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74ba9207 | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
ab41319e JH |
2 | /* |
3 | * vt1211.c - driver for the VIA VT1211 Super-I/O chip integrated hardware | |
4 | * monitoring features | |
5 | * Copyright (C) 2006 Juerg Haefliger <juergh@gmail.com> | |
6 | * | |
7 | * This driver is based on the driver for kernel 2.4 by Mark D. Studebaker | |
8 | * and its port to kernel 2.6 by Lars Ekman. | |
ab41319e JH |
9 | */ |
10 | ||
5ed9ba6b JP |
11 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
12 | ||
ab41319e JH |
13 | #include <linux/module.h> |
14 | #include <linux/init.h> | |
15 | #include <linux/slab.h> | |
16 | #include <linux/jiffies.h> | |
17 | #include <linux/platform_device.h> | |
18 | #include <linux/hwmon.h> | |
19 | #include <linux/hwmon-sysfs.h> | |
20 | #include <linux/hwmon-vid.h> | |
21 | #include <linux/err.h> | |
22 | #include <linux/mutex.h> | |
ce7ee4e8 | 23 | #include <linux/ioport.h> |
b9acb64a | 24 | #include <linux/acpi.h> |
6055fae8 | 25 | #include <linux/io.h> |
ab41319e JH |
26 | |
27 | static int uch_config = -1; | |
28 | module_param(uch_config, int, 0); | |
29 | MODULE_PARM_DESC(uch_config, "Initialize the universal channel configuration"); | |
30 | ||
31 | static int int_mode = -1; | |
32 | module_param(int_mode, int, 0); | |
33 | MODULE_PARM_DESC(int_mode, "Force the temperature interrupt mode"); | |
34 | ||
67b671bc JD |
35 | static unsigned short force_id; |
36 | module_param(force_id, ushort, 0); | |
37 | MODULE_PARM_DESC(force_id, "Override the detected device ID"); | |
38 | ||
ab41319e JH |
39 | static struct platform_device *pdev; |
40 | ||
41 | #define DRVNAME "vt1211" | |
42 | ||
43 | /* --------------------------------------------------------------------- | |
44 | * Registers | |
45 | * | |
46 | * The sensors are defined as follows. | |
47 | * | |
48 | * Sensor Voltage Mode Temp Mode Notes (from the datasheet) | |
49 | * -------- ------------ --------- -------------------------- | |
50 | * Reading 1 temp1 Intel thermal diode | |
51 | * Reading 3 temp2 Internal thermal diode | |
52 | * UCH1/Reading2 in0 temp3 NTC type thermistor | |
53 | * UCH2 in1 temp4 +2.5V | |
54 | * UCH3 in2 temp5 VccP | |
55 | * UCH4 in3 temp6 +5V | |
56 | * UCH5 in4 temp7 +12V | |
57 | * 3.3V in5 Internal VDD (+3.3V) | |
58 | * | |
59 | * --------------------------------------------------------------------- */ | |
60 | ||
61 | /* Voltages (in) numbered 0-5 (ix) */ | |
62 | #define VT1211_REG_IN(ix) (0x21 + (ix)) | |
63 | #define VT1211_REG_IN_MIN(ix) ((ix) == 0 ? 0x3e : 0x2a + 2 * (ix)) | |
64 | #define VT1211_REG_IN_MAX(ix) ((ix) == 0 ? 0x3d : 0x29 + 2 * (ix)) | |
65 | ||
66 | /* Temperatures (temp) numbered 0-6 (ix) */ | |
67 | static u8 regtemp[] = {0x1f, 0x20, 0x21, 0x22, 0x23, 0x24, 0x25}; | |
68 | static u8 regtempmax[] = {0x39, 0x1d, 0x3d, 0x2b, 0x2d, 0x2f, 0x31}; | |
69 | static u8 regtemphyst[] = {0x3a, 0x1e, 0x3e, 0x2c, 0x2e, 0x30, 0x32}; | |
70 | ||
71 | /* Fans numbered 0-1 (ix) */ | |
72 | #define VT1211_REG_FAN(ix) (0x29 + (ix)) | |
73 | #define VT1211_REG_FAN_MIN(ix) (0x3b + (ix)) | |
74 | #define VT1211_REG_FAN_DIV 0x47 | |
75 | ||
76 | /* PWMs numbered 0-1 (ix) */ | |
77 | /* Auto points numbered 0-3 (ap) */ | |
78 | #define VT1211_REG_PWM(ix) (0x60 + (ix)) | |
79 | #define VT1211_REG_PWM_CLK 0x50 | |
80 | #define VT1211_REG_PWM_CTL 0x51 | |
81 | #define VT1211_REG_PWM_AUTO_TEMP(ap) (0x55 - (ap)) | |
82 | #define VT1211_REG_PWM_AUTO_PWM(ix, ap) (0x58 + 2 * (ix) - (ap)) | |
83 | ||
84 | /* Miscellaneous registers */ | |
85 | #define VT1211_REG_CONFIG 0x40 | |
86 | #define VT1211_REG_ALARM1 0x41 | |
87 | #define VT1211_REG_ALARM2 0x42 | |
88 | #define VT1211_REG_VID 0x45 | |
89 | #define VT1211_REG_UCH_CONFIG 0x4a | |
90 | #define VT1211_REG_TEMP1_CONFIG 0x4b | |
91 | #define VT1211_REG_TEMP2_CONFIG 0x4c | |
92 | ||
93 | /* In, temp & fan alarm bits */ | |
94 | static const u8 bitalarmin[] = {11, 0, 1, 3, 8, 2, 9}; | |
95 | static const u8 bitalarmtemp[] = {4, 15, 11, 0, 1, 3, 8}; | |
96 | static const u8 bitalarmfan[] = {6, 7}; | |
97 | ||
98 | /* --------------------------------------------------------------------- | |
99 | * Data structures and manipulation thereof | |
100 | * --------------------------------------------------------------------- */ | |
101 | ||
102 | struct vt1211_data { | |
103 | unsigned short addr; | |
104 | const char *name; | |
1beeffe4 | 105 | struct device *hwmon_dev; |
ab41319e JH |
106 | |
107 | struct mutex update_lock; | |
108 | char valid; /* !=0 if following fields are valid */ | |
109 | unsigned long last_updated; /* In jiffies */ | |
110 | ||
111 | /* Register values */ | |
112 | u8 in[6]; | |
113 | u8 in_max[6]; | |
114 | u8 in_min[6]; | |
115 | u8 temp[7]; | |
116 | u8 temp_max[7]; | |
117 | u8 temp_hyst[7]; | |
118 | u8 fan[2]; | |
119 | u8 fan_min[2]; | |
120 | u8 fan_div[2]; | |
121 | u8 fan_ctl; | |
122 | u8 pwm[2]; | |
123 | u8 pwm_ctl[2]; | |
124 | u8 pwm_clk; | |
125 | u8 pwm_auto_temp[4]; | |
126 | u8 pwm_auto_pwm[2][4]; | |
127 | u8 vid; /* Read once at init time */ | |
128 | u8 vrm; | |
129 | u8 uch_config; /* Read once at init time */ | |
130 | u16 alarms; | |
131 | }; | |
132 | ||
133 | /* ix = [0-5] */ | |
134 | #define ISVOLT(ix, uch_config) ((ix) > 4 ? 1 : \ | |
135 | !(((uch_config) >> ((ix) + 2)) & 1)) | |
136 | ||
137 | /* ix = [0-6] */ | |
138 | #define ISTEMP(ix, uch_config) ((ix) < 2 ? 1 : \ | |
139 | ((uch_config) >> (ix)) & 1) | |
140 | ||
b162c033 GR |
141 | /* |
142 | * in5 (ix = 5) is special. It's the internal 3.3V so it's scaled in the | |
143 | * driver according to the VT1211 BIOS porting guide | |
144 | */ | |
ab41319e JH |
145 | #define IN_FROM_REG(ix, reg) ((reg) < 3 ? 0 : (ix) == 5 ? \ |
146 | (((reg) - 3) * 15882 + 479) / 958 : \ | |
147 | (((reg) - 3) * 10000 + 479) / 958) | |
2a844c14 | 148 | #define IN_TO_REG(ix, val) (clamp_val((ix) == 5 ? \ |
ab41319e JH |
149 | ((val) * 958 + 7941) / 15882 + 3 : \ |
150 | ((val) * 958 + 5000) / 10000 + 3, 0, 255)) | |
151 | ||
b162c033 GR |
152 | /* |
153 | * temp1 (ix = 0) is an intel thermal diode which is scaled in user space. | |
154 | * temp2 (ix = 1) is the internal temp diode so it's scaled in the driver | |
155 | * according to some measurements that I took on an EPIA M10000. | |
156 | * temp3-7 are thermistor based so the driver returns the voltage measured at | |
