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1de9e371 RL |
1 | /* |
2 | vt8231.c - Part of lm_sensors, Linux kernel modules | |
3 | for hardware monitoring | |
4 | ||
af865765 | 5 | Copyright (c) 2005 Roger Lucas <vt8231@hiddenengine.co.uk> |
1de9e371 RL |
6 | Copyright (c) 2002 Mark D. Studebaker <mdsxyz123@yahoo.com> |
7 | Aaron M. Marsh <amarsh@sdf.lonestar.org> | |
8 | ||
9 | This program is free software; you can redistribute it and/or modify | |
10 | it under the terms of the GNU General Public License as published by | |
11 | the Free Software Foundation; either version 2 of the License, or | |
12 | (at your option) any later version. | |
13 | ||
14 | This program is distributed in the hope that it will be useful, | |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
18 | ||
19 | You should have received a copy of the GNU General Public License | |
20 | along with this program; if not, write to the Free Software | |
21 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
22 | */ | |
23 | ||
24 | /* Supports VIA VT8231 South Bridge embedded sensors | |
25 | */ | |
26 | ||
9d72be0d JP |
27 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
28 | ||
1de9e371 RL |
29 | #include <linux/module.h> |
30 | #include <linux/init.h> | |
31 | #include <linux/slab.h> | |
32 | #include <linux/pci.h> | |
33 | #include <linux/jiffies.h> | |
ec5e1a4b | 34 | #include <linux/platform_device.h> |
1de9e371 RL |
35 | #include <linux/hwmon.h> |
36 | #include <linux/hwmon-sysfs.h> | |
37 | #include <linux/hwmon-vid.h> | |
38 | #include <linux/err.h> | |
9a61bf63 | 39 | #include <linux/mutex.h> |
b9acb64a | 40 | #include <linux/acpi.h> |
6055fae8 | 41 | #include <linux/io.h> |
1de9e371 RL |
42 | |
43 | static int force_addr; | |
44 | module_param(force_addr, int, 0); | |
45 | MODULE_PARM_DESC(force_addr, "Initialize the base address of the sensors"); | |
46 | ||
ec5e1a4b | 47 | static struct platform_device *pdev; |
1de9e371 RL |
48 | |
49 | #define VT8231_EXTENT 0x80 | |
50 | #define VT8231_BASE_REG 0x70 | |
51 | #define VT8231_ENABLE_REG 0x74 | |
52 | ||
53 | /* The VT8231 registers | |
54 | ||
55 | The reset value for the input channel configuration is used (Reg 0x4A=0x07) | |
56 | which sets the selected inputs marked with '*' below if multiple options are | |
57 | possible: | |
58 | ||
59 | Voltage Mode Temperature Mode | |
60 | Sensor Linux Id Linux Id VIA Id | |
61 | -------- -------- -------- ------ | |
62 | CPU Diode N/A temp1 0 | |
63 | UIC1 in0 temp2 * 1 | |
64 | UIC2 in1 * temp3 2 | |
65 | UIC3 in2 * temp4 3 | |
66 | UIC4 in3 * temp5 4 | |
67 | UIC5 in4 * temp6 5 | |
68 | 3.3V in5 N/A | |
69 | ||
70 | Note that the BIOS may set the configuration register to a different value | |
71 | to match the motherboard configuration. | |
72 | */ | |
73 | ||
74 | /* fans numbered 0-1 */ | |
75 | #define VT8231_REG_FAN_MIN(nr) (0x3b + (nr)) | |
76 | #define VT8231_REG_FAN(nr) (0x29 + (nr)) | |
77 | ||
78 | /* Voltage inputs numbered 0-5 */ | |
79 | ||
80 | static const u8 regvolt[] = { 0x21, 0x22, 0x23, 0x24, 0x25, 0x26 }; | |
81 | static const u8 regvoltmax[] = { 0x3d, 0x2b, 0x2d, 0x2f, 0x31, 0x33 }; | |
82 | static const u8 regvoltmin[] = { 0x3e, 0x2c, 0x2e, 0x30, 0x32, 0x34 }; | |
83 | ||
84 | /* Temperatures are numbered 1-6 according to the Linux kernel specification. | |
85 | ** | |
86 | ** In the VIA datasheet, however, the temperatures are numbered from zero. | |
87 | ** Since it is important that this driver can easily be compared to the VIA | |
88 | ** datasheet, we will use the VIA numbering within this driver and map the | |
89 | ** kernel sysfs device name to the VIA number in the sysfs callback. | |
90 | */ | |
91 | ||
92 | #define VT8231_REG_TEMP_LOW01 0x49 | |
93 | #define VT8231_REG_TEMP_LOW25 0x4d | |
94 | ||
95 | static const u8 regtemp[] = { 0x1f, 0x21, 0x22, 0x23, 0x24, 0x25 }; | |
96 | static const u8 regtempmax[] = { 0x39, 0x3d, 0x2b, 0x2d, 0x2f, 0x31 }; | |
97 | static const u8 regtempmin[] = { 0x3a, 0x3e, 0x2c, 0x2e, 0x30, 0x32 }; | |
98 | ||
99 | #define TEMP_FROM_REG(reg) (((253 * 4 - (reg)) * 550 + 105) / 210) | |
100 | #define TEMP_MAXMIN_FROM_REG(reg) (((253 - (reg)) * 2200 + 105) / 210) | |
101 | #define TEMP_MAXMIN_TO_REG(val) (253 - ((val) * 210 + 1100) / 2200) | |
102 | ||
103 | #define VT8231_REG_CONFIG 0x40 | |
104 | #define VT8231_REG_ALARM1 0x41 | |
105 | #define VT8231_REG_ALARM2 0x42 | |
106 | #define VT8231_REG_FANDIV 0x47 | |
107 | #define VT8231_REG_UCH_CONFIG 0x4a | |
108 | #define VT8231_REG_TEMP1_CONFIG 0x4b | |
109 | #define VT8231_REG_TEMP2_CONFIG 0x4c | |
110 | ||
111 | /* temps 0-5 as numbered in VIA datasheet - see later for mapping to Linux | |
112 | ** numbering | |
113 | */ | |
114 | #define ISTEMP(i, ch_config) ((i) == 0 ? 1 : \ | |
115 | ((ch_config) >> ((i)+1)) & 0x01) | |
116 | /* voltages 0-5 */ | |
117 | #define ISVOLT(i, ch_config) ((i) == 5 ? 1 : \ | |
118 | !(((ch_config) >> ((i)+2)) & 0x01)) | |
119 | ||
120 | #define DIV_FROM_REG(val) (1 << (val)) | |
121 | ||
122 | /* NB The values returned here are NOT temperatures. The calibration curves | |
123 | ** for the thermistor curves are board-specific and must go in the | |
124 | ** sensors.conf file. Temperature sensors are actually ten bits, but the | |
125 | ** VIA datasheet only considers the 8 MSBs obtained from the regtemp[] | |
