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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 | ||
5ed9ba6b JP |
24 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
25 | ||
ab41319e JH |
26 | #include <linux/module.h> |
27 | #include <linux/init.h> | |
28 | #include <linux/slab.h> | |
29 | #include <linux/jiffies.h> | |
30 | #include <linux/platform_device.h> | |
31 | #include <linux/hwmon.h> | |
32 | #include <linux/hwmon-sysfs.h> | |
33 | #include <linux/hwmon-vid.h> | |
34 | #include <linux/err.h> | |
35 | #include <linux/mutex.h> | |
ce7ee4e8 | 36 | #include <linux/ioport.h> |
b9acb64a | 37 | #include <linux/acpi.h> |
6055fae8 | 38 | #include <linux/io.h> |
ab41319e JH |
39 | |
40 | static int uch_config = -1; | |
41 | module_param(uch_config, int, 0); | |
42 | MODULE_PARM_DESC(uch_config, "Initialize the universal channel configuration"); | |
43 | ||
44 | static int int_mode = -1; | |
45 | module_param(int_mode, int, 0); | |
46 | MODULE_PARM_DESC(int_mode, "Force the temperature interrupt mode"); | |
47 | ||
67b671bc JD |
48 | static unsigned short force_id; |
49 | module_param(force_id, ushort, 0); | |
50 | MODULE_PARM_DESC(force_id, "Override the detected device ID"); | |
51 | ||
ab41319e JH |
52 | static struct platform_device *pdev; |
53 | ||
54 | #define DRVNAME "vt1211" | |
55 | ||
56 | /* --------------------------------------------------------------------- | |
57 | * Registers | |
58 | * | |
59 | * The sensors are defined as follows. | |
60 | * | |
61 | * Sensor Voltage Mode Temp Mode Notes (from the datasheet) | |
62 | * -------- ------------ --------- -------------------------- | |
63 | * Reading 1 temp1 Intel thermal diode | |
64 | * Reading 3 temp2 Internal thermal diode | |
65 | * UCH1/Reading2 in0 temp3 NTC type thermistor | |
66 | * UCH2 in1 temp4 +2.5V | |
67 | * UCH3 in2 temp5 VccP | |
68 | * UCH4 in3 temp6 +5V | |
69 | * UCH5 in4 temp7 +12V | |
70 | * 3.3V in5 Internal VDD (+3.3V) | |
71 | * | |
72 | * --------------------------------------------------------------------- */ | |
73 | ||
74 | /* Voltages (in) numbered 0-5 (ix) */ | |
75 | #define VT1211_REG_IN(ix) (0x21 + (ix)) | |
76 | #define VT1211_REG_IN_MIN(ix) ((ix) == 0 ? 0x3e : 0x2a + 2 * (ix)) | |
77 | #define VT1211_REG_IN_MAX(ix) ((ix) == 0 ? 0x3d : 0x29 + 2 * (ix)) | |
78 | ||
79 | /* Temperatures (temp) numbered 0-6 (ix) */ | |
80 | static u8 regtemp[] = {0x1f, 0x20, 0x21, 0x22, 0x23, 0x24, 0x25}; | |
81 | static u8 regtempmax[] = {0x39, 0x1d, 0x3d, 0x2b, 0x2d, 0x2f, 0x31}; | |
82 | static u8 regtemphyst[] = {0x3a, 0x1e, 0x3e, 0x2c, 0x2e, 0x30, 0x32}; | |
83 | ||
84 | /* Fans numbered 0-1 (ix) */ | |
85 | #define VT1211_REG_FAN(ix) (0x29 + (ix)) | |
86 | #define VT1211_REG_FAN_MIN(ix) (0x3b + (ix)) | |
87 | #define VT1211_REG_FAN_DIV 0x47 | |
88 | ||
89 | /* PWMs numbered 0-1 (ix) */ | |
90 | /* Auto points numbered 0-3 (ap) */ | |
91 | #define VT1211_REG_PWM(ix) (0x60 + (ix)) | |
92 | #define VT1211_REG_PWM_CLK 0x50 | |
93 | #define VT1211_REG_PWM_CTL 0x51 | |
94 | #define VT1211_REG_PWM_AUTO_TEMP(ap) (0x55 - (ap)) | |
95 | #define VT1211_REG_PWM_AUTO_PWM(ix, ap) (0x58 + 2 * (ix) - (ap)) | |
96 | ||
97 | /* Miscellaneous registers */ | |
98 | #define VT1211_REG_CONFIG 0x40 | |
99 | #define VT1211_REG_ALARM1 0x41 | |
100 | #define VT1211_REG_ALARM2 0x42 | |
101 | #define VT1211_REG_VID 0x45 | |
102 | #define VT1211_REG_UCH_CONFIG 0x4a | |
103 | #define VT1211_REG_TEMP1_CONFIG 0x4b | |
104 | #define VT1211_REG_TEMP2_CONFIG 0x4c | |
105 | ||
106 | /* In, temp & fan alarm bits */ | |
107 | static const u8 bitalarmin[] = {11, 0, 1, 3, 8, 2, 9}; | |
108 | static const u8 bitalarmtemp[] = {4, 15, 11, 0, 1, 3, 8}; | |
109 | static const u8 bitalarmfan[] = {6, 7}; | |
110 | ||
111 | /* --------------------------------------------------------------------- | |
112 | * Data structures and manipulation thereof | |
113 | * --------------------------------------------------------------------- */ | |
114 | ||
115 | struct vt1211_data { | |
116 | unsigned short addr; | |
117 | const char *name; | |
1beeffe4 | 118 | struct device *hwmon_dev; |
ab41319e JH |
119 | |
120 | struct mutex update_lock; | |
121 | char valid; /* !=0 if following fields are valid */ | |
122 | unsigned long last_updated; /* In jiffies */ | |
123 | ||
124 | /* Register values */ | |
125 | u8 in[6]; | |
126 | u8 in_max[6]; | |
127 | u8 in_min[6]; | |
128 | u8 temp[7]; | |
129 | u8 temp_max[7]; | |
130 | u8 temp_hyst[7]; | |
131 | u8 fan[2]; | |
132 | u8 fan_min[2]; | |
133 | u8 fan_div[2]; | |
134 | u8 fan_ctl; | |
135 | u8 pwm[2]; | |
136 | u8 pwm_ctl[2]; | |
137 | u8 pwm_clk; | |
138 | u8 pwm_auto_temp[4]; | |
139 | u8 pwm_auto_pwm[2][4]; | |
140 | u8 vid; /* Read once at init time */ | |
141 | u8 vrm; | |
142 | u8 uch_config; /* Read once at init time */ | |
143 | u16 alarms; | |
144 | }; | |
145 | ||
146 | /* ix = [0-5] */ | |
147 | #define ISVOLT(ix, uch_config) ((ix) > 4 ? 1 : \ | |
148 | !(((uch_config) >> ((ix) + 2)) & 1)) | |
149 | ||
150 | /* ix = [0-6] */ | |
151 | #define ISTEMP(ix, uch_config) ((ix) < 2 ? 1 : \ | |
152 | ((uch_config) >> (ix)) & 1) | |
153 | ||
154 | /* in5 (ix = 5) is special. It's the internal 3.3V so it's scaled in the | |
155 | driver according to the VT1211 BIOS porting guide */ | |
156 | #define IN_FROM_REG(ix, reg) ((reg) < 3 ? 0 : (ix) == 5 ? \ | |
157 | (((reg) - 3) * 15882 + 479) / 958 : \ | |
158 | (((reg) - 3) * 10000 + 479) / 958) | |
159 | #define IN_TO_REG(ix, val) (SENSORS_LIMIT((ix) == 5 ? \ | |
160 | ((val) * 958 + 7941) / 15882 + 3 : \ | |
161 | ((val) * 958 + 5000) / 10000 + 3, 0, 255)) | |
162 | ||
163 | /* temp1 (ix = 0) is an intel thermal diode which is scaled in user space. | |
164 | temp2 (ix = 1) is the internal temp diode so it's scaled in the driver | |
165 | according to some measurements that I took on an EPIA M10000. | |
166 | temp3-7 are thermistor based so the driver returns the voltage measured at | |
167 | the pin (range 0V - 2.2V). */ | |
168 | #define TEMP_FROM_REG(ix, reg) ((ix) == 0 ? (reg) * 1000 : \ | |
169 | (ix) == 1 ? (reg) < 51 ? 0 : \ | |
170 | ((reg) - 51) * 1000 : \ | |
171 | ((253 - (reg)) * 2200 + 105) / 210) | |
172 | #define TEMP_TO_REG(ix, val) SENSORS_LIMIT( \ | |
173 | ((ix) == 0 ? ((val) + 500) / 1000 : \ | |
174 | (ix) == 1 ? ((val) + 500) / 1000 + 51 : \ | |
175 | 253 - ((val) * 210 + 1100) / 2200), 0, 255) | |
176 | ||
