xref: /openbmc/linux/drivers/hwmon/abituguru3.c (revision 545e4006)
1 /*
2     abituguru3.c Copyright (c) 2006 Hans de Goede <j.w.r.degoede@hhs.nl>
3 
4     This program is free software; you can redistribute it and/or modify
5     it under the terms of the GNU General Public License as published by
6     the Free Software Foundation; either version 2 of the License, or
7     (at your option) any later version.
8 
9     This program is distributed in the hope that it will be useful,
10     but WITHOUT ANY WARRANTY; without even the implied warranty of
11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12     GNU General Public License for more details.
13 
14     You should have received a copy of the GNU General Public License
15     along with this program; if not, write to the Free Software
16     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
17 */
18 /*
19     This driver supports the sensor part of revision 3 of the custom Abit uGuru
20     chip found on newer Abit uGuru motherboards. Note: because of lack of specs
21     only reading the sensors and their settings is supported.
22 */
23 #include <linux/module.h>
24 #include <linux/init.h>
25 #include <linux/slab.h>
26 #include <linux/jiffies.h>
27 #include <linux/mutex.h>
28 #include <linux/err.h>
29 #include <linux/delay.h>
30 #include <linux/platform_device.h>
31 #include <linux/hwmon.h>
32 #include <linux/hwmon-sysfs.h>
33 #include <linux/dmi.h>
34 #include <asm/io.h>
35 
36 /* uGuru3 bank addresses */
37 #define ABIT_UGURU3_SETTINGS_BANK		0x01
38 #define ABIT_UGURU3_SENSORS_BANK		0x08
39 #define ABIT_UGURU3_MISC_BANK			0x09
40 #define ABIT_UGURU3_ALARMS_START		0x1E
41 #define ABIT_UGURU3_SETTINGS_START		0x24
42 #define ABIT_UGURU3_VALUES_START		0x80
43 #define ABIT_UGURU3_BOARD_ID			0x0A
44 /* uGuru3 sensor bank flags */			     /* Alarm if: */
45 #define ABIT_UGURU3_TEMP_HIGH_ALARM_ENABLE	0x01 /*  temp over warn */
46 #define ABIT_UGURU3_VOLT_HIGH_ALARM_ENABLE	0x02 /*  volt over max */
47 #define ABIT_UGURU3_VOLT_LOW_ALARM_ENABLE	0x04 /*  volt under min */
48 #define ABIT_UGURU3_TEMP_HIGH_ALARM_FLAG	0x10 /* temp is over warn */
49 #define ABIT_UGURU3_VOLT_HIGH_ALARM_FLAG	0x20 /* volt is over max */
50 #define ABIT_UGURU3_VOLT_LOW_ALARM_FLAG		0x40 /* volt is under min */
51 #define ABIT_UGURU3_FAN_LOW_ALARM_ENABLE	0x01 /*   fan under min */
52 #define ABIT_UGURU3_BEEP_ENABLE			0x08 /* beep if alarm */
53 #define ABIT_UGURU3_SHUTDOWN_ENABLE		0x80 /* shutdown if alarm */
54 /* sensor types */
55 #define ABIT_UGURU3_IN_SENSOR			0
56 #define ABIT_UGURU3_TEMP_SENSOR			1
57 #define ABIT_UGURU3_FAN_SENSOR			2
58 
59 /* Timeouts / Retries, if these turn out to need a lot of fiddling we could
60    convert them to params. Determined by trial and error. I assume this is
