1/*
2 * abituguru3.c
3 *
4 * Copyright (c) 2006-2008 Hans de Goede <hdegoede@redhat.com>
5 * Copyright (c) 2008 Alistair John Strachan <alistair@devzero.co.uk>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 */
21/*
22 * This driver supports the sensor part of revision 3 of the custom Abit uGuru
23 * chip found on newer Abit uGuru motherboards. Note: because of lack of specs
24 * only reading the sensors and their settings is supported.
25 */
26
27#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
28
29#include <linux/module.h>
30#include <linux/init.h>
31#include <linux/slab.h>
32#include <linux/jiffies.h>
33#include <linux/mutex.h>
34#include <linux/err.h>
35#include <linux/delay.h>
36#include <linux/platform_device.h>
37#include <linux/hwmon.h>
38#include <linux/hwmon-sysfs.h>
39#include <linux/dmi.h>
40#include <linux/io.h>
41
42/* uGuru3 bank addresses */
43#define ABIT_UGURU3_SETTINGS_BANK 0x01
44#define ABIT_UGURU3_SENSORS_BANK 0x08
45#define ABIT_UGURU3_MISC_BANK 0x09
46#define ABIT_UGURU3_ALARMS_START 0x1E
47#define ABIT_UGURU3_SETTINGS_START 0x24
48#define ABIT_UGURU3_VALUES_START 0x80
49#define ABIT_UGURU3_BOARD_ID 0x0A
50/* uGuru3 sensor bank flags */ /* Alarm if: */
51#define ABIT_UGURU3_TEMP_HIGH_ALARM_ENABLE 0x01 /* temp over warn */
52#define ABIT_UGURU3_VOLT_HIGH_ALARM_ENABLE 0x02 /* volt over max */
53#define ABIT_UGURU3_VOLT_LOW_ALARM_ENABLE 0x04 /* volt under min */
54#define ABIT_UGURU3_TEMP_HIGH_ALARM_FLAG 0x10 /* temp is over warn */
55#define ABIT_UGURU3_VOLT_HIGH_ALARM_FLAG 0x20 /* volt is over max */
56#define ABIT_UGURU3_VOLT_LOW_ALARM_FLAG 0x40 /* volt is under min */
57#define ABIT_UGURU3_FAN_LOW_ALARM_ENABLE 0x01 /* fan under min */
58#define ABIT_UGURU3_BEEP_ENABLE 0x08 /* beep if alarm */
59#define ABIT_UGURU3_SHUTDOWN_ENABLE 0x80 /* shutdown if alarm */
60/* sensor types */
61#define ABIT_UGURU3_IN_SENSOR 0
62#define ABIT_UGURU3_TEMP_SENSOR 1
63#define ABIT_UGURU3_FAN_SENSOR 2
64
65/*
66 * Timeouts / Retries, if these turn out to need a lot of fiddling we could
67 * convert them to params. Determined by trial and error. I assume this is
68 * cpu-speed independent, since the ISA-bus and not the CPU should be the
69 * bottleneck.
70 */
71#define ABIT_UGURU3_WAIT_TIMEOUT 250
72/*
73 * Normally the 0xAC at the end of synchronize() is reported after the
74 * first read, but sometimes not and we need to poll
75 */
76#define ABIT_UGURU3_SYNCHRONIZE_TIMEOUT 5
77/* utility macros */
78#define ABIT_UGURU3_NAME "abituguru3"
79#define ABIT_UGURU3_DEBUG(format, arg...) \
80 do { \
81 if (verbose) \
82 pr_debug(format , ## arg); \
83 } while (0)
84
85/* Macros to help calculate the sysfs_names array length */
86#define ABIT_UGURU3_MAX_NO_SENSORS 26
87/*
88 * sum of strlen +1 of: in??_input\0, in??_{min,max}\0, in??_{min,max}_alarm\0,
89 * in??_{min,max}_alarm_enable\0, in??_beep\0, in??_shutdown\0, in??_label\0
90 */
91#define ABIT_UGURU3_IN_NAMES_LENGTH \
92 (11 + 2 * 9 + 2 * 15 + 2 * 22 + 10 + 14 + 11)
93/*
94 * sum of strlen +1 of: temp??_input\0, temp??_max\0, temp??_crit\0,
95 * temp??_alarm\0, temp??_alarm_enable\0, temp??_beep\0, temp??_shutdown\0,
96 * temp??_label\0
97 */
98#define ABIT_UGURU3_TEMP_NAMES_LENGTH (13 + 11 + 12 + 13 + 20 + 12 + 16 + 13)
99/*
100 * sum of strlen +1 of: fan??_input\0, fan??_min\0, fan??_alarm\0,
101 * fan??_alarm_enable\0, fan??_beep\0, fan??_shutdown\0, fan??_label\0
102 */
103#define ABIT_UGURU3_FAN_NAMES_LENGTH (12 + 10 + 12 + 19 + 11 + 15 + 12)
104/*
105 * Worst case scenario 16 in sensors (longest names_length) and the rest
106 * temp sensors (second longest names_length).
107 */
108#define ABIT_UGURU3_SYSFS_NAMES_LENGTH (16 * ABIT_UGURU3_IN_NAMES_LENGTH + \
109 (ABIT_UGURU3_MAX_NO_SENSORS - 16) * ABIT_UGURU3_TEMP_NAMES_LENGTH)
110
111/*
112 * All the macros below are named identical to the openguru2 program
113 * reverse engineered by Louis Kruger, hence the names might not be 100%
114 * logical. I could come up with better names, but I prefer keeping the names
115 * identical so that this driver can be compared with his work more easily.
116 */
117/* Two i/o-ports are used by uGuru */
118#define ABIT_UGURU3_BASE 0x00E0
119#define ABIT_UGURU3_CMD 0x00
120#define ABIT_UGURU3_DATA 0x04
121#define ABIT_UGURU3_REGION_LENGTH 5
122/*
123 * The wait_xxx functions return this on success and the last contents
124 * of the DATA register (0-255) on failure.
125 */
126#define ABIT_UGURU3_SUCCESS -1
127/* uGuru status flags */
128#define ABIT_UGURU3_STATUS_READY_FOR_READ 0x01
129#define ABIT_UGURU3_STATUS_BUSY 0x02
130
131
132/* Structures */
133struct abituguru3_sensor_info {
134 const char *name;
135 int port;
136 int type;
137 int multiplier;
138 int divisor;
139 int offset;
140};
141
142/* Avoid use of flexible array members */
143#define ABIT_UGURU3_MAX_DMI_NAMES 2
144
145struct abituguru3_motherboard_info {
146 u16 id;
147 const char *dmi_name[ABIT_UGURU3_MAX_DMI_NAMES + 1];
148 /* + 1 -> end of sensors indicated by a sensor with name == NULL */
149 struct abituguru3_sensor_info sensors[ABIT_UGURU3_MAX_NO_SENSORS + 1];
150};
151
152/*
153 * For the Abit uGuru, we need to keep some data in memory.
154 * The structure is dynamically allocated, at the same time when a new
155 * abituguru3 device is allocated.
