Commit | Line | Data |
---|---|---|
74ba9207 | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
1de9e371 | 2 | /* |
61ba0318 GR |
3 | * vt8231.c - Part of lm_sensors, Linux kernel modules |
4 | * for hardware monitoring | |
5 | * | |
6 | * Copyright (c) 2005 Roger Lucas <vt8231@hiddenengine.co.uk> | |
7 | * Copyright (c) 2002 Mark D. Studebaker <mdsxyz123@yahoo.com> | |
8 | * Aaron M. Marsh <amarsh@sdf.lonestar.org> | |
61ba0318 | 9 | */ |
1de9e371 | 10 | |
61ba0318 GR |
11 | /* |
12 | * Supports VIA VT8231 South Bridge embedded sensors | |
13 | */ | |
1de9e371 | 14 | |
9d72be0d JP |
15 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
16 | ||
1de9e371 RL |
17 | #include <linux/module.h> |
18 | #include <linux/init.h> | |
19 | #include <linux/slab.h> | |
20 | #include <linux/pci.h> | |
21 | #include <linux/jiffies.h> | |
ec5e1a4b | 22 | #include <linux/platform_device.h> |
1de9e371 RL |
23 | #include <linux/hwmon.h> |
24 | #include <linux/hwmon-sysfs.h> | |
25 | #include <linux/hwmon-vid.h> | |
26 | #include <linux/err.h> | |
9a61bf63 | 27 | #include <linux/mutex.h> |
b9acb64a | 28 | #include <linux/acpi.h> |
6055fae8 | 29 | #include <linux/io.h> |
1de9e371 RL |
30 | |
31 | static int force_addr; | |
32 | module_param(force_addr, int, 0); | |
33 | MODULE_PARM_DESC(force_addr, "Initialize the base address of the sensors"); | |
34 | ||
ec5e1a4b | 35 | static struct platform_device *pdev; |
1de9e371 RL |
36 | |
37 | #define VT8231_EXTENT 0x80 | |
38 | #define VT8231_BASE_REG 0x70 | |
39 | #define VT8231_ENABLE_REG 0x74 | |
40 | ||
61ba0318 GR |
41 | /* |
42 | * The VT8231 registers | |
43 | * | |
44 | * The reset value for the input channel configuration is used (Reg 0x4A=0x07) | |
45 | * which sets the selected inputs marked with '*' below if multiple options are | |
46 | * possible: | |
47 | * | |
48 | * Voltage Mode Temperature Mode | |
49 | * Sensor Linux Id Linux Id VIA Id | |
50 | * -------- -------- -------- ------ | |
51 | * CPU Diode N/A temp1 0 | |
52 | * UIC1 in0 temp2 * 1 | |
53 | * UIC2 in1 * temp3 2 | |
54 | * UIC3 in2 * temp4 3 | |
55 | * UIC4 in3 * temp5 4 | |
56 | * UIC5 in4 * temp6 5 | |
57 | * 3.3V in5 N/A | |
58 | * | |
59 | * Note that the BIOS may set the configuration register to a different value | |
60 | * to match the motherboard configuration. | |
61 | */ | |
1de9e371 RL |
62 | |
63 | /* fans numbered 0-1 */ | |
64 | #define VT8231_REG_FAN_MIN(nr) (0x3b + (nr)) | |
65 | #define VT8231_REG_FAN(nr) (0x29 + (nr)) | |
66 | ||
67 | /* Voltage inputs numbered 0-5 */ | |
68 | ||
69 | static const u8 regvolt[] = { 0x21, 0x22, 0x23, 0x24, 0x25, 0x26 }; | |
70 | static const u8 regvoltmax[] = { 0x3d, 0x2b, 0x2d, 0x2f, 0x31, 0x33 }; | |
71 | static const u8 regvoltmin[] = { 0x3e, 0x2c, 0x2e, 0x30, 0x32, 0x34 }; | |
72 | ||
61ba0318 GR |
73 | /* |
74 | * Temperatures are numbered 1-6 according to the Linux kernel specification. | |
75 | * | |
76 | * In the VIA datasheet, however, the temperatures are numbered from zero. | |
77 | * Since it is important that this driver can easily be compared to the VIA | |
78 | * datasheet, we will use the VIA numbering within this driver and map the | |
79 | * kernel sysfs device name to the VIA number in the sysfs callback. | |
80 | */ | |
1de9e371 RL |
81 | |
82 | #define VT8231_REG_TEMP_LOW01 0x49 | |
83 | #define VT8231_REG_TEMP_LOW25 0x4d | |
84 | ||
85 | static const u8 regtemp[] = { 0x1f, 0x21, 0x22, 0x23, 0x24, 0x25 }; | |
86 | static const u8 regtempmax[] = { 0x39, 0x3d, 0x2b, 0x2d, 0x2f, 0x31 }; | |
87 | static const u8 regtempmin[] = { 0x3a, 0x3e, 0x2c, 0x2e, 0x30, 0x32 }; | |
88 | ||
89 | #define TEMP_FROM_REG(reg) (((253 * 4 - (reg)) * 550 + 105) / 210) | |
90 | #define TEMP_MAXMIN_FROM_REG(reg) (((253 - (reg)) * 2200 + 105) / 210) | |
91 | #define TEMP_MAXMIN_TO_REG(val) (253 - ((val) * 210 + 1100) / 2200) | |
92 | ||
93 | #define VT8231_REG_CONFIG 0x40 | |
94 | #define VT8231_REG_ALARM1 0x41 | |
95 | #define VT8231_REG_ALARM2 0x42 | |
96 | #define VT8231_REG_FANDIV 0x47 | |
97 | #define VT8231_REG_UCH_CONFIG 0x4a | |
98 | #define VT8231_REG_TEMP1_CONFIG 0x4b | |
99 | #define VT8231_REG_TEMP2_CONFIG 0x4c | |
100 | ||
61ba0318 GR |
101 | /* |
102 | * temps 0-5 as numbered in VIA datasheet - see later for mapping to Linux | |
103 | * numbering | |
104 | */ | |
1de9e371 RL |
105 | #define ISTEMP(i, ch_config) ((i) == 0 ? 1 : \ |
106 | ((ch_config) >> ((i)+1)) & 0x01) | |
107 | /* voltages 0-5 */ | |
108 | #define ISVOLT(i, ch_config) ((i) == 5 ? 1 : \ | |
109 | !(((ch_config) >> ((i)+2)) & 0x01)) | |
110 | ||
111 | #define DIV_FROM_REG(val) (1 << (val)) | |
112 | ||
61ba0318 GR |
113 | /* |
114 | * NB The values returned here are NOT temperatures. The calibration curves | |
115 | * for the thermistor curves are board-specific and must go in the | |
116 | * sensors.conf file. Temperature sensors are actually ten bits, but the | |
117 | * VIA datasheet only considers the 8 MSBs obtained from the regtemp[] | |
118 | * register. The temperature value returned should have a magnitude of 3, | |
119 | * so we use the VIA scaling as the "true" scaling and use the remaining 2 | |
120 | * LSBs as fractional precision. | |
121 | * | |
122 | * All the on-chip hardware temperature comparisons for the alarms are only | |
123 | * 8-bits wide, and compare against the 8 MSBs of the temperature. The bits | |
124 | * in the registers VT8231_REG_TEMP_LOW01 and VT8231_REG_TEMP_LOW25 are | |
125 | * ignored. | |
126 | */ | |
127 | ||
128 | /* | |