61    cpu-speed independent, since the ISA-bus and not the CPU should be the
62    bottleneck. */
63 #define ABIT_UGURU3_WAIT_TIMEOUT		250
64 /* Normally the 0xAC at the end of synchronize() is reported after the
65    first read, but sometimes not and we need to poll */
66 #define ABIT_UGURU3_SYNCHRONIZE_TIMEOUT		5
67 /* utility macros */
68 #define ABIT_UGURU3_NAME			"abituguru3"
69 #define ABIT_UGURU3_DEBUG(format, arg...)	\
70 	if (verbose)				\
71 		printk(KERN_DEBUG ABIT_UGURU3_NAME ": "	format , ## arg)
72 
73 /* Macros to help calculate the sysfs_names array length */
74 #define ABIT_UGURU3_MAX_NO_SENSORS 26
75 /* sum of strlen +1 of: in??_input\0, in??_{min,max}\0, in??_{min,max}_alarm\0,
76    in??_{min,max}_alarm_enable\0, in??_beep\0, in??_shutdown\0, in??_label\0 */
77 #define ABIT_UGURU3_IN_NAMES_LENGTH (11 + 2 * 9 + 2 * 15 + 2 * 22 + 10 + 14 + 11)
78 /* sum of strlen +1 of: temp??_input\0, temp??_max\0, temp??_crit\0,
79    temp??_alarm\0, temp??_alarm_enable\0, temp??_beep\0, temp??_shutdown\0,
80    temp??_label\0 */
81 #define ABIT_UGURU3_TEMP_NAMES_LENGTH (13 + 11 + 12 + 13 + 20 + 12 + 16 + 13)
82 /* sum of strlen +1 of: fan??_input\0, fan??_min\0, fan??_alarm\0,
83    fan??_alarm_enable\0, fan??_beep\0, fan??_shutdown\0, fan??_label\0 */
84 #define ABIT_UGURU3_FAN_NAMES_LENGTH (12 + 10 + 12 + 19 + 11 + 15 + 12)
85 /* Worst case scenario 16 in sensors (longest names_length) and the rest
86    temp sensors (second longest names_length). */
87 #define ABIT_UGURU3_SYSFS_NAMES_LENGTH (16 * ABIT_UGURU3_IN_NAMES_LENGTH + \
88 	(ABIT_UGURU3_MAX_NO_SENSORS - 16) * ABIT_UGURU3_TEMP_NAMES_LENGTH)
89 
90 /* All the macros below are named identical to the openguru2 program
91    reverse engineered by Louis Kruger, hence the names might not be 100%
92    logical. I could come up with better names, but I prefer keeping the names
93    identical so that this driver can be compared with his work more easily. */
94 /* Two i/o-ports are used by uGuru */
95 #define ABIT_UGURU3_BASE			0x00E0
96 #define ABIT_UGURU3_CMD				0x00
97 #define ABIT_UGURU3_DATA			0x04
98 #define ABIT_UGURU3_REGION_LENGTH		5
99 /* The wait_xxx functions return this on success and the last contents
100    of the DATA register (0-255) on failure. */
101 #define ABIT_UGURU3_SUCCESS			-1
102 /* uGuru status flags */
103 #define ABIT_UGURU3_STATUS_READY_FOR_READ	0x01
104 #define ABIT_UGURU3_STATUS_BUSY			0x02
105 
106 
107 /* Structures */
108 struct abituguru3_sensor_info {
109 	const char* name;
110 	int port;
111 	int type;
112 	int multiplier;
113 	int divisor;
114 	int offset;
115 };
116 
117 struct abituguru3_motherboard_info {
118 	u16 id;
119 	const char *name;
120 	/* + 1 -> end of sensors indicated by a sensor with name == NULL */
