARM(0), | |
911 | SENSOR_ATTR_IN_ALARM(1), | |
912 | SENSOR_ATTR_IN_ALARM(2), | |
913 | SENSOR_ATTR_IN_ALARM(3), | |
914 | SENSOR_ATTR_IN_ALARM(4), | |
915 | SENSOR_ATTR_IN_ALARM(5), | |
916 | }; | |
917 | ||
918 | #define SENSOR_ATTR_TEMP_INPUT(ix) \ | |
919 | SENSOR_ATTR_2(temp##ix##_input, S_IRUGO, \ | |
920 | show_temp, NULL, SHOW_TEMP_INPUT, ix-1) | |
921 | ||
922 | static struct sensor_device_attribute_2 vt1211_sysfs_temp_input[] = { | |
923 | SENSOR_ATTR_TEMP_INPUT(1), | |
924 | SENSOR_ATTR_TEMP_INPUT(2), | |
925 | SENSOR_ATTR_TEMP_INPUT(3), | |
926 | SENSOR_ATTR_TEMP_INPUT(4), | |
927 | SENSOR_ATTR_TEMP_INPUT(5), | |
928 | SENSOR_ATTR_TEMP_INPUT(6), | |
929 | SENSOR_ATTR_TEMP_INPUT(7), | |
930 | }; | |
931 | ||
932 | #define SENSOR_ATTR_TEMP_MAX(ix) \ | |
933 | SENSOR_ATTR_2(temp##ix##_max, S_IRUGO | S_IWUSR, \ | |
934 | show_temp, set_temp, SHOW_SET_TEMP_MAX, ix-1) | |
935 | ||
936 | static struct sensor_device_attribute_2 vt1211_sysfs_temp_max[] = { | |
937 | SENSOR_ATTR_TEMP_MAX(1), | |
938 | SENSOR_ATTR_TEMP_MAX(2), | |
939 | SENSOR_ATTR_TEMP_MAX(3), | |
940 | SENSOR_ATTR_TEMP_MAX(4), | |
941 | SENSOR_ATTR_TEMP_MAX(5), | |
942 | SENSOR_ATTR_TEMP_MAX(6), | |
943 | SENSOR_ATTR_TEMP_MAX(7), | |
944 | }; | |
945 | ||
946 | #define SENSOR_ATTR_TEMP_MAX_HYST(ix) \ | |
947 | SENSOR_ATTR_2(temp##ix##_max_hyst, S_IRUGO | S_IWUSR, \ | |
948 | show_temp, set_temp, SHOW_SET_TEMP_MAX_HYST, ix-1) | |
949 | ||
950 | static struct sensor_device_attribute_2 vt1211_sysfs_temp_max_hyst[] = { | |
951 | SENSOR_ATTR_TEMP_MAX_HYST(1), | |
952 | SENSOR_ATTR_TEMP_MAX_HYST(2), | |
953 | SENSOR_ATTR_TEMP_MAX_HYST(3), | |
954 | SENSOR_ATTR_TEMP_MAX_HYST(4), | |
955 | SENSOR_ATTR_TEMP_MAX_HYST(5), | |
956 | SENSOR_ATTR_TEMP_MAX_HYST(6), | |
957 | SENSOR_ATTR_TEMP_MAX_HYST(7), | |
958 | }; | |
959 | ||
960 | #define SENSOR_ATTR_TEMP_ALARM(ix) \ | |
961 | SENSOR_ATTR_2(temp##ix##_alarm, S_IRUGO, \ | |
962 | show_temp, NULL, SHOW_TEMP_ALARM, ix-1) | |
963 | ||
964 | static struct sensor_device_attribute_2 vt1211_sysfs_temp_alarm[] = { | |
965 | SENSOR_ATTR_TEMP_ALARM(1), | |
966 | SENSOR_ATTR_TEMP_ALARM(2), | |
967 | SENSOR_ATTR_TEMP_ALARM(3), | |
968 | SENSOR_ATTR_TEMP_ALARM(4), | |
969 | SENSOR_ATTR_TEMP_ALARM(5), | |
970 | SENSOR_ATTR_TEMP_ALARM(6), | |
971 | SENSOR_ATTR_TEMP_ALARM(7), | |
972 | }; | |
973 | ||
974 | #define SENSOR_ATTR_FAN(ix) \ | |
975 | SENSOR_ATTR_2(fan##ix##_input, S_IRUGO, \ | |
976 | show_fan, NULL, SHOW_FAN_INPUT, ix-1), \ | |
977 | SENSOR_ATTR_2(fan##ix##_min, S_IRUGO | S_IWUSR, \ | |