129 | ****** FAN RPM CONVERSIONS ******** | |
130 | * This chip saturates back at 0, not at 255 like many the other chips. | |
131 | * So, 0 means 0 RPM | |
132 | */ | |
1de9e371 RL |
133 | static inline u8 FAN_TO_REG(long rpm, int div) |
134 | { | |
3806b45b | 135 | if (rpm <= 0 || rpm > 1310720) |
1de9e371 | 136 | return 0; |
2a844c14 | 137 | return clamp_val(1310720 / (rpm * div), 1, 255); |
1de9e371 RL |
138 | } |
139 | ||
140 | #define FAN_FROM_REG(val, div) ((val) == 0 ? 0 : 1310720 / ((val) * (div))) | |
141 | ||
142 | struct vt8231_data { | |
ec5e1a4b RL |
143 | unsigned short addr; |
144 | const char *name; | |
145 | ||
9a61bf63 | 146 | struct mutex update_lock; |
1beeffe4 | 147 | struct device *hwmon_dev; |
1de9e371 RL |
148 | char valid; /* !=0 if following fields are valid */ |
149 | unsigned long last_updated; /* In jiffies */ | |
150 | ||
151 | u8 in[6]; /* Register value */ | |
152 | u8 in_max[6]; /* Register value */ | |
153 | u8 in_min[6]; /* Register value */ | |
154 | u16 temp[6]; /* Register value 10 bit, right aligned */ | |
155 | u8 temp_max[6]; /* Register value */ | |
156 | u8 temp_min[6]; /* Register value */ | |
157 | u8 fan[2]; /* Register value */ | |
158 | u8 fan_min[2]; /* Register value */ | |
159 | u8 fan_div[2]; /* Register encoding, shifted right */ | |
160 | u16 alarms; /* Register encoding */ | |
161 | u8 uch_config; | |
162 | }; | |
163 | ||
164 | static struct pci_dev *s_bridge; | |
ec5e1a4b | 165 | static int vt8231_probe(struct platform_device *pdev); |
281dfd0b | 166 | static int vt8231_remove(struct platform_device *pdev); |
1de9e371 | 167 | static struct vt8231_data *vt8231_update_device(struct device *dev); |
ec5e1a4b | 168 | static void vt8231_init_device(struct vt8231_data *data); |
1de9e371 | 169 | |
ec5e1a4b | 170 | static inline int vt8231_read_value(struct vt8231_data *data, u8 reg) |
1de9e371 | 171 | { |
ec5e1a4b | 172 | return inb_p(data->addr + reg); |
1de9e371 RL |
173 | } |
174 | ||
ec5e1a4b | 175 | static inline void vt8231_write_value(struct vt8231_data *data, u8 reg, |
1de9e371 RL |
176 | u8 value) |
177 | { | |
ec5e1a4b | 178 | outb_p(value, data->addr + reg); |
1de9e371 RL |
179 | } |
180 | ||
181 | /* following are the sysfs callback functions */ | |
08ea5a87 GR |
182 | static ssize_t in_show(struct device *dev, struct device_attribute *attr, |
183 | char *buf) | |
1de9e371 RL |
184 | { |
185 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); | |
186 | int nr = sensor_attr->index; | |
187 | struct vt8231_data *data = vt8231_update_device(dev); | |
188 | ||
189 | return sprintf(buf, "%d\n", ((data->in[nr] - 3) * 10000) / 958); | |
190 | } | |
191 | ||
08ea5a87 GR |
192 | static ssize_t in_min_show(struct device *dev, struct device_attribute *attr, |
193 | char *buf) | |
1de9e371 RL |
194 | { |
195 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); | |
196 | int nr = sensor_attr->index; | |
197 | struct vt8231_data *data = vt8231_update_device(dev); | |
198 | ||
199 | return sprintf(buf, "%d\n", ((data->in_min[nr] - 3) * 10000) / 958); | |
200 | } | |
201 | ||
08ea5a87 GR |
202 | static ssize_t in_max_show(struct device *dev, struct device_attribute *attr, |
203 | char *buf) | |
1de9e371 RL |
204 | { |
205 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); | |
206 | int nr = sensor_attr->index; | |
207 | struct vt8231_data *data = vt8231_update_device(dev); | |
208 | ||
209 | return sprintf(buf, "%d\n", (((data->in_max[nr] - 3) * 10000) / 958)); | |
210 | } | |
211 | ||
08ea5a87 GR |
212 | static ssize_t in_min_store(struct device *dev, struct device_attribute *attr, |
213 | const char *buf, size_t count) | |
1de9e371 RL |
214 | { |
215 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); | |
216 | int nr = sensor_attr->index; | |
ec5e1a4b | 217 | struct vt8231_data *data = dev_get_drvdata(dev); |
65fe5c79 GR |
218 | unsigned long val; |
219 | int err; | |
220 | ||
221 | err = kstrtoul(buf, 10, &val); | |
222 | if (err) | |
223 | return err; | |
1de9e371 | 224 | |
9a61bf63 | 225 | mutex_lock(&data->update_lock); |
2a844c14 | 226 | data->in_min[nr] = clamp_val(((val * 958) / 10000) + 3, 0, 255); |
ec5e1a4b | 227 | vt8231_write_value(data, regvoltmin[nr], data->in_min[nr]); |
9a61bf63 | 228 | mutex_unlock(&data->update_lock); |
1de9e371 RL |
229 | return count; |
230 | } | |
231 | ||
08ea5a87 GR |
232 | static ssize_t in_max_store(struct device *dev, struct device_attribute *attr, |
233 | const char *buf, size_t count) | |
1de9e371 RL |
234 | { |
235 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); | |
236 | int nr = sensor_attr->index; | |
ec5e1a4b | 237 | struct vt8231_data *data = dev_get_drvdata(dev); |
65fe5c79 GR |
238 | unsigned long val; |
239 | int err; | |
240 | ||
241 | err = kstrtoul(buf, 10, &val); | |
242 | if (err) | |
243 | return err; | |
1de9e371 | 244 | |
9a61bf63 | 245 | mutex_lock(&data->update_lock); |
2a844c14 | 246 | data->in_max[nr] = clamp_val(((val * 958) / 10000) + 3, 0, 255); |
ec5e1a4b | 247 | vt8231_write_value(data, regvoltmax[nr], data->in_max[nr]); |
9a61bf63 | 248 | mutex_unlock(&data->update_lock); |
1de9e371 RL |
249 | return count; |
250 | } | |
251 | ||
252 | /* Special case for input 5 as this has 3.3V scaling built into the chip */ | |
d5034db6 JL |
253 | static ssize_t in5_input_show(struct device *dev, |
254 | struct device_attribute *attr, char *buf) | |
1de9e371 RL |
255 | { |
256 | struct vt8231_data *data = vt8231_update_device(dev); | |
257 | ||
258 | return sprintf(buf, "%d\n", | |