156 */
157struct abituguru3_data {
158 struct device *hwmon_dev; /* hwmon registered device */
159 struct mutex update_lock; /* protect access to data and uGuru */
160 unsigned short addr; /* uguru base address */
161 char valid; /* !=0 if following fields are valid */
162 unsigned long last_updated; /* In jiffies */
163
164 /*
165 * For convenience the sysfs attr and their names are generated
166 * automatically. We have max 10 entries per sensor (for in sensors)
167 */
168 struct sensor_device_attribute_2 sysfs_attr[ABIT_UGURU3_MAX_NO_SENSORS
169 * 10];
170
171 /* Buffer to store the dynamically generated sysfs names */
172 char sysfs_names[ABIT_UGURU3_SYSFS_NAMES_LENGTH];
173
174 /* Pointer to the sensors info for the detected motherboard */
175 const struct abituguru3_sensor_info *sensors;
176
177 /*
178 * The abituguru3 supports up to 48 sensors, and thus has registers
179 * sets for 48 sensors, for convenience reasons / simplicity of the
180 * code we always read and store all registers for all 48 sensors
181 */
182
183 /* Alarms for all 48 sensors (1 bit per sensor) */
184 u8 alarms[48/8];
185
186 /* Value of all 48 sensors */
187 u8 value[48];
188
189 /*
190 * Settings of all 48 sensors, note in and temp sensors (the first 32
191 * sensors) have 3 bytes of settings, while fans only have 2 bytes,
192 * for convenience we use 3 bytes for all sensors
193 */
194 u8 settings[48][3];
195};
196
197
198/* Constants */
199static const struct abituguru3_motherboard_info abituguru3_motherboards[] = {
200 { 0x000C, { NULL } /* Unknown, need DMI string */, {
201 { "CPU Core", 0, 0, 10, 1, 0 },
202 { "DDR", 1, 0, 10, 1, 0 },
203 { "DDR VTT", 2, 0, 10, 1, 0 },
204 { "CPU VTT 1.2V", 3, 0, 10, 1, 0 },
205 { "MCH & PCIE 1.5V", 4, 0, 10, 1, 0 },
206 { "MCH 2.5V", 5, 0, 20, 1, 0 },
207 { "ICH 1.05V", 6, 0, 10, 1, 0 },
208 { "ATX +12V (24-Pin)", 7, 0, 60, 1, 0 },
209 { "ATX +12V (4-pin)", 8, 0, 60, 1, 0 },
210 { "ATX +5V", 9, 0, 30, 1, 0 },
211 { "+3.3V", 10, 0, 20, 1, 0 },
212 { "5VSB", 11, 0, 30, 1, 0 },
213 { "CPU", 24, 1, 1, 1, 0 },
214 { "System", 25, 1, 1, 1, 0 },
215 { "PWM", 26, 1, 1, 1, 0 },
216 { "CPU Fan", 32, 2, 60, 1, 0 },
217 { "NB Fan", 33, 2, 60, 1, 0 },
218 { "SYS FAN", 34, 2, 60, 1, 0 },
219 { "AUX1 Fan", 35, 2, 60, 1, 0 },
220 { NULL, 0, 0, 0, 0, 0 } }
221 },
222 { 0x000D, { NULL } /* Abit AW8, need DMI string */, {
223 { "CPU Core", 0, 0, 10, 1, 0 },
224 { "DDR", 1, 0, 10, 1, 0 },
225 { "DDR VTT", 2, 0, 10, 1, 0 },
226 { "CPU VTT 1.2V", 3, 0, 10, 1, 0 },
227 { "MCH & PCIE 1.5V", 4, 0, 10, 1, 0 },
228 { "MCH 2.5V", 5, 0, 20, 1, 0 },
229 { "ICH 1.05V", 6, 0, 10, 1, 0 },
230 { "ATX +12V (24-Pin)", 7, 0, 60, 1, 0 },
231 { "ATX +12V (4-pin)", 8, 0, 60, 1, 0 },
232 { "ATX +5V", 9, 0, 30, 1, 0 },
233 { "+3.3V", 10, 0, 20, 1, 0 },
234 { "5VSB", 11, 0, 30, 1, 0 },
235 { "CPU", 24, 1, 1, 1, 0 },
236 { "System", 25, 1, 1, 1, 0 },
237 { "PWM1", 26, 1, 1, 1, 0 },
238 { "PWM2", 27, 1, 1, 1, 0 },
239 { "PWM3", 28, 1, 1, 1, 0 },
240 { "PWM4", 29, 1, 1, 1, 0 },
241 { "CPU Fan", 32, 2, 60, 1, 0 },
242 { "NB Fan", 33, 2, 60, 1, 0 },
243 { "SYS Fan", 34, 2, 60, 1, 0 },
244 { "AUX1 Fan", 35, 2, 60, 1, 0 },
245 { "AUX2 Fan", 36, 2, 60, 1, 0 },
246 { "AUX3 Fan", 37, 2, 60, 1, 0 },
247 { "AUX4 Fan", 38, 2, 60, 1, 0 },
248 { "AUX5 Fan", 39, 2, 60, 1, 0 },
249 { NULL, 0, 0, 0, 0, 0 } }
250 },
251 { 0x000E, { NULL } /* AL-8, need DMI string */, {
252 { "CPU Core", 0, 0, 10, 1, 0 },
253 { "DDR", 1, 0, 10, 1, 0 },
254 { "DDR VTT", 2, 0, 10, 1, 0 },
255 { "CPU VTT 1.2V", 3, 0, 10, 1, 0 },
256 { "MCH & PCIE 1.5V", 4, 0, 10, 1, 0 },
257 { "MCH 2.5V", 5, 0, 20, 1, 0 },
258 { "ICH 1.05V", 6, 0, 10, 1, 0 },
259 { "ATX +12V (24-Pin)", 7, 0, 60, 1, 0 },
260 { "ATX +12V (4-pin)", 8, 0, 60, 1, 0 },
261 { "ATX +5V", 9, 0, 30, 1, 0 },
262 { "+3.3V", 10, 0, 20, 1, 0 },
263 { "5VSB", 11, 0, 30, 1, 0 },
264 { "CPU", 24, 1, 1, 1, 0 },
265 { "System", 25, 1, 1, 1, 0 },
266 { "PWM", 26, 1, 1, 1, 0 },
267 { "CPU Fan", 32, 2, 60, 1, 0 },
268 { "NB Fan", 33, 2, 60, 1, 0 },
269 { "SYS Fan", 34, 2, 60, 1, 0 },
270 { NULL, 0, 0, 0, 0, 0 } }
271 },
272 { 0x000F, { NULL } /* Unknown, need DMI string */, {
273
274 { "CPU Core", 0, 0, 10, 1, 0 },
275 { "DDR", 1, 0, 10, 1, 0 },
276 { "DDR VTT", 2, 0, 10, 1, 0 },
277 { "CPU VTT 1.2V", 3, 0, 10, 1, 0 },
278 { "MCH & PCIE 1.5V", 4, 0, 10, 1, 0 },
279 { "MCH 2.5V", 5, 0, 20, 1, 0 },
280 { "ICH 1.05V", 6, 0, 10, 1, 0 },
281 { "ATX +12V (24-Pin)", 7, 0, 60, 1, 0 },
282 { "ATX +12V (4-pin)", 8, 0, 60, 1, 0 },
283 { "ATX +5V", 9, 0, 30, 1, 0 },
284 { "+3.3V", 10, 0, 20, 1, 0 },
285 { "5VSB", 11, 0, 30, 1, 0 },
286 { "CPU", 24, 1, 1, 1, 0 },