177 | #define DIV_FROM_REG(reg) (1 << (reg)) | |
178 | ||
179 | #define RPM_FROM_REG(reg, div) (((reg) == 0) || ((reg) == 255) ? 0 : \ | |
180 | 1310720 / (reg) / DIV_FROM_REG(div)) | |
181 | #define RPM_TO_REG(val, div) ((val) == 0 ? 255 : \ | |
182 | SENSORS_LIMIT((1310720 / (val) / \ | |
183 | DIV_FROM_REG(div)), 1, 254)) | |
184 | ||
185 | /* --------------------------------------------------------------------- | |
186 | * Super-I/O constants and functions | |
187 | * --------------------------------------------------------------------- */ | |
188 | ||
2219cd81 JH |
189 | /* Configuration index port registers |
190 | * The vt1211 can live at 2 different addresses so we need to probe both */ | |
191 | #define SIO_REG_CIP1 0x2e | |
192 | #define SIO_REG_CIP2 0x4e | |
ab41319e JH |
193 | |
194 | /* Configuration registers */ | |
195 | #define SIO_VT1211_LDN 0x07 /* logical device number */ | |
196 | #define SIO_VT1211_DEVID 0x20 /* device ID */ | |
197 | #define SIO_VT1211_DEVREV 0x21 /* device revision */ | |
198 | #define SIO_VT1211_ACTIVE 0x30 /* HW monitor active */ | |
199 | #define SIO_VT1211_BADDR 0x60 /* base I/O address */ | |
200 | #define SIO_VT1211_ID 0x3c /* VT1211 device ID */ | |
201 | ||
202 | /* VT1211 logical device numbers */ | |
203 | #define SIO_VT1211_LDN_HWMON 0x0b /* HW monitor */ | |
204 | ||
2219cd81 | 205 | static inline void superio_outb(int sio_cip, int reg, int val) |
ab41319e | 206 | { |
2219cd81 JH |
207 | outb(reg, sio_cip); |
208 | outb(val, sio_cip + 1); | |
ab41319e JH |
209 | } |
210 | ||
2219cd81 | 211 | static inline int superio_inb(int sio_cip, int reg) |
ab41319e | 212 | { |
2219cd81 JH |
213 | outb(reg, sio_cip); |
214 | return inb(sio_cip + 1); | |
ab41319e JH |
215 | } |
216 | ||
2219cd81 | 217 | static inline void superio_select(int sio_cip, int ldn) |
ab41319e | 218 | { |
2219cd81 JH |
219 | outb(SIO_VT1211_LDN, sio_cip); |
220 | outb(ldn, sio_cip + 1); | |
ab41319e JH |
221 | } |
222 | ||
2219cd81 | 223 | static inline void superio_enter(int sio_cip) |
ab41319e | 224 | { |
2219cd81 JH |
225 | outb(0x87, sio_cip); |
226 | outb(0x87, sio_cip); | |
ab41319e JH |
227 | } |
228 | ||
2219cd81 | 229 | static inline void superio_exit(int sio_cip) |
ab41319e | 230 | { |
2219cd81 | 231 | outb(0xaa, sio_cip); |
ab41319e JH |
232 | } |
233 | ||
234 | /* --------------------------------------------------------------------- | |
235 | * Device I/O access | |
236 | * --------------------------------------------------------------------- */ | |
237 | ||
238 | static inline u8 vt1211_read8(struct vt1211_data *data, u8 reg) | |
239 | { | |
240 | return inb(data->addr + reg); | |
241 | } | |
242 | ||
243 | static inline void vt1211_write8(struct vt1211_data *data, u8 reg, u8 val) | |
244 | { | |
245 | outb(val, data->addr + reg); | |
246 | } | |
247 | ||
248 | static struct vt1211_data *vt1211_update_device(struct device *dev) | |
249 | { | |
250 | struct vt1211_data *data = dev_get_drvdata(dev); | |
251 | int ix, val; | |
252 | ||
253 | mutex_lock(&data->update_lock); | |
254 | ||
255 | /* registers cache is refreshed after 1 second */ | |
256 | if (time_after(jiffies, data->last_updated + HZ) || !data->valid) { | |
257 | /* read VID */ | |
258 | data->vid = vt1211_read8(data, VT1211_REG_VID) & 0x1f; | |
259 | ||
260 | /* voltage (in) registers */ | |
261 | for (ix = 0; ix < ARRAY_SIZE(data->in); ix++) { | |
262 | if (ISVOLT(ix, data->uch_config)) { | |
263 | data->in[ix] = vt1211_read8(data, | |
264 | VT1211_REG_IN(ix)); | |
265 | data->in_min[ix] = vt1211_read8(data, | |
266 | VT1211_REG_IN_MIN(ix)); | |
267 | data->in_max[ix] = vt1211_read8(data, | |
268 | VT1211_REG_IN_MAX(ix)); | |
269 | } | |
270 | } | |
271 | ||
272 | /* temp registers */ | |
273 | for (ix = 0; ix < ARRAY_SIZE(data->temp); ix++) { | |
274 | if (ISTEMP(ix, data->uch_config)) { | |
275 | data->temp[ix] = vt1211_read8(data, | |
276 | regtemp[ix]); | |
277 | data->temp_max[ix] = vt1211_read8(data, | |
278 | regtempmax[ix]); | |
279 | data->temp_hyst[ix] = vt1211_read8(data, | |
280 | regtemphyst[ix]); | |
281 | } | |
282 | } | |
283 | ||
284 | /* fan & pwm registers */ | |
285 | for (ix = 0; ix < ARRAY_SIZE(data->fan); ix++) { | |
286 | data->fan[ix] = vt1211_read8(data, | |
287 | VT1211_REG_FAN(ix)); | |
288 | data->fan_min[ix] = vt1211_read8(data, | |
289 | VT1211_REG_FAN_MIN(ix)); | |
290 | data->pwm[ix] = vt1211_read8(data, | |
291 | VT1211_REG_PWM(ix)); | |
292 | } | |
293 | val = vt1211_read8(data, VT1211_REG_FAN_DIV); | |
294 | data->fan_div[0] = (val >> 4) & 3; | |
295 | data->fan_div[1] = (val >> 6) & 3; | |
296 | data->fan_ctl = val & 0xf; | |
297 | ||
298 | val = vt1211_read8(data, VT1211_REG_PWM_CTL); | |
299 | data->pwm_ctl[0] = val & 0xf; | |
300 | data->pwm_ctl[1] = (val >> 4) & 0xf; | |
301 | ||
302 | data->pwm_clk = vt1211_read8(data, VT1211_REG_PWM_CLK); | |
303 | ||
304 | /* pwm & temp auto point registers */ | |
305 | data->pwm_auto_pwm[0][1] = vt1211_read8(data, | |
306 | VT1211_REG_PWM_AUTO_PWM(0, 1)); | |
307 | data->pwm_auto_pwm[0][2] = vt1211_read8(data, | |
308 | VT1211_REG_PWM_AUTO_PWM(0, 2)); | |
309 | data->pwm_auto_pwm[1][1] = vt1211_read8(data, | |
310 | VT1211_REG_PWM_AUTO_PWM(1, 1)); | |
311 | data->pwm_auto_pwm[1][2] = vt1211_read8(data, | |
312 | VT1211_REG_PWM_AUTO_PWM(1, 2)); | |
313 | for (ix = 0; ix < ARRAY_SIZE(data->pwm_auto_temp); ix++) { | |
314 | data->pwm_auto_temp[ix] = vt1211_read8(data, | |
315 | VT1211_REG_PWM_AUTO_TEMP(ix)); | |
316 | } | |
317 | ||
318 | /* alarm registers */ | |
319 | data->alarms = (vt1211_read8(data, VT1211_REG_ALARM2) << 8) | | |
320 | vt1211_read8(data, VT1211_REG_ALARM1); | |
321 | ||
322 | data->last_updated = jiffies; | |
323 | data->valid = 1; | |
324 | } | |
325 | ||
326 | mutex_unlock(&data->update_lock); | |
327 | ||
328 | return data; | |
329 | } | |
330 | ||
331 | /* --------------------------------------------------------------------- | |
332 | * Voltage sysfs interfaces | |
333 | * ix = [0-5] | |
334 | * --------------------------------------------------------------------- */ | |
335 | ||
336 | #define SHOW_IN_INPUT 0 | |
337 | #define SHOW_SET_IN_MIN 1 | |
338 | #define SHOW_SET_IN_MAX 2 | |
339 | #define SHOW_IN_ALARM 3 | |
340 | ||
341 | static ssize_t show_in(struct device *dev, struct device_attribute *attr, | |
342 | char *buf) | |
343 | { | |
344 | struct vt1211_data *data = vt1211_update_device(dev); | |