157 | * the pin (range 0V - 2.2V). | |
158 | */ | |
ab41319e JH |
159 | #define TEMP_FROM_REG(ix, reg) ((ix) == 0 ? (reg) * 1000 : \ |
160 | (ix) == 1 ? (reg) < 51 ? 0 : \ | |
161 | ((reg) - 51) * 1000 : \ | |
162 | ((253 - (reg)) * 2200 + 105) / 210) | |
2a844c14 | 163 | #define TEMP_TO_REG(ix, val) clamp_val( \ |
ab41319e JH |
164 | ((ix) == 0 ? ((val) + 500) / 1000 : \ |
165 | (ix) == 1 ? ((val) + 500) / 1000 + 51 : \ | |
166 | 253 - ((val) * 210 + 1100) / 2200), 0, 255) | |
167 | ||
168 | #define DIV_FROM_REG(reg) (1 << (reg)) | |
169 | ||
170 | #define RPM_FROM_REG(reg, div) (((reg) == 0) || ((reg) == 255) ? 0 : \ | |
171 | 1310720 / (reg) / DIV_FROM_REG(div)) | |
172 | #define RPM_TO_REG(val, div) ((val) == 0 ? 255 : \ | |
2a844c14 | 173 | clamp_val((1310720 / (val) / \ |
ab41319e JH |
174 | DIV_FROM_REG(div)), 1, 254)) |
175 | ||
176 | /* --------------------------------------------------------------------- | |
177 | * Super-I/O constants and functions | |
178 | * --------------------------------------------------------------------- */ | |
179 | ||
b162c033 GR |
180 | /* |
181 | * Configuration index port registers | |
182 | * The vt1211 can live at 2 different addresses so we need to probe both | |
183 | */ | |
2219cd81 JH |
184 | #define SIO_REG_CIP1 0x2e |
185 | #define SIO_REG_CIP2 0x4e | |
ab41319e JH |
186 | |
187 | /* Configuration registers */ | |
188 | #define SIO_VT1211_LDN 0x07 /* logical device number */ | |
189 | #define SIO_VT1211_DEVID 0x20 /* device ID */ | |
190 | #define SIO_VT1211_DEVREV 0x21 /* device revision */ | |
191 | #define SIO_VT1211_ACTIVE 0x30 /* HW monitor active */ | |
192 | #define SIO_VT1211_BADDR 0x60 /* base I/O address */ | |
193 | #define SIO_VT1211_ID 0x3c /* VT1211 device ID */ | |
194 | ||
195 | /* VT1211 logical device numbers */ | |
196 | #define SIO_VT1211_LDN_HWMON 0x0b /* HW monitor */ | |
197 | ||
2219cd81 | 198 | static inline void superio_outb(int sio_cip, int reg, int val) |
ab41319e | 199 | { |
2219cd81 JH |
200 | outb(reg, sio_cip); |
201 | outb(val, sio_cip + 1); | |
ab41319e JH |
202 | } |
203 | ||
2219cd81 | 204 | static inline int superio_inb(int sio_cip, int reg) |
ab41319e | 205 | { |
2219cd81 JH |
206 | outb(reg, sio_cip); |
207 | return inb(sio_cip + 1); | |
ab41319e JH |
208 | } |
209 | ||
2219cd81 | 210 | static inline void superio_select(int sio_cip, int ldn) |
ab41319e | 211 | { |
2219cd81 JH |
212 | outb(SIO_VT1211_LDN, sio_cip); |
213 | outb(ldn, sio_cip + 1); | |
ab41319e JH |
214 | } |
215 | ||
14b97ba5 | 216 | static inline int superio_enter(int sio_cip) |
ab41319e | 217 | { |
14b97ba5 GR |
218 | if (!request_muxed_region(sio_cip, 2, DRVNAME)) |
219 | return -EBUSY; | |
220 | ||
2219cd81 JH |
221 | outb(0x87, sio_cip); |
222 | outb(0x87, sio_cip); | |
14b97ba5 GR |
223 | |
224 | return 0; | |
ab41319e JH |
225 | } |
226 | ||
2219cd81 | 227 | static inline void superio_exit(int sio_cip) |
ab41319e | 228 | { |
2219cd81 | 229 | outb(0xaa, sio_cip); |
14b97ba5 | 230 | release_region(sio_cip, 2); |
ab41319e JH |
231 | } |
232 | ||
233 | /* --------------------------------------------------------------------- | |
234 | * Device I/O access | |
235 | * --------------------------------------------------------------------- */ | |
236 | ||
237 | static inline u8 vt1211_read8(struct vt1211_data *data, u8 reg) | |
238 | { | |
239 | return inb(data->addr + reg); | |
240 | } | |
241 | ||
242 | static inline void vt1211_write8(struct vt1211_data *data, u8 reg, u8 val) | |
243 | { | |
244 | outb(val, data->addr + reg); | |
245 | } | |
246 | ||
247 | static struct vt1211_data *vt1211_update_device(struct device *dev) | |
248 | { | |
249 | struct vt1211_data *data = dev_get_drvdata(dev); | |
250 | int ix, val; | |
251 | ||
252 | mutex_lock(&data->update_lock); | |
253 | ||
254 | /* registers cache is refreshed after 1 second */ | |
255 | if (time_after(jiffies, data->last_updated + HZ) || !data->valid) { | |
256 | /* read VID */ | |
257 | data->vid = vt1211_read8(data, VT1211_REG_VID) & 0x1f; | |
258 | ||
259 | /* voltage (in) registers */ | |
260 | for (ix = 0; ix < ARRAY_SIZE(data->in); ix++) { | |
261 | if (ISVOLT(ix, data->uch_config)) { | |
262 | data->in[ix] = vt1211_read8(data, | |
263 | VT1211_REG_IN(ix)); | |
264 | data->in_min[ix] = vt1211_read8(data, | |
265 | VT1211_REG_IN_MIN(ix)); | |
266 | data->in_max[ix] = vt1211_read8(data, | |
267 | VT1211_REG_IN_MAX(ix)); | |
268 | } | |
269 | } | |
270 | ||
271 | /* temp registers */ | |
272 | for (ix = 0; ix < ARRAY_SIZE(data->temp); ix++) { | |
273 | if (ISTEMP(ix, data->uch_config)) { | |
274 | data->temp[ix] = vt1211_read8(data, | |
275 | regtemp[ix]); | |
276 | data->temp_max[ix] = vt1211_read8(data, | |
277 | regtempmax[ix]); | |
278 | data->temp_hyst[ix] = vt1211_read8(data, | |
279 | regtemphyst[ix]); | |
280 | } | |
281 | } | |
282 | ||
283 | /* fan & pwm registers */ | |
284 | for (ix = 0; ix < ARRAY_SIZE(data->fan); ix++) { | |
285 | data->fan[ix] = vt1211_read8(data, | |
286 | VT1211_REG_FAN(ix)); | |
287 | data->fan_min[ix] = vt1211_read8(data, | |
288 | VT1211_REG_FAN_MIN(ix)); | |
289 | data->pwm[ix] = vt1211_read8(data, | |
290 | VT1211_REG_PWM(ix)); | |
291 | } | |
292 | val = vt1211_read8(data, VT1211_REG_FAN_DIV); | |
293 | data->fan_div[0] = (val >> 4) & 3; | |
294 | data->fan_div[1] = (val >> 6) & 3; | |
295 | data->fan_ctl = val & 0xf; | |
296 | ||
297 | val = vt1211_read8(data, VT1211_REG_PWM_CTL); | |
298 | data->pwm_ctl[0] = val & 0xf; | |
299 | data->pwm_ctl[1] = (val >> 4) & 0xf; | |
300 | ||
301 | data->pwm_clk = vt1211_read8(data, VT1211_REG_PWM_CLK); | |
302 | ||
303 | /* pwm & temp auto point registers */ | |
304 | data->pwm_auto_pwm[0][1] = vt1211_read8(data, | |
305 | VT1211_REG_PWM_AUTO_PWM(0, 1)); | |
306 | data->pwm_auto_pwm[0][2] = vt1211_read8(data, | |
307 | VT1211_REG_PWM_AUTO_PWM(0, 2)); | |
308 | data->pwm_auto_pwm[1][1] = vt1211_read8(data, | |
309 | VT1211_REG_PWM_AUTO_PWM(1, 1)); | |
310 | data->pwm_auto_pwm[1][2] = vt1211_read8(data, | |
311 | VT1211_REG_PWM_AUTO_PWM(1, 2)); | |
312 | for (ix = 0; ix < ARRAY_SIZE(data->pwm_auto_temp); ix++) { | |
313 | data->pwm_auto_temp[ix] = vt1211_read8(data, | |
314 | VT1211_REG_PWM_AUTO_TEMP(ix)); | |
315 | } | |
316 | ||
317 | /* alarm registers */ | |
318 | data->alarms = (vt1211_read8(data, VT1211_REG_ALARM2) << 8) | | |