126 | ** register. The temperature value returned should have a magnitude of 3, | |
127 | ** so we use the VIA scaling as the "true" scaling and use the remaining 2 | |
128 | ** LSBs as fractional precision. | |
129 | ** | |
130 | ** All the on-chip hardware temperature comparisons for the alarms are only | |
131 | ** 8-bits wide, and compare against the 8 MSBs of the temperature. The bits | |
132 | ** in the registers VT8231_REG_TEMP_LOW01 and VT8231_REG_TEMP_LOW25 are | |
133 | ** ignored. | |
134 | */ | |
135 | ||
136 | /******** FAN RPM CONVERSIONS ******** | |
137 | ** This chip saturates back at 0, not at 255 like many the other chips. | |
138 | ** So, 0 means 0 RPM | |
139 | */ | |
140 | static inline u8 FAN_TO_REG(long rpm, int div) | |
141 | { | |
142 | if (rpm == 0) | |
143 | return 0; | |
144 | return SENSORS_LIMIT(1310720 / (rpm * div), 1, 255); | |
145 | } | |
146 | ||
147 | #define FAN_FROM_REG(val, div) ((val) == 0 ? 0 : 1310720 / ((val) * (div))) | |
148 | ||
149 | struct vt8231_data { | |
ec5e1a4b RL |
150 | unsigned short addr; |
151 | const char *name; | |
152 | ||
9a61bf63 | 153 | struct mutex update_lock; |
1beeffe4 | 154 | struct device *hwmon_dev; |
1de9e371 RL |
155 | char valid; /* !=0 if following fields are valid */ |
156 | unsigned long last_updated; /* In jiffies */ | |
157 | ||
158 | u8 in[6]; /* Register value */ | |
159 | u8 in_max[6]; /* Register value */ | |
160 | u8 in_min[6]; /* Register value */ | |
161 | u16 temp[6]; /* Register value 10 bit, right aligned */ | |
162 | u8 temp_max[6]; /* Register value */ | |
163 | u8 temp_min[6]; /* Register value */ | |
164 | u8 fan[2]; /* Register value */ | |
165 | u8 fan_min[2]; /* Register value */ | |
166 | u8 fan_div[2]; /* Register encoding, shifted right */ | |
167 | u16 alarms; /* Register encoding */ | |
168 | u8 uch_config; | |
169 | }; | |
170 | ||
171 | static struct pci_dev *s_bridge; | |
ec5e1a4b | 172 | static int vt8231_probe(struct platform_device *pdev); |
d0546128 | 173 | static int __devexit vt8231_remove(struct platform_device *pdev); |
1de9e371 | 174 | static struct vt8231_data *vt8231_update_device(struct device *dev); |
ec5e1a4b | 175 | static void vt8231_init_device(struct vt8231_data *data); |
1de9e371 | 176 | |
ec5e1a4b | 177 | static inline int vt8231_read_value(struct vt8231_data *data, u8 reg) |
1de9e371 | 178 | { |
ec5e1a4b | 179 | return inb_p(data->addr + reg); |
1de9e371 RL |
180 | } |
181 | ||
ec5e1a4b | 182 | static inline void vt8231_write_value(struct vt8231_data *data, u8 reg, |
1de9e371 RL |
183 | u8 value) |
184 | { | |
ec5e1a4b | 185 | outb_p(value, data->addr + reg); |
1de9e371 RL |
186 | } |
187 | ||
188 | /* following are the sysfs callback functions */ | |
189 | static ssize_t show_in(struct device *dev, struct device_attribute *attr, | |
190 | char *buf) | |
191 | { | |
192 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); | |
193 | int nr = sensor_attr->index; | |
194 | struct vt8231_data *data = vt8231_update_device(dev); | |
195 | ||
196 | return sprintf(buf, "%d\n", ((data->in[nr] - 3) * 10000) / 958); | |
197 | } | |
198 | ||
199 | static ssize_t show_in_min(struct device *dev, struct device_attribute *attr, | |
200 | char *buf) | |
201 | { | |
202 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); | |
203 | int nr = sensor_attr->index; | |
204 | struct vt8231_data *data = vt8231_update_device(dev); | |
205 | ||
206 | return sprintf(buf, "%d\n", ((data->in_min[nr] - 3) * 10000) / 958); | |
207 | } | |
208 | ||
209 | static ssize_t show_in_max(struct device *dev, struct device_attribute *attr, | |
210 | char *buf) | |
211 | { | |
212 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); | |
213 | int nr = sensor_attr->index; | |
214 | struct vt8231_data *data = vt8231_update_device(dev); | |
215 | ||
216 | return sprintf(buf, "%d\n", (((data->in_max[nr] - 3) * 10000) / 958)); | |
217 | } | |
218 | ||
219 | static ssize_t set_in_min(struct device *dev, struct device_attribute *attr, | |
220 | const char *buf, size_t count) | |
221 | { | |
222 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); | |
223 | int nr = sensor_attr->index; | |
ec5e1a4b | 224 | struct vt8231_data *data = dev_get_drvdata(dev); |
1de9e371 RL |
225 | unsigned long val = simple_strtoul(buf, NULL, 10); |
226 | ||
9a61bf63 | 227 | mutex_lock(&data->update_lock); |
1de9e371 | 228 | data->in_min[nr] = SENSORS_LIMIT(((val * 958) / 10000) + 3, 0, 255); |
ec5e1a4b | 229 | vt8231_write_value(data, regvoltmin[nr], data->in_min[nr]); |
9a61bf63 | 230 | mutex_unlock(&data->update_lock); |
1de9e371 RL |
231 | return count; |
232 | } | |
233 | ||
234 | static ssize_t set_in_max(struct device *dev, struct device_attribute *attr, | |
235 | const char *buf, size_t count) | |
236 | { | |
237 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); | |
238 | int nr = sensor_attr->index; | |
ec5e1a4b | 239 | struct vt8231_data *data = dev_get_drvdata(dev); |
1de9e371 RL |
240 | unsigned long val = simple_strtoul(buf, NULL, 10); |
241 | ||
9a61bf63 | 242 | mutex_lock(&data->update_lock); |
1de9e371 | 243 | data->in_max[nr] = SENSORS_LIMIT(((val * 958) / 10000) + 3, 0, 255); |
ec5e1a4b | 244 | vt8231_write_value(data, regvoltmax[nr], data->in_max[nr]); |
9a61bf63 | 245 | mutex_unlock(&data->update_lock); |