345 | struct sensor_device_attribute_2 *sensor_attr_2 = | |
346 | to_sensor_dev_attr_2(attr); | |
347 | int ix = sensor_attr_2->index; | |
348 | int fn = sensor_attr_2->nr; | |
349 | int res; | |
350 | ||
351 | switch (fn) { | |
352 | case SHOW_IN_INPUT: | |
353 | res = IN_FROM_REG(ix, data->in[ix]); | |
354 | break; | |
355 | case SHOW_SET_IN_MIN: | |
356 | res = IN_FROM_REG(ix, data->in_min[ix]); | |
357 | break; | |
358 | case SHOW_SET_IN_MAX: | |
359 | res = IN_FROM_REG(ix, data->in_max[ix]); | |
360 | break; | |
361 | case SHOW_IN_ALARM: | |
362 | res = (data->alarms >> bitalarmin[ix]) & 1; | |
363 | break; | |
364 | default: | |
365 | res = 0; | |
366 | dev_dbg(dev, "Unknown attr fetch (%d)\n", fn); | |
367 | } | |
368 | ||
369 | return sprintf(buf, "%d\n", res); | |
370 | } | |
371 | ||
372 | static ssize_t set_in(struct device *dev, struct device_attribute *attr, | |
373 | const char *buf, size_t count) | |
374 | { | |
375 | struct vt1211_data *data = dev_get_drvdata(dev); | |
376 | struct sensor_device_attribute_2 *sensor_attr_2 = | |
377 | to_sensor_dev_attr_2(attr); | |
378 | int ix = sensor_attr_2->index; | |
379 | int fn = sensor_attr_2->nr; | |
380 | long val = simple_strtol(buf, NULL, 10); | |
381 | ||
382 | mutex_lock(&data->update_lock); | |
383 | switch (fn) { | |
384 | case SHOW_SET_IN_MIN: | |
385 | data->in_min[ix] = IN_TO_REG(ix, val); | |
386 | vt1211_write8(data, VT1211_REG_IN_MIN(ix), data->in_min[ix]); | |
387 | break; | |
388 | case SHOW_SET_IN_MAX: | |
389 | data->in_max[ix] = IN_TO_REG(ix, val); | |
390 | vt1211_write8(data, VT1211_REG_IN_MAX(ix), data->in_max[ix]); | |
391 | break; | |
392 | default: | |
393 | dev_dbg(dev, "Unknown attr fetch (%d)\n", fn); | |
394 | } | |
395 | mutex_unlock(&data->update_lock); | |
396 | ||
397 | return count; | |
398 | } | |
399 | ||
400 | /* --------------------------------------------------------------------- | |
401 | * Temperature sysfs interfaces | |
402 | * ix = [0-6] | |
403 | * --------------------------------------------------------------------- */ | |
404 | ||
405 | #define SHOW_TEMP_INPUT 0 | |
406 | #define SHOW_SET_TEMP_MAX 1 | |
407 | #define SHOW_SET_TEMP_MAX_HYST 2 | |
408 | #define SHOW_TEMP_ALARM 3 | |
409 | ||
410 | static ssize_t show_temp(struct device *dev, struct device_attribute *attr, | |
411 | char *buf) | |
412 | { | |
413 | struct vt1211_data *data = vt1211_update_device(dev); | |
414 | struct sensor_device_attribute_2 *sensor_attr_2 = | |
415 | to_sensor_dev_attr_2(attr); | |
416 | int ix = sensor_attr_2->index; | |
417 | int fn = sensor_attr_2->nr; | |
418 | int res; | |
419 | ||
420 | switch (fn) { | |
421 | case SHOW_TEMP_INPUT: | |
422 | res = TEMP_FROM_REG(ix, data->temp[ix]); | |
423 | break; | |
424 | case SHOW_SET_TEMP_MAX: | |
425 | res = TEMP_FROM_REG(ix, data->temp_max[ix]); | |
426 | break; | |
427 | case SHOW_SET_TEMP_MAX_HYST: | |
428 | res = TEMP_FROM_REG(ix, data->temp_hyst[ix]); | |
429 | break; | |
430 | case SHOW_TEMP_ALARM: | |
431 | res = (data->alarms >> bitalarmtemp[ix]) & 1; | |
432 | break; | |
433 | default: | |
434 | res = 0; | |
435 | dev_dbg(dev, "Unknown attr fetch (%d)\n", fn); | |
436 | } | |
437 | ||
438 | return sprintf(buf, "%d\n", res); | |
439 | } | |
440 | ||
441 | static ssize_t set_temp(struct device *dev, struct device_attribute *attr, | |
442 | const char *buf, size_t count) | |
443 | { | |
444 | struct vt1211_data *data = dev_get_drvdata(dev); | |
445 | struct sensor_device_attribute_2 *sensor_attr_2 = | |
446 | to_sensor_dev_attr_2(attr); | |
447 | int ix = sensor_attr_2->index; | |
448 | int fn = sensor_attr_2->nr; | |
449 | long val = simple_strtol(buf, NULL, 10); | |
450 | ||
451 | mutex_lock(&data->update_lock); | |
452 | switch (fn) { | |
453 | case SHOW_SET_TEMP_MAX: | |
454 | data->temp_max[ix] = TEMP_TO_REG(ix, val); | |
455 | vt1211_write8(data, regtempmax[ix], | |
456 | data->temp_max[ix]); | |
457 | break; | |
458 | case SHOW_SET_TEMP_MAX_HYST: | |
459 | data->temp_hyst[ix] = TEMP_TO_REG(ix, val); | |
460 | vt1211_write8(data, regtemphyst[ix], | |
461 | data->temp_hyst[ix]); | |
462 | break; | |
463 | default: | |
464 | dev_dbg(dev, "Unknown attr fetch (%d)\n", fn); | |
465 | } | |
466 | mutex_unlock(&data->update_lock); | |
467 | ||
468 | return count; | |
469 | } | |
470 | ||
471 | /* --------------------------------------------------------------------- | |
472 | * Fan sysfs interfaces | |
473 | * ix = [0-1] | |
474 | * --------------------------------------------------------------------- */ | |
475 | ||
476 | #define SHOW_FAN_INPUT 0 | |
477 | #define SHOW_SET_FAN_MIN 1 | |
478 | #define SHOW_SET_FAN_DIV 2 | |
479 | #define SHOW_FAN_ALARM 3 | |
480 | ||
481 | static ssize_t show_fan(struct device *dev, struct device_attribute *attr, | |
482 | char *buf) | |
483 | { | |
484 | struct vt1211_data *data = vt1211_update_device(dev); | |
485 | struct sensor_device_attribute_2 *sensor_attr_2 = | |
486 | to_sensor_dev_attr_2(attr); | |
487 | int ix = sensor_attr_2->index; | |
488 | int fn = sensor_attr_2->nr; | |
489 | int res; | |
490 | ||
491 | switch (fn) { | |
492 | case SHOW_FAN_INPUT: | |
493 | res = RPM_FROM_REG(data->fan[ix], data->fan_div[ix]); | |
494 | break; | |
495 | case SHOW_SET_FAN_MIN: | |
496 | res = RPM_FROM_REG(data->fan_min[ix], data->fan_div[ix]); | |
497 | break; | |
498 | case SHOW_SET_FAN_DIV: | |
499 | res = DIV_FROM_REG(data->fan_div[ix]); | |
500 | break; | |
501 | case SHOW_FAN_ALARM: | |
502 | res = (data->alarms >> bitalarmfan[ix]) & 1; | |
503 | break; | |
504 | default: | |
505 | res = 0; | |
506 | dev_dbg(dev, "Unknown attr fetch (%d)\n", fn); | |
507 | } | |
508 | ||
509 | return sprintf(buf, "%d\n", res); | |
510 | } | |
511 | ||
512 | static ssize_t set_fan(struct device *dev, struct device_attribute *attr, | |
513 | const char *buf, size_t count) | |
514 | { | |
515 | struct vt1211_data *data = dev_get_drvdata(dev); | |
516 | struct sensor_device_attribute_2 *sensor_attr_2 = | |
517 | to_sensor_dev_attr_2(attr); | |
518 | int ix = sensor_attr_2->index; | |
519 | int fn = sensor_attr_2->nr; | |
520 | long val = simple_strtol(buf, NULL, 10); | |
521 | int reg; | |
522 | ||
523 | mutex_lock(&data->update_lock); | |
524 | ||
525 | /* sync the data cache */ | |
526 | reg = vt1211_read8(data, VT1211_REG_FAN_DIV); | |
527 | data->fan_div[0] = (reg >> 4) & 3; | |