319 | vt1211_read8(data, VT1211_REG_ALARM1); | |
320 | ||
321 | data->last_updated = jiffies; | |
322 | data->valid = 1; | |
323 | } | |
324 | ||
325 | mutex_unlock(&data->update_lock); | |
326 | ||
327 | return data; | |
328 | } | |
329 | ||
330 | /* --------------------------------------------------------------------- | |
331 | * Voltage sysfs interfaces | |
332 | * ix = [0-5] | |
333 | * --------------------------------------------------------------------- */ | |
334 | ||
335 | #define SHOW_IN_INPUT 0 | |
336 | #define SHOW_SET_IN_MIN 1 | |
337 | #define SHOW_SET_IN_MAX 2 | |
338 | #define SHOW_IN_ALARM 3 | |
339 | ||
340 | static ssize_t show_in(struct device *dev, struct device_attribute *attr, | |
341 | char *buf) | |
342 | { | |
343 | struct vt1211_data *data = vt1211_update_device(dev); | |
344 | struct sensor_device_attribute_2 *sensor_attr_2 = | |
345 | to_sensor_dev_attr_2(attr); | |
346 | int ix = sensor_attr_2->index; | |
347 | int fn = sensor_attr_2->nr; | |
348 | int res; | |
349 | ||
350 | switch (fn) { | |
351 | case SHOW_IN_INPUT: | |
352 | res = IN_FROM_REG(ix, data->in[ix]); | |
353 | break; | |
354 | case SHOW_SET_IN_MIN: | |
355 | res = IN_FROM_REG(ix, data->in_min[ix]); | |
356 | break; | |
357 | case SHOW_SET_IN_MAX: | |
358 | res = IN_FROM_REG(ix, data->in_max[ix]); | |
359 | break; | |
360 | case SHOW_IN_ALARM: | |
361 | res = (data->alarms >> bitalarmin[ix]) & 1; | |
362 | break; | |
363 | default: | |
364 | res = 0; | |
365 | dev_dbg(dev, "Unknown attr fetch (%d)\n", fn); | |
366 | } | |
367 | ||
368 | return sprintf(buf, "%d\n", res); | |
369 | } | |
370 | ||
371 | static ssize_t set_in(struct device *dev, struct device_attribute *attr, | |
372 | const char *buf, size_t count) | |
373 | { | |
374 | struct vt1211_data *data = dev_get_drvdata(dev); | |
375 | struct sensor_device_attribute_2 *sensor_attr_2 = | |
376 | to_sensor_dev_attr_2(attr); | |
377 | int ix = sensor_attr_2->index; | |
378 | int fn = sensor_attr_2->nr; | |
b162c033 GR |
379 | long val; |
380 | int err; | |
381 | ||
382 | err = kstrtol(buf, 10, &val); | |
383 | if (err) | |
384 | return err; | |
ab41319e JH |
385 | |
386 | mutex_lock(&data->update_lock); | |
387 | switch (fn) { | |
388 | case SHOW_SET_IN_MIN: | |
389 | data->in_min[ix] = IN_TO_REG(ix, val); | |
390 | vt1211_write8(data, VT1211_REG_IN_MIN(ix), data->in_min[ix]); | |
391 | break; | |
392 | case SHOW_SET_IN_MAX: | |
393 | data->in_max[ix] = IN_TO_REG(ix, val); | |
394 | vt1211_write8(data, VT1211_REG_IN_MAX(ix), data->in_max[ix]); | |
395 | break; | |
396 | default: | |
397 | dev_dbg(dev, "Unknown attr fetch (%d)\n", fn); | |
398 | } | |
399 | mutex_unlock(&data->update_lock); | |
400 | ||
401 | return count; | |
402 | } | |
403 | ||
404 | /* --------------------------------------------------------------------- | |
405 | * Temperature sysfs interfaces | |
406 | * ix = [0-6] | |
407 | * --------------------------------------------------------------------- */ | |
408 | ||
409 | #define SHOW_TEMP_INPUT 0 | |
410 | #define SHOW_SET_TEMP_MAX 1 | |
411 | #define SHOW_SET_TEMP_MAX_HYST 2 | |
412 | #define SHOW_TEMP_ALARM 3 | |
413 | ||
414 | static ssize_t show_temp(struct device *dev, struct device_attribute *attr, | |
415 | char *buf) | |
416 | { | |
417 | struct vt1211_data *data = vt1211_update_device(dev); | |
418 | struct sensor_device_attribute_2 *sensor_attr_2 = | |
419 | to_sensor_dev_attr_2(attr); | |
420 | int ix = sensor_attr_2->index; | |
421 | int fn = sensor_attr_2->nr; | |
422 | int res; | |
423 | ||
424 | switch (fn) { | |
425 | case SHOW_TEMP_INPUT: | |
426 | res = TEMP_FROM_REG(ix, data->temp[ix]); | |
427 | break; | |
428 | case SHOW_SET_TEMP_MAX: | |
429 | res = TEMP_FROM_REG(ix, data->temp_max[ix]); | |
430 | break; | |
431 | case SHOW_SET_TEMP_MAX_HYST: | |
432 | res = TEMP_FROM_REG(ix, data->temp_hyst[ix]); | |
433 | break; | |
434 | case SHOW_TEMP_ALARM: | |
435 | res = (data->alarms >> bitalarmtemp[ix]) & 1; | |
436 | break; | |
437 | default: | |
438 | res = 0; | |
439 | dev_dbg(dev, "Unknown attr fetch (%d)\n", fn); | |
440 | } | |
441 | ||
442 | return sprintf(buf, "%d\n", res); | |
443 | } | |
444 | ||
445 | static ssize_t set_temp(struct device *dev, struct device_attribute *attr, | |
446 | const char *buf, size_t count) | |
447 | { | |
448 | struct vt1211_data *data = dev_get_drvdata(dev); | |
449 | struct sensor_device_attribute_2 *sensor_attr_2 = | |
450 | to_sensor_dev_attr_2(attr); | |
451 | int ix = sensor_attr_2->index; | |
452 | int fn = sensor_attr_2->nr; | |
b162c033 GR |
453 | long val; |
454 | int err; | |
455 | ||
456 | err = kstrtol(buf, 10, &val); | |
457 | if (err) | |
458 | return err; | |
ab41319e JH |
459 | |
460 | mutex_lock(&data->update_lock); | |
461 | switch (fn) { | |
462 | case SHOW_SET_TEMP_MAX: | |
463 | data->temp_max[ix] = TEMP_TO_REG(ix, val); | |
464 | vt1211_write8(data, regtempmax[ix], | |
465 | data->temp_max[ix]); | |
466 | break; | |
467 | case SHOW_SET_TEMP_MAX_HYST: | |
468 | data->temp_hyst[ix] = TEMP_TO_REG(ix, val); | |
469 | vt1211_write8(data, regtemphyst[ix], | |
470 | data->temp_hyst[ix]); | |
471 | break; | |
472 | default: | |
473 | dev_dbg(dev, "Unknown attr fetch (%d)\n", fn); | |
474 | } | |
475 | mutex_unlock(&data->update_lock); | |
476 | ||
477 | return count; | |
478 | } | |
479 | ||
480 | /* --------------------------------------------------------------------- | |
481 | * Fan sysfs interfaces | |
482 | * ix = [0-1] | |
483 | * --------------------------------------------------------------------- */ | |
484 | ||
485 | #define SHOW_FAN_INPUT 0 | |
486 | #define SHOW_SET_FAN_MIN 1 | |
487 | #define SHOW_SET_FAN_DIV 2 | |
488 | #define SHOW_FAN_ALARM 3 | |
489 | ||
490 | static ssize_t show_fan(struct device *dev, struct device_attribute *attr, | |
491 | char *buf) | |
492 | { | |
493 | struct vt1211_data *data = vt1211_update_device(dev); | |
494 | struct sensor_device_attribute_2 *sensor_attr_2 = | |
495 | to_sensor_dev_attr_2(attr); | |
496 | int ix = sensor_attr_2->index; | |
497 | int fn = sensor_attr_2->nr; | |
498 | int res; | |
499 | ||
500 | switch (fn) { | |
501 | case SHOW_FAN_INPUT: | |
502 | res = RPM_FROM_REG(data->fan[ix], data->fan_div[ix]); | |
503 | break; | |
504 | case SHOW_SET_FAN_MIN: | |
505 | res = RPM_FROM_REG(data->fan_min[ix], data->fan_div[ix]); | |
506 | break; | |