287 { "System", 25, 1, 1, 1, 0 },
288 { "PWM", 26, 1, 1, 1, 0 },
289 { "CPU Fan", 32, 2, 60, 1, 0 },
290 { "NB Fan", 33, 2, 60, 1, 0 },
291 { "SYS Fan", 34, 2, 60, 1, 0 },
292 { NULL, 0, 0, 0, 0, 0 } }
293 },
294 { 0x0010, { NULL } /* Abit NI8 SLI GR, need DMI string */, {
295 { "CPU Core", 0, 0, 10, 1, 0 },
296 { "DDR", 1, 0, 10, 1, 0 },
297 { "DDR VTT", 2, 0, 10, 1, 0 },
298 { "CPU VTT 1.2V", 3, 0, 10, 1, 0 },
299 { "NB 1.4V", 4, 0, 10, 1, 0 },
300 { "SB 1.5V", 6, 0, 10, 1, 0 },
301 { "ATX +12V (24-Pin)", 7, 0, 60, 1, 0 },
302 { "ATX +12V (4-pin)", 8, 0, 60, 1, 0 },
303 { "ATX +5V", 9, 0, 30, 1, 0 },
304 { "+3.3V", 10, 0, 20, 1, 0 },
305 { "5VSB", 11, 0, 30, 1, 0 },
306 { "CPU", 24, 1, 1, 1, 0 },
307 { "SYS", 25, 1, 1, 1, 0 },
308 { "PWM", 26, 1, 1, 1, 0 },
309 { "CPU Fan", 32, 2, 60, 1, 0 },
310 { "NB Fan", 33, 2, 60, 1, 0 },
311 { "SYS Fan", 34, 2, 60, 1, 0 },
312 { "AUX1 Fan", 35, 2, 60, 1, 0 },
313 { "OTES1 Fan", 36, 2, 60, 1, 0 },
314 { NULL, 0, 0, 0, 0, 0 } }
315 },
316 { 0x0011, { "AT8 32X", NULL }, {
317 { "CPU Core", 0, 0, 10, 1, 0 },
318 { "DDR", 1, 0, 20, 1, 0 },
319 { "DDR VTT", 2, 0, 10, 1, 0 },
320 { "CPU VDDA 2.5V", 6, 0, 20, 1, 0 },
321 { "NB 1.8V", 4, 0, 10, 1, 0 },
322 { "NB 1.8V Dual", 5, 0, 10, 1, 0 },
323 { "HTV 1.2", 3, 0, 10, 1, 0 },
324 { "PCIE 1.2V", 12, 0, 10, 1, 0 },
325 { "NB 1.2V", 13, 0, 10, 1, 0 },
326 { "ATX +12V (24-Pin)", 7, 0, 60, 1, 0 },
327 { "ATX +12V (4-pin)", 8, 0, 60, 1, 0 },
328 { "ATX +5V", 9, 0, 30, 1, 0 },
329 { "+3.3V", 10, 0, 20, 1, 0 },
330 { "5VSB", 11, 0, 30, 1, 0 },
331 { "CPU", 24, 1, 1, 1, 0 },
332 { "NB", 25, 1, 1, 1, 0 },
333 { "System", 26, 1, 1, 1, 0 },
334 { "PWM", 27, 1, 1, 1, 0 },
335 { "CPU Fan", 32, 2, 60, 1, 0 },
336 { "NB Fan", 33, 2, 60, 1, 0 },
337 { "SYS Fan", 34, 2, 60, 1, 0 },
338 { "AUX1 Fan", 35, 2, 60, 1, 0 },
339 { "AUX2 Fan", 36, 2, 60, 1, 0 },
340 { "AUX3 Fan", 37, 2, 60, 1, 0 },
341 { NULL, 0, 0, 0, 0, 0 } }
342 },
343 { 0x0012, { NULL } /* Abit AN8 32X, need DMI string */, {
344 { "CPU Core", 0, 0, 10, 1, 0 },
345 { "DDR", 1, 0, 20, 1, 0 },
346 { "DDR VTT", 2, 0, 10, 1, 0 },
347 { "HyperTransport", 3, 0, 10, 1, 0 },
348 { "CPU VDDA 2.5V", 5, 0, 20, 1, 0 },
349 { "NB", 4, 0, 10, 1, 0 },
350 { "SB", 6, 0, 10, 1, 0 },
351 { "ATX +12V (24-Pin)", 7, 0, 60, 1, 0 },
352 { "ATX +12V (4-pin)", 8, 0, 60, 1, 0 },
353 { "ATX +5V", 9, 0, 30, 1, 0 },
354 { "+3.3V", 10, 0, 20, 1, 0 },
355 { "5VSB", 11, 0, 30, 1, 0 },
356 { "CPU", 24, 1, 1, 1, 0 },
357 { "SYS", 25, 1, 1, 1, 0 },
358 { "PWM", 26, 1, 1, 1, 0 },
359 { "CPU Fan", 32, 2, 60, 1, 0 },
360 { "NB Fan", 33, 2, 60, 1, 0 },
361 { "SYS Fan", 34, 2, 60, 1, 0 },
362 { "AUX1 Fan", 36, 2, 60, 1, 0 },
363 { NULL, 0, 0, 0, 0, 0 } }
364 },
365 { 0x0013, { NULL } /* Abit AW8D, need DMI string */, {
366 { "CPU Core", 0, 0, 10, 1, 0 },
367 { "DDR", 1, 0, 10, 1, 0 },
368 { "DDR VTT", 2, 0, 10, 1, 0 },
369 { "CPU VTT 1.2V", 3, 0, 10, 1, 0 },
370 { "MCH & PCIE 1.5V", 4, 0, 10, 1, 0 },
371 { "MCH 2.5V", 5, 0, 20, 1, 0 },
372 { "ICH 1.05V", 6, 0, 10, 1, 0 },
373 { "ATX +12V (24-Pin)", 7, 0, 60, 1, 0 },
374 { "ATX +12V (4-pin)", 8, 0, 60, 1, 0 },
375 { "ATX +5V", 9, 0, 30, 1, 0 },
376 { "+3.3V", 10, 0, 20, 1, 0 },
377 { "5VSB", 11, 0, 30, 1, 0 },
378 { "CPU", 24, 1, 1, 1, 0 },
379 { "System", 25, 1, 1, 1, 0 },
380 { "PWM1", 26, 1, 1, 1, 0 },
381 { "PWM2", 27, 1, 1, 1, 0 },
382 { "PWM3", 28, 1, 1, 1, 0 },
383 { "PWM4", 29, 1, 1, 1, 0 },
384 { "CPU Fan", 32, 2, 60, 1, 0 },
385 { "NB Fan", 33, 2, 60, 1, 0 },
386 { "SYS Fan", 34, 2, 60, 1, 0 },
387 { "AUX1 Fan", 35, 2, 60, 1, 0 },
388 { "AUX2 Fan", 36, 2, 60, 1, 0 },
389 { "AUX3 Fan", 37, 2, 60, 1, 0 },
390 { "AUX4 Fan", 38, 2, 60, 1, 0 },
391 { "AUX5 Fan", 39, 2, 60, 1, 0 },
392 { NULL, 0, 0, 0, 0, 0 } }
393 },
394 { 0x0014, { "AB9", "AB9 Pro", NULL }, {
395 { "CPU Core", 0, 0, 10, 1, 0 },
396 { "DDR", 1, 0, 10, 1, 0 },
397 { "DDR VTT", 2, 0, 10, 1, 0 },
398 { "CPU VTT 1.2V", 3, 0, 10, 1, 0 },
399 { "MCH & PCIE 1.5V", 4, 0, 10, 1, 0 },
400 { "MCH 2.5V", 5, 0, 20, 1, 0 },
401 { "ICH 1.05V", 6, 0, 10, 1, 0 },
402 { "ATX +12V (24-Pin)", 7, 0, 60, 1, 0 },
403 { "ATX +12V (4-pin)", 8, 0, 60, 1, 0 },
404 { "ATX +5V", 9, 0, 30, 1, 0 },
405 { "+3.3V", 10, 0, 20, 1, 0 },
406 { "5VSB", 11, 0, 30, 1, 0 },
407 { "CPU", 24, 1, 1, 1, 0 },
408 { "System", 25, 1, 1, 1, 0 },
409 { "PWM", 26, 1, 1, 1, 0 },
410 { "CPU Fan", 32, 2, 60, 1, 0 },
411 { "NB Fan", 33, 2, 60, 1, 0 },
412 { "SYS Fan", 34, 2, 60, 1, 0 },
413 { NULL, 0, 0, 0, 0, 0 } }
414 },
415 { 0x0015, { NULL } /* Unknown, need DMI string */, {
416 { "CPU Core", 0, 0, 10, 1, 0 },
417 { "DDR", 1, 0, 20, 1, 0 },