528 | data->fan_div[1] = (reg >> 6) & 3; | |
529 | data->fan_ctl = reg & 0xf; | |
530 | ||
531 | switch (fn) { | |
532 | case SHOW_SET_FAN_MIN: | |
533 | data->fan_min[ix] = RPM_TO_REG(val, data->fan_div[ix]); | |
534 | vt1211_write8(data, VT1211_REG_FAN_MIN(ix), | |
535 | data->fan_min[ix]); | |
536 | break; | |
537 | case SHOW_SET_FAN_DIV: | |
538 | switch (val) { | |
539 | case 1: data->fan_div[ix] = 0; break; | |
540 | case 2: data->fan_div[ix] = 1; break; | |
541 | case 4: data->fan_div[ix] = 2; break; | |
542 | case 8: data->fan_div[ix] = 3; break; | |
543 | default: | |
544 | count = -EINVAL; | |
545 | dev_warn(dev, "fan div value %ld not " | |
546 | "supported. Choose one of 1, 2, " | |
547 | "4, or 8.\n", val); | |
548 | goto EXIT; | |
549 | } | |
550 | vt1211_write8(data, VT1211_REG_FAN_DIV, | |
551 | ((data->fan_div[1] << 6) | | |
552 | (data->fan_div[0] << 4) | | |
553 | data->fan_ctl)); | |
554 | break; | |
555 | default: | |
556 | dev_dbg(dev, "Unknown attr fetch (%d)\n", fn); | |
557 | } | |
558 | ||
559 | EXIT: | |
560 | mutex_unlock(&data->update_lock); | |
561 | return count; | |
562 | } | |
563 | ||
564 | /* --------------------------------------------------------------------- | |
565 | * PWM sysfs interfaces | |
566 | * ix = [0-1] | |
567 | * --------------------------------------------------------------------- */ | |
568 | ||
569 | #define SHOW_PWM 0 | |
570 | #define SHOW_SET_PWM_ENABLE 1 | |
571 | #define SHOW_SET_PWM_FREQ 2 | |
572 | #define SHOW_SET_PWM_AUTO_CHANNELS_TEMP 3 | |
573 | ||
574 | static ssize_t show_pwm(struct device *dev, struct device_attribute *attr, | |
575 | char *buf) | |
576 | { | |
577 | struct vt1211_data *data = vt1211_update_device(dev); | |
578 | struct sensor_device_attribute_2 *sensor_attr_2 = | |
579 | to_sensor_dev_attr_2(attr); | |
580 | int ix = sensor_attr_2->index; | |
581 | int fn = sensor_attr_2->nr; | |
582 | int res; | |
583 | ||
584 | switch (fn) { | |
585 | case SHOW_PWM: | |
586 | res = data->pwm[ix]; | |
587 | break; | |
588 | case SHOW_SET_PWM_ENABLE: | |
589 | res = ((data->pwm_ctl[ix] >> 3) & 1) ? 2 : 0; | |
590 | break; | |
591 | case SHOW_SET_PWM_FREQ: | |
592 | res = 90000 >> (data->pwm_clk & 7); | |
593 | break; | |
594 | case SHOW_SET_PWM_AUTO_CHANNELS_TEMP: | |
595 | res = (data->pwm_ctl[ix] & 7) + 1; | |
596 | break; | |
597 | default: | |
598 | res = 0; | |
599 | dev_dbg(dev, "Unknown attr fetch (%d)\n", fn); | |
600 | } | |
601 | ||
602 | return sprintf(buf, "%d\n", res); | |
603 | } | |
604 | ||
605 | static ssize_t set_pwm(struct device *dev, struct device_attribute *attr, | |
606 | const char *buf, size_t count) | |
607 | { | |
608 | struct vt1211_data *data = dev_get_drvdata(dev); | |
609 | struct sensor_device_attribute_2 *sensor_attr_2 = | |
610 | to_sensor_dev_attr_2(attr); | |
611 | int ix = sensor_attr_2->index; | |
612 | int fn = sensor_attr_2->nr; | |
613 | long val = simple_strtol(buf, NULL, 10); | |
614 | int tmp, reg; | |
615 | ||
616 | mutex_lock(&data->update_lock); | |
617 | ||
618 | switch (fn) { | |
619 | case SHOW_SET_PWM_ENABLE: | |
620 | /* sync the data cache */ | |
621 | reg = vt1211_read8(data, VT1211_REG_FAN_DIV); | |
622 | data->fan_div[0] = (reg >> 4) & 3; | |
623 | data->fan_div[1] = (reg >> 6) & 3; | |
624 | data->fan_ctl = reg & 0xf; | |
625 | reg = vt1211_read8(data, VT1211_REG_PWM_CTL); | |
626 | data->pwm_ctl[0] = reg & 0xf; | |
627 | data->pwm_ctl[1] = (reg >> 4) & 0xf; | |
628 | switch (val) { | |
629 | case 0: | |
630 | data->pwm_ctl[ix] &= 7; | |
631 | /* disable SmartGuardian if both PWM outputs are | |
632 | * disabled */ | |
633 | if ((data->pwm_ctl[ix ^ 1] & 1) == 0) { | |
634 | data->fan_ctl &= 0xe; | |
635 | } | |
636 | break; | |
637 | case 2: | |
638 | data->pwm_ctl[ix] |= 8; | |
639 | data->fan_ctl |= 1; | |
640 | break; | |
641 | default: | |
642 | count = -EINVAL; | |
643 | dev_warn(dev, "pwm mode %ld not supported. " | |
644 | "Choose one of 0 or 2.\n", val); | |
645 | goto EXIT; | |
646 | } | |
647 | vt1211_write8(data, VT1211_REG_PWM_CTL, | |
648 | ((data->pwm_ctl[1] << 4) | | |
649 | data->pwm_ctl[0])); | |
650 | vt1211_write8(data, VT1211_REG_FAN_DIV, | |
651 | ((data->fan_div[1] << 6) | | |
652 | (data->fan_div[0] << 4) | | |
653 | data->fan_ctl)); | |
654 | break; | |
655 | case SHOW_SET_PWM_FREQ: | |
656 | val = 135000 / SENSORS_LIMIT(val, 135000 >> 7, 135000); | |
657 | /* calculate tmp = log2(val) */ | |
658 | tmp = 0; | |
659 | for (val >>= 1; val > 0; val >>= 1) { | |
660 | tmp++; | |
661 | } | |
662 | /* sync the data cache */ | |
663 | reg = vt1211_read8(data, VT1211_REG_PWM_CLK); | |
664 | data->pwm_clk = (reg & 0xf8) | tmp; | |
665 | vt1211_write8(data, VT1211_REG_PWM_CLK, data->pwm_clk); | |
666 | break; | |
667 | case SHOW_SET_PWM_AUTO_CHANNELS_TEMP: | |
668 | if ((val < 1) || (val > 7)) { | |
669 | count = -EINVAL; | |
670 | dev_warn(dev, "temp channel %ld not supported. " | |
671 | "Choose a value between 1 and 7.\n", val); | |
672 | goto EXIT; | |
673 | } | |
674 | if (!ISTEMP(val - 1, data->uch_config)) { | |
675 | count = -EINVAL; | |
676 | dev_warn(dev, "temp channel %ld is not available.\n", | |
677 | val); | |
678 | goto EXIT; | |
679 | } | |
680 | /* sync the data cache */ | |
681 | reg = vt1211_read8(data, VT1211_REG_PWM_CTL); | |
682 | data->pwm_ctl[0] = reg & 0xf; | |
683 | data->pwm_ctl[1] = (reg >> 4) & 0xf; | |
684 | data->pwm_ctl[ix] = (data->pwm_ctl[ix] & 8) | (val - 1); | |
685 | vt1211_write8(data, VT1211_REG_PWM_CTL, | |
686 | ((data->pwm_ctl[1] << 4) | data->pwm_ctl[0])); | |
687 | break; | |
688 | default: | |
689 | dev_dbg(dev, "Unknown attr fetch (%d)\n", fn); | |
690 | } | |
691 | ||
692 | EXIT: | |
693 | mutex_unlock(&data->update_lock); | |
694 | return count; | |
695 | } | |
696 | ||
697 | /* --------------------------------------------------------------------- | |
698 | * PWM auto point definitions | |
699 | * ix = [0-1] | |
700 | * ap = [0-3] | |
701 | * --------------------------------------------------------------------- */ | |
702 | ||
703 | /* | |
704 | * pwm[ix+1]_auto_point[ap+1]_temp mapping table: | |
705 | * Note that there is only a single set of temp auto points that controls both | |
706 | * PWM controllers. We still create 2 sets of sysfs files to make it look | |
707 | * more consistent even though they map to the same registers. | |
708 | * | |
709 | * ix ap : description | |