507 | case SHOW_SET_FAN_DIV: | |
508 | res = DIV_FROM_REG(data->fan_div[ix]); | |
509 | break; | |
510 | case SHOW_FAN_ALARM: | |
511 | res = (data->alarms >> bitalarmfan[ix]) & 1; | |
512 | break; | |
513 | default: | |
514 | res = 0; | |
515 | dev_dbg(dev, "Unknown attr fetch (%d)\n", fn); | |
516 | } | |
517 | ||
518 | return sprintf(buf, "%d\n", res); | |
519 | } | |
520 | ||
521 | static ssize_t set_fan(struct device *dev, struct device_attribute *attr, | |
522 | const char *buf, size_t count) | |
523 | { | |
524 | struct vt1211_data *data = dev_get_drvdata(dev); | |
525 | struct sensor_device_attribute_2 *sensor_attr_2 = | |
526 | to_sensor_dev_attr_2(attr); | |
527 | int ix = sensor_attr_2->index; | |
528 | int fn = sensor_attr_2->nr; | |
ab41319e | 529 | int reg; |
b162c033 GR |
530 | unsigned long val; |
531 | int err; | |
532 | ||
533 | err = kstrtoul(buf, 10, &val); | |
534 | if (err) | |
535 | return err; | |
ab41319e JH |
536 | |
537 | mutex_lock(&data->update_lock); | |
538 | ||
539 | /* sync the data cache */ | |
540 | reg = vt1211_read8(data, VT1211_REG_FAN_DIV); | |
541 | data->fan_div[0] = (reg >> 4) & 3; | |
542 | data->fan_div[1] = (reg >> 6) & 3; | |
543 | data->fan_ctl = reg & 0xf; | |
544 | ||
545 | switch (fn) { | |
546 | case SHOW_SET_FAN_MIN: | |
547 | data->fan_min[ix] = RPM_TO_REG(val, data->fan_div[ix]); | |
548 | vt1211_write8(data, VT1211_REG_FAN_MIN(ix), | |
549 | data->fan_min[ix]); | |
550 | break; | |
551 | case SHOW_SET_FAN_DIV: | |
552 | switch (val) { | |
b162c033 GR |
553 | case 1: |
554 | data->fan_div[ix] = 0; | |
555 | break; | |
556 | case 2: | |
557 | data->fan_div[ix] = 1; | |
558 | break; | |
559 | case 4: | |
560 | data->fan_div[ix] = 2; | |
561 | break; | |
562 | case 8: | |
563 | data->fan_div[ix] = 3; | |
564 | break; | |
565 | default: | |
566 | count = -EINVAL; | |
b55f3757 GR |
567 | dev_warn(dev, |
568 | "fan div value %ld not supported. Choose one of 1, 2, 4, or 8.\n", | |
569 | val); | |
b162c033 | 570 | goto EXIT; |
ab41319e JH |
571 | } |
572 | vt1211_write8(data, VT1211_REG_FAN_DIV, | |
573 | ((data->fan_div[1] << 6) | | |
574 | (data->fan_div[0] << 4) | | |
575 | data->fan_ctl)); | |
576 | break; | |
577 | default: | |
578 | dev_dbg(dev, "Unknown attr fetch (%d)\n", fn); | |
579 | } | |
580 | ||
581 | EXIT: | |
582 | mutex_unlock(&data->update_lock); | |
583 | return count; | |
584 | } | |
585 | ||
586 | /* --------------------------------------------------------------------- | |
587 | * PWM sysfs interfaces | |
588 | * ix = [0-1] | |
589 | * --------------------------------------------------------------------- */ | |
590 | ||
591 | #define SHOW_PWM 0 | |
592 | #define SHOW_SET_PWM_ENABLE 1 | |
593 | #define SHOW_SET_PWM_FREQ 2 | |
594 | #define SHOW_SET_PWM_AUTO_CHANNELS_TEMP 3 | |
595 | ||
596 | static ssize_t show_pwm(struct device *dev, struct device_attribute *attr, | |
597 | char *buf) | |
598 | { | |
599 | struct vt1211_data *data = vt1211_update_device(dev); | |
600 | struct sensor_device_attribute_2 *sensor_attr_2 = | |
601 | to_sensor_dev_attr_2(attr); | |
602 | int ix = sensor_attr_2->index; | |
603 | int fn = sensor_attr_2->nr; | |
604 | int res; | |
605 | ||
606 | switch (fn) { | |
607 | case SHOW_PWM: | |
608 | res = data->pwm[ix]; | |
609 | break; | |
610 | case SHOW_SET_PWM_ENABLE: | |
611 | res = ((data->pwm_ctl[ix] >> 3) & 1) ? 2 : 0; | |
612 | break; | |
613 | case SHOW_SET_PWM_FREQ: | |
614 | res = 90000 >> (data->pwm_clk & 7); | |
615 | break; | |
616 | case SHOW_SET_PWM_AUTO_CHANNELS_TEMP: | |
617 | res = (data->pwm_ctl[ix] & 7) + 1; | |
618 | break; | |
619 | default: | |
620 | res = 0; | |
621 | dev_dbg(dev, "Unknown attr fetch (%d)\n", fn); | |
622 | } | |
623 | ||
624 | return sprintf(buf, "%d\n", res); | |
625 | } | |
626 | ||
627 | static ssize_t set_pwm(struct device *dev, struct device_attribute *attr, | |
628 | const char *buf, size_t count) | |
629 | { | |
630 | struct vt1211_data *data = dev_get_drvdata(dev); | |
631 | struct sensor_device_attribute_2 *sensor_attr_2 = | |
632 | to_sensor_dev_attr_2(attr); | |
633 | int ix = sensor_attr_2->index; | |
634 | int fn = sensor_attr_2->nr; | |
ab41319e | 635 | int tmp, reg; |
b162c033 GR |
636 | unsigned long val; |
637 | int err; | |
638 | ||
639 | err = kstrtoul(buf, 10, &val); | |
640 | if (err) | |
641 | return err; | |
ab41319e JH |
642 | |
643 | mutex_lock(&data->update_lock); | |
644 | ||
645 | switch (fn) { | |
646 | case SHOW_SET_PWM_ENABLE: | |
647 | /* sync the data cache */ | |
648 | reg = vt1211_read8(data, VT1211_REG_FAN_DIV); | |
649 | data->fan_div[0] = (reg >> 4) & 3; | |
650 | data->fan_div[1] = (reg >> 6) & 3; | |
651 | data->fan_ctl = reg & 0xf; | |
652 | reg = vt1211_read8(data, VT1211_REG_PWM_CTL); | |
653 | data->pwm_ctl[0] = reg & 0xf; | |
654 | data->pwm_ctl[1] = (reg >> 4) & 0xf; | |
655 | switch (val) { | |
656 | case 0: | |
657 | data->pwm_ctl[ix] &= 7; | |
b162c033 GR |
658 | /* |
659 | * disable SmartGuardian if both PWM outputs are | |
660 | * disabled | |
661 | */ | |
662 | if ((data->pwm_ctl[ix ^ 1] & 1) == 0) | |
ab41319e | 663 | data->fan_ctl &= 0xe; |
ab41319e JH |
664 | break; |
665 | case 2: | |
666 | data->pwm_ctl[ix] |= 8; | |
667 | data->fan_ctl |= 1; | |
668 | break; | |
669 | default: | |
670 | count = -EINVAL; | |
b55f3757 GR |
671 | dev_warn(dev, |
672 | "pwm mode %ld not supported. Choose one of 0 or 2.\n", | |
673 | val); | |
ab41319e JH |
674 | goto EXIT; |
675 | } | |
676 | vt1211_write8(data, VT1211_REG_PWM_CTL, | |
677 | ((data->pwm_ctl[1] << 4) | | |
678 | data->pwm_ctl[0])); | |
679 | vt1211_write8(data, VT1211_REG_FAN_DIV, | |
680 | ((data->fan_div[1] << 6) | | |
681 | (data->fan_div[0] << 4) | | |
682 | data->fan_ctl)); | |
683 | break; | |
684 | case SHOW_SET_PWM_FREQ: | |
2a844c14 | 685 | val = 135000 / clamp_val(val, 135000 >> 7, 135000); |
ab41319e JH |
686 | /* calculate tmp = log2(val) */ |
687 | tmp = 0; | |
b162c033 | 688 | for (val >>= 1; val > 0; val >>= 1) |
ab41319e | 689 | tmp++; |
ab41319e JH |
690 | /* sync the data cache */ |
691 | reg = vt1211_read8(data, VT1211_REG_PWM_CLK); | |
692 | data->pwm_clk = (reg & 0xf8) | tmp; | |
693 | vt1211_write8(data, VT1211_REG_PWM_CLK, data->pwm_clk); | |
694 | break; | |
695 | case SHOW_SET_PWM_AUTO_CHANNELS_TEMP: | |
b162c033 | 696 | if (val < 1 || val > 7) { |
ab41319e | 697 | count = -EINVAL; |
b55f3757 GR |