978 | show_fan, set_fan, SHOW_SET_FAN_MIN, ix-1), \ | |
979 | SENSOR_ATTR_2(fan##ix##_div, S_IRUGO | S_IWUSR, \ | |
980 | show_fan, set_fan, SHOW_SET_FAN_DIV, ix-1), \ | |
981 | SENSOR_ATTR_2(fan##ix##_alarm, S_IRUGO, \ | |
982 | show_fan, NULL, SHOW_FAN_ALARM, ix-1) | |
983 | ||
984 | #define SENSOR_ATTR_PWM(ix) \ | |
985 | SENSOR_ATTR_2(pwm##ix, S_IRUGO, \ | |
986 | show_pwm, NULL, SHOW_PWM, ix-1), \ | |
987 | SENSOR_ATTR_2(pwm##ix##_enable, S_IRUGO | S_IWUSR, \ | |
988 | show_pwm, set_pwm, SHOW_SET_PWM_ENABLE, ix-1), \ | |
989 | SENSOR_ATTR_2(pwm##ix##_auto_channels_temp, S_IRUGO | S_IWUSR, \ | |
990 | show_pwm, set_pwm, SHOW_SET_PWM_AUTO_CHANNELS_TEMP, ix-1) | |
991 | ||
992 | #define SENSOR_ATTR_PWM_FREQ(ix) \ | |
993 | SENSOR_ATTR_2(pwm##ix##_freq, S_IRUGO | S_IWUSR, \ | |
994 | show_pwm, set_pwm, SHOW_SET_PWM_FREQ, ix-1) | |
995 | ||
996 | #define SENSOR_ATTR_PWM_FREQ_RO(ix) \ | |
997 | SENSOR_ATTR_2(pwm##ix##_freq, S_IRUGO, \ | |
998 | show_pwm, NULL, SHOW_SET_PWM_FREQ, ix-1) | |
999 | ||
1000 | #define SENSOR_ATTR_PWM_AUTO_POINT_TEMP(ix, ap) \ | |
1001 | SENSOR_ATTR_2(pwm##ix##_auto_point##ap##_temp, S_IRUGO | S_IWUSR, \ | |
1002 | show_pwm_auto_point_temp, set_pwm_auto_point_temp, \ | |
1003 | ap-1, ix-1) | |
1004 | ||
1005 | #define SENSOR_ATTR_PWM_AUTO_POINT_TEMP_RO(ix, ap) \ | |
1006 | SENSOR_ATTR_2(pwm##ix##_auto_point##ap##_temp, S_IRUGO, \ | |
1007 | show_pwm_auto_point_temp, NULL, \ | |
1008 | ap-1, ix-1) | |
1009 | ||
1010 | #define SENSOR_ATTR_PWM_AUTO_POINT_PWM(ix, ap) \ | |
1011 | SENSOR_ATTR_2(pwm##ix##_auto_point##ap##_pwm, S_IRUGO | S_IWUSR, \ | |
1012 | show_pwm_auto_point_pwm, set_pwm_auto_point_pwm, \ | |
1013 | ap-1, ix-1) | |
1014 | ||
1015 | #define SENSOR_ATTR_PWM_AUTO_POINT_PWM_RO(ix, ap) \ | |
1016 | SENSOR_ATTR_2(pwm##ix##_auto_point##ap##_pwm, S_IRUGO, \ | |
1017 | show_pwm_auto_point_pwm, NULL, \ | |
1018 | ap-1, ix-1) | |
1019 | ||
1020 | static struct sensor_device_attribute_2 vt1211_sysfs_fan_pwm[] = { | |
1021 | SENSOR_ATTR_FAN(1), | |
1022 | SENSOR_ATTR_FAN(2), | |
1023 | SENSOR_ATTR_PWM(1), | |
1024 | SENSOR_ATTR_PWM(2), | |
1025 | SENSOR_ATTR_PWM_FREQ(1), | |
1026 | SENSOR_ATTR_PWM_FREQ_RO(2), | |
1027 | SENSOR_ATTR_PWM_AUTO_POINT_TEMP(1, 1), | |
1028 | SENSOR_ATTR_PWM_AUTO_POINT_TEMP(1, 2), | |
1029 | SENSOR_ATTR_PWM_AUTO_POINT_TEMP(1, 3), | |
1030 | SENSOR_ATTR_PWM_AUTO_POINT_TEMP(1, 4), | |
1031 | SENSOR_ATTR_PWM_AUTO_POINT_TEMP_RO(2, 1), | |
1032 | SENSOR_ATTR_PWM_AUTO_POINT_TEMP_RO(2, 2), | |