710 | * ------------------- | |
711 | * 0 0 : pwm1/2 off temperature (pwm_auto_temp[0]) | |
712 | * 0 1 : pwm1/2 low speed temperature (pwm_auto_temp[1]) | |
713 | * 0 2 : pwm1/2 high speed temperature (pwm_auto_temp[2]) | |
714 | * 0 3 : pwm1/2 full speed temperature (pwm_auto_temp[3]) | |
715 | * 1 0 : pwm1/2 off temperature (pwm_auto_temp[0]) | |
716 | * 1 1 : pwm1/2 low speed temperature (pwm_auto_temp[1]) | |
717 | * 1 2 : pwm1/2 high speed temperature (pwm_auto_temp[2]) | |
718 | * 1 3 : pwm1/2 full speed temperature (pwm_auto_temp[3]) | |
719 | */ | |
720 | ||
721 | static ssize_t show_pwm_auto_point_temp(struct device *dev, | |
722 | struct device_attribute *attr, | |
723 | char *buf) | |
724 | { | |
725 | struct vt1211_data *data = vt1211_update_device(dev); | |
726 | struct sensor_device_attribute_2 *sensor_attr_2 = | |
727 | to_sensor_dev_attr_2(attr); | |
728 | int ix = sensor_attr_2->index; | |
729 | int ap = sensor_attr_2->nr; | |
730 | ||
731 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->pwm_ctl[ix] & 7, | |
732 | data->pwm_auto_temp[ap])); | |
733 | } | |
734 | ||
735 | static ssize_t set_pwm_auto_point_temp(struct device *dev, | |
736 | struct device_attribute *attr, | |
737 | const char *buf, size_t count) | |
738 | { | |
739 | struct vt1211_data *data = dev_get_drvdata(dev); | |
740 | struct sensor_device_attribute_2 *sensor_attr_2 = | |
741 | to_sensor_dev_attr_2(attr); | |
742 | int ix = sensor_attr_2->index; | |
743 | int ap = sensor_attr_2->nr; | |
744 | long val = simple_strtol(buf, NULL, 10); | |
745 | int reg; | |
746 | ||
747 | mutex_lock(&data->update_lock); | |
748 | ||
749 | /* sync the data cache */ | |
750 | reg = vt1211_read8(data, VT1211_REG_PWM_CTL); | |
751 | data->pwm_ctl[0] = reg & 0xf; | |
752 | data->pwm_ctl[1] = (reg >> 4) & 0xf; | |
753 | ||
754 | data->pwm_auto_temp[ap] = TEMP_TO_REG(data->pwm_ctl[ix] & 7, val); | |
755 | vt1211_write8(data, VT1211_REG_PWM_AUTO_TEMP(ap), | |
756 | data->pwm_auto_temp[ap]); | |
757 | mutex_unlock(&data->update_lock); | |
758 | ||
759 | return count; | |
760 | } | |
761 | ||
762 | /* | |
763 | * pwm[ix+1]_auto_point[ap+1]_pwm mapping table: | |
764 | * Note that the PWM auto points 0 & 3 are hard-wired in the VT1211 and can't | |
765 | * be changed. | |
766 | * | |
767 | * ix ap : description | |
768 | * ------------------- | |
769 | * 0 0 : pwm1 off (pwm_auto_pwm[0][0], hard-wired to 0) | |
770 | * 0 1 : pwm1 low speed duty cycle (pwm_auto_pwm[0][1]) | |
771 | * 0 2 : pwm1 high speed duty cycle (pwm_auto_pwm[0][2]) | |
772 | * 0 3 : pwm1 full speed (pwm_auto_pwm[0][3], hard-wired to 255) | |
773 | * 1 0 : pwm2 off (pwm_auto_pwm[1][0], hard-wired to 0) | |
774 | * 1 1 : pwm2 low speed duty cycle (pwm_auto_pwm[1][1]) | |
775 | * 1 2 : pwm2 high speed duty cycle (pwm_auto_pwm[1][2]) | |
776 | * 1 3 : pwm2 full speed (pwm_auto_pwm[1][3], hard-wired to 255) | |
777 | */ | |
778 | ||
779 | static ssize_t show_pwm_auto_point_pwm(struct device *dev, | |
780 | struct device_attribute *attr, | |
781 | char *buf) | |
782 | { | |
783 | struct vt1211_data *data = vt1211_update_device(dev); | |
784 | struct sensor_device_attribute_2 *sensor_attr_2 = | |
785 | to_sensor_dev_attr_2(attr); | |
786 | int ix = sensor_attr_2->index; | |
787 | int ap = sensor_attr_2->nr; | |
788 | ||
789 | return sprintf(buf, "%d\n", data->pwm_auto_pwm[ix][ap]); | |
790 | } | |
791 | ||
792 | static ssize_t set_pwm_auto_point_pwm(struct device *dev, | |
793 | struct device_attribute *attr, | |
794 | const char *buf, size_t count) | |
795 | { | |
796 | struct vt1211_data *data = dev_get_drvdata(dev); | |
797 | struct sensor_device_attribute_2 *sensor_attr_2 = | |
798 | to_sensor_dev_attr_2(attr); | |
799 | int ix = sensor_attr_2->index; | |
800 | int ap = sensor_attr_2->nr; | |
801 | long val = simple_strtol(buf, NULL, 10); | |
802 | ||
803 | if ((val < 0) || (val > 255)) { | |
804 | dev_err(dev, "pwm value %ld is out of range. " | |
898eb71c | 805 | "Choose a value between 0 and 255.\n" , val); |
ab41319e JH |
806 | return -EINVAL; |
807 | } | |
808 | ||
809 | mutex_lock(&data->update_lock); | |
810 | data->pwm_auto_pwm[ix][ap] = val; | |
811 | vt1211_write8(data, VT1211_REG_PWM_AUTO_PWM(ix, ap), | |
812 | data->pwm_auto_pwm[ix][ap]); | |
813 | mutex_unlock(&data->update_lock); | |
814 | ||
815 | return count; | |
816 | } | |
817 | ||
818 | /* --------------------------------------------------------------------- | |
819 | * Miscellaneous sysfs interfaces (VRM, VID, name, and (legacy) alarms) | |
820 | * --------------------------------------------------------------------- */ | |
821 | ||
822 | static ssize_t show_vrm(struct device *dev, struct device_attribute *attr, | |
823 | char *buf) | |
824 | { | |
825 | struct vt1211_data *data = dev_get_drvdata(dev); | |
826 | ||
827 | return sprintf(buf, "%d\n", data->vrm); | |
828 | } | |
829 | ||
830 | static ssize_t set_vrm(struct device *dev, struct device_attribute *attr, | |
831 | const char *buf, size_t count) | |
832 | { | |
833 | struct vt1211_data *data = dev_get_drvdata(dev); | |
834 | long val = simple_strtol(buf, NULL, 10); | |
835 | ||
836 | data->vrm = val; | |
837 | ||
838 | return count; | |
839 | } | |
840 | ||
841 | static ssize_t show_vid(struct device *dev, struct device_attribute *attr, | |
842 | char *buf) | |
843 | { | |
844 | struct vt1211_data *data = dev_get_drvdata(dev); | |
845 | ||
846 | return sprintf(buf, "%d\n", vid_from_reg(data->vid, data->vrm)); | |
847 | } | |
848 | ||
849 | static ssize_t show_name(struct device *dev, | |
850 | struct device_attribute *attr, char *buf) | |
851 | { | |
852 | struct vt1211_data *data = dev_get_drvdata(dev); | |
853 | ||
854 | return sprintf(buf, "%s\n", data->name); | |
855 | } | |
856 | ||
857 | static ssize_t show_alarms(struct device *dev, | |
858 | struct device_attribute *attr, char *buf) | |
859 | { | |
860 | struct vt1211_data *data = vt1211_update_device(dev); | |
861 | ||
862 | return sprintf(buf, "%d\n", data->alarms); | |
863 | } | |
864 | ||
865 | /* --------------------------------------------------------------------- | |
866 | * Device attribute structs | |
867 | * --------------------------------------------------------------------- */ | |
868 | ||
869 | #define SENSOR_ATTR_IN_INPUT(ix) \ | |
870 | SENSOR_ATTR_2(in##ix##_input, S_IRUGO, \ | |
871 | show_in, NULL, SHOW_IN_INPUT, ix) | |
872 | ||