418 { "DDR VTT", 2, 0, 10, 1, 0 },
419 { "HyperTransport", 3, 0, 10, 1, 0 },
420 { "CPU VDDA 2.5V", 5, 0, 20, 1, 0 },
421 { "NB", 4, 0, 10, 1, 0 },
422 { "SB", 6, 0, 10, 1, 0 },
423 { "ATX +12V (24-Pin)", 7, 0, 60, 1, 0 },
424 { "ATX +12V (4-pin)", 8, 0, 60, 1, 0 },
425 { "ATX +5V", 9, 0, 30, 1, 0 },
426 { "+3.3V", 10, 0, 20, 1, 0 },
427 { "5VSB", 11, 0, 30, 1, 0 },
428 { "CPU", 24, 1, 1, 1, 0 },
429 { "SYS", 25, 1, 1, 1, 0 },
430 { "PWM", 26, 1, 1, 1, 0 },
431 { "CPU Fan", 32, 2, 60, 1, 0 },
432 { "NB Fan", 33, 2, 60, 1, 0 },
433 { "SYS Fan", 34, 2, 60, 1, 0 },
434 { "AUX1 Fan", 33, 2, 60, 1, 0 },
435 { "AUX2 Fan", 35, 2, 60, 1, 0 },
436 { "AUX3 Fan", 36, 2, 60, 1, 0 },
437 { NULL, 0, 0, 0, 0, 0 } }
438 },
439 { 0x0016, { "AW9D-MAX", NULL }, {
440 { "CPU Core", 0, 0, 10, 1, 0 },
441 { "DDR2", 1, 0, 20, 1, 0 },
442 { "DDR2 VTT", 2, 0, 10, 1, 0 },
443 { "CPU VTT 1.2V", 3, 0, 10, 1, 0 },
444 { "MCH & PCIE 1.5V", 4, 0, 10, 1, 0 },
445 { "MCH 2.5V", 5, 0, 20, 1, 0 },
446 { "ICH 1.05V", 6, 0, 10, 1, 0 },
447 { "ATX +12V (24-Pin)", 7, 0, 60, 1, 0 },
448 { "ATX +12V (4-pin)", 8, 0, 60, 1, 0 },
449 { "ATX +5V", 9, 0, 30, 1, 0 },
450 { "+3.3V", 10, 0, 20, 1, 0 },
451 { "5VSB", 11, 0, 30, 1, 0 },
452 { "CPU", 24, 1, 1, 1, 0 },
453 { "System", 25, 1, 1, 1, 0 },
454 { "PWM1", 26, 1, 1, 1, 0 },
455 { "PWM2", 27, 1, 1, 1, 0 },
456 { "PWM3", 28, 1, 1, 1, 0 },
457 { "PWM4", 29, 1, 1, 1, 0 },
458 { "CPU Fan", 32, 2, 60, 1, 0 },
459 { "NB Fan", 33, 2, 60, 1, 0 },
460 { "SYS Fan", 34, 2, 60, 1, 0 },
461 { "AUX1 Fan", 35, 2, 60, 1, 0 },
462 { "AUX2 Fan", 36, 2, 60, 1, 0 },
463 { "AUX3 Fan", 37, 2, 60, 1, 0 },
464 { "OTES1 Fan", 38, 2, 60, 1, 0 },
465 { NULL, 0, 0, 0, 0, 0 } }
466 },
467 { 0x0017, { NULL } /* Unknown, need DMI string */, {
468 { "CPU Core", 0, 0, 10, 1, 0 },
469 { "DDR2", 1, 0, 20, 1, 0 },
470 { "DDR2 VTT", 2, 0, 10, 1, 0 },
471 { "HyperTransport", 3, 0, 10, 1, 0 },
472 { "CPU VDDA 2.5V", 6, 0, 20, 1, 0 },
473 { "NB 1.8V", 4, 0, 10, 1, 0 },
474 { "NB 1.2V ", 13, 0, 10, 1, 0 },
475 { "SB 1.2V", 5, 0, 10, 1, 0 },
476 { "PCIE 1.2V", 12, 0, 10, 1, 0 },
477 { "ATX +12V (24-Pin)", 7, 0, 60, 1, 0 },
478 { "ATX +12V (4-pin)", 8, 0, 60, 1, 0 },
479 { "ATX +5V", 9, 0, 30, 1, 0 },
480 { "ATX +3.3V", 10, 0, 20, 1, 0 },
481 { "ATX 5VSB", 11, 0, 30, 1, 0 },
482 { "CPU", 24, 1, 1, 1, 0 },
483 { "System", 26, 1, 1, 1, 0 },
484 { "PWM", 27, 1, 1, 1, 0 },
485 { "CPU FAN", 32, 2, 60, 1, 0 },
486 { "SYS FAN", 34, 2, 60, 1, 0 },
487 { "AUX1 FAN", 35, 2, 60, 1, 0 },
488 { "AUX2 FAN", 36, 2, 60, 1, 0 },
489 { "AUX3 FAN", 37, 2, 60, 1, 0 },
490 { NULL, 0, 0, 0, 0, 0 } }
491 },
492 { 0x0018, { "AB9 QuadGT", NULL }, {
493 { "CPU Core", 0, 0, 10, 1, 0 },
494 { "DDR2", 1, 0, 20, 1, 0 },
495 { "DDR2 VTT", 2, 0, 10, 1, 0 },
496 { "CPU VTT", 3, 0, 10, 1, 0 },
497 { "MCH 1.25V", 4, 0, 10, 1, 0 },
498 { "ICHIO 1.5V", 5, 0, 10, 1, 0 },
499 { "ICH 1.05V", 6, 0, 10, 1, 0 },
500 { "ATX +12V (24-Pin)", 7, 0, 60, 1, 0 },
501 { "ATX +12V (4-pin)", 8, 0, 60, 1, 0 },
502 { "ATX +5V", 9, 0, 30, 1, 0 },
503 { "+3.3V", 10, 0, 20, 1, 0 },
504 { "5VSB", 11, 0, 30, 1, 0 },
505 { "CPU", 24, 1, 1, 1, 0 },
506 { "System", 25, 1, 1, 1, 0 },
507 { "PWM Phase1", 26, 1, 1, 1, 0 },
508 { "PWM Phase2", 27, 1, 1, 1, 0 },
509 { "PWM Phase3", 28, 1, 1, 1, 0 },
510 { "PWM Phase4", 29, 1, 1, 1, 0 },
511 { "PWM Phase5", 30, 1, 1, 1, 0 },
512 { "CPU Fan", 32, 2, 60, 1, 0 },
513 { "SYS Fan", 34, 2, 60, 1, 0 },
514 { "AUX1 Fan", 33, 2, 60, 1, 0 },
515 { "AUX2 Fan", 35, 2, 60, 1, 0 },
516 { "AUX3 Fan", 36, 2, 60, 1, 0 },
517 { NULL, 0, 0, 0, 0, 0 } }
518 },
519 { 0x0019, { "IN9 32X MAX", NULL }, {
520 { "CPU Core", 7, 0, 10, 1, 0 },
521 { "DDR2", 13, 0, 20, 1, 0 },
522 { "DDR2 VTT", 14, 0, 10, 1, 0 },
523 { "CPU VTT", 3, 0, 20, 1, 0 },
524 { "NB 1.2V", 4, 0, 10, 1, 0 },
525 { "SB 1.5V", 6, 0, 10, 1, 0 },
526 { "HyperTransport", 5, 0, 10, 1, 0 },
527 { "ATX +12V (24-Pin)", 12, 0, 60, 1, 0 },
528 { "ATX +12V (4-pin)", 8, 0, 60, 1, 0 },
529 { "ATX +5V", 9, 0, 30, 1, 0 },
530 { "ATX +3.3V", 10, 0, 20, 1, 0 },
531 { "ATX 5VSB", 11, 0, 30, 1, 0 },
532 { "CPU", 24, 1, 1, 1, 0 },
533 { "System", 25, 1, 1, 1, 0 },
534 { "PWM Phase1", 26, 1, 1, 1, 0 },
535 { "PWM Phase2", 27, 1, 1, 1, 0 },
536 { "PWM Phase3", 28, 1, 1, 1, 0 },
537 { "PWM Phase4", 29, 1, 1, 1, 0 },
538 { "PWM Phase5", 30, 1, 1, 1, 0 },
539 { "CPU FAN", 32, 2, 60, 1, 0 },
540 { "SYS FAN", 34, 2, 60, 1, 0 },
541 { "AUX1 FAN", 33, 2, 60, 1, 0 },
542 { "AUX2 FAN", 35, 2, 60, 1, 0 },
543 { "AUX3 FAN", 36, 2, 60, 1, 0 },
544 { NULL, 0, 0, 0, 0, 0 } }
545 },
546 { 0x001A, { "IP35 Pro", "IP35 Pro XE", NULL }, {
547 { "CPU Core", 0, 0, 10, 1, 0 },