1033 | SENSOR_ATTR_PWM_AUTO_POINT_TEMP_RO(2, 3), | |
1034 | SENSOR_ATTR_PWM_AUTO_POINT_TEMP_RO(2, 4), | |
1035 | SENSOR_ATTR_PWM_AUTO_POINT_PWM_RO(1, 1), | |
1036 | SENSOR_ATTR_PWM_AUTO_POINT_PWM(1, 2), | |
1037 | SENSOR_ATTR_PWM_AUTO_POINT_PWM(1, 3), | |
1038 | SENSOR_ATTR_PWM_AUTO_POINT_PWM_RO(1, 4), | |
1039 | SENSOR_ATTR_PWM_AUTO_POINT_PWM_RO(2, 1), | |
1040 | SENSOR_ATTR_PWM_AUTO_POINT_PWM(2, 2), | |
1041 | SENSOR_ATTR_PWM_AUTO_POINT_PWM(2, 3), | |
1042 | SENSOR_ATTR_PWM_AUTO_POINT_PWM_RO(2, 4), | |
1043 | }; | |
1044 | ||
1045 | static struct device_attribute vt1211_sysfs_misc[] = { | |
1046 | __ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm, set_vrm), | |
1047 | __ATTR(cpu0_vid, S_IRUGO, show_vid, NULL), | |
1048 | __ATTR(name, S_IRUGO, show_name, NULL), | |
1049 | __ATTR(alarms, S_IRUGO, show_alarms, NULL), | |
1050 | }; | |
1051 | ||
1052 | /* --------------------------------------------------------------------- | |
1053 | * Device registration and initialization | |
1054 | * --------------------------------------------------------------------- */ | |
1055 | ||
1056 | static void __devinit vt1211_init_device(struct vt1211_data *data) | |
1057 | { | |
1058 | /* set VRM */ | |
1059 | data->vrm = vid_which_vrm(); | |
1060 | ||
1061 | /* Read (and initialize) UCH config */ | |
1062 | data->uch_config = vt1211_read8(data, VT1211_REG_UCH_CONFIG); | |
1063 | if (uch_config > -1) { | |
1064 | data->uch_config = (data->uch_config & 0x83) | | |
1065 | (uch_config << 2); | |
1066 | vt1211_write8(data, VT1211_REG_UCH_CONFIG, data->uch_config); | |
1067 | } | |
1068 | ||
1069 | /* Initialize the interrupt mode (if request at module load time). | |
1070 | * The VT1211 implements 3 different modes for clearing interrupts: | |
1071 | * 0: Clear INT when status register is read. Regenerate INT as long | |
1072 | * as temp stays above hysteresis limit. | |
1073 | * 1: Clear INT when status register is read. DON'T regenerate INT | |
1074 | * until temp falls below hysteresis limit and exceeds hot limit | |
1075 | * again. | |
1076 | * 2: Clear INT when temp falls below max limit. | |
1077 | * | |
1078 | * The driver only allows to force mode 0 since that's the only one | |
1079 | * that makes sense for 'sensors' */ | |
1080 | if (int_mode == 0) { | |
1081 | vt1211_write8(data, VT1211_REG_TEMP1_CONFIG, 0); | |
1082 | vt1211_write8(data, VT1211_REG_TEMP2_CONFIG, 0); | |
1083 | } | |
1084 | ||
1085 | /* Fill in some hard wired values into our data struct */ | |
1086 | data->pwm_auto_pwm[0][3] = 255; | |