1de9e371 RL |
246 | return count; |
247 | } | |
248 | ||
249 | /* Special case for input 5 as this has 3.3V scaling built into the chip */ | |
250 | static ssize_t show_in5(struct device *dev, struct device_attribute *attr, | |
251 | char *buf) | |
252 | { | |
253 | struct vt8231_data *data = vt8231_update_device(dev); | |
254 | ||
255 | return sprintf(buf, "%d\n", | |
256 | (((data->in[5] - 3) * 10000 * 54) / (958 * 34))); | |
257 | } | |
258 | ||
259 | static ssize_t show_in5_min(struct device *dev, struct device_attribute *attr, | |
260 | char *buf) | |
261 | { | |
262 | struct vt8231_data *data = vt8231_update_device(dev); | |
263 | ||
264 | return sprintf(buf, "%d\n", | |
265 | (((data->in_min[5] - 3) * 10000 * 54) / (958 * 34))); | |
266 | } | |
267 | ||
268 | static ssize_t show_in5_max(struct device *dev, struct device_attribute *attr, | |
269 | char *buf) | |
270 | { | |
271 | struct vt8231_data *data = vt8231_update_device(dev); | |
272 | ||
273 | return sprintf(buf, "%d\n", | |
274 | (((data->in_max[5] - 3) * 10000 * 54) / (958 * 34))); | |
275 | } | |
276 | ||
277 | static ssize_t set_in5_min(struct device *dev, struct device_attribute *attr, | |
278 | const char *buf, size_t count) | |
279 | { | |
ec5e1a4b | 280 | struct vt8231_data *data = dev_get_drvdata(dev); |
1de9e371 RL |
281 | unsigned long val = simple_strtoul(buf, NULL, 10); |
282 | ||
9a61bf63 | 283 | mutex_lock(&data->update_lock); |
1de9e371 RL |
284 | data->in_min[5] = SENSORS_LIMIT(((val * 958 * 34) / (10000 * 54)) + 3, |
285 | 0, 255); | |
ec5e1a4b | 286 | vt8231_write_value(data, regvoltmin[5], data->in_min[5]); |
9a61bf63 | 287 | mutex_unlock(&data->update_lock); |
1de9e371 RL |
288 | return count; |
289 | } | |
290 | ||
291 | static ssize_t set_in5_max(struct device *dev, struct device_attribute *attr, | |
292 | const char *buf, size_t count) | |
293 | { | |
ec5e1a4b | 294 | struct vt8231_data *data = dev_get_drvdata(dev); |
1de9e371 RL |
295 | unsigned long val = simple_strtoul(buf, NULL, 10); |
296 | ||
9a61bf63 | 297 | mutex_lock(&data->update_lock); |
1de9e371 RL |
298 | data->in_max[5] = SENSORS_LIMIT(((val * 958 * 34) / (10000 * 54)) + 3, |
299 | 0, 255); | |
ec5e1a4b | 300 | vt8231_write_value(data, regvoltmax[5], data->in_max[5]); |
9a61bf63 | 301 | mutex_unlock(&data->update_lock); |
1de9e371 RL |
302 | return count; |
303 | } | |
304 | ||
305 | #define define_voltage_sysfs(offset) \ | |
306 | static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, \ | |
307 | show_in, NULL, offset); \ | |
308 | static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \ | |
309 | show_in_min, set_in_min, offset); \ | |
310 | static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \ | |
311 | show_in_max, set_in_max, offset) | |
312 | ||
313 | define_voltage_sysfs(0); | |
314 | define_voltage_sysfs(1); | |
315 | define_voltage_sysfs(2); | |
316 | define_voltage_sysfs(3); | |
317 | define_voltage_sysfs(4); | |
318 | ||
319 | static DEVICE_ATTR(in5_input, S_IRUGO, show_in5, NULL); | |
320 | static DEVICE_ATTR(in5_min, S_IRUGO | S_IWUSR, show_in5_min, set_in5_min); | |
321 | static DEVICE_ATTR(in5_max, S_IRUGO | S_IWUSR, show_in5_max, set_in5_max); | |
322 | ||
323 | /* Temperatures */ | |
324 | static ssize_t show_temp0(struct device *dev, struct device_attribute *attr, | |
325 | char *buf) | |
326 | { | |
327 | struct vt8231_data *data = vt8231_update_device(dev); | |
328 | return sprintf(buf, "%d\n", data->temp[0] * 250); | |
329 | } | |
330 | ||
331 | static ssize_t show_temp0_max(struct device *dev, struct device_attribute *attr, | |
332 | char *buf) | |
333 | { | |
334 | struct vt8231_data *data = vt8231_update_device(dev); | |
335 | return sprintf(buf, "%d\n", data->temp_max[0] * 1000); | |
336 | } | |
337 | ||
338 | static ssize_t show_temp0_min(struct device *dev, struct device_attribute *attr, | |
339 | char *buf) | |
340 | { | |
341 | struct vt8231_data *data = vt8231_update_device(dev); | |
342 | return sprintf(buf, "%d\n", data->temp_min[0] * 1000); | |
343 | } | |
344 | ||
345 | static ssize_t set_temp0_max(struct device *dev, struct device_attribute *attr, | |
346 | const char *buf, size_t count) | |
347 | { | |
ec5e1a4b | 348 | struct vt8231_data *data = dev_get_drvdata(dev); |
1de9e371 RL |
349 | int val = simple_strtol(buf, NULL, 10); |
350 | ||
9a61bf63 | 351 | mutex_lock(&data->update_lock); |
1de9e371 | 352 | data->temp_max[0] = SENSORS_LIMIT((val + 500) / 1000, 0, 255); |
ec5e1a4b | 353 | vt8231_write_value(data, regtempmax[0], data->temp_max[0]); |
9a61bf63 | 354 | mutex_unlock(&data->update_lock); |
1de9e371 RL |
355 | return count; |
356 | } | |
357 | static ssize_t set_temp0_min(struct device *dev, struct device_attribute *attr, | |
358 | const char *buf, size_t count) | |
359 | { | |
ec5e1a4b | 360 | struct vt8231_data *data = dev_get_drvdata(dev); |
1de9e371 RL |
361 | int val = simple_strtol(buf, NULL, 10); |
362 | ||
9a61bf63 | 363 | mutex_lock(&data->update_lock); |
1de9e371 | 364 | data->temp_min[0] = SENSORS_LIMIT((val + 500) / 1000, 0, 255); |
ec5e1a4b | 365 | vt8231_write_value(data, regtempmin[0], data->temp_min[0]); |
9a61bf63 | 366 | mutex_unlock(&data->update_lock); |
1de9e371 RL |
367 | return count; |
368 | } | |
369 | ||