698 | dev_warn(dev, |
699 | "temp channel %ld not supported. Choose a value between 1 and 7.\n", | |
700 | val); | |
ab41319e JH |
701 | goto EXIT; |
702 | } | |
703 | if (!ISTEMP(val - 1, data->uch_config)) { | |
704 | count = -EINVAL; | |
705 | dev_warn(dev, "temp channel %ld is not available.\n", | |
706 | val); | |
707 | goto EXIT; | |
708 | } | |
709 | /* sync the data cache */ | |
710 | reg = vt1211_read8(data, VT1211_REG_PWM_CTL); | |
711 | data->pwm_ctl[0] = reg & 0xf; | |
712 | data->pwm_ctl[1] = (reg >> 4) & 0xf; | |
713 | data->pwm_ctl[ix] = (data->pwm_ctl[ix] & 8) | (val - 1); | |
714 | vt1211_write8(data, VT1211_REG_PWM_CTL, | |
715 | ((data->pwm_ctl[1] << 4) | data->pwm_ctl[0])); | |
716 | break; | |
717 | default: | |
718 | dev_dbg(dev, "Unknown attr fetch (%d)\n", fn); | |
719 | } | |
720 | ||
721 | EXIT: | |
722 | mutex_unlock(&data->update_lock); | |
723 | return count; | |
724 | } | |
725 | ||
726 | /* --------------------------------------------------------------------- | |
727 | * PWM auto point definitions | |
728 | * ix = [0-1] | |
729 | * ap = [0-3] | |
730 | * --------------------------------------------------------------------- */ | |
731 | ||
732 | /* | |
733 | * pwm[ix+1]_auto_point[ap+1]_temp mapping table: | |
734 | * Note that there is only a single set of temp auto points that controls both | |
735 | * PWM controllers. We still create 2 sets of sysfs files to make it look | |
736 | * more consistent even though they map to the same registers. | |
737 | * | |
738 | * ix ap : description | |
739 | * ------------------- | |
740 | * 0 0 : pwm1/2 off temperature (pwm_auto_temp[0]) | |
741 | * 0 1 : pwm1/2 low speed temperature (pwm_auto_temp[1]) | |
742 | * 0 2 : pwm1/2 high speed temperature (pwm_auto_temp[2]) | |
743 | * 0 3 : pwm1/2 full speed temperature (pwm_auto_temp[3]) | |
744 | * 1 0 : pwm1/2 off temperature (pwm_auto_temp[0]) | |
745 | * 1 1 : pwm1/2 low speed temperature (pwm_auto_temp[1]) | |
746 | * 1 2 : pwm1/2 high speed temperature (pwm_auto_temp[2]) | |
747 | * 1 3 : pwm1/2 full speed temperature (pwm_auto_temp[3]) | |
748 | */ | |
749 | ||
750 | static ssize_t show_pwm_auto_point_temp(struct device *dev, | |
751 | struct device_attribute *attr, | |
752 | char *buf) | |
753 | { | |
754 | struct vt1211_data *data = vt1211_update_device(dev); | |
755 | struct sensor_device_attribute_2 *sensor_attr_2 = | |
756 | to_sensor_dev_attr_2(attr); | |
757 | int ix = sensor_attr_2->index; | |
758 | int ap = sensor_attr_2->nr; | |
759 | ||
760 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->pwm_ctl[ix] & 7, | |
761 | data->pwm_auto_temp[ap])); | |
762 | } | |
763 | ||
764 | static ssize_t set_pwm_auto_point_temp(struct device *dev, | |
765 | struct device_attribute *attr, | |
766 | const char *buf, size_t count) | |
767 | { | |
768 | struct vt1211_data *data = dev_get_drvdata(dev); | |
769 | struct sensor_device_attribute_2 *sensor_attr_2 = | |
770 | to_sensor_dev_attr_2(attr); | |
771 | int ix = sensor_attr_2->index; | |
772 | int ap = sensor_attr_2->nr; | |
ab41319e | 773 | int reg; |
b162c033 GR |
774 | long val; |
775 | int err; | |
776 | ||
777 | err = kstrtol(buf, 10, &val); | |
778 | if (err) | |
779 | return err; | |
780 | ||
ab41319e JH |
781 | |
782 | mutex_lock(&data->update_lock); | |
783 | ||
784 | /* sync the data cache */ | |
785 | reg = vt1211_read8(data, VT1211_REG_PWM_CTL); | |
786 | data->pwm_ctl[0] = reg & 0xf; | |
787 | data->pwm_ctl[1] = (reg >> 4) & 0xf; | |
788 | ||
789 | data->pwm_auto_temp[ap] = TEMP_TO_REG(data->pwm_ctl[ix] & 7, val); | |
790 | vt1211_write8(data, VT1211_REG_PWM_AUTO_TEMP(ap), | |
791 | data->pwm_auto_temp[ap]); | |
792 | mutex_unlock(&data->update_lock); | |
793 | ||
794 | return count; | |
795 | } | |
796 | ||
797 | /* | |
798 | * pwm[ix+1]_auto_point[ap+1]_pwm mapping table: | |
799 | * Note that the PWM auto points 0 & 3 are hard-wired in the VT1211 and can't | |
800 | * be changed. | |
801 | * | |
802 | * ix ap : description | |
803 | * ------------------- | |
804 | * 0 0 : pwm1 off (pwm_auto_pwm[0][0], hard-wired to 0) | |
805 | * 0 1 : pwm1 low speed duty cycle (pwm_auto_pwm[0][1]) | |
806 | * 0 2 : pwm1 high speed duty cycle (pwm_auto_pwm[0][2]) | |
807 | * 0 3 : pwm1 full speed (pwm_auto_pwm[0][3], hard-wired to 255) | |
808 | * 1 0 : pwm2 off (pwm_auto_pwm[1][0], hard-wired to 0) | |
809 | * 1 1 : pwm2 low speed duty cycle (pwm_auto_pwm[1][1]) | |
810 | * 1 2 : pwm2 high speed duty cycle (pwm_auto_pwm[1][2]) | |
811 | * 1 3 : pwm2 full speed (pwm_auto_pwm[1][3], hard-wired to 255) | |
b162c033 | 812 | */ |
ab41319e JH |
813 | |
814 | static ssize_t show_pwm_auto_point_pwm(struct device *dev, | |
815 | struct device_attribute *attr, | |
816 | char *buf) | |
817 | { | |
818 | struct vt1211_data *data = vt1211_update_device(dev); | |
819 | struct sensor_device_attribute_2 *sensor_attr_2 = | |
820 | to_sensor_dev_attr_2(attr); | |
821 | int ix = sensor_attr_2->index; | |
822 | int ap = sensor_attr_2->nr; | |
823 | ||
824 | return sprintf(buf, "%d\n", data->pwm_auto_pwm[ix][ap]); | |
825 | } | |
826 | ||
827 | static ssize_t set_pwm_auto_point_pwm(struct device *dev, | |
828 | struct device_attribute *attr, | |
829 | const char *buf, size_t count) | |
830 | { | |
831 | struct vt1211_data *data = dev_get_drvdata(dev); | |
832 | struct sensor_device_attribute_2 *sensor_attr_2 = | |
833 | to_sensor_dev_attr_2(attr); | |
834 | int ix = sensor_attr_2->index; | |
835 | int ap = sensor_attr_2->nr; | |
b162c033 GR |
836 | unsigned long val; |
837 | int err; | |
ab41319e | 838 | |
b162c033 GR |
839 | err = kstrtoul(buf, 10, &val); |
840 | if (err) | |
841 | return err; | |
ab41319e JH |
842 | |
843 | mutex_lock(&data->update_lock); | |
2a844c14 | 844 | data->pwm_auto_pwm[ix][ap] = clamp_val(val, 0, 255); |
ab41319e JH |
845 | vt1211_write8(data, VT1211_REG_PWM_AUTO_PWM(ix, ap), |
846 | data->pwm_auto_pwm[ix][ap]); | |
847 | mutex_unlock(&data->update_lock); | |
848 | ||
849 | return count; | |
850 | } | |
851 | ||
852 | /* --------------------------------------------------------------------- | |
853 | * Miscellaneous sysfs interfaces (VRM, VID, name, and (legacy) alarms) | |
854 | * --------------------------------------------------------------------- */ | |
855 | ||
856 | static ssize_t show_vrm(struct device *dev, struct device_attribute *attr, | |