121 	struct abituguru3_sensor_info sensors[ABIT_UGURU3_MAX_NO_SENSORS + 1];
122 };
123 
124 /* For the Abit uGuru, we need to keep some data in memory.
125    The structure is dynamically allocated, at the same time when a new
126    abituguru3 device is allocated. */
127 struct abituguru3_data {
128 	struct device *hwmon_dev;	/* hwmon registered device */
129 	struct mutex update_lock;	/* protect access to data and uGuru */
130 	unsigned short addr;		/* uguru base address */
131 	char valid;			/* !=0 if following fields are valid */
132 	unsigned long last_updated;	/* In jiffies */
133 
134 	/* For convenience the sysfs attr and their names are generated
135 	   automatically. We have max 10 entries per sensor (for in sensors) */
136 	struct sensor_device_attribute_2 sysfs_attr[ABIT_UGURU3_MAX_NO_SENSORS
137 		* 10];
138 
139 	/* Buffer to store the dynamically generated sysfs names */
140 	char sysfs_names[ABIT_UGURU3_SYSFS_NAMES_LENGTH];
141 
142 	/* Pointer to the sensors info for the detected motherboard */
143 	const struct abituguru3_sensor_info *sensors;
144 
145 	/* The abituguru3 supports upto 48 sensors, and thus has registers
146 	   sets for 48 sensors, for convienence reasons / simplicity of the
147 	   code we always read and store all registers for all 48 sensors */
148 
149 	/* Alarms for all 48 sensors (1 bit per sensor) */
150 	u8 alarms[48/8];
151 
152 	/* Value of all 48 sensors */
153 	u8 value[48];
154 
155 	/* Settings of all 48 sensors, note in and temp sensors (the first 32
156 	   sensors) have 3 bytes of settings, while fans only have 2 bytes,
157 	   for convenience we use 3 bytes for all sensors */
158 	u8 settings[48][3];
159 };
160 
161 
162 /* Constants */
163 static const struct abituguru3_motherboard_info abituguru3_motherboards[] = {
164 	{ 0x000C, "unknown", {
165 		{ "CPU Core",		 0, 0, 10, 1, 0 },
166 		{ "DDR",		 1, 0, 10, 1, 0 },
167 		{ "DDR VTT",		 2, 0, 10, 1, 0 },
168 		{ "CPU VTT 1.2V",	 3, 0, 10, 1, 0 },
169 		{ "MCH & PCIE 1.5V",	 4, 0, 10, 1, 0 },
170 		{ "MCH 2.5V",		 5, 0, 20, 1, 0 },
171 		{ "ICH 1.05V",		 6, 0, 10, 1, 0 },
172 		{ "ATX +12V (24-Pin)",	 7, 0, 60, 1, 0 },
173 		{ "ATX +12V (4-pin)",	 8, 0, 60, 1, 0 },
174 		{ "ATX +5V",		 9, 0, 30, 1, 0 },
175 		{ "+3.3V",		10, 0, 20, 1, 0 },
176 		{ "5VSB",		11, 0, 30, 1, 0 },
177 		{ "CPU",		24, 1, 1, 1, 0 },
178 		{ "System ",		25, 1, 1, 1, 0 },
179 		{ "PWM",		26, 1, 1, 1, 0 },
180 		{ "CPU Fan",		32, 2, 60, 1, 0 },
181 		{ "NB Fan",		33, 2, 60, 1, 0 },
182 		{ "SYS FAN",		34, 2, 60, 1, 0 },
183 		{ "AUX1 Fan",		35, 2, 60, 1, 0 },
184 		{ NULL, 0, 0, 0, 0, 0 } }
185 	},
186 	{ 0x000D, "Abit AW8", {
187 		{ "CPU Core",		 0, 0, 10, 1, 0 },
188 		{ "DDR",		 1, 0, 10, 1, 0 },