370 | static ssize_t show_temp(struct device *dev, struct device_attribute *attr, | |
371 | char *buf) | |
372 | { | |
373 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); | |
374 | int nr = sensor_attr->index; | |
375 | struct vt8231_data *data = vt8231_update_device(dev); | |
376 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[nr])); | |
377 | } | |
378 | ||
379 | static ssize_t show_temp_max(struct device *dev, struct device_attribute *attr, | |
380 | char *buf) | |
381 | { | |
382 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); | |
383 | int nr = sensor_attr->index; | |
384 | struct vt8231_data *data = vt8231_update_device(dev); | |
385 | return sprintf(buf, "%d\n", TEMP_MAXMIN_FROM_REG(data->temp_max[nr])); | |
386 | } | |
387 | ||
388 | static ssize_t show_temp_min(struct device *dev, struct device_attribute *attr, | |
389 | char *buf) | |
390 | { | |
391 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); | |
392 | int nr = sensor_attr->index; | |
393 | struct vt8231_data *data = vt8231_update_device(dev); | |
394 | return sprintf(buf, "%d\n", TEMP_MAXMIN_FROM_REG(data->temp_min[nr])); | |
395 | } | |
396 | ||
397 | static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr, | |
398 | const char *buf, size_t count) | |
399 | { | |
400 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); | |
401 | int nr = sensor_attr->index; | |
ec5e1a4b | 402 | struct vt8231_data *data = dev_get_drvdata(dev); |
1de9e371 RL |
403 | int val = simple_strtol(buf, NULL, 10); |
404 | ||
9a61bf63 | 405 | mutex_lock(&data->update_lock); |
1de9e371 | 406 | data->temp_max[nr] = SENSORS_LIMIT(TEMP_MAXMIN_TO_REG(val), 0, 255); |
ec5e1a4b | 407 | vt8231_write_value(data, regtempmax[nr], data->temp_max[nr]); |
9a61bf63 | 408 | mutex_unlock(&data->update_lock); |
1de9e371 RL |
409 | return count; |
410 | } | |
411 | static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr, | |
412 | const char *buf, size_t count) | |
413 | { | |
414 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); | |
415 | int nr = sensor_attr->index; | |
ec5e1a4b | 416 | struct vt8231_data *data = dev_get_drvdata(dev); |
1de9e371 RL |
417 | int val = simple_strtol(buf, NULL, 10); |
418 | ||
9a61bf63 | 419 | mutex_lock(&data->update_lock); |
1de9e371 | 420 | data->temp_min[nr] = SENSORS_LIMIT(TEMP_MAXMIN_TO_REG(val), 0, 255); |
ec5e1a4b | 421 | vt8231_write_value(data, regtempmin[nr], data->temp_min[nr]); |
9a61bf63 | 422 | mutex_unlock(&data->update_lock); |
1de9e371 RL |
423 | return count; |
424 | } | |
425 | ||
426 | /* Note that these map the Linux temperature sensor numbering (1-6) to the VIA | |
427 | ** temperature sensor numbering (0-5) | |
428 | */ | |
429 | #define define_temperature_sysfs(offset) \ | |
430 | static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, \ | |
431 | show_temp, NULL, offset - 1); \ | |
432 | static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \ | |
433 | show_temp_max, set_temp_max, offset - 1); \ | |
e3efa5a7 | 434 | static SENSOR_DEVICE_ATTR(temp##offset##_max_hyst, S_IRUGO | S_IWUSR, \ |
1de9e371 RL |
435 | show_temp_min, set_temp_min, offset - 1) |
436 | ||
437 | static DEVICE_ATTR(temp1_input, S_IRUGO, show_temp0, NULL); | |
438 | static DEVICE_ATTR(temp1_max, S_IRUGO | S_IWUSR, show_temp0_max, set_temp0_max); | |
e3efa5a7 | 439 | static DEVICE_ATTR(temp1_max_hyst, S_IRUGO | S_IWUSR, show_temp0_min, set_temp0_min); |
1de9e371 RL |
440 | |
441 | define_temperature_sysfs(2); | |
442 | define_temperature_sysfs(3); | |
443 | define_temperature_sysfs(4); | |
444 | define_temperature_sysfs(5); | |
445 | define_temperature_sysfs(6); | |
446 | ||
1de9e371 RL |
447 | /* Fans */ |
448 | static ssize_t show_fan(struct device *dev, struct device_attribute *attr, | |
449 | char *buf) | |
450 | { | |
451 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); | |
452 | int nr = sensor_attr->index; | |
453 | struct vt8231_data *data = vt8231_update_device(dev); | |
454 | return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[nr], | |
455 | DIV_FROM_REG(data->fan_div[nr]))); | |
456 | } | |
457 | ||
458 | static ssize_t show_fan_min(struct device *dev, struct device_attribute *attr, | |
459 | char *buf) | |
460 | { | |
461 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); | |
462 | int nr = sensor_attr->index; | |
463 | struct vt8231_data *data = vt8231_update_device(dev); | |
464 | return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[nr], | |
465 | DIV_FROM_REG(data->fan_div[nr]))); | |
466 | } | |
467 | ||
468 | static ssize_t show_fan_div(struct device *dev, struct device_attribute *attr, | |
469 | char *buf) | |
470 | { | |
471 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); | |
472 | int nr = sensor_attr->index; | |
473 | struct vt8231_data *data = vt8231_update_device(dev); | |
474 | return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[nr])); | |
475 | } | |
476 | ||
477 | static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr, | |
478 | const char *buf, size_t count) | |
479 | { | |
480 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); | |
481 | int nr = sensor_attr->index; | |
ec5e1a4b | 482 | struct vt8231_data *data = dev_get_drvdata(dev); |
1de9e371 RL |
483 | int val = simple_strtoul(buf, NULL, 10); |
484 | ||
9a61bf63 | 485 | mutex_lock(&data->update_lock); |