259 | (((data->in[5] - 3) * 10000 * 54) / (958 * 34))); | |
260 | } | |
261 | ||
d5034db6 | 262 | static ssize_t in5_min_show(struct device *dev, struct device_attribute *attr, |
1de9e371 RL |
263 | char *buf) |
264 | { | |
265 | struct vt8231_data *data = vt8231_update_device(dev); | |
266 | ||
267 | return sprintf(buf, "%d\n", | |
268 | (((data->in_min[5] - 3) * 10000 * 54) / (958 * 34))); | |
269 | } | |
270 | ||
d5034db6 | 271 | static ssize_t in5_max_show(struct device *dev, struct device_attribute *attr, |
1de9e371 RL |
272 | char *buf) |
273 | { | |
274 | struct vt8231_data *data = vt8231_update_device(dev); | |
275 | ||
276 | return sprintf(buf, "%d\n", | |
277 | (((data->in_max[5] - 3) * 10000 * 54) / (958 * 34))); | |
278 | } | |
279 | ||
d5034db6 JL |
280 | static ssize_t in5_min_store(struct device *dev, |
281 | struct device_attribute *attr, const char *buf, | |
282 | size_t count) | |
1de9e371 | 283 | { |
ec5e1a4b | 284 | struct vt8231_data *data = dev_get_drvdata(dev); |
65fe5c79 GR |
285 | unsigned long val; |
286 | int err; | |
287 | ||
288 | err = kstrtoul(buf, 10, &val); | |
289 | if (err) | |
290 | return err; | |
1de9e371 | 291 | |
9a61bf63 | 292 | mutex_lock(&data->update_lock); |
2a844c14 GR |
293 | data->in_min[5] = clamp_val(((val * 958 * 34) / (10000 * 54)) + 3, |
294 | 0, 255); | |
ec5e1a4b | 295 | vt8231_write_value(data, regvoltmin[5], data->in_min[5]); |
9a61bf63 | 296 | mutex_unlock(&data->update_lock); |
1de9e371 RL |
297 | return count; |
298 | } | |
299 | ||
d5034db6 JL |
300 | static ssize_t in5_max_store(struct device *dev, |
301 | struct device_attribute *attr, const char *buf, | |
302 | size_t count) | |
1de9e371 | 303 | { |
ec5e1a4b | 304 | struct vt8231_data *data = dev_get_drvdata(dev); |
65fe5c79 GR |
305 | unsigned long val; |
306 | int err; | |
307 | ||
308 | err = kstrtoul(buf, 10, &val); | |
309 | if (err) | |
310 | return err; | |
1de9e371 | 311 | |
9a61bf63 | 312 | mutex_lock(&data->update_lock); |
2a844c14 GR |
313 | data->in_max[5] = clamp_val(((val * 958 * 34) / (10000 * 54)) + 3, |
314 | 0, 255); | |
ec5e1a4b | 315 | vt8231_write_value(data, regvoltmax[5], data->in_max[5]); |
9a61bf63 | 316 | mutex_unlock(&data->update_lock); |
1de9e371 RL |
317 | return count; |
318 | } | |
319 | ||
08ea5a87 GR |
320 | static SENSOR_DEVICE_ATTR_RO(in0_input, in, 0); |
321 | static SENSOR_DEVICE_ATTR_RW(in0_min, in_min, 0); | |
322 | static SENSOR_DEVICE_ATTR_RW(in0_max, in_max, 0); | |
323 | static SENSOR_DEVICE_ATTR_RO(in1_input, in, 1); | |
324 | static SENSOR_DEVICE_ATTR_RW(in1_min, in_min, 1); | |
325 | static SENSOR_DEVICE_ATTR_RW(in1_max, in_max, 1); | |
326 | static SENSOR_DEVICE_ATTR_RO(in2_input, in, 2); | |
327 | static SENSOR_DEVICE_ATTR_RW(in2_min, in_min, 2); | |
328 | static SENSOR_DEVICE_ATTR_RW(in2_max, in_max, 2); | |
329 | static SENSOR_DEVICE_ATTR_RO(in3_input, in, 3); | |
330 | static SENSOR_DEVICE_ATTR_RW(in3_min, in_min, 3); | |
331 | static SENSOR_DEVICE_ATTR_RW(in3_max, in_max, 3); | |
332 | static SENSOR_DEVICE_ATTR_RO(in4_input, in, 4); | |
333 | static SENSOR_DEVICE_ATTR_RW(in4_min, in_min, 4); | |
334 | static SENSOR_DEVICE_ATTR_RW(in4_max, in_max, 4); | |
1de9e371 | 335 | |
d5034db6 JL |
336 | static DEVICE_ATTR_RO(in5_input); |
337 | static DEVICE_ATTR_RW(in5_min); | |
338 | static DEVICE_ATTR_RW(in5_max); | |
1de9e371 RL |
339 | |
340 | /* Temperatures */ | |
d5034db6 JL |
341 | static ssize_t temp1_input_show(struct device *dev, |
342 | struct device_attribute *attr, char *buf) | |
1de9e371 RL |
343 | { |
344 | struct vt8231_data *data = vt8231_update_device(dev); | |
345 | return sprintf(buf, "%d\n", data->temp[0] * 250); | |
346 | } | |
347 | ||
d5034db6 | 348 | static ssize_t temp1_max_show(struct device *dev, struct device_attribute *attr, |
1de9e371 RL |
349 | char *buf) |
350 | { | |
351 | struct vt8231_data *data = vt8231_update_device(dev); | |
352 | return sprintf(buf, "%d\n", data->temp_max[0] * 1000); | |
353 | } | |
354 | ||
d5034db6 JL |
355 | static ssize_t temp1_max_hyst_show(struct device *dev, |
356 | struct device_attribute *attr, char *buf) | |
1de9e371 RL |
357 | { |
358 | struct vt8231_data *data = vt8231_update_device(dev); | |
359 | return sprintf(buf, "%d\n", data->temp_min[0] * 1000); | |
360 | } | |
361 | ||
d5034db6 JL |
362 | static ssize_t temp1_max_store(struct device *dev, |
363 | struct device_attribute *attr, const char *buf, | |
364 | size_t count) | |
1de9e371 | 365 | { |
ec5e1a4b | 366 | struct vt8231_data *data = dev_get_drvdata(dev); |
65fe5c79 GR |
367 | long val; |
368 | int err; | |
369 | ||
370 | err = kstrtol(buf, 10, &val); | |
371 | if (err) | |
372 | return err; | |
1de9e371 | 373 | |
9a61bf63 | 374 | mutex_lock(&data->update_lock); |
2a844c14 | 375 | data->temp_max[0] = clamp_val((val + 500) / 1000, 0, 255); |
ec5e1a4b | 376 | vt8231_write_value(data, regtempmax[0], data->temp_max[0]); |
9a61bf63 | 377 | mutex_unlock(&data->update_lock); |
1de9e371 RL |
378 | return count; |
379 | } | |
d5034db6 JL |
380 | static ssize_t temp1_max_hyst_store(struct device *dev, |
381 | struct device_attribute *attr, | |
382 | const char *buf, size_t count) | |
1de9e371 | 383 | { |
ec5e1a4b | 384 | struct vt8231_data *data = dev_get_drvdata(dev); |
65fe5c79 GR |
385 | long val; |
386 | int err; | |
387 | ||
388 | err = kstrtol(buf, 10, &val); | |
389 | if (err) | |
390 | return err; | |
1de9e371 | 391 | |
9a61bf63 | 392 | mutex_lock(&data->update_lock); |