1087 | data->pwm_auto_pwm[1][3] = 255; | |
1088 | } | |
1089 | ||
1090 | static void vt1211_remove_sysfs(struct platform_device *pdev) | |
1091 | { | |
1092 | struct device *dev = &pdev->dev; | |
1093 | int i; | |
1094 | ||
1095 | for (i = 0; i < ARRAY_SIZE(vt1211_sysfs_in_input); i++) { | |
1096 | device_remove_file(dev, | |
1097 | &vt1211_sysfs_in_input[i].dev_attr); | |
1098 | device_remove_file(dev, | |
1099 | &vt1211_sysfs_in_min[i].dev_attr); | |
1100 | device_remove_file(dev, | |
1101 | &vt1211_sysfs_in_max[i].dev_attr); | |
1102 | device_remove_file(dev, | |
1103 | &vt1211_sysfs_in_alarm[i].dev_attr); | |
1104 | } | |
1105 | for (i = 0; i < ARRAY_SIZE(vt1211_sysfs_temp_input); i++) { | |
1106 | device_remove_file(dev, | |
1107 | &vt1211_sysfs_temp_input[i].dev_attr); | |
1108 | device_remove_file(dev, | |
1109 | &vt1211_sysfs_temp_max[i].dev_attr); | |
1110 | device_remove_file(dev, | |
1111 | &vt1211_sysfs_temp_max_hyst[i].dev_attr); | |
1112 | device_remove_file(dev, | |
1113 | &vt1211_sysfs_temp_alarm[i].dev_attr); | |
1114 | } | |
1115 | for (i = 0; i < ARRAY_SIZE(vt1211_sysfs_fan_pwm); i++) { | |
1116 | device_remove_file(dev, | |
1117 | &vt1211_sysfs_fan_pwm[i].dev_attr); | |
1118 | } | |
1119 | for (i = 0; i < ARRAY_SIZE(vt1211_sysfs_misc); i++) { | |
1120 | device_remove_file(dev, &vt1211_sysfs_misc[i]); | |
1121 | } | |
1122 | } | |
1123 | ||
1124 | static int __devinit vt1211_probe(struct platform_device *pdev) | |
1125 | { | |
1126 | struct device *dev = &pdev->dev; | |
1127 | struct vt1211_data *data; | |
1128 | struct resource *res; | |
1129 | int i, err; | |
1130 | ||
1131 | if (!(data = kzalloc(sizeof(struct vt1211_data), GFP_KERNEL))) { | |
1132 | err = -ENOMEM; | |
1133 | dev_err(dev, "Out of memory\n"); | |
1134 | goto EXIT; | |
1135 | } | |
1136 | ||
1137 | res = platform_get_resource(pdev, IORESOURCE_IO, 0); | |
ce7ee4e8 JD |
1138 | if (!request_region(res->start, res->end - res->start + 1, DRVNAME)) { |
1139 | err = -EBUSY; | |
1140 | dev_err(dev, "Failed to request region 0x%lx-0x%lx\n", | |
1141 | (unsigned long)res->start, (unsigned long)res->end); | |
1142 | goto EXIT_KFREE; | |
1143 | } | |
ab41319e JH |
1144 | data->addr = res->start; |
1145 | data->name = DRVNAME; | |
1146 | mutex_init(&data->update_lock); | |
1147 | ||
1148 | platform_set_drvdata(pdev, data); | |
1149 | ||
1150 | /* Initialize the VT1211 chip */ | |
1151 | vt1211_init_device(data); | |
1152 | ||
1153 | /* Create sysfs interface files */ | |