1de9e371 | 486 | data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr])); |
ec5e1a4b | 487 | vt8231_write_value(data, VT8231_REG_FAN_MIN(nr), data->fan_min[nr]); |
9a61bf63 | 488 | mutex_unlock(&data->update_lock); |
1de9e371 RL |
489 | return count; |
490 | } | |
491 | ||
492 | static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr, | |
493 | const char *buf, size_t count) | |
494 | { | |
ec5e1a4b | 495 | struct vt8231_data *data = dev_get_drvdata(dev); |
1de9e371 RL |
496 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
497 | unsigned long val = simple_strtoul(buf, NULL, 10); | |
498 | int nr = sensor_attr->index; | |
ec5e1a4b | 499 | int old = vt8231_read_value(data, VT8231_REG_FANDIV); |
1de9e371 RL |
500 | long min = FAN_FROM_REG(data->fan_min[nr], |
501 | DIV_FROM_REG(data->fan_div[nr])); | |
502 | ||
9a61bf63 | 503 | mutex_lock(&data->update_lock); |
1de9e371 RL |
504 | switch (val) { |
505 | case 1: data->fan_div[nr] = 0; break; | |
506 | case 2: data->fan_div[nr] = 1; break; | |
507 | case 4: data->fan_div[nr] = 2; break; | |
508 | case 8: data->fan_div[nr] = 3; break; | |
509 | default: | |
b20ff13a | 510 | dev_err(dev, "fan_div value %ld not supported. " |
1de9e371 | 511 | "Choose one of 1, 2, 4 or 8!\n", val); |
9a61bf63 | 512 | mutex_unlock(&data->update_lock); |
1de9e371 RL |
513 | return -EINVAL; |
514 | } | |
515 | ||
516 | /* Correct the fan minimum speed */ | |
517 | data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr])); | |
ec5e1a4b | 518 | vt8231_write_value(data, VT8231_REG_FAN_MIN(nr), data->fan_min[nr]); |
1de9e371 RL |
519 | |
520 | old = (old & 0x0f) | (data->fan_div[1] << 6) | (data->fan_div[0] << 4); | |
ec5e1a4b | 521 | vt8231_write_value(data, VT8231_REG_FANDIV, old); |
9a61bf63 | 522 | mutex_unlock(&data->update_lock); |
1de9e371 RL |
523 | return count; |
524 | } | |
525 | ||
526 | ||
527 | #define define_fan_sysfs(offset) \ | |
528 | static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, \ | |
529 | show_fan, NULL, offset - 1); \ | |
530 | static SENSOR_DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR, \ | |
531 | show_fan_div, set_fan_div, offset - 1); \ | |
532 | static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \ | |
533 | show_fan_min, set_fan_min, offset - 1) | |
534 | ||
535 | define_fan_sysfs(1); | |
536 | define_fan_sysfs(2); | |
537 | ||
538 | /* Alarms */ | |
539 | static ssize_t show_alarms(struct device *dev, struct device_attribute *attr, | |
540 | char *buf) | |
541 | { | |
542 | struct vt8231_data *data = vt8231_update_device(dev); | |
543 | return sprintf(buf, "%d\n", data->alarms); | |
544 | } | |
1de9e371 RL |
545 | static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL); |
546 | ||
2d1374ca JD |
547 | static ssize_t show_alarm(struct device *dev, struct device_attribute *attr, |
548 | char *buf) | |
549 | { | |
550 | int bitnr = to_sensor_dev_attr(attr)->index; | |
551 | struct vt8231_data *data = vt8231_update_device(dev); | |
552 | return sprintf(buf, "%u\n", (data->alarms >> bitnr) & 1); | |
553 | } | |
554 | static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4); | |
555 | static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 11); | |
556 | static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 0); | |
557 | static SENSOR_DEVICE_ATTR(temp4_alarm, S_IRUGO, show_alarm, NULL, 1); | |
558 | static SENSOR_DEVICE_ATTR(temp5_alarm, S_IRUGO, show_alarm, NULL, 3); | |
559 | static SENSOR_DEVICE_ATTR(temp6_alarm, S_IRUGO, show_alarm, NULL, 8); | |
560 | static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 11); | |
561 | static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 0); | |
562 | static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 1); | |
563 | static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3); | |
564 | static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 8); | |
565 | static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 2); | |
566 | static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 6); | |
567 | static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 7); | |
568 | ||
ec5e1a4b RL |
569 | static ssize_t show_name(struct device *dev, struct device_attribute |
570 | *devattr, char *buf) | |
571 | { | |
572 | struct vt8231_data *data = dev_get_drvdata(dev); | |
573 | return sprintf(buf, "%s\n", data->name); | |
574 | } | |
575 | static DEVICE_ATTR(name, S_IRUGO, show_name, NULL); | |
576 | ||
2d1374ca | 577 | static struct attribute *vt8231_attributes_temps[6][5] = { |
cbeeb5b7 RL |
578 | { |
579 | &dev_attr_temp1_input.attr, | |
580 | &dev_attr_temp1_max_hyst.attr, | |
581 | &dev_attr_temp1_max.attr, | |
2d1374ca | 582 | &sensor_dev_attr_temp1_alarm.dev_attr.attr, |
cbeeb5b7 RL |
583 | NULL |
584 | }, { | |
585 | &sensor_dev_attr_temp2_input.dev_attr.attr, | |
586 | &sensor_dev_attr_temp2_max_hyst.dev_attr.attr, | |
587 | &sensor_dev_attr_temp2_max.dev_attr.attr, | |
2d1374ca | 588 | &sensor_dev_attr_temp2_alarm.dev_attr.attr, |
cbeeb5b7 RL |
589 | NULL |
590 | }, { | |
591 | &sensor_dev_attr_temp3_input.dev_attr.attr, | |
592 | &sensor_dev_attr_temp3_max_hyst.dev_attr.attr, | |
593 | &sensor_dev_attr_temp3_max.dev_attr.attr, | |
2d1374ca | 594 | &sensor_dev_attr_temp3_alarm.dev_attr.attr, |
cbeeb5b7 RL |
595 | NULL |
596 | }, { | |