857 | char *buf) | |
858 | { | |
859 | struct vt1211_data *data = dev_get_drvdata(dev); | |
860 | ||
861 | return sprintf(buf, "%d\n", data->vrm); | |
862 | } | |
863 | ||
864 | static ssize_t set_vrm(struct device *dev, struct device_attribute *attr, | |
865 | const char *buf, size_t count) | |
866 | { | |
867 | struct vt1211_data *data = dev_get_drvdata(dev); | |
b162c033 GR |
868 | unsigned long val; |
869 | int err; | |
870 | ||
871 | err = kstrtoul(buf, 10, &val); | |
872 | if (err) | |
873 | return err; | |
ab41319e | 874 | |
5c570b95 AL |
875 | if (val > 255) |
876 | return -EINVAL; | |
877 | ||
ab41319e JH |
878 | data->vrm = val; |
879 | ||
880 | return count; | |
881 | } | |
882 | ||
883 | static ssize_t show_vid(struct device *dev, struct device_attribute *attr, | |
884 | char *buf) | |
885 | { | |
886 | struct vt1211_data *data = dev_get_drvdata(dev); | |
887 | ||
888 | return sprintf(buf, "%d\n", vid_from_reg(data->vid, data->vrm)); | |
889 | } | |
890 | ||
891 | static ssize_t show_name(struct device *dev, | |
892 | struct device_attribute *attr, char *buf) | |
893 | { | |
894 | struct vt1211_data *data = dev_get_drvdata(dev); | |
895 | ||
896 | return sprintf(buf, "%s\n", data->name); | |
897 | } | |
898 | ||
899 | static ssize_t show_alarms(struct device *dev, | |
900 | struct device_attribute *attr, char *buf) | |
901 | { | |
902 | struct vt1211_data *data = vt1211_update_device(dev); | |
903 | ||
904 | return sprintf(buf, "%d\n", data->alarms); | |
905 | } | |
906 | ||
907 | /* --------------------------------------------------------------------- | |
908 | * Device attribute structs | |
909 | * --------------------------------------------------------------------- */ | |
910 | ||
2185696d GR |
911 | #define SENSOR_ATTR_IN(ix) \ |
912 | { SENSOR_ATTR_2(in##ix##_input, S_IRUGO, \ | |
913 | show_in, NULL, SHOW_IN_INPUT, ix), \ | |
ab41319e | 914 | SENSOR_ATTR_2(in##ix##_min, S_IRUGO | S_IWUSR, \ |
2185696d | 915 | show_in, set_in, SHOW_SET_IN_MIN, ix), \ |
ab41319e | 916 | SENSOR_ATTR_2(in##ix##_max, S_IRUGO | S_IWUSR, \ |
2185696d GR |
917 | show_in, set_in, SHOW_SET_IN_MAX, ix), \ |
918 | SENSOR_ATTR_2(in##ix##_alarm, S_IRUGO, \ | |
919 | show_in, NULL, SHOW_IN_ALARM, ix) \ | |
920 | } | |
921 | ||
922 | static struct sensor_device_attribute_2 vt1211_sysfs_in[][4] = { | |
923 | SENSOR_ATTR_IN(0), | |
924 | SENSOR_ATTR_IN(1), | |
925 | SENSOR_ATTR_IN(2), | |
926 | SENSOR_ATTR_IN(3), | |
927 | SENSOR_ATTR_IN(4), | |
928 | SENSOR_ATTR_IN(5) | |
ab41319e JH |
929 | }; |
930 | ||
2185696d GR |
931 | #define IN_UNIT_ATTRS(X) \ |
932 | { &vt1211_sysfs_in[X][0].dev_attr.attr, \ | |
933 | &vt1211_sysfs_in[X][1].dev_attr.attr, \ | |
934 | &vt1211_sysfs_in[X][2].dev_attr.attr, \ | |
935 | &vt1211_sysfs_in[X][3].dev_attr.attr, \ | |
936 | NULL \ | |
937 | } | |
938 | ||
939 | static struct attribute *vt1211_in_attr[][5] = { | |
940 | IN_UNIT_ATTRS(0), | |
941 | IN_UNIT_ATTRS(1), | |
942 | IN_UNIT_ATTRS(2), | |
943 | IN_UNIT_ATTRS(3), | |
944 | IN_UNIT_ATTRS(4), | |
945 | IN_UNIT_ATTRS(5) | |
ab41319e JH |
946 | }; |
947 | ||
2185696d GR |
948 | static const struct attribute_group vt1211_in_attr_group[] = { |
949 | { .attrs = vt1211_in_attr[0] }, | |
950 | { .attrs = vt1211_in_attr[1] }, | |
951 | { .attrs = vt1211_in_attr[2] }, | |
952 | { .attrs = vt1211_in_attr[3] }, | |
953 | { .attrs = vt1211_in_attr[4] }, | |
954 | { .attrs = vt1211_in_attr[5] } | |
ab41319e JH |
955 | }; |
956 | ||
2185696d GR |
957 | #define SENSOR_ATTR_TEMP(ix) \ |
958 | { SENSOR_ATTR_2(temp##ix##_input, S_IRUGO, \ | |
959 | show_temp, NULL, SHOW_TEMP_INPUT, ix-1), \ | |
ab41319e | 960 | SENSOR_ATTR_2(temp##ix##_max, S_IRUGO | S_IWUSR, \ |
2185696d GR |
961 | show_temp, set_temp, SHOW_SET_TEMP_MAX, ix-1), \ |
962 | SENSOR_ATTR_2(temp##ix##_max_hyst, S_IRUGO | S_IWUSR, \ | |
963 | show_temp, set_temp, SHOW_SET_TEMP_MAX_HYST, ix-1), \ | |
964 | SENSOR_ATTR_2(temp##ix##_alarm, S_IRUGO, \ | |
965 | show_temp, NULL, SHOW_TEMP_ALARM, ix-1) \ | |
966 | } | |
967 | ||
968 | static struct sensor_device_attribute_2 vt1211_sysfs_temp[][4] = { | |
969 | SENSOR_ATTR_TEMP(1), | |
970 | SENSOR_ATTR_TEMP(2), | |
971 | SENSOR_ATTR_TEMP(3), | |
972 | SENSOR_ATTR_TEMP(4), | |
973 | SENSOR_ATTR_TEMP(5), | |
974 | SENSOR_ATTR_TEMP(6), | |
975 | SENSOR_ATTR_TEMP(7), | |
ab41319e JH |
976 | }; |
977 | ||
2185696d GR |
978 | #define TEMP_UNIT_ATTRS(X) \ |
979 | { &vt1211_sysfs_temp[X][0].dev_attr.attr, \ | |
980 | &vt1211_sysfs_temp[X][1].dev_attr.attr, \ | |
981 | &vt1211_sysfs_temp[X][2].dev_attr.attr, \ | |
982 | &vt1211_sysfs_temp[X][3].dev_attr.attr, \ | |
983 | NULL \ | |
984 | } | |
985 | ||
986 | static struct attribute *vt1211_temp_attr[][5] = { | |
987 | TEMP_UNIT_ATTRS(0), | |
988 | TEMP_UNIT_ATTRS(1), | |
989 | TEMP_UNIT_ATTRS(2), | |
990 | TEMP_UNIT_ATTRS(3), | |
991 | TEMP_UNIT_ATTRS(4), | |
992 | TEMP_UNIT_ATTRS(5), | |
993 | TEMP_UNIT_ATTRS(6) | |
ab41319e JH |
994 | }; |
995 | ||
2185696d GR |
996 | static const struct attribute_group vt1211_temp_attr_group[] = { |
997 | { .attrs = vt1211_temp_attr[0] }, | |
998 | { .attrs = vt1211_temp_attr[1] }, | |
999 | { .attrs = vt1211_temp_attr[2] }, | |
1000 | { .attrs = vt1211_temp_attr[3] }, | |
1001 | { .attrs = vt1211_temp_attr[4] }, | |
1002 | { .attrs = vt1211_temp_attr[5] }, | |
1003 | { .attrs = vt1211_temp_attr[6] } | |
ab41319e JH |
1004 | }; |
1005 | ||
1006 | #define SENSOR_ATTR_FAN(ix) \ | |
1007 | SENSOR_ATTR_2(fan##ix##_input, S_IRUGO, \ | |
1008 | show_fan, NULL, SHOW_FAN_INPUT, ix-1), \ | |
1009 | SENSOR_ATTR_2(fan##ix##_min, S_IRUGO | S_IWUSR, \ | |
1010 | show_fan, set_fan, SHOW_SET_FAN_MIN, ix-1), \ | |
1011 | SENSOR_ATTR_2(fan##ix##_div, S_IRUGO | S_IWUSR, \ | |
1012 | show_fan, set_fan, SHOW_SET_FAN_DIV, ix-1), \ | |
1013 | SENSOR_ATTR_2(fan##ix##_alarm, S_IRUGO, \ | |
1014 | show_fan, NULL, SHOW_FAN_ALARM, ix-1) | |
1015 | ||
1016 | #define SENSOR_ATTR_PWM(ix) \ | |
1017 | SENSOR_ATTR_2(pwm##ix, S_IRUGO, \ | |
1018 | show_pwm, NULL, SHOW_PWM, ix-1), \ | |
1019 | SENSOR_ATTR_2(pwm##ix##_enable, S_IRUGO | S_IWUSR, \ | |
1020 | show_pwm, set_pwm, SHOW_SET_PWM_ENABLE, ix-1), \ | |
1021 | SENSOR_ATTR_2(pwm##ix##_auto_channels_temp, S_IRUGO | S_IWUSR, \ | |
1022 | show_pwm, set_pwm, SHOW_SET_PWM_AUTO_CHANNELS_TEMP, ix-1) | |
1023 | ||
1024 | #define SENSOR_ATTR_PWM_FREQ(ix) \ | |
1025 | SENSOR_ATTR_2(pwm##ix##_freq, S_IRUGO | S_IWUSR, \ | |