2a844c14 | 393 | data->temp_min[0] = clamp_val((val + 500) / 1000, 0, 255); |
ec5e1a4b | 394 | vt8231_write_value(data, regtempmin[0], data->temp_min[0]); |
9a61bf63 | 395 | mutex_unlock(&data->update_lock); |
1de9e371 RL |
396 | return count; |
397 | } | |
398 | ||
08ea5a87 GR |
399 | static ssize_t temp_show(struct device *dev, struct device_attribute *attr, |
400 | char *buf) | |
1de9e371 RL |
401 | { |
402 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); | |
403 | int nr = sensor_attr->index; | |
404 | struct vt8231_data *data = vt8231_update_device(dev); | |
405 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[nr])); | |
406 | } | |
407 | ||
08ea5a87 GR |
408 | static ssize_t temp_max_show(struct device *dev, |
409 | struct device_attribute *attr, char *buf) | |
1de9e371 RL |
410 | { |
411 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); | |
412 | int nr = sensor_attr->index; | |
413 | struct vt8231_data *data = vt8231_update_device(dev); | |
414 | return sprintf(buf, "%d\n", TEMP_MAXMIN_FROM_REG(data->temp_max[nr])); | |
415 | } | |
416 | ||
08ea5a87 GR |
417 | static ssize_t temp_min_show(struct device *dev, |
418 | struct device_attribute *attr, char *buf) | |
1de9e371 RL |
419 | { |
420 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); | |
421 | int nr = sensor_attr->index; | |
422 | struct vt8231_data *data = vt8231_update_device(dev); | |
423 | return sprintf(buf, "%d\n", TEMP_MAXMIN_FROM_REG(data->temp_min[nr])); | |
424 | } | |
425 | ||
08ea5a87 GR |
426 | static ssize_t temp_max_store(struct device *dev, |
427 | struct device_attribute *attr, const char *buf, | |
428 | size_t count) | |
1de9e371 RL |
429 | { |
430 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); | |
431 | int nr = sensor_attr->index; | |
ec5e1a4b | 432 | struct vt8231_data *data = dev_get_drvdata(dev); |
65fe5c79 GR |
433 | long val; |
434 | int err; | |
435 | ||
436 | err = kstrtol(buf, 10, &val); | |
437 | if (err) | |
438 | return err; | |
1de9e371 | 439 | |
9a61bf63 | 440 | mutex_lock(&data->update_lock); |
2a844c14 | 441 | data->temp_max[nr] = clamp_val(TEMP_MAXMIN_TO_REG(val), 0, 255); |
ec5e1a4b | 442 | vt8231_write_value(data, regtempmax[nr], data->temp_max[nr]); |
9a61bf63 | 443 | mutex_unlock(&data->update_lock); |
1de9e371 RL |
444 | return count; |
445 | } | |
08ea5a87 GR |
446 | static ssize_t temp_min_store(struct device *dev, |
447 | struct device_attribute *attr, const char *buf, | |
448 | size_t count) | |
1de9e371 RL |
449 | { |
450 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); | |
451 | int nr = sensor_attr->index; | |
ec5e1a4b | 452 | struct vt8231_data *data = dev_get_drvdata(dev); |
65fe5c79 GR |
453 | long val; |
454 | int err; | |
455 | ||
456 | err = kstrtol(buf, 10, &val); | |
457 | if (err) | |
458 | return err; | |
1de9e371 | 459 | |
9a61bf63 | 460 | mutex_lock(&data->update_lock); |
2a844c14 | 461 | data->temp_min[nr] = clamp_val(TEMP_MAXMIN_TO_REG(val), 0, 255); |
ec5e1a4b | 462 | vt8231_write_value(data, regtempmin[nr], data->temp_min[nr]); |
9a61bf63 | 463 | mutex_unlock(&data->update_lock); |
1de9e371 RL |
464 | return count; |
465 | } | |
466 | ||
61ba0318 GR |
467 | /* |
468 | * Note that these map the Linux temperature sensor numbering (1-6) to the VIA | |
469 | * temperature sensor numbering (0-5) | |
470 | */ | |
1de9e371 | 471 | |
d5034db6 JL |
472 | static DEVICE_ATTR_RO(temp1_input); |
473 | static DEVICE_ATTR_RW(temp1_max); | |
474 | static DEVICE_ATTR_RW(temp1_max_hyst); | |
1de9e371 | 475 | |
08ea5a87 GR |
476 | static SENSOR_DEVICE_ATTR_RO(temp2_input, temp, 1); |
477 | static SENSOR_DEVICE_ATTR_RW(temp2_max, temp_max, 1); | |
478 | static SENSOR_DEVICE_ATTR_RW(temp2_max_hyst, temp_min, 1); | |
479 | static SENSOR_DEVICE_ATTR_RO(temp3_input, temp, 2); | |
480 | static SENSOR_DEVICE_ATTR_RW(temp3_max, temp_max, 2); | |
481 | static SENSOR_DEVICE_ATTR_RW(temp3_max_hyst, temp_min, 2); | |
482 | static SENSOR_DEVICE_ATTR_RO(temp4_input, temp, 3); | |
483 | static SENSOR_DEVICE_ATTR_RW(temp4_max, temp_max, 3); | |
484 | static SENSOR_DEVICE_ATTR_RW(temp4_max_hyst, temp_min, 3); | |
485 | static SENSOR_DEVICE_ATTR_RO(temp5_input, temp, 4); | |
486 | static SENSOR_DEVICE_ATTR_RW(temp5_max, temp_max, 4); | |
487 | static SENSOR_DEVICE_ATTR_RW(temp5_max_hyst, temp_min, 4); | |
488 | static SENSOR_DEVICE_ATTR_RO(temp6_input, temp, 5); | |
489 | static SENSOR_DEVICE_ATTR_RW(temp6_max, temp_max, 5); | |
490 | static SENSOR_DEVICE_ATTR_RW(temp6_max_hyst, temp_min, 5); | |
1de9e371 | 491 | |
1de9e371 | 492 | /* Fans */ |
08ea5a87 GR |
493 | static ssize_t fan_show(struct device *dev, struct device_attribute *attr, |
494 | char *buf) | |
1de9e371 RL |
495 | { |
496 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); | |
497 | int nr = sensor_attr->index; | |
498 | struct vt8231_data *data = vt8231_update_device(dev); | |
499 | return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[nr], | |
500 | DIV_FROM_REG(data->fan_div[nr]))); | |
501 | } | |
502 | ||
08ea5a87 GR |
503 | static ssize_t fan_min_show(struct device *dev, struct device_attribute *attr, |
504 | char *buf) | |
1de9e371 RL |
505 | { |
506 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); | |
507 | int nr = sensor_attr->index; | |
508 | struct vt8231_data *data = vt8231_update_device(dev); | |
509 | return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[nr], | |
510 | DIV_FROM_REG(data->fan_div[nr]))); | |
511 | } | |
512 | ||
08ea5a87 GR |
513 | static ssize_t fan_div_show(struct device *dev, struct device_attribute *attr, |