597 | &sensor_dev_attr_temp4_input.dev_attr.attr, | |
598 | &sensor_dev_attr_temp4_max_hyst.dev_attr.attr, | |
599 | &sensor_dev_attr_temp4_max.dev_attr.attr, | |
2d1374ca | 600 | &sensor_dev_attr_temp4_alarm.dev_attr.attr, |
cbeeb5b7 RL |
601 | NULL |
602 | }, { | |
603 | &sensor_dev_attr_temp5_input.dev_attr.attr, | |
604 | &sensor_dev_attr_temp5_max_hyst.dev_attr.attr, | |
605 | &sensor_dev_attr_temp5_max.dev_attr.attr, | |
2d1374ca | 606 | &sensor_dev_attr_temp5_alarm.dev_attr.attr, |
cbeeb5b7 RL |
607 | NULL |
608 | }, { | |
609 | &sensor_dev_attr_temp6_input.dev_attr.attr, | |
610 | &sensor_dev_attr_temp6_max_hyst.dev_attr.attr, | |
611 | &sensor_dev_attr_temp6_max.dev_attr.attr, | |
2d1374ca | 612 | &sensor_dev_attr_temp6_alarm.dev_attr.attr, |
cbeeb5b7 RL |
613 | NULL |
614 | } | |
615 | }; | |
616 | ||
617 | static const struct attribute_group vt8231_group_temps[6] = { | |
618 | { .attrs = vt8231_attributes_temps[0] }, | |
619 | { .attrs = vt8231_attributes_temps[1] }, | |
620 | { .attrs = vt8231_attributes_temps[2] }, | |
621 | { .attrs = vt8231_attributes_temps[3] }, | |
622 | { .attrs = vt8231_attributes_temps[4] }, | |
623 | { .attrs = vt8231_attributes_temps[5] }, | |
624 | }; | |
625 | ||
2d1374ca | 626 | static struct attribute *vt8231_attributes_volts[6][5] = { |
cbeeb5b7 RL |
627 | { |
628 | &sensor_dev_attr_in0_input.dev_attr.attr, | |
629 | &sensor_dev_attr_in0_min.dev_attr.attr, | |
630 | &sensor_dev_attr_in0_max.dev_attr.attr, | |
2d1374ca | 631 | &sensor_dev_attr_in0_alarm.dev_attr.attr, |
cbeeb5b7 RL |
632 | NULL |
633 | }, { | |
634 | &sensor_dev_attr_in1_input.dev_attr.attr, | |
635 | &sensor_dev_attr_in1_min.dev_attr.attr, | |
636 | &sensor_dev_attr_in1_max.dev_attr.attr, | |
2d1374ca | 637 | &sensor_dev_attr_in1_alarm.dev_attr.attr, |
cbeeb5b7 RL |
638 | NULL |
639 | }, { | |
640 | &sensor_dev_attr_in2_input.dev_attr.attr, | |
641 | &sensor_dev_attr_in2_min.dev_attr.attr, | |
642 | &sensor_dev_attr_in2_max.dev_attr.attr, | |
2d1374ca | 643 | &sensor_dev_attr_in2_alarm.dev_attr.attr, |
cbeeb5b7 RL |
644 | NULL |
645 | }, { | |
646 | &sensor_dev_attr_in3_input.dev_attr.attr, | |
647 | &sensor_dev_attr_in3_min.dev_attr.attr, | |
648 | &sensor_dev_attr_in3_max.dev_attr.attr, | |
2d1374ca | 649 | &sensor_dev_attr_in3_alarm.dev_attr.attr, |
cbeeb5b7 RL |
650 | NULL |
651 | }, { | |
652 | &sensor_dev_attr_in4_input.dev_attr.attr, | |
653 | &sensor_dev_attr_in4_min.dev_attr.attr, | |
654 | &sensor_dev_attr_in4_max.dev_attr.attr, | |
2d1374ca | 655 | &sensor_dev_attr_in4_alarm.dev_attr.attr, |
cbeeb5b7 RL |
656 | NULL |
657 | }, { | |
658 | &dev_attr_in5_input.attr, | |
659 | &dev_attr_in5_min.attr, | |
660 | &dev_attr_in5_max.attr, | |
2d1374ca | 661 | &sensor_dev_attr_in5_alarm.dev_attr.attr, |
cbeeb5b7 RL |
662 | NULL |
663 | } | |
664 | }; | |
665 | ||
666 | static const struct attribute_group vt8231_group_volts[6] = { | |
667 | { .attrs = vt8231_attributes_volts[0] }, | |
668 | { .attrs = vt8231_attributes_volts[1] }, | |
669 | { .attrs = vt8231_attributes_volts[2] }, | |
670 | { .attrs = vt8231_attributes_volts[3] }, | |
671 | { .attrs = vt8231_attributes_volts[4] }, | |
672 | { .attrs = vt8231_attributes_volts[5] }, | |
673 | }; | |
674 | ||
675 | static struct attribute *vt8231_attributes[] = { | |
676 | &sensor_dev_attr_fan1_input.dev_attr.attr, | |
677 | &sensor_dev_attr_fan2_input.dev_attr.attr, | |
678 | &sensor_dev_attr_fan1_min.dev_attr.attr, | |
679 | &sensor_dev_attr_fan2_min.dev_attr.attr, | |
680 | &sensor_dev_attr_fan1_div.dev_attr.attr, | |
681 | &sensor_dev_attr_fan2_div.dev_attr.attr, | |
2d1374ca JD |
682 | &sensor_dev_attr_fan1_alarm.dev_attr.attr, |
683 | &sensor_dev_attr_fan2_alarm.dev_attr.attr, | |
cbeeb5b7 | 684 | &dev_attr_alarms.attr, |
ec5e1a4b | 685 | &dev_attr_name.attr, |
cbeeb5b7 RL |
686 | NULL |
687 | }; | |
688 | ||
689 | static const struct attribute_group vt8231_group = { | |
690 | .attrs = vt8231_attributes, | |
691 | }; | |
692 | ||
ec5e1a4b | 693 | static struct platform_driver vt8231_driver = { |
cdaf7934 | 694 | .driver = { |
87218842 | 695 | .owner = THIS_MODULE, |
cdaf7934 LR |
696 | .name = "vt8231", |
697 | }, | |
ec5e1a4b RL |
698 | .probe = vt8231_probe, |
699 | .remove = __devexit_p(vt8231_remove), | |
1de9e371 RL |
700 | }; |
701 | ||
3dd3a156 | 702 | static const struct pci_device_id vt8231_pci_ids[] = { |
1de9e371 RL |
703 | { PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8231_4) }, |
704 | { 0, } | |
705 | }; | |
706 | ||
707 | MODULE_DEVICE_TABLE(pci, vt8231_pci_ids); | |
708 | ||
709 | static int __devinit vt8231_pci_probe(struct pci_dev *dev, | |
710 | const struct pci_device_id *id); | |
711 | ||
712 | static struct pci_driver vt8231_pci_driver = { | |
713 | .name = "vt8231", | |
714 | .id_table = vt8231_pci_ids, | |
715 | .probe = vt8231_pci_probe, | |
716 | }; | |
717 | ||
a022fef5 | 718 | static int vt8231_probe(struct platform_device *pdev) |
1de9e371 | 719 | { |
ec5e1a4b | 720 | struct resource *res; |
1de9e371 RL |
721 | struct vt8231_data *data; |
722 | int err = 0, i; | |
1de9e371 RL |
723 | |
724 | /* Reserve the ISA region */ | |
ec5e1a4b RL |
725 | res = platform_get_resource(pdev, IORESOURCE_IO, 0); |
726 | if (!request_region(res->start, VT8231_EXTENT, | |
727 | vt8231_driver.driver.name)) { | |