1154 | for (i = 0; i < ARRAY_SIZE(vt1211_sysfs_in_input); i++) { | |
1155 | if (ISVOLT(i, data->uch_config)) { | |
1156 | if ((err = device_create_file(dev, | |
1157 | &vt1211_sysfs_in_input[i].dev_attr)) || | |
1158 | (err = device_create_file(dev, | |
1159 | &vt1211_sysfs_in_min[i].dev_attr)) || | |
1160 | (err = device_create_file(dev, | |
1161 | &vt1211_sysfs_in_max[i].dev_attr)) || | |
1162 | (err = device_create_file(dev, | |
1163 | &vt1211_sysfs_in_alarm[i].dev_attr))) { | |
1164 | goto EXIT_DEV_REMOVE; | |
1165 | } | |
1166 | } | |
1167 | } | |
1168 | for (i = 0; i < ARRAY_SIZE(vt1211_sysfs_temp_input); i++) { | |
1169 | if (ISTEMP(i, data->uch_config)) { | |
1170 | if ((err = device_create_file(dev, | |
1171 | &vt1211_sysfs_temp_input[i].dev_attr)) || | |
1172 | (err = device_create_file(dev, | |
1173 | &vt1211_sysfs_temp_max[i].dev_attr)) || | |
1174 | (err = device_create_file(dev, | |
1175 | &vt1211_sysfs_temp_max_hyst[i].dev_attr)) || | |
1176 | (err = device_create_file(dev, | |
1177 | &vt1211_sysfs_temp_alarm[i].dev_attr))) { | |
1178 | goto EXIT_DEV_REMOVE; | |
1179 | } | |
1180 | } | |
1181 | } | |
1182 | for (i = 0; i < ARRAY_SIZE(vt1211_sysfs_fan_pwm); i++) { | |
1183 | err = device_create_file(dev, | |
1184 | &vt1211_sysfs_fan_pwm[i].dev_attr); | |
1185 | if (err) { | |
1186 | goto EXIT_DEV_REMOVE; | |
1187 | } | |
1188 | } | |
1189 | for (i = 0; i < ARRAY_SIZE(vt1211_sysfs_misc); i++) { | |
1190 | err = device_create_file(dev, | |
1191 | &vt1211_sysfs_misc[i]); | |
1192 | if (err) { | |
1193 | goto EXIT_DEV_REMOVE; | |
1194 | } | |
1195 | } | |
1196 | ||
1197 | /* Register device */ | |
1beeffe4 TJ |
1198 | data->hwmon_dev = hwmon_device_register(dev); |
1199 | if (IS_ERR(data->hwmon_dev)) { | |
1200 | err = PTR_ERR(data->hwmon_dev); | |
ab41319e JH |
1201 | dev_err(dev, "Class registration failed (%d)\n", err); |
1202 | goto EXIT_DEV_REMOVE_SILENT; | |
1203 | } | |
1204 | ||
1205 | return 0; | |
1206 | ||
1207 | EXIT_DEV_REMOVE: | |
1208 | dev_err(dev, "Sysfs interface creation failed (%d)\n", err); | |
1209 | EXIT_DEV_REMOVE_SILENT: | |
1210 | vt1211_remove_sysfs(pdev); | |
ce7ee4e8 JD |
1211 | release_region(res->start, res->end - res->start + 1); |
1212 | EXIT_KFREE: | |
ab41319e JH |
1213 | platform_set_drvdata(pdev, NULL); |
1214 | kfree(data); | |
1215 | EXIT: | |
1216 | return err; | |
1217 | } | |
1218 | ||
1219 | static int __devexit vt1211_remove(struct platform_device *pdev) | |
1220 | { | |
1221 | struct vt1211_data *data = platform_get_drvdata(pdev); | |