873 | static struct sensor_device_attribute_2 vt1211_sysfs_in_input[] = { | |
874 | SENSOR_ATTR_IN_INPUT(0), | |
875 | SENSOR_ATTR_IN_INPUT(1), | |
876 | SENSOR_ATTR_IN_INPUT(2), | |
877 | SENSOR_ATTR_IN_INPUT(3), | |
878 | SENSOR_ATTR_IN_INPUT(4), | |
879 | SENSOR_ATTR_IN_INPUT(5), | |
880 | }; | |
881 | ||
882 | #define SENSOR_ATTR_IN_MIN(ix) \ | |
883 | SENSOR_ATTR_2(in##ix##_min, S_IRUGO | S_IWUSR, \ | |
884 | show_in, set_in, SHOW_SET_IN_MIN, ix) | |
885 | ||
886 | static struct sensor_device_attribute_2 vt1211_sysfs_in_min[] = { | |
887 | SENSOR_ATTR_IN_MIN(0), | |
888 | SENSOR_ATTR_IN_MIN(1), | |
889 | SENSOR_ATTR_IN_MIN(2), | |
890 | SENSOR_ATTR_IN_MIN(3), | |
891 | SENSOR_ATTR_IN_MIN(4), | |
892 | SENSOR_ATTR_IN_MIN(5), | |
893 | }; | |
894 | ||
895 | #define SENSOR_ATTR_IN_MAX(ix) \ | |
896 | SENSOR_ATTR_2(in##ix##_max, S_IRUGO | S_IWUSR, \ | |
897 | show_in, set_in, SHOW_SET_IN_MAX, ix) | |
898 | ||
899 | static struct sensor_device_attribute_2 vt1211_sysfs_in_max[] = { | |
900 | SENSOR_ATTR_IN_MAX(0), | |
901 | SENSOR_ATTR_IN_MAX(1), | |
902 | SENSOR_ATTR_IN_MAX(2), | |
903 | SENSOR_ATTR_IN_MAX(3), | |
904 | SENSOR_ATTR_IN_MAX(4), | |
905 | SENSOR_ATTR_IN_MAX(5), | |
906 | }; | |
907 | ||
908 | #define SENSOR_ATTR_IN_ALARM(ix) \ | |
909 | SENSOR_ATTR_2(in##ix##_alarm, S_IRUGO, \ | |
910 | show_in, NULL, SHOW_IN_ALARM, ix) | |
911 | ||
912 | static struct sensor_device_attribute_2 vt1211_sysfs_in_alarm[] = { | |
913 | SENSOR_ATTR_IN_ALARM(0), | |
914 | SENSOR_ATTR_IN_ALARM(1), | |
915 | SENSOR_ATTR_IN_ALARM(2), | |
916 | SENSOR_ATTR_IN_ALARM(3), | |
917 | SENSOR_ATTR_IN_ALARM(4), | |
918 | SENSOR_ATTR_IN_ALARM(5), | |
919 | }; | |
920 | ||
921 | #define SENSOR_ATTR_TEMP_INPUT(ix) \ | |
922 | SENSOR_ATTR_2(temp##ix##_input, S_IRUGO, \ | |
923 | show_temp, NULL, SHOW_TEMP_INPUT, ix-1) | |
924 | ||
925 | static struct sensor_device_attribute_2 vt1211_sysfs_temp_input[] = { | |
926 | SENSOR_ATTR_TEMP_INPUT(1), | |
927 | SENSOR_ATTR_TEMP_INPUT(2), | |
928 | SENSOR_ATTR_TEMP_INPUT(3), | |
929 | SENSOR_ATTR_TEMP_INPUT(4), | |
930 | SENSOR_ATTR_TEMP_INPUT(5), | |
931 | SENSOR_ATTR_TEMP_INPUT(6), | |
932 | SENSOR_ATTR_TEMP_INPUT(7), | |
933 | }; | |
934 | ||
935 | #define SENSOR_ATTR_TEMP_MAX(ix) \ | |
936 | SENSOR_ATTR_2(temp##ix##_max, S_IRUGO | S_IWUSR, \ | |
937 | show_temp, set_temp, SHOW_SET_TEMP_MAX, ix-1) | |
938 | ||
939 | static struct sensor_device_attribute_2 vt1211_sysfs_temp_max[] = { | |
940 | SENSOR_ATTR_TEMP_MAX(1), | |
941 | SENSOR_ATTR_TEMP_MAX(2), | |
942 | SENSOR_ATTR_TEMP_MAX(3), | |
943 | SENSOR_ATTR_TEMP_MAX(4), | |
944 | SENSOR_ATTR_TEMP_MAX(5), | |
945 | SENSOR_ATTR_TEMP_MAX(6), | |
946 | SENSOR_ATTR_TEMP_MAX(7), | |
947 | }; | |
948 | ||
949 | #define SENSOR_ATTR_TEMP_MAX_HYST(ix) \ | |
950 | SENSOR_ATTR_2(temp##ix##_max_hyst, S_IRUGO | S_IWUSR, \ | |
951 | show_temp, set_temp, SHOW_SET_TEMP_MAX_HYST, ix-1) | |
952 | ||
953 | static struct sensor_device_attribute_2 vt1211_sysfs_temp_max_hyst[] = { | |
954 | SENSOR_ATTR_TEMP_MAX_HYST(1), | |
955 | SENSOR_ATTR_TEMP_MAX_HYST(2), | |
956 | SENSOR_ATTR_TEMP_MAX_HYST(3), | |
957 | SENSOR_ATTR_TEMP_MAX_HYST(4), | |
958 | SENSOR_ATTR_TEMP_MAX_HYST(5), | |
959 | SENSOR_ATTR_TEMP_MAX_HYST(6), | |
960 | SENSOR_ATTR_TEMP_MAX_HYST(7), | |
961 | }; | |
962 | ||
963 | #define SENSOR_ATTR_TEMP_ALARM(ix) \ | |
964 | SENSOR_ATTR_2(temp##ix##_alarm, S_IRUGO, \ | |
965 | show_temp, NULL, SHOW_TEMP_ALARM, ix-1) | |
966 | ||
967 | static struct sensor_device_attribute_2 vt1211_sysfs_temp_alarm[] = { | |
968 | SENSOR_ATTR_TEMP_ALARM(1), | |
969 | SENSOR_ATTR_TEMP_ALARM(2), | |
970 | SENSOR_ATTR_TEMP_ALARM(3), | |
971 | SENSOR_ATTR_TEMP_ALARM(4), | |
972 | SENSOR_ATTR_TEMP_ALARM(5), | |
973 | SENSOR_ATTR_TEMP_ALARM(6), | |
974 | SENSOR_ATTR_TEMP_ALARM(7), | |
975 | }; | |
976 | ||
977 | #define SENSOR_ATTR_FAN(ix) \ | |
978 | SENSOR_ATTR_2(fan##ix##_input, S_IRUGO, \ | |
979 | show_fan, NULL, SHOW_FAN_INPUT, ix-1), \ | |
980 | SENSOR_ATTR_2(fan##ix##_min, S_IRUGO | S_IWUSR, \ | |
981 | show_fan, set_fan, SHOW_SET_FAN_MIN, ix-1), \ | |
982 | SENSOR_ATTR_2(fan##ix##_div, S_IRUGO | S_IWUSR, \ | |
983 | show_fan, set_fan, SHOW_SET_FAN_DIV, ix-1), \ | |
984 | SENSOR_ATTR_2(fan##ix##_alarm, S_IRUGO, \ | |
985 | show_fan, NULL, SHOW_FAN_ALARM, ix-1) | |
986 | ||
987 | #define SENSOR_ATTR_PWM(ix) \ | |
988 | SENSOR_ATTR_2(pwm##ix, S_IRUGO, \ | |
989 | show_pwm, NULL, SHOW_PWM, ix-1), \ | |
990 | SENSOR_ATTR_2(pwm##ix##_enable, S_IRUGO | S_IWUSR, \ | |
991 | show_pwm, set_pwm, SHOW_SET_PWM_ENABLE, ix-1), \ | |
992 | SENSOR_ATTR_2(pwm##ix##_auto_channels_temp, S_IRUGO | S_IWUSR, \ | |
993 | show_pwm, set_pwm, SHOW_SET_PWM_AUTO_CHANNELS_TEMP, ix-1) | |
994 | ||
995 | #define SENSOR_ATTR_PWM_FREQ(ix) \ | |
996 | SENSOR_ATTR_2(pwm##ix##_freq, S_IRUGO | S_IWUSR, \ | |
997 | show_pwm, set_pwm, SHOW_SET_PWM_FREQ, ix-1) | |
998 | ||
999 | #define SENSOR_ATTR_PWM_FREQ_RO(ix) \ | |
1000 | SENSOR_ATTR_2(pwm##ix##_freq, S_IRUGO, \ | |
1001 | show_pwm, NULL, SHOW_SET_PWM_FREQ, ix-1) | |
1002 | ||
1003 | #define SENSOR_ATTR_PWM_AUTO_POINT_TEMP(ix, ap) \ | |
1004 | SENSOR_ATTR_2(pwm##ix##_auto_point##ap##_temp, S_IRUGO | S_IWUSR, \ | |
1005 | show_pwm_auto_point_temp, set_pwm_auto_point_temp, \ | |
1006 | ap-1, ix-1) | |
1007 | ||
1008 | #define SENSOR_ATTR_PWM_AUTO_POINT_TEMP_RO(ix, ap) \ | |
1009 | SENSOR_ATTR_2(pwm##ix##_auto_point##ap##_temp, S_IRUGO, \ | |
1010 | show_pwm_auto_point_temp, NULL, \ | |
1011 | ap-1, ix-1) | |
1012 | ||
1013 | #define SENSOR_ATTR_PWM_AUTO_POINT_PWM(ix, ap) \ | |
1014 | SENSOR_ATTR_2(pwm##ix##_auto_point##ap##_pwm, S_IRUGO | S_IWUSR, \ | |
1015 | show_pwm_auto_point_pwm, set_pwm_auto_point_pwm, \ | |
1016 | ap-1, ix-1) | |
1017 | ||
1018 | #define SENSOR_ATTR_PWM_AUTO_POINT_PWM_RO(ix, ap) \ | |
1019 | SENSOR_ATTR_2(pwm##ix##_auto_point##ap##_pwm, S_IRUGO, \ | |
1020 | show_pwm_auto_point_pwm, NULL, \ | |
1021 | ap-1, ix-1) | |
1022 | ||
1023 | static struct sensor_device_attribute_2 vt1211_sysfs_fan_pwm[] = { | |
1024 | SENSOR_ATTR_FAN(1), | |
1025 | SENSOR_ATTR_FAN(2), | |
1026 | SENSOR_ATTR_PWM(1), | |
1027 | SENSOR_ATTR_PWM(2), | |
1028 | SENSOR_ATTR_PWM_FREQ(1), | |
1029 | SENSOR_ATTR_PWM_FREQ_RO(2), | |
1030 | SENSOR_ATTR_PWM_AUTO_POINT_TEMP(1, 1), | |
1031 | SENSOR_ATTR_PWM_AUTO_POINT_TEMP(1, 2), | |
1032 | SENSOR_ATTR_PWM_AUTO_POINT_TEMP(1, 3), | |
1033 | SENSOR_ATTR_PWM_AUTO_POINT_TEMP(1, 4), | |