728 | dev_err(&pdev->dev, "Region 0x%lx-0x%lx already in use!\n", | |
729 | (unsigned long)res->start, (unsigned long)res->end); | |
1de9e371 RL |
730 | return -ENODEV; |
731 | } | |
732 | ||
733 | if (!(data = kzalloc(sizeof(struct vt8231_data), GFP_KERNEL))) { | |
734 | err = -ENOMEM; | |
735 | goto exit_release; | |
736 | } | |
737 | ||
ec5e1a4b RL |
738 | platform_set_drvdata(pdev, data); |
739 | data->addr = res->start; | |
740 | data->name = "vt8231"; | |
1de9e371 | 741 | |
9a61bf63 | 742 | mutex_init(&data->update_lock); |
ec5e1a4b | 743 | vt8231_init_device(data); |
1de9e371 RL |
744 | |
745 | /* Register sysfs hooks */ | |
ec5e1a4b RL |
746 | if ((err = sysfs_create_group(&pdev->dev.kobj, &vt8231_group))) |
747 | goto exit_free; | |
1de9e371 RL |
748 | |
749 | /* Must update device information to find out the config field */ | |
ec5e1a4b | 750 | data->uch_config = vt8231_read_value(data, VT8231_REG_UCH_CONFIG); |
1de9e371 | 751 | |
cbeeb5b7 | 752 | for (i = 0; i < ARRAY_SIZE(vt8231_group_temps); i++) { |
1de9e371 | 753 | if (ISTEMP(i, data->uch_config)) { |
ec5e1a4b | 754 | if ((err = sysfs_create_group(&pdev->dev.kobj, |
cbeeb5b7 RL |
755 | &vt8231_group_temps[i]))) |
756 | goto exit_remove_files; | |
1de9e371 RL |
757 | } |
758 | } | |
759 | ||
cbeeb5b7 | 760 | for (i = 0; i < ARRAY_SIZE(vt8231_group_volts); i++) { |
1de9e371 | 761 | if (ISVOLT(i, data->uch_config)) { |
ec5e1a4b | 762 | if ((err = sysfs_create_group(&pdev->dev.kobj, |
cbeeb5b7 RL |
763 | &vt8231_group_volts[i]))) |
764 | goto exit_remove_files; | |
1de9e371 RL |
765 | } |
766 | } | |
767 | ||
1beeffe4 TJ |
768 | data->hwmon_dev = hwmon_device_register(&pdev->dev); |
769 | if (IS_ERR(data->hwmon_dev)) { | |
770 | err = PTR_ERR(data->hwmon_dev); | |
cbeeb5b7 RL |
771 | goto exit_remove_files; |
772 | } | |
1de9e371 RL |
773 | return 0; |
774 | ||
cbeeb5b7 RL |
775 | exit_remove_files: |
776 | for (i = 0; i < ARRAY_SIZE(vt8231_group_volts); i++) | |
ec5e1a4b | 777 | sysfs_remove_group(&pdev->dev.kobj, &vt8231_group_volts[i]); |
cbeeb5b7 RL |
778 | |
779 | for (i = 0; i < ARRAY_SIZE(vt8231_group_temps); i++) | |
ec5e1a4b RL |
780 | sysfs_remove_group(&pdev->dev.kobj, &vt8231_group_temps[i]); |
781 | ||
782 | sysfs_remove_group(&pdev->dev.kobj, &vt8231_group); | |
cbeeb5b7 | 783 | |
1de9e371 | 784 | exit_free: |
04a6217d | 785 | platform_set_drvdata(pdev, NULL); |
1de9e371 | 786 | kfree(data); |
ec5e1a4b | 787 | |
1de9e371 | 788 | exit_release: |
ec5e1a4b | 789 | release_region(res->start, VT8231_EXTENT); |
1de9e371 RL |
790 | return err; |
791 | } | |
792 | ||
d0546128 | 793 | static int __devexit vt8231_remove(struct platform_device *pdev) |
1de9e371 | 794 | { |
ec5e1a4b RL |
795 | struct vt8231_data *data = platform_get_drvdata(pdev); |
796 | int i; | |
1de9e371 | 797 | |
1beeffe4 | 798 | hwmon_device_unregister(data->hwmon_dev); |
1de9e371 | 799 | |
cbeeb5b7 | 800 | for (i = 0; i < ARRAY_SIZE(vt8231_group_volts); i++) |
ec5e1a4b | 801 | sysfs_remove_group(&pdev->dev.kobj, &vt8231_group_volts[i]); |
cbeeb5b7 RL |
802 | |
803 | for (i = 0; i < ARRAY_SIZE(vt8231_group_temps); i++) | |
ec5e1a4b | 804 | sysfs_remove_group(&pdev->dev.kobj, &vt8231_group_temps[i]); |
cbeeb5b7 | 805 | |
ec5e1a4b | 806 | sysfs_remove_group(&pdev->dev.kobj, &vt8231_group); |
cbeeb5b7 | 807 | |
ec5e1a4b RL |
808 | release_region(data->addr, VT8231_EXTENT); |
809 | platform_set_drvdata(pdev, NULL); | |
1de9e371 | 810 | kfree(data); |
1de9e371 RL |
811 | return 0; |
812 | } | |
813 | ||
ec5e1a4b | 814 | static void vt8231_init_device(struct vt8231_data *data) |
1de9e371 | 815 | { |
ec5e1a4b RL |
816 | vt8231_write_value(data, VT8231_REG_TEMP1_CONFIG, 0); |
817 | vt8231_write_value(data, VT8231_REG_TEMP2_CONFIG, 0); | |
1de9e371 RL |
818 | } |
819 | ||
820 | static struct vt8231_data *vt8231_update_device(struct device *dev) | |
821 | { | |
ec5e1a4b | 822 | struct vt8231_data *data = dev_get_drvdata(dev); |
1de9e371 RL |
823 | int i; |
824 | u16 low; | |
825 | ||
9a61bf63 | 826 | mutex_lock(&data->update_lock); |
1de9e371 RL |
827 | |
828 | if (time_after(jiffies, data->last_updated + HZ + HZ / 2) | |
829 | || !data->valid) { | |
830 | for (i = 0; i < 6; i++) { | |
831 | if (ISVOLT(i, data->uch_config)) { | |
ec5e1a4b | 832 | data->in[i] = vt8231_read_value(data, |
1de9e371 | 833 | regvolt[i]); |
ec5e1a4b | 834 | data->in_min[i] = vt8231_read_value(data, |
1de9e371 | 835 | regvoltmin[i]); |
ec5e1a4b | 836 | data->in_max[i] = vt8231_read_value(data, |
1de9e371 RL |
837 | regvoltmax[i]); |
838 | } | |
839 | } | |
840 | for (i = 0; i < 2; i++) { | |
ec5e1a4b | 841 | data->fan[i] = vt8231_read_value(data, |
1de9e371 | 842 | VT8231_REG_FAN(i)); |
ec5e1a4b | 843 | data->fan_min[i] = vt8231_read_value(data, |
1de9e371 RL |
844 | VT8231_REG_FAN_MIN(i)); |
845 | } | |
846 | ||
ec5e1a4b | 847 | low = vt8231_read_value(data, VT8231_REG_TEMP_LOW01); |
1de9e371 | 848 | low = (low >> 6) | ((low & 0x30) >> 2) |
ec5e1a4b | 849 | | (vt8231_read_value(data, VT8231_REG_TEMP_LOW25) << 4); |
1de9e371 RL |
850 | for (i = 0; i < 6; i++) { |
851 | if (ISTEMP(i, data->uch_config)) { | |
ec5e1a4b | 852 | data->temp[i] = (vt8231_read_value(data, |
1de9e371 RL |
853 | regtemp[i]) << 2) |
854 | | ((low >> (2 * i)) & 0x03); | |
ec5e1a4b | 855 | data->temp_max[i] = vt8231_read_value(data, |