548 { "DDR2", 1, 0, 20, 1, 0 },
549 { "DDR2 VTT", 2, 0, 10, 1, 0 },
550 { "CPU VTT 1.2V", 3, 0, 10, 1, 0 },
551 { "MCH 1.25V", 4, 0, 10, 1, 0 },
552 { "ICHIO 1.5V", 5, 0, 10, 1, 0 },
553 { "ICH 1.05V", 6, 0, 10, 1, 0 },
554 { "ATX +12V (24-Pin)", 7, 0, 60, 1, 0 },
555 { "ATX +12V (8-pin)", 8, 0, 60, 1, 0 },
556 { "ATX +5V", 9, 0, 30, 1, 0 },
557 { "+3.3V", 10, 0, 20, 1, 0 },
558 { "5VSB", 11, 0, 30, 1, 0 },
559 { "CPU", 24, 1, 1, 1, 0 },
560 { "System", 25, 1, 1, 1, 0 },
561 { "PWM", 26, 1, 1, 1, 0 },
562 { "PWM Phase2", 27, 1, 1, 1, 0 },
563 { "PWM Phase3", 28, 1, 1, 1, 0 },
564 { "PWM Phase4", 29, 1, 1, 1, 0 },
565 { "PWM Phase5", 30, 1, 1, 1, 0 },
566 { "CPU Fan", 32, 2, 60, 1, 0 },
567 { "SYS Fan", 34, 2, 60, 1, 0 },
568 { "AUX1 Fan", 33, 2, 60, 1, 0 },
569 { "AUX2 Fan", 35, 2, 60, 1, 0 },
570 { "AUX3 Fan", 36, 2, 60, 1, 0 },
571 { "AUX4 Fan", 37, 2, 60, 1, 0 },
572 { NULL, 0, 0, 0, 0, 0 } }
573 },
574 { 0x001B, { NULL } /* Unknown, need DMI string */, {
575 { "CPU Core", 0, 0, 10, 1, 0 },
576 { "DDR3", 1, 0, 20, 1, 0 },
577 { "DDR3 VTT", 2, 0, 10, 1, 0 },
578 { "CPU VTT", 3, 0, 10, 1, 0 },
579 { "MCH 1.25V", 4, 0, 10, 1, 0 },
580 { "ICHIO 1.5V", 5, 0, 10, 1, 0 },
581 { "ICH 1.05V", 6, 0, 10, 1, 0 },
582 { "ATX +12V (24-Pin)", 7, 0, 60, 1, 0 },
583 { "ATX +12V (8-pin)", 8, 0, 60, 1, 0 },
584 { "ATX +5V", 9, 0, 30, 1, 0 },
585 { "+3.3V", 10, 0, 20, 1, 0 },
586 { "5VSB", 11, 0, 30, 1, 0 },
587 { "CPU", 24, 1, 1, 1, 0 },
588 { "System", 25, 1, 1, 1, 0 },
589 { "PWM Phase1", 26, 1, 1, 1, 0 },
590 { "PWM Phase2", 27, 1, 1, 1, 0 },
591 { "PWM Phase3", 28, 1, 1, 1, 0 },
592 { "PWM Phase4", 29, 1, 1, 1, 0 },
593 { "PWM Phase5", 30, 1, 1, 1, 0 },
594 { "CPU Fan", 32, 2, 60, 1, 0 },
595 { "SYS Fan", 34, 2, 60, 1, 0 },
596 { "AUX1 Fan", 33, 2, 60, 1, 0 },
597 { "AUX2 Fan", 35, 2, 60, 1, 0 },
598 { "AUX3 Fan", 36, 2, 60, 1, 0 },
599 { NULL, 0, 0, 0, 0, 0 } }
600 },
601 { 0x001C, { "IX38 QuadGT", NULL }, {
602 { "CPU Core", 0, 0, 10, 1, 0 },
603 { "DDR2", 1, 0, 20, 1, 0 },
604 { "DDR2 VTT", 2, 0, 10, 1, 0 },
605 { "CPU VTT", 3, 0, 10, 1, 0 },
606 { "MCH 1.25V", 4, 0, 10, 1, 0 },
607 { "ICHIO 1.5V", 5, 0, 10, 1, 0 },
608 { "ICH 1.05V", 6, 0, 10, 1, 0 },
609 { "ATX +12V (24-Pin)", 7, 0, 60, 1, 0 },
610 { "ATX +12V (8-pin)", 8, 0, 60, 1, 0 },
611 { "ATX +5V", 9, 0, 30, 1, 0 },
612 { "+3.3V", 10, 0, 20, 1, 0 },
613 { "5VSB", 11, 0, 30, 1, 0 },
614 { "CPU", 24, 1, 1, 1, 0 },
615 { "System", 25, 1, 1, 1, 0 },
616 { "PWM Phase1", 26, 1, 1, 1, 0 },
617 { "PWM Phase2", 27, 1, 1, 1, 0 },
618 { "PWM Phase3", 28, 1, 1, 1, 0 },
619 { "PWM Phase4", 29, 1, 1, 1, 0 },
620 { "PWM Phase5", 30, 1, 1, 1, 0 },
621 { "CPU Fan", 32, 2, 60, 1, 0 },
622 { "SYS Fan", 34, 2, 60, 1, 0 },
623 { "AUX1 Fan", 33, 2, 60, 1, 0 },
624 { "AUX2 Fan", 35, 2, 60, 1, 0 },
625 { "AUX3 Fan", 36, 2, 60, 1, 0 },
626 { NULL, 0, 0, 0, 0, 0 } }
627 },
628 { 0x0000, { NULL }, { { NULL, 0, 0, 0, 0, 0 } } }
629};
630
631
632/* Insmod parameters */
633static bool force;
634module_param(force, bool, 0);
635MODULE_PARM_DESC(force, "Set to one to force detection.");
636/* Default verbose is 1, since this driver is still in the testing phase */
637static bool verbose = 1;
638module_param(verbose, bool, 0644);
639MODULE_PARM_DESC(verbose, "Enable/disable verbose error reporting");
640
641static const char *never_happen = "This should never happen.";
642static const char *report_this =
643 "Please report this to the abituguru3 maintainer (see MAINTAINERS)";
644
645/* wait while the uguru is busy (usually after a write) */
646static int abituguru3_wait_while_busy(struct abituguru3_data *data)
647{
648 u8 x;
649 int timeout = ABIT_UGURU3_WAIT_TIMEOUT;
650
651 while ((x = inb_p(data->addr + ABIT_UGURU3_DATA)) &
652 ABIT_UGURU3_STATUS_BUSY) {
653 timeout--;
654 if (timeout == 0)
655 return x;
656 /*
657 * sleep a bit before our last try, to give the uGuru3 one
658 * last chance to respond.
659 */
660 if (timeout == 1)
661 msleep(1);
662 }
663 return ABIT_UGURU3_SUCCESS;
664}
665
666/* wait till uguru is ready to be read */
667static int abituguru3_wait_for_read(struct abituguru3_data *data)
668{
669 u8 x;
670 int timeout = ABIT_UGURU3_WAIT_TIMEOUT;
671
672 while (!((x = inb_p(data->addr + ABIT_UGURU3_DATA)) &
673 ABIT_UGURU3_STATUS_READY_FOR_READ)) {
674 timeout--;
675 if (timeout == 0)
676 return x;
677 /*
678 * sleep a bit before our last try, to give the uGuru3 one
679 * last chance to respond.
680 */
681 if (timeout == 1)
682 msleep(1);
683 }
684 return ABIT_UGURU3_SUCCESS;
685}
686
687/*
688 * This synchronizes us with the uGuru3's protocol state machine, this
689 * must be done before each command.