514 | char *buf) | |
1de9e371 RL |
515 | { |
516 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); | |
517 | int nr = sensor_attr->index; | |
518 | struct vt8231_data *data = vt8231_update_device(dev); | |
519 | return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[nr])); | |
520 | } | |
521 | ||
08ea5a87 GR |
522 | static ssize_t fan_min_store(struct device *dev, |
523 | struct device_attribute *attr, const char *buf, | |
524 | size_t count) | |
1de9e371 RL |
525 | { |
526 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); | |
527 | int nr = sensor_attr->index; | |
ec5e1a4b | 528 | struct vt8231_data *data = dev_get_drvdata(dev); |
65fe5c79 GR |
529 | unsigned long val; |
530 | int err; | |
531 | ||
532 | err = kstrtoul(buf, 10, &val); | |
533 | if (err) | |
534 | return err; | |
1de9e371 | 535 | |
9a61bf63 | 536 | mutex_lock(&data->update_lock); |
1de9e371 | 537 | data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr])); |
ec5e1a4b | 538 | vt8231_write_value(data, VT8231_REG_FAN_MIN(nr), data->fan_min[nr]); |
9a61bf63 | 539 | mutex_unlock(&data->update_lock); |
1de9e371 RL |
540 | return count; |
541 | } | |
542 | ||
08ea5a87 GR |
543 | static ssize_t fan_div_store(struct device *dev, |
544 | struct device_attribute *attr, const char *buf, | |
545 | size_t count) | |
1de9e371 | 546 | { |
ec5e1a4b | 547 | struct vt8231_data *data = dev_get_drvdata(dev); |
1de9e371 | 548 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
65fe5c79 | 549 | unsigned long val; |
1de9e371 | 550 | int nr = sensor_attr->index; |
ec5e1a4b | 551 | int old = vt8231_read_value(data, VT8231_REG_FANDIV); |
1de9e371 RL |
552 | long min = FAN_FROM_REG(data->fan_min[nr], |
553 | DIV_FROM_REG(data->fan_div[nr])); | |
65fe5c79 GR |
554 | int err; |
555 | ||
556 | err = kstrtoul(buf, 10, &val); | |
557 | if (err) | |
558 | return err; | |
1de9e371 | 559 | |
9a61bf63 | 560 | mutex_lock(&data->update_lock); |
1de9e371 | 561 | switch (val) { |
65fe5c79 GR |
562 | case 1: |
563 | data->fan_div[nr] = 0; | |
564 | break; | |
565 | case 2: | |
566 | data->fan_div[nr] = 1; | |
567 | break; | |
568 | case 4: | |
569 | data->fan_div[nr] = 2; | |
570 | break; | |
571 | case 8: | |
572 | data->fan_div[nr] = 3; | |
573 | break; | |
1de9e371 | 574 | default: |
b55f3757 GR |
575 | dev_err(dev, |
576 | "fan_div value %ld not supported. Choose one of 1, 2, 4 or 8!\n", | |
577 | val); | |
9a61bf63 | 578 | mutex_unlock(&data->update_lock); |
1de9e371 RL |
579 | return -EINVAL; |
580 | } | |
581 | ||
582 | /* Correct the fan minimum speed */ | |
583 | data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr])); | |
ec5e1a4b | 584 | vt8231_write_value(data, VT8231_REG_FAN_MIN(nr), data->fan_min[nr]); |
1de9e371 RL |
585 | |
586 | old = (old & 0x0f) | (data->fan_div[1] << 6) | (data->fan_div[0] << 4); | |
ec5e1a4b | 587 | vt8231_write_value(data, VT8231_REG_FANDIV, old); |
9a61bf63 | 588 | mutex_unlock(&data->update_lock); |
1de9e371 RL |
589 | return count; |
590 | } | |
591 | ||
08ea5a87 GR |
592 | static SENSOR_DEVICE_ATTR_RO(fan1_input, fan, 0); |
593 | static SENSOR_DEVICE_ATTR_RW(fan1_min, fan_min, 0); | |
594 | static SENSOR_DEVICE_ATTR_RW(fan1_div, fan_div, 0); | |
595 | static SENSOR_DEVICE_ATTR_RO(fan2_input, fan, 1); | |
596 | static SENSOR_DEVICE_ATTR_RW(fan2_min, fan_min, 1); | |
597 | static SENSOR_DEVICE_ATTR_RW(fan2_div, fan_div, 1); | |
1de9e371 RL |
598 | |
599 | /* Alarms */ | |
d5034db6 | 600 | static ssize_t alarms_show(struct device *dev, struct device_attribute *attr, |
1de9e371 RL |
601 | char *buf) |
602 | { | |
603 | struct vt8231_data *data = vt8231_update_device(dev); | |
604 | return sprintf(buf, "%d\n", data->alarms); | |
605 | } | |
d5034db6 | 606 | static DEVICE_ATTR_RO(alarms); |
1de9e371 | 607 | |
08ea5a87 | 608 | static ssize_t alarm_show(struct device *dev, struct device_attribute *attr, |
2d1374ca JD |
609 | char *buf) |
610 | { | |
611 | int bitnr = to_sensor_dev_attr(attr)->index; | |
612 | struct vt8231_data *data = vt8231_update_device(dev); | |
613 | return sprintf(buf, "%u\n", (data->alarms >> bitnr) & 1); | |
614 | } | |
08ea5a87 GR |
615 | static SENSOR_DEVICE_ATTR_RO(temp1_alarm, alarm, 4); |
616 | static SENSOR_DEVICE_ATTR_RO(temp2_alarm, alarm, 11); | |
617 | static SENSOR_DEVICE_ATTR_RO(temp3_alarm, alarm, 0); | |
618 | static SENSOR_DEVICE_ATTR_RO(temp4_alarm, alarm, 1); | |
619 | static SENSOR_DEVICE_ATTR_RO(temp5_alarm, alarm, 3); | |
620 | static SENSOR_DEVICE_ATTR_RO(temp6_alarm, alarm, 8); | |
621 | static SENSOR_DEVICE_ATTR_RO(in0_alarm, alarm, 11); | |
622 | static SENSOR_DEVICE_ATTR_RO(in1_alarm, alarm, 0); | |
623 | static SENSOR_DEVICE_ATTR_RO(in2_alarm, alarm, 1); | |
624 | static SENSOR_DEVICE_ATTR_RO(in3_alarm, alarm, 3); | |
625 | static SENSOR_DEVICE_ATTR_RO(in4_alarm, alarm, 8); | |
626 | static SENSOR_DEVICE_ATTR_RO(in5_alarm, alarm, 2); | |
627 | static SENSOR_DEVICE_ATTR_RO(fan1_alarm, alarm, 6); | |
628 | static SENSOR_DEVICE_ATTR_RO(fan2_alarm, alarm, 7); | |
2d1374ca | 629 | |
d5034db6 | 630 | static ssize_t name_show(struct device *dev, struct device_attribute |
ec5e1a4b RL |
631 | *devattr, char *buf) |
632 | { | |
633 | struct vt8231_data *data = dev_get_drvdata(dev); | |
634 | return sprintf(buf, "%s\n", data->name); | |
635 | } | |
d5034db6 | 636 | static DEVICE_ATTR_RO(name); |
ec5e1a4b | 637 | |
2d1374ca | 638 | static struct attribute *vt8231_attributes_temps[6][5] = { |
cbeeb5b7 RL |
639 | { |
640 | &dev_attr_temp1_input.attr, | |