ce7ee4e8 | 1222 | struct resource *res; |
ab41319e | 1223 | |
1beeffe4 | 1224 | hwmon_device_unregister(data->hwmon_dev); |
ab41319e JH |
1225 | vt1211_remove_sysfs(pdev); |
1226 | platform_set_drvdata(pdev, NULL); | |
1227 | kfree(data); | |
1228 | ||
ce7ee4e8 JD |
1229 | res = platform_get_resource(pdev, IORESOURCE_IO, 0); |
1230 | release_region(res->start, res->end - res->start + 1); | |
1231 | ||
ab41319e JH |
1232 | return 0; |
1233 | } | |
1234 | ||
1235 | static struct platform_driver vt1211_driver = { | |
1236 | .driver = { | |
1237 | .owner = THIS_MODULE, | |
1238 | .name = DRVNAME, | |
1239 | }, | |
1240 | .probe = vt1211_probe, | |
1241 | .remove = __devexit_p(vt1211_remove), | |
1242 | }; | |
1243 | ||
1244 | static int __init vt1211_device_add(unsigned short address) | |
1245 | { | |
1246 | struct resource res = { | |
1247 | .start = address, | |
1248 | .end = address + 0x7f, | |
1249 | .flags = IORESOURCE_IO, | |
1250 | }; | |
1251 | int err; | |
1252 | ||
1253 | pdev = platform_device_alloc(DRVNAME, address); | |
1254 | if (!pdev) { | |
1255 | err = -ENOMEM; | |
1256 | printk(KERN_ERR DRVNAME ": Device allocation failed (%d)\n", | |
1257 | err); | |
1258 | goto EXIT; | |
1259 | } | |
1260 | ||
1261 | res.name = pdev->name; | |
1262 | err = platform_device_add_resources(pdev, &res, 1); | |
1263 | if (err) { | |
1264 | printk(KERN_ERR DRVNAME ": Device resource addition failed " | |
1265 | "(%d)\n", err); | |
1266 | goto EXIT_DEV_PUT; | |
1267 | } | |
1268 | ||
1269 | err = platform_device_add(pdev); | |
1270 | if (err) { | |
1271 | printk(KERN_ERR DRVNAME ": Device addition failed (%d)\n", | |
1272 | err); | |
1273 | goto EXIT_DEV_PUT; | |
1274 | } | |
1275 | ||
1276 | return 0; | |
1277 | ||
1278 | EXIT_DEV_PUT: | |
1279 | platform_device_put(pdev); | |
1280 | EXIT: | |
1281 | return err; | |
1282 | } | |
1283 | ||
2219cd81 | 1284 | static int __init vt1211_find(int sio_cip, unsigned short *address) |
ab41319e JH |
1285 | { |
1286 | int err = -ENODEV; | |
67b671bc | 1287 | int devid; |
ab41319e | 1288 | |
2219cd81 | 1289 | superio_enter(sio_cip); |
ab41319e | 1290 | |
67b671bc JD |
1291 | devid = force_id ? force_id : superio_inb(sio_cip, SIO_VT1211_DEVID); |
1292 | if (devid != SIO_VT1211_ID) { | |
ab41319e JH |
1293 | goto EXIT; |
1294 | } | |
1295 | ||
2219cd81 | 1296 | superio_select(sio_cip, SIO_VT1211_LDN_HWMON); |
ab41319e | 1297 | |
2219cd81 | 1298 | if ((superio_inb(sio_cip, SIO_VT1211_ACTIVE) & 1) == 0) { |
ab41319e JH |