690 */
691static int abituguru3_synchronize(struct abituguru3_data *data)
692{
693 int x, timeout = ABIT_UGURU3_SYNCHRONIZE_TIMEOUT;
694
695 x = abituguru3_wait_while_busy(data);
696 if (x != ABIT_UGURU3_SUCCESS) {
697 ABIT_UGURU3_DEBUG("synchronize timeout during initial busy "
698 "wait, status: 0x%02x\n", x);
699 return -EIO;
700 }
701
702 outb(0x20, data->addr + ABIT_UGURU3_DATA);
703 x = abituguru3_wait_while_busy(data);
704 if (x != ABIT_UGURU3_SUCCESS) {
705 ABIT_UGURU3_DEBUG("synchronize timeout after sending 0x20, "
706 "status: 0x%02x\n", x);
707 return -EIO;
708 }
709
710 outb(0x10, data->addr + ABIT_UGURU3_CMD);
711 x = abituguru3_wait_while_busy(data);
712 if (x != ABIT_UGURU3_SUCCESS) {
713 ABIT_UGURU3_DEBUG("synchronize timeout after sending 0x10, "
714 "status: 0x%02x\n", x);
715 return -EIO;
716 }
717
718 outb(0x00, data->addr + ABIT_UGURU3_CMD);
719 x = abituguru3_wait_while_busy(data);
720 if (x != ABIT_UGURU3_SUCCESS) {
721 ABIT_UGURU3_DEBUG("synchronize timeout after sending 0x00, "
722 "status: 0x%02x\n", x);
723 return -EIO;
724 }
725
726 x = abituguru3_wait_for_read(data);
727 if (x != ABIT_UGURU3_SUCCESS) {
728 ABIT_UGURU3_DEBUG("synchronize timeout waiting for read, "
729 "status: 0x%02x\n", x);
730 return -EIO;
731 }
732
733 while ((x = inb(data->addr + ABIT_UGURU3_CMD)) != 0xAC) {
734 timeout--;
735 if (timeout == 0) {
736 ABIT_UGURU3_DEBUG("synchronize timeout cmd does not "
737 "hold 0xAC after synchronize, cmd: 0x%02x\n",
738 x);
739 return -EIO;
740 }
741 msleep(1);
742 }
743 return 0;
744}
745
746/*
747 * Read count bytes from sensor sensor_addr in bank bank_addr and store the
748 * result in buf
749 */
750static int abituguru3_read(struct abituguru3_data *data, u8 bank, u8 offset,
751 u8 count, u8 *buf)
752{
753 int i, x;
754
755 x = abituguru3_synchronize(data);
756 if (x)
757 return x;
758
759 outb(0x1A, data->addr + ABIT_UGURU3_DATA);
760 x = abituguru3_wait_while_busy(data);
761 if (x != ABIT_UGURU3_SUCCESS) {
762 ABIT_UGURU3_DEBUG("read from 0x%02x:0x%02x timed out after "
763 "sending 0x1A, status: 0x%02x\n", (unsigned int)bank,
764 (unsigned int)offset, x);
765 return -EIO;
766 }
767
768 outb(bank, data->addr + ABIT_UGURU3_CMD);
769 x = abituguru3_wait_while_busy(data);
770 if (x != ABIT_UGURU3_SUCCESS) {
771 ABIT_UGURU3_DEBUG("read from 0x%02x:0x%02x timed out after "
772 "sending the bank, status: 0x%02x\n",
773 (unsigned int)bank, (unsigned int)offset, x);
774 return -EIO;
775 }
776
777 outb(offset, data->addr + ABIT_UGURU3_CMD);
778 x = abituguru3_wait_while_busy(data);
779 if (x != ABIT_UGURU3_SUCCESS) {
780 ABIT_UGURU3_DEBUG("read from 0x%02x:0x%02x timed out after "
781 "sending the offset, status: 0x%02x\n",
782 (unsigned int)bank, (unsigned int)offset, x);
783 return -EIO;
784 }
785
786 outb(count, data->addr + ABIT_UGURU3_CMD);
787 x = abituguru3_wait_while_busy(data);
788 if (x != ABIT_UGURU3_SUCCESS) {
789 ABIT_UGURU3_DEBUG("read from 0x%02x:0x%02x timed out after "
790 "sending the count, status: 0x%02x\n",
791 (unsigned int)bank, (unsigned int)offset, x);
792 return -EIO;
793 }
794
795 for (i = 0; i < count; i++) {
796 x = abituguru3_wait_for_read(data);
797 if (x != ABIT_UGURU3_SUCCESS) {
798 ABIT_UGURU3_DEBUG("timeout reading byte %d from "
799 "0x%02x:0x%02x, status: 0x%02x\n", i,
800 (unsigned int)bank, (unsigned int)offset, x);
801 break;
802 }
803 buf[i] = inb(data->addr + ABIT_UGURU3_CMD);
804 }
805 return i;
806}
807
808/*
809 * Sensor settings are stored 1 byte per offset with the bytes
810 * placed add consecutive offsets.
811 */
812static int abituguru3_read_increment_offset(struct abituguru3_data *data,
813 u8 bank, u8 offset, u8 count,
814 u8 *buf, int offset_count)
815{
816 int i, x;
817
818 for (i = 0; i < offset_count; i++) {
819 x = abituguru3_read(data, bank, offset + i, count,
820 buf + i * count);
821 if (x != count) {
822 if (x < 0)
823 return x;
824 return i * count + x;
825 }
826 }
827
828 return i * count;
829}
830
831/*
832 * Following are the sysfs callback functions. These functions expect:
833 * sensor_device_attribute_2->index: index into the data->sensors array
834 * sensor_device_attribute_2->nr: register offset, bitmask or NA.
835 */
836static struct abituguru3_data *abituguru3_update_device(struct device *dev);
837
838static ssize_t show_value(struct device *dev,
839 struct device_attribute *devattr, char *buf)
840{
841 int value;
842 struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
843 struct abituguru3_data *data = abituguru3_update_device(dev);
844 const struct abituguru3_sensor_info *sensor;
845
846 if (!data)
847 return -EIO;
848
849 sensor = &data->sensors[attr->index];
850
851 /* are we reading a setting, or is this a normal read? */
852 if (attr->nr)
853 value = data->settings[sensor->port][attr->nr];
854 else
855 value = data->value[sensor->port];
856
857 /* convert the value */
858 value = (value * sensor->multiplier) / sensor->divisor +
859 sensor->offset;
860
861 /*
862 * alternatively we could update the sensors settings struct for this,
863 * but then its contents would differ from the windows sw ini files
864 */
865 if (sensor->type == ABIT_UGURU3_TEMP_SENSOR)
866 value *= 1000;
867
868 return sprintf(buf, "%d\n", value);
869}
870
871static ssize_t show_alarm(struct device *dev,
872 struct device_attribute *devattr, char *buf)
873{
874 int port;
875 struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
876 struct abituguru3_data *data = abituguru3_update_device(dev);
877
878 if (!data)
879 return -EIO;
880
881 port = data->sensors[attr->index].port;
882
883 /*
884 * See if the alarm bit for this sensor is set and if a bitmask is
885 * given in attr->nr also check if the alarm matches the type of alarm
886 * we're looking for (for volt it can be either low or high). The type
887 * is stored in a few readonly bits in the settings of the sensor.
888 */
889 if ((data->alarms[port / 8] & (0x01 << (port % 8))) &&
890 (!attr->nr || (data->settings[port][0] & attr->nr)))
891 return sprintf(buf, "1\n");
892 else
893 return sprintf(buf, "0\n");
894}
895
896static ssize_t show_mask(struct device *dev,
897 struct device_attribute *devattr, char *buf)
898{
899 struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
900 struct abituguru3_data *data = dev_get_drvdata(dev);
901
902 if (data->settings[data->sensors[attr->index].port][0] & attr->nr)
903 return sprintf(buf, "1\n");
904 else
905 return sprintf(buf, "0\n");
906}
907
908static ssize_t show_label(struct device *dev,
909 struct device_attribute *devattr, char *buf)
910{
911 struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
912 struct abituguru3_data *data = dev_get_drvdata(dev);
913