1026 | show_pwm, set_pwm, SHOW_SET_PWM_FREQ, ix-1) | |
1027 | ||
1028 | #define SENSOR_ATTR_PWM_FREQ_RO(ix) \ | |
1029 | SENSOR_ATTR_2(pwm##ix##_freq, S_IRUGO, \ | |
1030 | show_pwm, NULL, SHOW_SET_PWM_FREQ, ix-1) | |
1031 | ||
1032 | #define SENSOR_ATTR_PWM_AUTO_POINT_TEMP(ix, ap) \ | |
1033 | SENSOR_ATTR_2(pwm##ix##_auto_point##ap##_temp, S_IRUGO | S_IWUSR, \ | |
1034 | show_pwm_auto_point_temp, set_pwm_auto_point_temp, \ | |
1035 | ap-1, ix-1) | |
1036 | ||
1037 | #define SENSOR_ATTR_PWM_AUTO_POINT_TEMP_RO(ix, ap) \ | |
1038 | SENSOR_ATTR_2(pwm##ix##_auto_point##ap##_temp, S_IRUGO, \ | |
1039 | show_pwm_auto_point_temp, NULL, \ | |
1040 | ap-1, ix-1) | |
1041 | ||
1042 | #define SENSOR_ATTR_PWM_AUTO_POINT_PWM(ix, ap) \ | |
1043 | SENSOR_ATTR_2(pwm##ix##_auto_point##ap##_pwm, S_IRUGO | S_IWUSR, \ | |
1044 | show_pwm_auto_point_pwm, set_pwm_auto_point_pwm, \ | |
1045 | ap-1, ix-1) | |
1046 | ||
1047 | #define SENSOR_ATTR_PWM_AUTO_POINT_PWM_RO(ix, ap) \ | |
1048 | SENSOR_ATTR_2(pwm##ix##_auto_point##ap##_pwm, S_IRUGO, \ | |
1049 | show_pwm_auto_point_pwm, NULL, \ | |
1050 | ap-1, ix-1) | |
1051 | ||
1052 | static struct sensor_device_attribute_2 vt1211_sysfs_fan_pwm[] = { | |
1053 | SENSOR_ATTR_FAN(1), | |
1054 | SENSOR_ATTR_FAN(2), | |
1055 | SENSOR_ATTR_PWM(1), | |
1056 | SENSOR_ATTR_PWM(2), | |
1057 | SENSOR_ATTR_PWM_FREQ(1), | |
1058 | SENSOR_ATTR_PWM_FREQ_RO(2), | |
1059 | SENSOR_ATTR_PWM_AUTO_POINT_TEMP(1, 1), | |
1060 | SENSOR_ATTR_PWM_AUTO_POINT_TEMP(1, 2), | |
1061 | SENSOR_ATTR_PWM_AUTO_POINT_TEMP(1, 3), | |
1062 | SENSOR_ATTR_PWM_AUTO_POINT_TEMP(1, 4), | |
1063 | SENSOR_ATTR_PWM_AUTO_POINT_TEMP_RO(2, 1), | |
1064 | SENSOR_ATTR_PWM_AUTO_POINT_TEMP_RO(2, 2), | |
1065 | SENSOR_ATTR_PWM_AUTO_POINT_TEMP_RO(2, 3), | |
1066 | SENSOR_ATTR_PWM_AUTO_POINT_TEMP_RO(2, 4), | |
1067 | SENSOR_ATTR_PWM_AUTO_POINT_PWM_RO(1, 1), | |
1068 | SENSOR_ATTR_PWM_AUTO_POINT_PWM(1, 2), | |
1069 | SENSOR_ATTR_PWM_AUTO_POINT_PWM(1, 3), | |
1070 | SENSOR_ATTR_PWM_AUTO_POINT_PWM_RO(1, 4), | |
1071 | SENSOR_ATTR_PWM_AUTO_POINT_PWM_RO(2, 1), | |
1072 | SENSOR_ATTR_PWM_AUTO_POINT_PWM(2, 2), | |
1073 | SENSOR_ATTR_PWM_AUTO_POINT_PWM(2, 3), | |
1074 | SENSOR_ATTR_PWM_AUTO_POINT_PWM_RO(2, 4), | |
1075 | }; | |
1076 | ||
1077 | static struct device_attribute vt1211_sysfs_misc[] = { | |
1078 | __ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm, set_vrm), | |
1079 | __ATTR(cpu0_vid, S_IRUGO, show_vid, NULL), | |
1080 | __ATTR(name, S_IRUGO, show_name, NULL), | |
1081 | __ATTR(alarms, S_IRUGO, show_alarms, NULL), | |
1082 | }; | |
1083 | ||
1084 | /* --------------------------------------------------------------------- | |
1085 | * Device registration and initialization | |
1086 | * --------------------------------------------------------------------- */ | |
1087 | ||
6c931ae1 | 1088 | static void vt1211_init_device(struct vt1211_data *data) |
ab41319e JH |
1089 | { |
1090 | /* set VRM */ | |
1091 | data->vrm = vid_which_vrm(); | |
1092 | ||
1093 | /* Read (and initialize) UCH config */ | |
1094 | data->uch_config = vt1211_read8(data, VT1211_REG_UCH_CONFIG); | |
1095 | if (uch_config > -1) { | |
1096 | data->uch_config = (data->uch_config & 0x83) | | |
1097 | (uch_config << 2); | |
1098 | vt1211_write8(data, VT1211_REG_UCH_CONFIG, data->uch_config); | |
1099 | } | |
1100 | ||
b162c033 GR |
1101 | /* |
1102 | * Initialize the interrupt mode (if request at module load time). | |
ab41319e JH |
1103 | * The VT1211 implements 3 different modes for clearing interrupts: |
1104 | * 0: Clear INT when status register is read. Regenerate INT as long | |
1105 | * as temp stays above hysteresis limit. | |
1106 | * 1: Clear INT when status register is read. DON'T regenerate INT | |
1107 | * until temp falls below hysteresis limit and exceeds hot limit | |
1108 | * again. | |
1109 | * 2: Clear INT when temp falls below max limit. | |
1110 | * | |
1111 | * The driver only allows to force mode 0 since that's the only one | |
b162c033 GR |
1112 | * that makes sense for 'sensors' |
1113 | */ | |
ab41319e JH |
1114 | if (int_mode == 0) { |
1115 | vt1211_write8(data, VT1211_REG_TEMP1_CONFIG, 0); | |
1116 | vt1211_write8(data, VT1211_REG_TEMP2_CONFIG, 0); | |
1117 | } | |
1118 | ||
1119 | /* Fill in some hard wired values into our data struct */ | |
1120 | data->pwm_auto_pwm[0][3] = 255; | |
1121 | data->pwm_auto_pwm[1][3] = 255; | |
1122 | } | |
1123 | ||
1124 | static void vt1211_remove_sysfs(struct platform_device *pdev) | |
1125 | { | |
1126 | struct device *dev = &pdev->dev; | |
1127 | int i; | |
1128 | ||
2185696d GR |
1129 | for (i = 0; i < ARRAY_SIZE(vt1211_in_attr_group); i++) |
1130 | sysfs_remove_group(&dev->kobj, &vt1211_in_attr_group[i]); | |
1131 | ||
1132 | for (i = 0; i < ARRAY_SIZE(vt1211_temp_attr_group); i++) | |
1133 | sysfs_remove_group(&dev->kobj, &vt1211_temp_attr_group[i]); | |
1134 | ||
ab41319e JH |
1135 | for (i = 0; i < ARRAY_SIZE(vt1211_sysfs_fan_pwm); i++) { |
1136 | device_remove_file(dev, | |
1137 | &vt1211_sysfs_fan_pwm[i].dev_attr); | |
1138 | } | |
b162c033 | 1139 | for (i = 0; i < ARRAY_SIZE(vt1211_sysfs_misc); i++) |
ab41319e | 1140 | device_remove_file(dev, &vt1211_sysfs_misc[i]); |
ab41319e JH |
1141 | } |
1142 | ||
6c931ae1 | 1143 | static int vt1211_probe(struct platform_device *pdev) |
ab41319e JH |
1144 | { |
1145 | struct device *dev = &pdev->dev; | |
1146 | struct vt1211_data *data; | |
1147 | struct resource *res; | |
1148 | int i, err; | |
1149 | ||
84269edc | 1150 | data = devm_kzalloc(dev, sizeof(struct vt1211_data), GFP_KERNEL); |
5b20995e | 1151 | if (!data) |
84269edc | 1152 | return -ENOMEM; |
ab41319e JH |
1153 | |
1154 | res = platform_get_resource(pdev, IORESOURCE_IO, 0); | |
84269edc GR |
1155 | if (!devm_request_region(dev, res->start, resource_size(res), |
1156 | DRVNAME)) { | |
ce7ee4e8 JD |
1157 | dev_err(dev, "Failed to request region 0x%lx-0x%lx\n", |
1158 | (unsigned long)res->start, (unsigned long)res->end); | |
84269edc | 1159 | return -EBUSY; |
ce7ee4e8 | 1160 | } |
ab41319e JH |
1161 | data->addr = res->start; |
1162 | data->name = DRVNAME; | |
1163 | mutex_init(&data->update_lock); | |
1164 | ||
1165 | platform_set_drvdata(pdev, data); | |
1166 | ||
1167 | /* Initialize the VT1211 chip */ | |
1168 | vt1211_init_device(data); | |
1169 | ||
1170 | /* Create sysfs interface files */ | |