1299 | printk(KERN_WARNING DRVNAME ": HW monitor is disabled, " |
1300 | "skipping\n"); | |
1301 | goto EXIT; | |
1302 | } | |
1303 | ||
2219cd81 JH |
1304 | *address = ((superio_inb(sio_cip, SIO_VT1211_BADDR) << 8) | |
1305 | (superio_inb(sio_cip, SIO_VT1211_BADDR + 1))) & 0xff00; | |
ab41319e JH |
1306 | if (*address == 0) { |
1307 | printk(KERN_WARNING DRVNAME ": Base address is not set, " | |
1308 | "skipping\n"); | |
1309 | goto EXIT; | |
1310 | } | |
1311 | ||
1312 | err = 0; | |
1313 | printk(KERN_INFO DRVNAME ": Found VT1211 chip at 0x%04x, " | |
2219cd81 JH |
1314 | "revision %u\n", *address, |
1315 | superio_inb(sio_cip, SIO_VT1211_DEVREV)); | |
ab41319e JH |
1316 | |
1317 | EXIT: | |
2219cd81 | 1318 | superio_exit(sio_cip); |
ab41319e JH |
1319 | return err; |
1320 | } | |
1321 | ||
1322 | static int __init vt1211_init(void) | |
1323 | { | |
1324 | int err; | |
1325 | unsigned short address = 0; | |
1326 | ||
2219cd81 JH |
1327 | if ((err = vt1211_find(SIO_REG_CIP1, &address)) && |
1328 | (err = vt1211_find(SIO_REG_CIP2, &address))) { | |
ab41319e JH |
1329 | goto EXIT; |
1330 | } | |
1331 | ||
1332 | if ((uch_config < -1) || (uch_config > 31)) { | |
1333 | err = -EINVAL; | |
1334 | printk(KERN_WARNING DRVNAME ": Invalid UCH configuration %d. " | |
1335 | "Choose a value between 0 and 31.\n", uch_config); | |
1336 | goto EXIT; | |
1337 | } | |
1338 | ||
1339 | if ((int_mode < -1) || (int_mode > 0)) { | |
1340 | err = -EINVAL; | |
1341 | printk(KERN_WARNING DRVNAME ": Invalid interrupt mode %d. " | |
1342 | "Only mode 0 is supported.\n", int_mode); | |
1343 | goto EXIT; | |
1344 | } | |
1345 | ||
1346 | err = platform_driver_register(&vt1211_driver); | |
1347 | if (err) { | |
1348 | goto EXIT; | |
1349 | } | |
1350 | ||
1351 | /* Sets global pdev as a side effect */ | |
1352 | err = vt1211_device_add(address); | |
1353 | if (err) { | |
1354 | goto EXIT_DRV_UNREGISTER; | |
1355 | } | |
1356 | ||
1357 | return 0; | |
1358 | ||
1359 | EXIT_DRV_UNREGISTER: | |
1360 | platform_driver_unregister(&vt1211_driver); | |
1361 | EXIT: | |
1362 | return err; | |
1363 | } | |
1364 | ||
1365 | static void __exit vt1211_exit(void) | |
1366 | { | |
1367 | platform_device_unregister(pdev); | |
1368 | platform_driver_unregister(&vt1211_driver); | |
1369 | } | |
1370 | ||
1371 | MODULE_AUTHOR("Juerg Haefliger <juergh@gmail.com>"); | |
1372 | MODULE_DESCRIPTION("VT1211 sensors"); | |
1373 | MODULE_LICENSE("GPL"); | |
1374 | ||
1375 | module_init(vt1211_init); | |
1376 | module_exit(vt1211_exit); |