914 return sprintf(buf, "%s\n", data->sensors[attr->index].name);
915}
916
917static ssize_t show_name(struct device *dev,
918 struct device_attribute *devattr, char *buf)
919{
920 return sprintf(buf, "%s\n", ABIT_UGURU3_NAME);
921}
922
923/* Sysfs attr templates, the real entries are generated automatically. */
924static const
925struct sensor_device_attribute_2 abituguru3_sysfs_templ[3][10] = { {
926 SENSOR_ATTR_2(in%d_input, 0444, show_value, NULL, 0, 0),
927 SENSOR_ATTR_2(in%d_min, 0444, show_value, NULL, 1, 0),
928 SENSOR_ATTR_2(in%d_max, 0444, show_value, NULL, 2, 0),
929 SENSOR_ATTR_2(in%d_min_alarm, 0444, show_alarm, NULL,
930 ABIT_UGURU3_VOLT_LOW_ALARM_FLAG, 0),
931 SENSOR_ATTR_2(in%d_max_alarm, 0444, show_alarm, NULL,
932 ABIT_UGURU3_VOLT_HIGH_ALARM_FLAG, 0),
933 SENSOR_ATTR_2(in%d_beep, 0444, show_mask, NULL,
934 ABIT_UGURU3_BEEP_ENABLE, 0),
935 SENSOR_ATTR_2(in%d_shutdown, 0444, show_mask, NULL,
936 ABIT_UGURU3_SHUTDOWN_ENABLE, 0),
937 SENSOR_ATTR_2(in%d_min_alarm_enable, 0444, show_mask, NULL,
938 ABIT_UGURU3_VOLT_LOW_ALARM_ENABLE, 0),
939 SENSOR_ATTR_2(in%d_max_alarm_enable, 0444, show_mask, NULL,
940 ABIT_UGURU3_VOLT_HIGH_ALARM_ENABLE, 0),
941 SENSOR_ATTR_2(in%d_label, 0444, show_label, NULL, 0, 0)
942 }, {
943 SENSOR_ATTR_2(temp%d_input, 0444, show_value, NULL, 0, 0),
944 SENSOR_ATTR_2(temp%d_max, 0444, show_value, NULL, 1, 0),
945 SENSOR_ATTR_2(temp%d_crit, 0444, show_value, NULL, 2, 0),
946 SENSOR_ATTR_2(temp%d_alarm, 0444, show_alarm, NULL, 0, 0),
947 SENSOR_ATTR_2(temp%d_beep, 0444, show_mask, NULL,
948 ABIT_UGURU3_BEEP_ENABLE, 0),
949 SENSOR_ATTR_2(temp%d_shutdown, 0444, show_mask, NULL,
950 ABIT_UGURU3_SHUTDOWN_ENABLE, 0),
951 SENSOR_ATTR_2(temp%d_alarm_enable, 0444, show_mask, NULL,
952 ABIT_UGURU3_TEMP_HIGH_ALARM_ENABLE, 0),
953 SENSOR_ATTR_2(temp%d_label, 0444, show_label, NULL, 0, 0)
954 }, {
955 SENSOR_ATTR_2(fan%d_input, 0444, show_value, NULL, 0, 0),
956 SENSOR_ATTR_2(fan%d_min, 0444, show_value, NULL, 1, 0),
957 SENSOR_ATTR_2(fan%d_alarm, 0444, show_alarm, NULL, 0, 0),
958 SENSOR_ATTR_2(fan%d_beep, 0444, show_mask, NULL,
959 ABIT_UGURU3_BEEP_ENABLE, 0),
960 SENSOR_ATTR_2(fan%d_shutdown, 0444, show_mask, NULL,
961 ABIT_UGURU3_SHUTDOWN_ENABLE, 0),
962 SENSOR_ATTR_2(fan%d_alarm_enable, 0444, show_mask, NULL,
963 ABIT_UGURU3_FAN_LOW_ALARM_ENABLE, 0),
964 SENSOR_ATTR_2(fan%d_label, 0444, show_label, NULL, 0, 0)
965} };
966
967static struct sensor_device_attribute_2 abituguru3_sysfs_attr[] = {
968 SENSOR_ATTR_2(name, 0444, show_name, NULL, 0, 0),
969};
970
971static int abituguru3_probe(struct platform_device *pdev)
972{
973 const int no_sysfs_attr[3] = { 10, 8, 7 };
974 int sensor_index[3] = { 0, 1, 1 };
975 struct abituguru3_data *data;
976 int i, j, type, used, sysfs_names_free, sysfs_attr_i, res = -ENODEV;
977 char *sysfs_filename;
978 u8 buf[2];
979 u16 id;
980
981 data = devm_kzalloc(&pdev->dev, sizeof(struct abituguru3_data),
982 GFP_KERNEL);
983 if (!data)
984 return -ENOMEM;
985
986 data->addr = platform_get_resource(pdev, IORESOURCE_IO, 0)->start;
987 mutex_init(&data->update_lock);
988 platform_set_drvdata(pdev, data);
989
990 /* Read the motherboard ID */
991 i = abituguru3_read(data, ABIT_UGURU3_MISC_BANK, ABIT_UGURU3_BOARD_ID,
992 2, buf);
993 if (i != 2)
994 goto abituguru3_probe_error;
995
996 /* Completely read the uGuru to see if one really is there */
997 if (!abituguru3_update_device(&pdev->dev))
998 goto abituguru3_probe_error;
999
1000 /* lookup the ID in our motherboard table */
1001 id = ((u16)buf[0] << 8) | (u16)buf[1];
1002 for (i = 0; abituguru3_motherboards[i].id; i++)
1003 if (abituguru3_motherboards[i].id == id)
1004 break;
1005 if (!abituguru3_motherboards[i].id) {
1006 pr_err("error unknown motherboard ID: %04X. %s\n",
1007 (unsigned int)id, report_this);
1008 goto abituguru3_probe_error;
1009 }
1010 data->sensors = abituguru3_motherboards[i].sensors;
1011
1012 pr_info("found Abit uGuru3, motherboard ID: %04X\n", (unsigned int)id);
1013
1014 /* Fill the sysfs attr array */
1015 sysfs_attr_i = 0;
1016 sysfs_filename = data->sysfs_names;
1017 sysfs_names_free = ABIT_UGURU3_SYSFS_NAMES_LENGTH;
1018 for (i = 0; data->sensors[i].name; i++) {
1019 /* Fail safe check, this should never happen! */
1020 if (i >= ABIT_UGURU3_MAX_NO_SENSORS) {
1021 pr_err("Fatal error motherboard has more sensors then ABIT_UGURU3_MAX_NO_SENSORS. %s %s\n",
1022 never_happen, report_this);
1023 res = -ENAMETOOLONG;
1024 goto abituguru3_probe_error;
1025 }
1026 type = data->sensors[i].type;
1027 for (j = 0; j < no_sysfs_attr[type]; j++) {
1028 used = snprintf(sysfs_filename, sysfs_names_free,
1029 abituguru3_sysfs_templ[type][j].dev_attr.attr.
1030 name, sensor_index[type]) + 1;
1031 data->sysfs_attr[sysfs_attr_i] =
1032 abituguru3_sysfs_templ[type][j];
1033 data->sysfs_attr[sysfs_attr_i].dev_attr.attr.name =
1034 sysfs_filename;
1035 data->sysfs_attr[sysfs_attr_i].index = i;
1036 sysfs_filename += used;
1037 sysfs_names_free -= used;
1038 sysfs_attr_i++;
1039 }
1040 sensor_index[type]++;
1041 }
1042 /* Fail safe check, this should never happen! */
1043 if (sysfs_names_free < 0) {
1044 pr_err("Fatal error ran out of space for sysfs attr names. %s %s\n",
1045 never_happen, report_this);
1046 res = -ENAMETOOLONG;
1047 goto abituguru3_probe_error;
1048 }
1049
1050 /* Register sysfs hooks */
1051 for (i = 0; i < sysfs_attr_i; i++)
1052 if (device_create_file(&pdev->dev,
1053 &data->sysfs_attr[i].dev_attr))
1054 goto abituguru3_probe_error;
1055 for (i = 0; i < ARRAY_SIZE(abituguru3_sysfs_attr); i++)
1056 if (device_create_file(&pdev->dev,
1057 &abituguru3_sysfs_attr[i].dev_attr))
1058 goto abituguru3_probe_error;
1059
1060 data->hwmon_dev = hwmon_device_register(&pdev->dev);
1061 if (IS_ERR(data->hwmon_dev)) {
1062 res = PTR_ERR(data->hwmon_dev);
1063 goto abituguru3_probe_error;
1064 }
1065
1066 return 0; /* success */
1067
1068abituguru3_probe_error:
1069 for (i = 0; data->sysfs_attr[i].dev_attr.attr.name; i++)
1070 device_remove_file(&pdev->dev, &data->sysfs_attr[i].dev_attr);
1071 for (i = 0; i < ARRAY_SIZE(abituguru3_sysfs_attr); i++)
1072 device_remove_file(&pdev->dev,
1073 &abituguru3_sysfs_attr[i].dev_attr);
1074 return res;
1075}
1076
1077static int abituguru3_remove(struct platform_device *pdev)
1078{
1079 int i;
1080 struct abituguru3_data *data = platform_get_drvdata(pdev);
1081
1082 hwmon_device_unregister(data->hwmon_dev);
1083 for (i = 0; data->sysfs_attr[i].dev_attr.attr.name; i++)
1084 device_remove_file(&pdev->dev, &data->sysfs_attr[i].dev_attr);
1085 for (i = 0; i < ARRAY_SIZE(abituguru3_sysfs_attr); i++)
1086 device_remove_file(&pdev->dev,
1087 &abituguru3_sysfs_attr[i].dev_attr);
1088 return 0;
1089}
1090
1091static struct abituguru3_data *abituguru3_update_device(struct device *dev)