2185696d | 1171 | for (i = 0; i < ARRAY_SIZE(vt1211_in_attr_group); i++) { |
ab41319e | 1172 | if (ISVOLT(i, data->uch_config)) { |
2185696d GR |
1173 | err = sysfs_create_group(&dev->kobj, |
1174 | &vt1211_in_attr_group[i]); | |
1175 | if (err) | |
ab41319e | 1176 | goto EXIT_DEV_REMOVE; |
ab41319e JH |
1177 | } |
1178 | } | |
2185696d | 1179 | for (i = 0; i < ARRAY_SIZE(vt1211_temp_attr_group); i++) { |
ab41319e | 1180 | if (ISTEMP(i, data->uch_config)) { |
2185696d GR |
1181 | err = sysfs_create_group(&dev->kobj, |
1182 | &vt1211_temp_attr_group[i]); | |
1183 | if (err) | |
ab41319e | 1184 | goto EXIT_DEV_REMOVE; |
ab41319e JH |
1185 | } |
1186 | } | |
1187 | for (i = 0; i < ARRAY_SIZE(vt1211_sysfs_fan_pwm); i++) { | |
1188 | err = device_create_file(dev, | |
1189 | &vt1211_sysfs_fan_pwm[i].dev_attr); | |
b162c033 | 1190 | if (err) |
ab41319e | 1191 | goto EXIT_DEV_REMOVE; |
ab41319e JH |
1192 | } |
1193 | for (i = 0; i < ARRAY_SIZE(vt1211_sysfs_misc); i++) { | |
1194 | err = device_create_file(dev, | |
1195 | &vt1211_sysfs_misc[i]); | |
b162c033 | 1196 | if (err) |
ab41319e | 1197 | goto EXIT_DEV_REMOVE; |
ab41319e JH |
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); | |
ab41319e JH |
1214 | return err; |
1215 | } | |
1216 | ||
281dfd0b | 1217 | static int vt1211_remove(struct platform_device *pdev) |
ab41319e JH |
1218 | { |
1219 | struct vt1211_data *data = platform_get_drvdata(pdev); | |
1220 | ||
1beeffe4 | 1221 | hwmon_device_unregister(data->hwmon_dev); |
ab41319e | 1222 | vt1211_remove_sysfs(pdev); |
ce7ee4e8 | 1223 | |
ab41319e JH |
1224 | return 0; |
1225 | } | |
1226 | ||
1227 | static struct platform_driver vt1211_driver = { | |
1228 | .driver = { | |
ab41319e JH |
1229 | .name = DRVNAME, |
1230 | }, | |
1231 | .probe = vt1211_probe, | |
9e5e9b7a | 1232 | .remove = vt1211_remove, |
ab41319e JH |
1233 | }; |
1234 | ||
1235 | static int __init vt1211_device_add(unsigned short address) | |
1236 | { | |
1237 | struct resource res = { | |
1238 | .start = address, | |
1239 | .end = address + 0x7f, | |
1240 | .flags = IORESOURCE_IO, | |
1241 | }; | |
1242 | int err; | |
1243 | ||
1244 | pdev = platform_device_alloc(DRVNAME, address); | |
1245 | if (!pdev) { | |
1246 | err = -ENOMEM; | |
5ed9ba6b | 1247 | pr_err("Device allocation failed (%d)\n", err); |
ab41319e JH |
1248 | goto EXIT; |
1249 | } | |
1250 | ||
1251 | res.name = pdev->name; | |
b9acb64a JD |
1252 | err = acpi_check_resource_conflict(&res); |
1253 | if (err) | |
18632f84 | 1254 | goto EXIT_DEV_PUT; |
b9acb64a | 1255 | |
ab41319e JH |
1256 | err = platform_device_add_resources(pdev, &res, 1); |
1257 | if (err) { | |
5ed9ba6b | 1258 | pr_err("Device resource addition failed (%d)\n", err); |
ab41319e JH |
1259 | goto EXIT_DEV_PUT; |
1260 | } | |
1261 | ||
1262 | err = platform_device_add(pdev); | |
1263 | if (err) { | |
5ed9ba6b | 1264 | pr_err("Device addition failed (%d)\n", err); |
ab41319e JH |
1265 | goto EXIT_DEV_PUT; |
1266 | } | |
1267 | ||
1268 | return 0; | |
1269 | ||
1270 | EXIT_DEV_PUT: | |
1271 | platform_device_put(pdev); | |
1272 | EXIT: | |
1273 | return err; | |
1274 | } | |
1275 | ||
2219cd81 | 1276 | static int __init vt1211_find(int sio_cip, unsigned short *address) |
ab41319e | 1277 | { |
14b97ba5 | 1278 | int err; |
67b671bc | 1279 | int devid; |
ab41319e | 1280 | |
14b97ba5 GR |
1281 | err = superio_enter(sio_cip); |
1282 | if (err) | |
1283 | return err; | |
ab41319e | 1284 | |
14b97ba5 | 1285 | err = -ENODEV; |
67b671bc | 1286 | devid = force_id ? force_id : superio_inb(sio_cip, SIO_VT1211_DEVID); |
b162c033 | 1287 | if (devid != SIO_VT1211_ID) |
ab41319e | 1288 | goto EXIT; |
ab41319e | 1289 | |
2219cd81 | 1290 | superio_select(sio_cip, SIO_VT1211_LDN_HWMON); |
ab41319e | 1291 | |
2219cd81 | 1292 | if ((superio_inb(sio_cip, SIO_VT1211_ACTIVE) & 1) == 0) { |
5ed9ba6b | 1293 | pr_warn("HW monitor is disabled, skipping\n"); |
ab41319e JH |
1294 | goto EXIT; |
1295 | } | |
1296 | ||
2219cd81 JH |
1297 | *address = ((superio_inb(sio_cip, SIO_VT1211_BADDR) << 8) | |
1298 | (superio_inb(sio_cip, SIO_VT1211_BADDR + 1))) & 0xff00; | |
ab41319e | 1299 | if (*address == 0) { |
5ed9ba6b | 1300 | pr_warn("Base address is not set, skipping\n"); |
ab41319e JH |
1301 | goto EXIT; |
1302 | } | |
1303 | ||
1304 | err = 0; | |
5ed9ba6b JP |
1305 | pr_info("Found VT1211 chip at 0x%04x, revision %u\n", |
1306 | *address, superio_inb(sio_cip, SIO_VT1211_DEVREV)); | |
ab41319e JH |
1307 | |
1308 | EXIT: | |
2219cd81 | 1309 | superio_exit(sio_cip); |
ab41319e JH |
1310 | return err; |
1311 | } | |
1312 | ||
1313 | static int __init vt1211_init(void) | |
1314 | { | |
1315 | int err; | |
1316 | unsigned short address = 0; | |
1317 | ||
b162c033 GR |
1318 | err = vt1211_find(SIO_REG_CIP1, &address); |
1319 | if (err) { | |
1320 | err = vt1211_find(SIO_REG_CIP2, &address); | |
1321 | if (err) | |
1322 | goto EXIT; | |
ab41319e JH |
1323 | } |
1324 | ||
1325 | if ((uch_config < -1) || (uch_config > 31)) { | |
1326 | err = -EINVAL; | |
b55f3757 GR |
1327 | pr_warn("Invalid UCH configuration %d. Choose a value between 0 and 31.\n", |
1328 | uch_config); | |
b162c033 | 1329 | goto EXIT; |
ab41319e JH |
1330 | } |
1331 | ||
1332 | if ((int_mode < -1) || (int_mode > 0)) { | |
1333 | err = -EINVAL; | |
b55f3757 GR |
1334 | pr_warn("Invalid interrupt mode %d. Only mode 0 is supported.\n", |
1335 | int_mode); | |
b162c033 | 1336 | goto EXIT; |
ab41319e JH |
1337 | } |
1338 | ||
1339 | err = platform_driver_register(&vt1211_driver); | |
b162c033 | 1340 | if (err) |
ab41319e | 1341 | goto EXIT; |
ab41319e JH |
1342 | |
1343 | /* Sets global pdev as a side effect */ | |
1344 | err = vt1211_device_add(address); | |
b162c033 | 1345 | if (err) |
ab41319e | 1346 | goto EXIT_DRV_UNREGISTER; |
ab41319e JH |
1347 | |
1348 | return 0; | |
1349 | ||
1350 | EXIT_DRV_UNREGISTER: | |
1351 | platform_driver_unregister(&vt1211_driver); | |
1352 | EXIT: | |
1353 | return err; | |
1354 | } | |
1355 | ||
1356 | static void __exit vt1211_exit(void) | |
1357 | { | |
1358 | platform_device_unregister(pdev); | |
1359 | platform_driver_unregister(&vt1211_driver); | |
1360 | } | |
1361 | ||
1362 | MODULE_AUTHOR("Juerg Haefliger <juergh@gmail.com>"); | |
1363 | MODULE_DESCRIPTION("VT1211 sensors"); | |
1364 | MODULE_LICENSE("GPL"); | |
1365 | ||
1366 | module_init(vt1211_init); | |
1367 | module_exit(vt1211_exit); |