189 		{ "DDR VTT",		 2, 0, 10, 1, 0 },
190 		{ "CPU VTT 1.2V",	 3, 0, 10, 1, 0 },
191 		{ "MCH & PCIE 1.5V",	 4, 0, 10, 1, 0 },
192 		{ "MCH 2.5V",		 5, 0, 20, 1, 0 },
193 		{ "ICH 1.05V",		 6, 0, 10, 1, 0 },
194 		{ "ATX +12V (24-Pin)",	 7, 0, 60, 1, 0 },
195 		{ "ATX +12V (4-pin)",	 8, 0, 60, 1, 0 },
196 		{ "ATX +5V",		 9, 0, 30, 1, 0 },
197 		{ "+3.3V",		10, 0, 20, 1, 0 },
198 		{ "5VSB",		11, 0, 30, 1, 0 },
199 		{ "CPU",		24, 1, 1, 1, 0 },
200 		{ "System ",		25, 1, 1, 1, 0 },
201 		{ "PWM1",		26, 1, 1, 1, 0 },
202 		{ "PWM2",		27, 1, 1, 1, 0 },
203 		{ "PWM3",		28, 1, 1, 1, 0 },
204 		{ "PWM4",		29, 1, 1, 1, 0 },
205 		{ "CPU Fan",		32, 2, 60, 1, 0 },
206 		{ "NB Fan",		33, 2, 60, 1, 0 },
207 		{ "SYS Fan",		34, 2, 60, 1, 0 },
208 		{ "AUX1 Fan",		35, 2, 60, 1, 0 },
209 		{ "AUX2 Fan",		36, 2, 60, 1, 0 },
210 		{ "AUX3 Fan",		37, 2, 60, 1, 0 },
211 		{ "AUX4 Fan",		38, 2, 60, 1, 0 },
212 		{ "AUX5 Fan",		39, 2, 60, 1, 0 },
213 		{ NULL, 0, 0, 0, 0, 0 } }
214 	},
215 	{ 0x000E, "AL-8", {
216 		{ "CPU Core",		 0, 0, 10, 1, 0 },
217 		{ "DDR",		 1, 0, 10, 1, 0 },
218 		{ "DDR VTT",		 2, 0, 10, 1, 0 },
219 		{ "CPU VTT 1.2V",	 3, 0, 10, 1, 0 },
220 		{ "MCH & PCIE 1.5V",	 4, 0, 10, 1, 0 },
221 		{ "MCH 2.5V",		 5, 0, 20, 1, 0 },
222 		{ "ICH 1.05V",		 6, 0, 10, 1, 0 },
223 		{ "ATX +12V (24-Pin)",	 7, 0, 60, 1, 0 },
224 		{ "ATX +12V (4-pin)",	 8, 0, 60, 1, 0 },
225 		{ "ATX +5V",		 9, 0, 30, 1, 0 },
226 		{ "+3.3V",		10, 0, 20, 1, 0 },
227 		{ "5VSB",		11, 0, 30, 1, 0 },
228 		{ "CPU",		24, 1, 1, 1, 0 },
229 		{ "System ",		25, 1, 1, 1, 0 },
230 		{ "PWM",		26, 1, 1, 1, 0 },
231 		{ "CPU Fan",		32, 2, 60, 1, 0 },
232 		{ "NB Fan",		33, 2, 60, 1, 0 },
233 		{ "SYS Fan",		34, 2, 60, 1, 0 },
234 		{ NULL, 0, 0, 0, 0, 0 } }
235 	},
236 	{ 0x000F, "unknown", {
237 		{ "CPU Core",		 0, 0, 10, 1, 0 },
238 		{ "DDR",		 1, 0, 10, 1, 0 },
239 		{ "DDR VTT",		 2, 0, 10, 1, 0 },
240 		{ "CPU VTT 1.2V",	 3, 0, 10, 1, 0 },
241 		{ "MCH & PCIE 1.5V",	 4, 0, 10, 1, 0 },
242 		{ "MCH 2.5V",		 5, 0, 20, 1, 0 },
243 		{ "ICH 1.05V",		 6, 0, 10, 1, 0 },
244 		{ "ATX +12V (24-Pin)",	 7, 0, 60, 1, 0 },
245 		{ "ATX +12V (4-pin)",	 8, 0, 60, 1, 0 },
246 		{ "ATX +5V",		 9, 0, 30, 1, 0 },
247 		{ "+3.3V",		10, 0, 20, 1, 0 },
248 		{ "5VSB",		11, 0, 30, 1, 0 },
249 		{ "CPU",		24, 1, 1, 1, 0 },
250 		{ "System ",		25, 1, 1, 1, 0 },
251 		{ "PWM",		26, 1, 1, 1, 0 },
252 		{ "CPU Fan",		32, 2, 60, 1, 0 },
253 		{ "NB Fan",		33, 2, 60, 1, 0 },
254 		{ "SYS Fan",		34, 2, 60, 1, 0 },
255 		{ NULL, 0, 0, 0, 0, 0 } }
256 	},
257 	{ 0x0010, "Abit NI8 SLI GR", {
258 		{ "CPU Core",		 0, 0, 10, 1, 0 },
259 		{ "DDR",		 1, 0, 10, 1, 0 },
260 		{ "DDR VTT",		 2, 0, 10, 1, 0 },
261 		{ "CPU VTT 1.2V",	 3, 0, 10, 1, 0 },
262 		{ "NB 1.4V",		 4, 0, 10, 1, 0 },