1092{
1093 int i;
1094 struct abituguru3_data *data = dev_get_drvdata(dev);
1095
1096 mutex_lock(&data->update_lock);
1097 if (!data->valid || time_after(jiffies, data->last_updated + HZ)) {
1098 /* Clear data->valid while updating */
1099 data->valid = 0;
1100 /* Read alarms */
1101 if (abituguru3_read_increment_offset(data,
1102 ABIT_UGURU3_SETTINGS_BANK,
1103 ABIT_UGURU3_ALARMS_START,
1104 1, data->alarms, 48/8) != (48/8))
1105 goto LEAVE_UPDATE;
1106 /* Read in and temp sensors (3 byte settings / sensor) */
1107 for (i = 0; i < 32; i++) {
1108 if (abituguru3_read(data, ABIT_UGURU3_SENSORS_BANK,
1109 ABIT_UGURU3_VALUES_START + i,
1110 1, &data->value[i]) != 1)
1111 goto LEAVE_UPDATE;
1112 if (abituguru3_read_increment_offset(data,
1113 ABIT_UGURU3_SETTINGS_BANK,
1114 ABIT_UGURU3_SETTINGS_START + i * 3,
1115 1,
1116 data->settings[i], 3) != 3)
1117 goto LEAVE_UPDATE;
1118 }
1119 /* Read temp sensors (2 byte settings / sensor) */
1120 for (i = 0; i < 16; i++) {
1121 if (abituguru3_read(data, ABIT_UGURU3_SENSORS_BANK,
1122 ABIT_UGURU3_VALUES_START + 32 + i,
1123 1, &data->value[32 + i]) != 1)
1124 goto LEAVE_UPDATE;
1125 if (abituguru3_read_increment_offset(data,
1126 ABIT_UGURU3_SETTINGS_BANK,
1127 ABIT_UGURU3_SETTINGS_START + 32 * 3 +
1128 i * 2, 1,
1129 data->settings[32 + i], 2) != 2)
1130 goto LEAVE_UPDATE;
1131 }
1132 data->last_updated = jiffies;
1133 data->valid = 1;
1134 }
1135LEAVE_UPDATE:
1136 mutex_unlock(&data->update_lock);
1137 if (data->valid)
1138 return data;
1139 else
1140 return NULL;
1141}
1142
1143#ifdef CONFIG_PM_SLEEP
1144static int abituguru3_suspend(struct device *dev)
1145{
1146 struct abituguru3_data *data = dev_get_drvdata(dev);
1147 /*
1148 * make sure all communications with the uguru3 are done and no new
1149 * ones are started
1150 */
1151 mutex_lock(&data->update_lock);
1152 return 0;
1153}
1154
1155static int abituguru3_resume(struct device *dev)
1156{
1157 struct abituguru3_data *data = dev_get_drvdata(dev);
1158 mutex_unlock(&data->update_lock);
1159 return 0;
1160}
1161
1162static SIMPLE_DEV_PM_OPS(abituguru3_pm, abituguru3_suspend, abituguru3_resume);
1163#define ABIT_UGURU3_PM (&abituguru3_pm)
1164#else
1165#define ABIT_UGURU3_PM NULL
1166#endif /* CONFIG_PM */
1167
1168static struct platform_driver abituguru3_driver = {
1169 .driver = {
1170 .name = ABIT_UGURU3_NAME,
1171 .pm = ABIT_UGURU3_PM
1172 },
1173 .probe = abituguru3_probe,
1174 .remove = abituguru3_remove,
1175};
1176
1177static int __init abituguru3_dmi_detect(void)
1178{
1179 const char *board_vendor, *board_name;
1180 int i, err = (force) ? 1 : -ENODEV;
1181 const char *const *dmi_name;
1182 size_t sublen;
1183
1184 board_vendor = dmi_get_system_info(DMI_BOARD_VENDOR);
1185 if (!board_vendor || strcmp(board_vendor, "http://www.abit.com.tw/"))
1186 return err;
1187
1188 board_name = dmi_get_system_info(DMI_BOARD_NAME);
1189 if (!board_name)
1190 return err;
1191
1192 /*
1193 * At the moment, we don't care about the part of the vendor
1194 * DMI string contained in brackets. Truncate the string at
1195 * the first occurrence of a bracket. Trim any trailing space
1196 * from the substring.
1197 */
1198 sublen = strcspn(board_name, "(");
1199 while (sublen > 0 && board_name[sublen - 1] == ' ')
1200 sublen--;
1201
1202 for (i = 0; abituguru3_motherboards[i].id; i++) {
1203 dmi_name = abituguru3_motherboards[i].dmi_name;
1204 for ( ; *dmi_name; dmi_name++) {
1205 if (strlen(*dmi_name) != sublen)
1206 continue;
1207 if (!strncasecmp(board_name, *dmi_name, sublen))
1208 return 0;
1209 }
1210 }
1211
1212 /* No match found */
1213 return 1;
1214}
1215
1216/*
1217 * FIXME: Manual detection should die eventually; we need to collect stable
1218 * DMI model names first before we can rely entirely on CONFIG_DMI.
1219 */
1220
1221static int __init abituguru3_detect(void)
1222{
1223 /*
1224 * See if there is an uguru3 there. An idle uGuru3 will hold 0x00 or
1225 * 0x08 at DATA and 0xAC at CMD. Sometimes the uGuru3 will hold 0x05
1226 * or 0x55 at CMD instead, why is unknown.
1227 */
1228 u8 data_val = inb_p(ABIT_UGURU3_BASE + ABIT_UGURU3_DATA);
1229 u8 cmd_val = inb_p(ABIT_UGURU3_BASE + ABIT_UGURU3_CMD);
1230 if (((data_val == 0x00) || (data_val == 0x08)) &&
1231 ((cmd_val == 0xAC) || (cmd_val == 0x05) ||
1232 (cmd_val == 0x55)))
1233 return 0;
1234
1235 ABIT_UGURU3_DEBUG("no Abit uGuru3 found, data = 0x%02X, cmd = "
1236 "0x%02X\n", (unsigned int)data_val, (unsigned int)cmd_val);
1237
1238 if (force) {
1239 pr_info("Assuming Abit uGuru3 is present because of \"force\" parameter\n");
1240 return 0;
1241 }
1242
1243 /* No uGuru3 found */
1244 return -ENODEV;
1245}
1246
1247static struct platform_device *abituguru3_pdev;
1248
1249static int __init abituguru3_init(void)
1250{
1251 struct resource res = { .flags = IORESOURCE_IO };
1252 int err;
1253
1254 /* Attempt DMI detection first */
1255 err = abituguru3_dmi_detect();
1256 if (err < 0)
1257 return err;
1258
1259 /*
1260 * Fall back to manual detection if there was no exact
1261 * board name match, or force was specified.
1262 */
1263 if (err > 0) {
1264 err = abituguru3_detect();
1265 if (err)
1266 return err;
1267
1268 pr_warn("this motherboard was not detected using DMI. "
1269 "Please send the output of \"dmidecode\" to the abituguru3 maintainer (see MAINTAINERS)\n");
1270 }
1271
1272 err = platform_driver_register(&abituguru3_driver);
1273 if (err)
1274 goto exit;
1275
1276 abituguru3_pdev = platform_device_alloc(ABIT_UGURU3_NAME,
1277 ABIT_UGURU3_BASE);
1278 if (!abituguru3_pdev) {
1279 pr_err("Device allocation failed\n");
1280 err = -ENOMEM;
1281 goto exit_driver_unregister;
1282 }
1283
1284 res.start = ABIT_UGURU3_BASE;
1285 res.end = ABIT_UGURU3_BASE + ABIT_UGURU3_REGION_LENGTH - 1;
1286 res.name = ABIT_UGURU3_NAME;
1287
1288 err = platform_device_add_resources(abituguru3_pdev, &res, 1);
1289 if (err) {
1290 pr_err("Device resource addition failed (%d)\n", err);
1291 goto exit_device_put;
1292 }
1293
1294 err = platform_device_add(abituguru3_pdev);
1295 if (err) {
1296 pr_err("Device addition failed (%d)\n", err);
1297 goto exit_device_put;
1298 }
1299
1300 return 0;
1301
1302exit_device_put:
1303 platform_device_put(abituguru3_pdev);
1304exit_driver_unregister:
1305 platform_driver_unregister(&abituguru3_driver);
1306exit:
1307 return err;
1308}
1309
1310static void __exit abituguru3_exit(void)
1311{
1312 platform_device_unregister(abituguru3_pdev);
1313 platform_driver_unregister(&abituguru3_driver);
1314}
1315
1316MODULE_AUTHOR("Hans de Goede <hdegoede@redhat.com>");
1317MODULE_DESCRIPTION("Abit uGuru3 Sensor device");
1318MODULE_LICENSE("GPL");
1319
1320module_init(abituguru3_init);
1321module_exit(abituguru3_exit);
1322