1de9e371 | 856 | regtempmax[i]); |
ec5e1a4b | 857 | data->temp_min[i] = vt8231_read_value(data, |
1de9e371 RL |
858 | regtempmin[i]); |
859 | } | |
860 | } | |
861 | ||
ec5e1a4b | 862 | i = vt8231_read_value(data, VT8231_REG_FANDIV); |
1de9e371 RL |
863 | data->fan_div[0] = (i >> 4) & 0x03; |
864 | data->fan_div[1] = i >> 6; | |
ec5e1a4b RL |
865 | data->alarms = vt8231_read_value(data, VT8231_REG_ALARM1) | |
866 | (vt8231_read_value(data, VT8231_REG_ALARM2) << 8); | |
1de9e371 RL |
867 | |
868 | /* Set alarm flags correctly */ | |
869 | if (!data->fan[0] && data->fan_min[0]) { | |
870 | data->alarms |= 0x40; | |
871 | } else if (data->fan[0] && !data->fan_min[0]) { | |
872 | data->alarms &= ~0x40; | |
873 | } | |
874 | ||
875 | if (!data->fan[1] && data->fan_min[1]) { | |
876 | data->alarms |= 0x80; | |
877 | } else if (data->fan[1] && !data->fan_min[1]) { | |
878 | data->alarms &= ~0x80; | |
879 | } | |
880 | ||
881 | data->last_updated = jiffies; | |
882 | data->valid = 1; | |
883 | } | |
884 | ||
9a61bf63 | 885 | mutex_unlock(&data->update_lock); |
1de9e371 RL |
886 | |
887 | return data; | |
888 | } | |
889 | ||
ec5e1a4b RL |
890 | static int __devinit vt8231_device_add(unsigned short address) |
891 | { | |
892 | struct resource res = { | |
893 | .start = address, | |
894 | .end = address + VT8231_EXTENT - 1, | |
895 | .name = "vt8231", | |
896 | .flags = IORESOURCE_IO, | |
897 | }; | |
898 | int err; | |
899 | ||
b9acb64a JD |
900 | err = acpi_check_resource_conflict(&res); |
901 | if (err) | |
902 | goto exit; | |
903 | ||
ec5e1a4b RL |
904 | pdev = platform_device_alloc("vt8231", address); |
905 | if (!pdev) { | |
906 | err = -ENOMEM; | |
9d72be0d | 907 | pr_err("Device allocation failed\n"); |
ec5e1a4b RL |
908 | goto exit; |
909 | } | |
910 | ||
911 | err = platform_device_add_resources(pdev, &res, 1); | |
912 | if (err) { | |
9d72be0d | 913 | pr_err("Device resource addition failed (%d)\n", err); |
ec5e1a4b RL |
914 | goto exit_device_put; |
915 | } | |
916 | ||
917 | err = platform_device_add(pdev); | |
918 | if (err) { | |
9d72be0d | 919 | pr_err("Device addition failed (%d)\n", err); |
ec5e1a4b RL |
920 | goto exit_device_put; |
921 | } | |
922 | ||
923 | return 0; | |
924 | ||
925 | exit_device_put: | |
926 | platform_device_put(pdev); | |
927 | exit: | |
928 | return err; | |
929 | } | |
930 | ||
1de9e371 RL |
931 | static int __devinit vt8231_pci_probe(struct pci_dev *dev, |
932 | const struct pci_device_id *id) | |
933 | { | |
ec5e1a4b RL |
934 | u16 address, val; |
935 | if (force_addr) { | |
936 | address = force_addr & 0xff00; | |
937 | dev_warn(&dev->dev, "Forcing ISA address 0x%x\n", | |
938 | address); | |
939 | ||
940 | if (PCIBIOS_SUCCESSFUL != | |
941 | pci_write_config_word(dev, VT8231_BASE_REG, address | 1)) | |
942 | return -ENODEV; | |
943 | } | |
1de9e371 RL |
944 | |
945 | if (PCIBIOS_SUCCESSFUL != pci_read_config_word(dev, VT8231_BASE_REG, | |
946 | &val)) | |
947 | return -ENODEV; | |
948 | ||
ec5e1a4b RL |
949 | address = val & ~(VT8231_EXTENT - 1); |
950 | if (address == 0) { | |
4cae7878 | 951 | dev_err(&dev->dev, "base address not set - upgrade BIOS or use force_addr=0xaddr\n"); |
1de9e371 RL |
952 | return -ENODEV; |
953 | } | |
954 | ||
ec5e1a4b RL |
955 | if (PCIBIOS_SUCCESSFUL != pci_read_config_word(dev, VT8231_ENABLE_REG, |
956 | &val)) | |
957 | return -ENODEV; | |
1de9e371 | 958 | |
ec5e1a4b RL |
959 | if (!(val & 0x0001)) { |
960 | dev_warn(&dev->dev, "enabling sensors\n"); | |
961 | if (PCIBIOS_SUCCESSFUL != | |
962 | pci_write_config_word(dev, VT8231_ENABLE_REG, | |
963 | val | 0x0001)) | |
964 | return -ENODEV; | |
1de9e371 RL |
965 | } |
966 | ||
ec5e1a4b RL |
967 | if (platform_driver_register(&vt8231_driver)) |
968 | goto exit; | |
969 | ||
970 | /* Sets global pdev as a side effect */ | |
971 | if (vt8231_device_add(address)) | |
972 | goto exit_unregister; | |
973 | ||
1de9e371 RL |
974 | /* Always return failure here. This is to allow other drivers to bind |
975 | * to this pci device. We don't really want to have control over the | |
976 | * pci device, we only wanted to read as few register values from it. | |
977 | */ | |
ec5e1a4b RL |
978 | |
979 | /* We do, however, mark ourselves as using the PCI device to stop it | |
980 | getting unloaded. */ | |
981 | s_bridge = pci_dev_get(dev); | |
982 | return -ENODEV; | |
983 | ||
984 | exit_unregister: | |
985 | platform_driver_unregister(&vt8231_driver); | |
986 | exit: | |
1de9e371 RL |
987 | return -ENODEV; |
988 | } | |
989 | ||
990 | static int __init sm_vt8231_init(void) | |
991 | { | |
93b47684 | 992 | return pci_register_driver(&vt8231_pci_driver); |
1de9e371 RL |
993 | } |
994 | ||
995 | static void __exit sm_vt8231_exit(void) | |
996 | { | |
997 | pci_unregister_driver(&vt8231_pci_driver); | |
998 | if (s_bridge != NULL) { | |
ec5e1a4b RL |
999 | platform_device_unregister(pdev); |
1000 | platform_driver_unregister(&vt8231_driver); | |
1de9e371 RL |
1001 | pci_dev_put(s_bridge); |
1002 | s_bridge = NULL; | |
1003 | } | |
1004 | } | |
1005 | ||
af865765 | 1006 | MODULE_AUTHOR("Roger Lucas <vt8231@hiddenengine.co.uk>"); |
1de9e371 RL |
1007 | MODULE_DESCRIPTION("VT8231 sensors"); |
1008 | MODULE_LICENSE("GPL"); | |
1009 | ||
1010 | module_init(sm_vt8231_init); | |
1011 | module_exit(sm_vt8231_exit); |