1034 | SENSOR_ATTR_PWM_AUTO_POINT_TEMP_RO(2, 1), | |
1035 | SENSOR_ATTR_PWM_AUTO_POINT_TEMP_RO(2, 2), | |
1036 | SENSOR_ATTR_PWM_AUTO_POINT_TEMP_RO(2, 3), | |
1037 | SENSOR_ATTR_PWM_AUTO_POINT_TEMP_RO(2, 4), | |
1038 | SENSOR_ATTR_PWM_AUTO_POINT_PWM_RO(1, 1), | |
1039 | SENSOR_ATTR_PWM_AUTO_POINT_PWM(1, 2), | |
1040 | SENSOR_ATTR_PWM_AUTO_POINT_PWM(1, 3), | |
1041 | SENSOR_ATTR_PWM_AUTO_POINT_PWM_RO(1, 4), | |
1042 | SENSOR_ATTR_PWM_AUTO_POINT_PWM_RO(2, 1), | |
1043 | SENSOR_ATTR_PWM_AUTO_POINT_PWM(2, 2), | |
1044 | SENSOR_ATTR_PWM_AUTO_POINT_PWM(2, 3), | |
1045 | SENSOR_ATTR_PWM_AUTO_POINT_PWM_RO(2, 4), | |
1046 | }; | |
1047 | ||
1048 | static struct device_attribute vt1211_sysfs_misc[] = { | |
1049 | __ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm, set_vrm), | |
1050 | __ATTR(cpu0_vid, S_IRUGO, show_vid, NULL), | |
1051 | __ATTR(name, S_IRUGO, show_name, NULL), | |
1052 | __ATTR(alarms, S_IRUGO, show_alarms, NULL), | |
1053 | }; | |
1054 | ||
1055 | /* --------------------------------------------------------------------- | |
1056 | * Device registration and initialization | |
1057 | * --------------------------------------------------------------------- */ | |
1058 | ||
1059 | static void __devinit vt1211_init_device(struct vt1211_data *data) | |
1060 | { | |
1061 | /* set VRM */ | |
1062 | data->vrm = vid_which_vrm(); | |
1063 | ||
1064 | /* Read (and initialize) UCH config */ | |
1065 | data->uch_config = vt1211_read8(data, VT1211_REG_UCH_CONFIG); | |
1066 | if (uch_config > -1) { | |
1067 | data->uch_config = (data->uch_config & 0x83) | | |
1068 | (uch_config << 2); | |
1069 | vt1211_write8(data, VT1211_REG_UCH_CONFIG, data->uch_config); | |
1070 | } | |
1071 | ||
1072 | /* Initialize the interrupt mode (if request at module load time). | |
1073 | * The VT1211 implements 3 different modes for clearing interrupts: | |
1074 | * 0: Clear INT when status register is read. Regenerate INT as long | |
1075 | * as temp stays above hysteresis limit. | |
1076 | * 1: Clear INT when status register is read. DON'T regenerate INT | |
1077 | * until temp falls below hysteresis limit and exceeds hot limit | |
1078 | * again. | |
1079 | * 2: Clear INT when temp falls below max limit. | |
1080 | * | |
1081 | * The driver only allows to force mode 0 since that's the only one | |
1082 | * that makes sense for 'sensors' */ | |
1083 | if (int_mode == 0) { | |
1084 | vt1211_write8(data, VT1211_REG_TEMP1_CONFIG, 0); | |
1085 | vt1211_write8(data, VT1211_REG_TEMP2_CONFIG, 0); | |
1086 | } | |
1087 | ||
1088 | /* Fill in some hard wired values into our data struct */ | |
1089 | data->pwm_auto_pwm[0][3] = 255; | |
1090 | data->pwm_auto_pwm[1][3] = 255; | |
1091 | } | |
1092 | ||
1093 | static void vt1211_remove_sysfs(struct platform_device *pdev) | |
1094 | { | |
1095 | struct device *dev = &pdev->dev; | |
1096 | int i; | |
1097 | ||
1098 | for (i = 0; i < ARRAY_SIZE(vt1211_sysfs_in_input); i++) { | |
1099 | device_remove_file(dev, | |
1100 | &vt1211_sysfs_in_input[i].dev_attr); | |
1101 | device_remove_file(dev, | |
1102 | &vt1211_sysfs_in_min[i].dev_attr); | |
1103 | device_remove_file(dev, | |
1104 | &vt1211_sysfs_in_max[i].dev_attr); | |
1105 | device_remove_file(dev, | |
1106 | &vt1211_sysfs_in_alarm[i].dev_attr); | |
1107 | } | |
1108 | for (i = 0; i < ARRAY_SIZE(vt1211_sysfs_temp_input); i++) { | |
1109 | device_remove_file(dev, | |
1110 | &vt1211_sysfs_temp_input[i].dev_attr); | |
1111 | device_remove_file(dev, | |
1112 | &vt1211_sysfs_temp_max[i].dev_attr); | |
1113 | device_remove_file(dev, | |
1114 | &vt1211_sysfs_temp_max_hyst[i].dev_attr); | |
1115 | device_remove_file(dev, | |
1116 | &vt1211_sysfs_temp_alarm[i].dev_attr); | |
1117 | } | |
1118 | for (i = 0; i < ARRAY_SIZE(vt1211_sysfs_fan_pwm); i++) { | |
1119 | device_remove_file(dev, | |
1120 | &vt1211_sysfs_fan_pwm[i].dev_attr); | |
1121 | } | |
1122 | for (i = 0; i < ARRAY_SIZE(vt1211_sysfs_misc); i++) { | |
1123 | device_remove_file(dev, &vt1211_sysfs_misc[i]); | |
1124 | } | |
1125 | } | |
1126 | ||
1127 | static int __devinit vt1211_probe(struct platform_device *pdev) | |
1128 | { | |
1129 | struct device *dev = &pdev->dev; | |
1130 | struct vt1211_data *data; | |
1131 | struct resource *res; | |
1132 | int i, err; | |
1133 | ||
1134 | if (!(data = kzalloc(sizeof(struct vt1211_data), GFP_KERNEL))) { | |
1135 | err = -ENOMEM; | |
1136 | dev_err(dev, "Out of memory\n"); | |
1137 | goto EXIT; | |
1138 | } | |
1139 | ||
1140 | res = platform_get_resource(pdev, IORESOURCE_IO, 0); | |
86855b0c | 1141 | if (!request_region(res->start, resource_size(res), DRVNAME)) { |
ce7ee4e8 JD |
1142 | err = -EBUSY; |
1143 | dev_err(dev, "Failed to request region 0x%lx-0x%lx\n", | |
1144 | (unsigned long)res->start, (unsigned long)res->end); | |
1145 | goto EXIT_KFREE; | |
1146 | } | |
ab41319e JH |
1147 | data->addr = res->start; |
1148 | data->name = DRVNAME; | |
1149 | mutex_init(&data->update_lock); | |
1150 | ||
1151 | platform_set_drvdata(pdev, data); | |
1152 | ||
1153 | /* Initialize the VT1211 chip */ | |
1154 | vt1211_init_device(data); | |
1155 | ||
1156 | /* Create sysfs interface files */ | |
1157 | for (i = 0; i < ARRAY_SIZE(vt1211_sysfs_in_input); i++) { | |
1158 | if (ISVOLT(i, data->uch_config)) { | |
1159 | if ((err = device_create_file(dev, | |
1160 | &vt1211_sysfs_in_input[i].dev_attr)) || | |
1161 | (err = device_create_file(dev, | |
1162 | &vt1211_sysfs_in_min[i].dev_attr)) || | |
1163 | (err = device_create_file(dev, | |
1164 | &vt1211_sysfs_in_max[i].dev_attr)) || | |
1165 | (err = device_create_file(dev, | |
1166 | &vt1211_sysfs_in_alarm[i].dev_attr))) { | |
1167 | goto EXIT_DEV_REMOVE; | |
1168 | } | |
1169 | } | |
1170 | } | |
1171 | for (i = 0; i < ARRAY_SIZE(vt1211_sysfs_temp_input); i++) { | |
1172 | if (ISTEMP(i, data->uch_config)) { | |
1173 | if ((err = device_create_file(dev, | |
1174 | &vt1211_sysfs_temp_input[i].dev_attr)) || | |
1175 | (err = device_create_file(dev, | |
1176 | &vt1211_sysfs_temp_max[i].dev_attr)) || | |
1177 | (err = device_create_file(dev, | |
1178 | &vt1211_sysfs_temp_max_hyst[i].dev_attr)) || | |
1179 | (err = device_create_file(dev, | |
1180 | &vt1211_sysfs_temp_alarm[i].dev_attr))) { | |
1181 | goto EXIT_DEV_REMOVE; | |
1182 | } | |
1183 | } | |
1184 | } | |
1185 | for (i = 0; i < ARRAY_SIZE(vt1211_sysfs_fan_pwm); i++) { | |
1186 | err = device_create_file(dev, | |