641 | &dev_attr_temp1_max_hyst.attr, | |
642 | &dev_attr_temp1_max.attr, | |
2d1374ca | 643 | &sensor_dev_attr_temp1_alarm.dev_attr.attr, |
cbeeb5b7 RL |
644 | NULL |
645 | }, { | |
646 | &sensor_dev_attr_temp2_input.dev_attr.attr, | |
647 | &sensor_dev_attr_temp2_max_hyst.dev_attr.attr, | |
648 | &sensor_dev_attr_temp2_max.dev_attr.attr, | |
2d1374ca | 649 | &sensor_dev_attr_temp2_alarm.dev_attr.attr, |
cbeeb5b7 RL |
650 | NULL |
651 | }, { | |
652 | &sensor_dev_attr_temp3_input.dev_attr.attr, | |
653 | &sensor_dev_attr_temp3_max_hyst.dev_attr.attr, | |
654 | &sensor_dev_attr_temp3_max.dev_attr.attr, | |
2d1374ca | 655 | &sensor_dev_attr_temp3_alarm.dev_attr.attr, |
cbeeb5b7 RL |
656 | NULL |
657 | }, { | |
658 | &sensor_dev_attr_temp4_input.dev_attr.attr, | |
659 | &sensor_dev_attr_temp4_max_hyst.dev_attr.attr, | |
660 | &sensor_dev_attr_temp4_max.dev_attr.attr, | |
2d1374ca | 661 | &sensor_dev_attr_temp4_alarm.dev_attr.attr, |
cbeeb5b7 RL |
662 | NULL |
663 | }, { | |
664 | &sensor_dev_attr_temp5_input.dev_attr.attr, | |
665 | &sensor_dev_attr_temp5_max_hyst.dev_attr.attr, | |
666 | &sensor_dev_attr_temp5_max.dev_attr.attr, | |
2d1374ca | 667 | &sensor_dev_attr_temp5_alarm.dev_attr.attr, |
cbeeb5b7 RL |
668 | NULL |
669 | }, { | |
670 | &sensor_dev_attr_temp6_input.dev_attr.attr, | |
671 | &sensor_dev_attr_temp6_max_hyst.dev_attr.attr, | |
672 | &sensor_dev_attr_temp6_max.dev_attr.attr, | |
2d1374ca | 673 | &sensor_dev_attr_temp6_alarm.dev_attr.attr, |
cbeeb5b7 RL |
674 | NULL |
675 | } | |
676 | }; | |
677 | ||
678 | static const struct attribute_group vt8231_group_temps[6] = { | |
679 | { .attrs = vt8231_attributes_temps[0] }, | |
680 | { .attrs = vt8231_attributes_temps[1] }, | |
681 | { .attrs = vt8231_attributes_temps[2] }, | |
682 | { .attrs = vt8231_attributes_temps[3] }, | |
683 | { .attrs = vt8231_attributes_temps[4] }, | |
684 | { .attrs = vt8231_attributes_temps[5] }, | |
685 | }; | |
686 | ||
2d1374ca | 687 | static struct attribute *vt8231_attributes_volts[6][5] = { |
cbeeb5b7 RL |
688 | { |
689 | &sensor_dev_attr_in0_input.dev_attr.attr, | |
690 | &sensor_dev_attr_in0_min.dev_attr.attr, | |
691 | &sensor_dev_attr_in0_max.dev_attr.attr, | |
2d1374ca | 692 | &sensor_dev_attr_in0_alarm.dev_attr.attr, |
cbeeb5b7 RL |
693 | NULL |
694 | }, { | |
695 | &sensor_dev_attr_in1_input.dev_attr.attr, | |
696 | &sensor_dev_attr_in1_min.dev_attr.attr, | |
697 | &sensor_dev_attr_in1_max.dev_attr.attr, | |
2d1374ca | 698 | &sensor_dev_attr_in1_alarm.dev_attr.attr, |
cbeeb5b7 RL |
699 | NULL |
700 | }, { | |
701 | &sensor_dev_attr_in2_input.dev_attr.attr, | |
702 | &sensor_dev_attr_in2_min.dev_attr.attr, | |
703 | &sensor_dev_attr_in2_max.dev_attr.attr, | |
2d1374ca | 704 | &sensor_dev_attr_in2_alarm.dev_attr.attr, |
cbeeb5b7 RL |
705 | NULL |
706 | }, { | |
707 | &sensor_dev_attr_in3_input.dev_attr.attr, | |
708 | &sensor_dev_attr_in3_min.dev_attr.attr, | |
709 | &sensor_dev_attr_in3_max.dev_attr.attr, | |
2d1374ca | 710 | &sensor_dev_attr_in3_alarm.dev_attr.attr, |
cbeeb5b7 RL |
711 | NULL |
712 | }, { | |
713 | &sensor_dev_attr_in4_input.dev_attr.attr, | |
714 | &sensor_dev_attr_in4_min.dev_attr.attr, | |
715 | &sensor_dev_attr_in4_max.dev_attr.attr, | |
2d1374ca | 716 | &sensor_dev_attr_in4_alarm.dev_attr.attr, |
cbeeb5b7 RL |
717 | NULL |
718 | }, { | |
719 | &dev_attr_in5_input.attr, | |
720 | &dev_attr_in5_min.attr, | |
721 | &dev_attr_in5_max.attr, | |
2d1374ca | 722 | &sensor_dev_attr_in5_alarm.dev_attr.attr, |
cbeeb5b7 RL |
723 | NULL |
724 | } | |
725 | }; | |
726 | ||
727 | static const struct attribute_group vt8231_group_volts[6] = { | |
728 | { .attrs = vt8231_attributes_volts[0] }, | |
729 | { .attrs = vt8231_attributes_volts[1] }, | |
730 | { .attrs = vt8231_attributes_volts[2] }, | |
731 | { .attrs = vt8231_attributes_volts[3] }, | |
732 | { .attrs = vt8231_attributes_volts[4] }, | |
733 | { .attrs = vt8231_attributes_volts[5] }, | |
734 | }; | |
735 | ||
736 | static struct attribute *vt8231_attributes[] = { | |
737 | &sensor_dev_attr_fan1_input.dev_attr.attr, | |
738 | &sensor_dev_attr_fan2_input.dev_attr.attr, | |
739 | &sensor_dev_attr_fan1_min.dev_attr.attr, | |
740 | &sensor_dev_attr_fan2_min.dev_attr.attr, | |
741 | &sensor_dev_attr_fan1_div.dev_attr.attr, | |
742 | &sensor_dev_attr_fan2_div.dev_attr.attr, | |
2d1374ca JD |
743 | &sensor_dev_attr_fan1_alarm.dev_attr.attr, |
744 | &sensor_dev_attr_fan2_alarm.dev_attr.attr, | |
cbeeb5b7 | 745 | &dev_attr_alarms.attr, |
ec5e1a4b | 746 | &dev_attr_name.attr, |
cbeeb5b7 RL |
747 | NULL |
748 | }; | |
749 | ||
750 | static const struct attribute_group vt8231_group = { | |
751 | .attrs = vt8231_attributes, | |
752 | }; | |
753 | ||
ec5e1a4b | 754 | static struct platform_driver vt8231_driver = { |
cdaf7934 | 755 | .driver = { |
cdaf7934 LR |
756 | .name = "vt8231", |
757 | }, | |
ec5e1a4b | 758 | .probe = vt8231_probe, |
9e5e9b7a | 759 | .remove = vt8231_remove, |
1de9e371 RL |
760 | }; |
761 | ||
cd9bb056 | 762 | static const struct pci_device_id vt8231_pci_ids[] = { |
1de9e371 RL |
763 | { PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8231_4) }, |
764 | { 0, } | |
765 | }; | |
766 | ||
767 | MODULE_DEVICE_TABLE(pci, vt8231_pci_ids); | |
768 | ||
6c931ae1 | 769 | static int vt8231_pci_probe(struct pci_dev *dev, |
65fe5c79 | 770 | const struct pci_device_id *id); |
1de9e371 RL |
771 | |
772 | static struct pci_driver vt8231_pci_driver = { | |
773 | .name = "vt8231", | |
774 | .id_table = vt8231_pci_ids, | |
