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