1187 | &vt1211_sysfs_fan_pwm[i].dev_attr); | |
1188 | if (err) { | |
1189 | goto EXIT_DEV_REMOVE; | |
1190 | } | |
1191 | } | |
1192 | for (i = 0; i < ARRAY_SIZE(vt1211_sysfs_misc); i++) { | |
1193 | err = device_create_file(dev, | |
1194 | &vt1211_sysfs_misc[i]); | |
1195 | if (err) { | |
1196 | goto EXIT_DEV_REMOVE; | |
1197 | } | |
1198 | } | |
1199 | ||
1200 | /* Register device */ | |
1beeffe4 TJ |
1201 | data->hwmon_dev = hwmon_device_register(dev); |
1202 | if (IS_ERR(data->hwmon_dev)) { | |
1203 | err = PTR_ERR(data->hwmon_dev); | |
ab41319e JH |
1204 | dev_err(dev, "Class registration failed (%d)\n", err); |
1205 | goto EXIT_DEV_REMOVE_SILENT; | |
1206 | } | |
1207 | ||
1208 | return 0; | |
1209 | ||
1210 | EXIT_DEV_REMOVE: | |
1211 | dev_err(dev, "Sysfs interface creation failed (%d)\n", err); | |
1212 | EXIT_DEV_REMOVE_SILENT: | |
1213 | vt1211_remove_sysfs(pdev); | |
86855b0c | 1214 | release_region(res->start, resource_size(res)); |
ce7ee4e8 | 1215 | EXIT_KFREE: |
ab41319e JH |
1216 | platform_set_drvdata(pdev, NULL); |
1217 | kfree(data); | |
1218 | EXIT: | |
1219 | return err; | |
1220 | } | |
1221 | ||
1222 | static int __devexit vt1211_remove(struct platform_device *pdev) | |
1223 | { | |
1224 | struct vt1211_data *data = platform_get_drvdata(pdev); | |
ce7ee4e8 | 1225 | struct resource *res; |
ab41319e | 1226 | |
1beeffe4 | 1227 | hwmon_device_unregister(data->hwmon_dev); |
ab41319e JH |
1228 | vt1211_remove_sysfs(pdev); |
1229 | platform_set_drvdata(pdev, NULL); | |
1230 | kfree(data); | |
1231 | ||
ce7ee4e8 | 1232 | res = platform_get_resource(pdev, IORESOURCE_IO, 0); |
86855b0c | 1233 | release_region(res->start, resource_size(res)); |
ce7ee4e8 | 1234 | |
ab41319e JH |
1235 | return 0; |
1236 | } | |
1237 | ||
1238 | static struct platform_driver vt1211_driver = { | |
1239 | .driver = { | |
1240 | .owner = THIS_MODULE, | |
1241 | .name = DRVNAME, | |
1242 | }, | |
1243 | .probe = vt1211_probe, | |
1244 | .remove = __devexit_p(vt1211_remove), | |
1245 | }; | |
1246 | ||
1247 | static int __init vt1211_device_add(unsigned short address) | |
1248 | { | |
1249 | struct resource res = { | |
1250 | .start = address, | |
1251 | .end = address + 0x7f, | |
1252 | .flags = IORESOURCE_IO, | |
1253 | }; | |
1254 | int err; | |
1255 | ||
1256 | pdev = platform_device_alloc(DRVNAME, address); | |
1257 | if (!pdev) { | |
1258 | err = -ENOMEM; | |
5ed9ba6b | 1259 | pr_err("Device allocation failed (%d)\n", err); |
ab41319e JH |
1260 | goto EXIT; |
1261 | } | |
1262 | ||
1263 | res.name = pdev->name; | |
b9acb64a JD |
1264 | err = acpi_check_resource_conflict(&res); |
1265 | if (err) | |
18632f84 | 1266 | goto EXIT_DEV_PUT; |
b9acb64a | 1267 | |
ab41319e JH |
1268 | err = platform_device_add_resources(pdev, &res, 1); |
1269 | if (err) { | |
5ed9ba6b | 1270 | pr_err("Device resource addition failed (%d)\n", err); |
ab41319e JH |
1271 | goto EXIT_DEV_PUT; |
1272 | } | |
1273 | ||
1274 | err = platform_device_add(pdev); | |
1275 | if (err) { | |
5ed9ba6b | 1276 | pr_err("Device addition failed (%d)\n", err); |
ab41319e JH |
1277 | goto EXIT_DEV_PUT; |
1278 | } | |
1279 | ||
1280 | return 0; | |
1281 | ||
1282 | EXIT_DEV_PUT: | |
1283 | platform_device_put(pdev); | |
1284 | EXIT: | |
1285 | return err; | |
1286 | } | |
1287 | ||
2219cd81 | 1288 | static int __init vt1211_find(int sio_cip, unsigned short *address) |
ab41319e JH |
1289 | { |
1290 | int err = -ENODEV; | |
67b671bc | 1291 | int devid; |
ab41319e | 1292 | |
2219cd81 | 1293 | superio_enter(sio_cip); |
ab41319e | 1294 | |
67b671bc JD |
1295 | devid = force_id ? force_id : superio_inb(sio_cip, SIO_VT1211_DEVID); |
1296 | if (devid != SIO_VT1211_ID) { | |
ab41319e JH |
1297 | goto EXIT; |
1298 | } | |
1299 | ||
2219cd81 | 1300 | superio_select(sio_cip, SIO_VT1211_LDN_HWMON); |
ab41319e | 1301 | |
2219cd81 | 1302 | if ((superio_inb(sio_cip, SIO_VT1211_ACTIVE) & 1) == 0) { |
5ed9ba6b | 1303 | pr_warn("HW monitor is disabled, skipping\n"); |
ab41319e JH |
1304 | goto EXIT; |
1305 | } | |
1306 | ||
2219cd81 JH |
1307 | *address = ((superio_inb(sio_cip, SIO_VT1211_BADDR) << 8) | |
1308 | (superio_inb(sio_cip, SIO_VT1211_BADDR + 1))) & 0xff00; | |
ab41319e | 1309 | if (*address == 0) { |
5ed9ba6b | 1310 | pr_warn("Base address is not set, skipping\n"); |
ab41319e JH |
1311 | goto EXIT; |
1312 | } | |
1313 | ||
1314 | err = 0; | |
5ed9ba6b JP |
1315 | pr_info("Found VT1211 chip at 0x%04x, revision %u\n", |
1316 | *address, superio_inb(sio_cip, SIO_VT1211_DEVREV)); | |
ab41319e JH |
1317 | |
1318 | EXIT: | |
2219cd81 | 1319 | superio_exit(sio_cip); |
ab41319e JH |
1320 | return err; |
1321 | } | |
1322 | ||
1323 | static int __init vt1211_init(void) | |
1324 | { | |
1325 | int err; | |
1326 | unsigned short address = 0; | |
1327 | ||
2219cd81 JH |
1328 | if ((err = vt1211_find(SIO_REG_CIP1, &address)) && |
1329 | (err = vt1211_find(SIO_REG_CIP2, &address))) { | |
ab41319e JH |
1330 | goto EXIT; |
1331 | } | |
1332 | ||
1333 | if ((uch_config < -1) || (uch_config > 31)) { | |
1334 | err = -EINVAL; | |
5ed9ba6b JP |
1335 | pr_warn("Invalid UCH configuration %d. " |
1336 | "Choose a value between 0 and 31.\n", uch_config); | |
ab41319e JH |
1337 | goto EXIT; |
1338 | } | |
1339 | ||
1340 | if ((int_mode < -1) || (int_mode > 0)) { | |
1341 | err = -EINVAL; | |
5ed9ba6b JP |
1342 | pr_warn("Invalid interrupt mode %d. " |
1343 | "Only mode 0 is supported.\n", int_mode); | |
ab41319e JH |
1344 | goto EXIT; |
1345 | } | |
1346 | ||
1347 | err = platform_driver_register(&vt1211_driver); | |
1348 | if (err) { | |
1349 | goto EXIT; | |
1350 | } | |
1351 | ||
1352 | /* Sets global pdev as a side effect */ | |
1353 | err = vt1211_device_add(address); | |
1354 | if (err) { | |
1355 | goto EXIT_DRV_UNREGISTER; | |
1356 | } | |
1357 | ||
1358 | return 0; | |
1359 | ||
1360 | EXIT_DRV_UNREGISTER: | |
1361 | platform_driver_unregister(&vt1211_driver); | |
1362 | EXIT: | |
1363 | return err; | |
1364 | } | |
1365 | ||
1366 | static void __exit vt1211_exit(void) | |
1367 | { | |
1368 | platform_device_unregister(pdev); | |
1369 | platform_driver_unregister(&vt1211_driver); | |
1370 | } | |
1371 | ||
1372 | MODULE_AUTHOR("Juerg Haefliger <juergh@gmail.com>"); | |
1373 | MODULE_DESCRIPTION("VT1211 sensors"); | |
1374 | MODULE_LICENSE("GPL"); | |
1375 | ||
1376 | module_init(vt1211_init); | |
1377 | module_exit(vt1211_exit); |