775 | .probe = vt8231_pci_probe, | |
776 | }; | |
777 | ||
a022fef5 | 778 | static int vt8231_probe(struct platform_device *pdev) |
1de9e371 | 779 | { |
ec5e1a4b | 780 | struct resource *res; |
1de9e371 RL |
781 | struct vt8231_data *data; |
782 | int err = 0, i; | |
1de9e371 RL |
783 | |
784 | /* Reserve the ISA region */ | |
ec5e1a4b | 785 | res = platform_get_resource(pdev, IORESOURCE_IO, 0); |
7711f1bd GR |
786 | if (!devm_request_region(&pdev->dev, res->start, VT8231_EXTENT, |
787 | vt8231_driver.driver.name)) { | |
ec5e1a4b RL |
788 | dev_err(&pdev->dev, "Region 0x%lx-0x%lx already in use!\n", |
789 | (unsigned long)res->start, (unsigned long)res->end); | |
1de9e371 RL |
790 | return -ENODEV; |
791 | } | |
792 | ||
7711f1bd GR |
793 | data = devm_kzalloc(&pdev->dev, sizeof(struct vt8231_data), GFP_KERNEL); |
794 | if (!data) | |
795 | return -ENOMEM; | |
1de9e371 | 796 | |
ec5e1a4b RL |
797 | platform_set_drvdata(pdev, data); |
798 | data->addr = res->start; | |
799 | data->name = "vt8231"; | |
1de9e371 | 800 | |
9a61bf63 | 801 | mutex_init(&data->update_lock); |
ec5e1a4b | 802 | vt8231_init_device(data); |
1de9e371 RL |
803 | |
804 | /* Register sysfs hooks */ | |
65fe5c79 GR |
805 | err = sysfs_create_group(&pdev->dev.kobj, &vt8231_group); |
806 | if (err) | |
7711f1bd | 807 | return err; |
1de9e371 RL |
808 | |
809 | /* Must update device information to find out the config field */ | |
ec5e1a4b | 810 | data->uch_config = vt8231_read_value(data, VT8231_REG_UCH_CONFIG); |
1de9e371 | 811 | |
cbeeb5b7 | 812 | for (i = 0; i < ARRAY_SIZE(vt8231_group_temps); i++) { |
1de9e371 | 813 | if (ISTEMP(i, data->uch_config)) { |
65fe5c79 GR |
814 | err = sysfs_create_group(&pdev->dev.kobj, |
815 | &vt8231_group_temps[i]); | |
816 | if (err) | |
cbeeb5b7 | 817 | goto exit_remove_files; |
1de9e371 RL |
818 | } |
819 | } | |
820 | ||
cbeeb5b7 | 821 | for (i = 0; i < ARRAY_SIZE(vt8231_group_volts); i++) { |
1de9e371 | 822 | if (ISVOLT(i, data->uch_config)) { |
65fe5c79 GR |
823 | err = sysfs_create_group(&pdev->dev.kobj, |
824 | &vt8231_group_volts[i]); | |
825 | if (err) | |
cbeeb5b7 | 826 | goto exit_remove_files; |
1de9e371 RL |
827 | } |
828 | } | |
829 | ||
1beeffe4 TJ |
830 | data->hwmon_dev = hwmon_device_register(&pdev->dev); |
831 | if (IS_ERR(data->hwmon_dev)) { | |
832 | err = PTR_ERR(data->hwmon_dev); | |
cbeeb5b7 RL |
833 | goto exit_remove_files; |
834 | } | |
1de9e371 RL |
835 | return 0; |
836 | ||
cbeeb5b7 RL |
837 | exit_remove_files: |
838 | for (i = 0; i < ARRAY_SIZE(vt8231_group_volts); i++) | |
ec5e1a4b | 839 | sysfs_remove_group(&pdev->dev.kobj, &vt8231_group_volts[i]); |
cbeeb5b7 RL |
840 | |
841 | for (i = 0; i < ARRAY_SIZE(vt8231_group_temps); i++) | |
ec5e1a4b RL |
842 | sysfs_remove_group(&pdev->dev.kobj, &vt8231_group_temps[i]); |
843 | ||
844 | sysfs_remove_group(&pdev->dev.kobj, &vt8231_group); | |
1de9e371 RL |
845 | return err; |
846 | } | |
847 | ||
281dfd0b | 848 | static int vt8231_remove(struct platform_device *pdev) |
1de9e371 | 849 | { |
ec5e1a4b RL |
850 | struct vt8231_data *data = platform_get_drvdata(pdev); |
851 | int i; | |
1de9e371 | 852 | |
1beeffe4 | 853 | hwmon_device_unregister(data->hwmon_dev); |
1de9e371 | 854 | |
cbeeb5b7 | 855 | for (i = 0; i < ARRAY_SIZE(vt8231_group_volts); i++) |
ec5e1a4b | 856 | sysfs_remove_group(&pdev->dev.kobj, &vt8231_group_volts[i]); |
cbeeb5b7 RL |
857 | |
858 | for (i = 0; i < ARRAY_SIZE(vt8231_group_temps); i++) | |
ec5e1a4b | 859 | sysfs_remove_group(&pdev->dev.kobj, &vt8231_group_temps[i]); |
cbeeb5b7 | 860 | |
ec5e1a4b | 861 | sysfs_remove_group(&pdev->dev.kobj, &vt8231_group); |
cbeeb5b7 | 862 | |
1de9e371 RL |
863 | return 0; |
864 | } | |
865 | ||
ec5e1a4b | 866 | static void vt8231_init_device(struct vt8231_data *data) |
1de9e371 | 867 | { |
ec5e1a4b RL |
868 | vt8231_write_value(data, VT8231_REG_TEMP1_CONFIG, 0); |
869 | vt8231_write_value(data, VT8231_REG_TEMP2_CONFIG, 0); | |
1de9e371 RL |
870 | } |
871 | ||
872 | static struct vt8231_data *vt8231_update_device(struct device *dev) | |
873 | { | |
ec5e1a4b | 874 | struct vt8231_data *data = dev_get_drvdata(dev); |
1de9e371 RL |
875 | int i; |
876 | u16 low; | |
877 | ||
9a61bf63 | 878 | mutex_lock(&data->update_lock); |
1de9e371 RL |
879 | |
880 | if (time_after(jiffies, data->last_updated + HZ + HZ / 2) | |
881 | || !data->valid) { | |
882 | for (i = 0; i < 6; i++) { | |
883 | if (ISVOLT(i, data->uch_config)) { | |
ec5e1a4b | 884 | data->in[i] = vt8231_read_value(data, |
1de9e371 | 885 | regvolt[i]); |
ec5e1a4b | 886 | data->in_min[i] = vt8231_read_value(data, |
1de9e371 | 887 | regvoltmin[i]); |
ec5e1a4b | 888 | data->in_max[i] = vt8231_read_value(data, |
1de9e371 RL |
889 | regvoltmax[i]); |
890 | } | |
891 | } | |
892 | for (i = 0; i < 2; i++) { | |
ec5e1a4b | 893 | data->fan[i] = vt8231_read_value(data, |
1de9e371 | 894 | VT8231_REG_FAN(i)); |
ec5e1a4b | 895 | data->fan_min[i] = vt8231_read_value(data, |
1de9e371 RL |
896 | VT8231_REG_FAN_MIN(i)); |
897 | } | |
898 | ||
ec5e1a4b | 899 | low = vt8231_read_value(data, VT8231_REG_TEMP_LOW01); |
1de9e371 | 900 | low = (low >> 6) | ((low & 0x30) >> 2) |
ec5e1a4b | 901 | | (vt8231_read_value(data, VT8231_REG_TEMP_LOW25) << 4); |
1de9e371 RL |
902 | for (i = 0; i < 6; i++) { |
903 | if (ISTEMP(i, data->uch_config)) { | |
ec5e1a4b | 904 | data->temp[i] = (vt8231_read_value(data, |
1de9e371 RL |
905 | regtemp[i]) << 2) |
906 | | ((low >> (2 * i)) & 0x03); | |
ec5e1a4b | 907 | data->temp_max[i] = vt8231_read_value(data, |
1de9e371 | 908 | regtempmax[i]); |
ec5e1a4b | 909 | data->temp_min[i] = vt8231_read_value(data, |
1de9e371 RL |
910 | regtempmin[i]); |
911 | } | |
912 | } | |
913 | ||
ec5e1a4b | 914 | i = vt8231_read_value(data, VT8231_REG_FANDIV); |
1de9e371 RL |
915 | data->fan_div[0] = (i >> 4) & 0x03; |
916 | data->fan_div[1] = i >> 6; | |
ec5e1a4b RL |
917 | data->alarms = vt8231_read_value(data, VT8231_REG_ALARM1) | |
918 | (vt8231_read_value(data, VT8231_REG_ALARM2) << 8); | |
1de9e371 RL |
919 | |
920 | /* Set alarm flags correctly */ | |
65fe5c79 | 921 | if (!data->fan[0] && data->fan_min[0]) |
1de9e371 | 922 | data->alarms |= 0x40; |
65fe5c79 | 923 | else if (data->fan[0] && !data->fan_min[0]) |
1de9e371 | 924 | data->alarms &= ~0x40; |
1de9e371 | 925 | |
65fe5c79 | 926 | if (!data->fan[1] && data->fan_min[1]) |
1de9e371 | 927 | data->alarms |= 0x80; |
65fe5c79 | 928 | else if (data->fan[1] && !data->fan_min[1]) |
1de9e371 | 929 | data->alarms &= ~0x80; |
1de9e371 RL |
930 | |
931 | data->last_updated = jiffies; | |
932 | data->valid = 1; | |
933 | } | |
934 | ||
9a61bf63 | 935 | mutex_unlock(&data->update_lock); |
1de9e371 RL |
936 | |
937 | return data; | |
938 | } | |
939 | ||
6c931ae1 | 940 | static int vt8231_device_add(unsigned short address) |
ec5e1a4b RL |
941 | { |
942 | struct resource res = { | |
943 | .start = address, | |
944 | .end = address + VT8231_EXTENT - 1, | |
945 | .name = "vt8231", | |
946 | .flags = IORESOURCE_IO, | |
947 | }; | |
948 | int err; | |
949 | ||
b9acb64a JD |
950 | err = acpi_check_resource_conflict(&res); |
951 | if (err) | |
952 | goto exit; | |
953 | ||
ec5e1a4b RL |
954 | pdev = platform_device_alloc("vt8231", address); |
955 | if (!pdev) { | |
956 | err = -ENOMEM; | |
9d72be0d | 957 | pr_err("Device allocation failed\n"); |
ec5e1a4b RL |
958 | goto exit; |
959 | } | |
960 | ||
961 | err = platform_device_add_resources(pdev, &res, 1); | |
962 | if (err) { | |
9d72be0d | 963 | pr_err("Device resource addition failed (%d)\n", err); |
ec5e1a4b RL |
964 | goto exit_device_put; |
965 | } | |
966 | ||
967 | err = platform_device_add(pdev); | |
968 | if (err) { | |
9d72be0d | 969 | pr_err("Device addition failed (%d)\n", err); |
ec5e1a4b RL |
970 | goto exit_device_put; |
971 | } | |
972 | ||
973 | return 0; | |
974 | ||
975 | exit_device_put: | |
976 | platform_device_put(pdev); | |
977 | exit: | |
978 | return err; | |
979 | } | |
980 | ||
6c931ae1 | 981 | static int vt8231_pci_probe(struct pci_dev *dev, |
1de9e371 RL |
982 | const struct pci_device_id *id) |
983 | { | |
ec5e1a4b RL |
984 | u16 address, val; |
985 | if (force_addr) { | |
986 | address = force_addr & 0xff00; | |
987 | dev_warn(&dev->dev, "Forcing ISA address 0x%x\n", | |
988 | address); | |
989 | ||
990 | if (PCIBIOS_SUCCESSFUL != | |
991 | pci_write_config_word(dev, VT8231_BASE_REG, address | 1)) | |
992 | return -ENODEV; | |
993 | } | |
1de9e371 RL |
994 | |
995 | if (PCIBIOS_SUCCESSFUL != pci_read_config_word(dev, VT8231_BASE_REG, | |
996 | &val)) | |
997 | return -ENODEV; | |
998 | ||
ec5e1a4b RL |
999 | address = val & ~(VT8231_EXTENT - 1); |
1000 | if (address == 0) { | |
4cae7878 | 1001 | dev_err(&dev->dev, "base address not set - upgrade BIOS or use force_addr=0xaddr\n"); |
1de9e371 RL |
1002 | return -ENODEV; |
1003 | } | |
1004 | ||
ec5e1a4b RL |
1005 | if (PCIBIOS_SUCCESSFUL != pci_read_config_word(dev, VT8231_ENABLE_REG, |
1006 | &val)) | |
1007 | return -ENODEV; | |
1de9e371 | 1008 | |
ec5e1a4b RL |
1009 | if (!(val & 0x0001)) { |
1010 | dev_warn(&dev->dev, "enabling sensors\n"); | |
1011 | if (PCIBIOS_SUCCESSFUL != | |
1012 | pci_write_config_word(dev, VT8231_ENABLE_REG, | |
1013 | val | 0x0001)) | |
1014 | return -ENODEV; | |
1de9e371 RL |
1015 | } |
1016 | ||
ec5e1a4b RL |
1017 | if (platform_driver_register(&vt8231_driver)) |
1018 | goto exit; | |
1019 | ||
1020 | /* Sets global pdev as a side effect */ | |
1021 | if (vt8231_device_add(address)) | |
1022 | goto exit_unregister; | |
1023 | ||
61ba0318 GR |
1024 | /* |
1025 | * Always return failure here. This is to allow other drivers to bind | |
1de9e371 RL |
1026 | * to this pci device. We don't really want to have control over the |
1027 | * pci device, we only wanted to read as few register values from it. | |
1028 | */ | |
ec5e1a4b | 1029 | |
61ba0318 GR |
1030 | /* |
1031 | * We do, however, mark ourselves as using the PCI device to stop it | |
1032 | * getting unloaded. | |
1033 | */ | |
ec5e1a4b RL |
1034 | s_bridge = pci_dev_get(dev); |
1035 | return -ENODEV; | |
1036 | ||
1037 | exit_unregister: | |
1038 | platform_driver_unregister(&vt8231_driver); | |
1039 | exit: | |
1de9e371 RL |
1040 | return -ENODEV; |
1041 | } | |
1042 | ||
1043 | static int __init sm_vt8231_init(void) | |
1044 | { | |
93b47684 | 1045 | return pci_register_driver(&vt8231_pci_driver); |
1de9e371 RL |
1046 | } |
1047 | ||
1048 | static void __exit sm_vt8231_exit(void) | |
1049 | { | |
1050 | pci_unregister_driver(&vt8231_pci_driver); | |
1051 | if (s_bridge != NULL) { | |
ec5e1a4b RL |
1052 | platform_device_unregister(pdev); |
1053 | platform_driver_unregister(&vt8231_driver); | |
1de9e371 RL |
1054 | pci_dev_put(s_bridge); |
1055 | s_bridge = NULL; | |
1056 | } | |
1057 | } | |
1058 | ||
af865765 | 1059 | MODULE_AUTHOR("Roger Lucas <vt8231@hiddenengine.co.uk>"); |
1de9e371 RL |
1060 | MODULE_DESCRIPTION("VT8231 sensors"); |
1061 | MODULE_LICENSE("GPL"); | |
1062 | ||
1063 | module_init(sm_vt8231_init); | |
1064 | module_exit(sm_vt8231_exit); |