263 		{ "SB 1.5V",		 6, 0, 10, 1, 0 },
264 		{ "ATX +12V (24-Pin)",	 7, 0, 60, 1, 0 },
265 		{ "ATX +12V (4-pin)",	 8, 0, 60, 1, 0 },
266 		{ "ATX +5V",		 9, 0, 30, 1, 0 },
267 		{ "+3.3V",		10, 0, 20, 1, 0 },
268 		{ "5VSB",		11, 0, 30, 1, 0 },
269 		{ "CPU",		24, 1, 1, 1, 0 },
270 		{ "SYS",		25, 1, 1, 1, 0 },
271 		{ "PWM",		26, 1, 1, 1, 0 },
272 		{ "CPU Fan",		32, 2, 60, 1, 0 },
273 		{ "NB Fan",		33, 2, 60, 1, 0 },
274 		{ "SYS Fan",		34, 2, 60, 1, 0 },
275 		{ "AUX1 Fan",		35, 2, 60, 1, 0 },
276 		{ "OTES1 Fan",		36, 2, 60, 1, 0 },
277 		{ NULL, 0, 0, 0, 0, 0 } }
278 	},
279 	{ 0x0011, "Abit AT8 32X", {
280 		{ "CPU Core",		 0, 0, 10, 1, 0 },
281 		{ "DDR",		 1, 0, 20, 1, 0 },
282 		{ "DDR VTT",		 2, 0, 10, 1, 0 },
283 		{ "CPU VDDA 2.5V",	 6, 0, 20, 1, 0 },
284 		{ "NB 1.8V",		 4, 0, 10, 1, 0 },
285 		{ "NB 1.8V Dual",	 5, 0, 10, 1, 0 },
286 		{ "HTV 1.2",		 3, 0, 10, 1, 0 },
287 		{ "PCIE 1.2V",		12, 0, 10, 1, 0 },
288 		{ "NB 1.2V",		13, 0, 10, 1, 0 },
289 		{ "ATX +12V (24-Pin)",	 7, 0, 60, 1, 0 },
290 		{ "ATX +12V (4-pin)",	 8, 0, 60, 1, 0 },
291 		{ "ATX +5V",		 9, 0, 30, 1, 0 },
292 		{ "+3.3V",		10, 0, 20, 1, 0 },
293 		{ "5VSB",		11, 0, 30, 1, 0 },
294 		{ "CPU",		24, 1, 1, 1, 0 },
295 		{ "NB",			25, 1, 1, 1, 0 },
296 		{ "System",		26, 1, 1, 1, 0 },
297 		{ "PWM",		27, 1, 1, 1, 0 },
298 		{ "CPU Fan",		32, 2, 60, 1, 0 },
299 		{ "NB Fan",		33, 2, 60, 1, 0 },
300 		{ "SYS Fan",		34, 2, 60, 1, 0 },
301 		{ "AUX1 Fan",		35, 2, 60, 1, 0 },
302 		{ "AUX2 Fan",		36, 2, 60, 1, 0 },
303 		{ NULL, 0, 0, 0, 0, 0 } }
304 	},
305 	{ 0x0012, "Abit AN8 32X", {
306 		{ "CPU Core",		 0, 0, 10, 1, 0 },
307 		{ "DDR",		 1, 0, 20, 1, 0 },
308 		{ "DDR VTT",		 2, 0, 10, 1, 0 },
309 		{ "HyperTransport",	 3, 0, 10, 1, 0 },
310 		{ "CPU VDDA 2.5V",	 5, 0, 20, 1, 0 },
311 		{ "NB",			 4, 0, 10, 1, 0 },
312 		{ "SB",			 6, 0, 10, 1, 0 },
313 		{ "ATX +12V (24-Pin)",	 7, 0, 60, 1, 0 },
314 		{ "ATX +12V (4-pin)",	 8, 0, 60, 1, 0 },
315 		{ "ATX +5V",		 9, 0, 30, 1, 0 },
316 		{ "+3.3V",		10, 0, 20, 1, 0 },
317 		{ "5VSB",		11, 0, 30, 1, 0 },
318 		{ "CPU",		24, 1, 1, 1, 0 },
319 		{ "SYS",		25, 1, 1, 1, 0 },
320 		{ "PWM",		26, 1, 1, 1, 0 },
321 		{ "CPU Fan",		32, 2, 60, 1, 0 },
322 		{ "NB Fan",		33, 2, 60, 1, 0 },
323 		{ "SYS Fan",		34, 2, 60, 1, 0 },
324 		{ "AUX1 Fan",		36, 2, 60, 1, 0 },
325 		{ NULL, 0, 0, 0, 0, 0 } }
326 	},
327 	{ 0x0013, "Abit AW8D", {
328 		{ "CPU Core",		 0, 0, 10, 1, 0 },
329 		{ "DDR",		 1, 0, 10, 1, 0 },
330 		{ "DDR VTT",		 2, 0, 10, 1, 0 },
331 		{ "CPU VTT 1.2V",	 3, 0, 10, 1, 0 },
332 		{ "MCH & PCIE 1.5V",	 4, 0, 10, 1, 0 },
333 		{ "MCH 2.5V",		 5, 0, 20, 1, 0 },
334 		{ "ICH 1.05V",		 6, 0, 10, 1, 0 },
335 		{ "ATX +12V (24-Pin)",	 7, 0, 60, 1, 0 },
336 		{ "ATX +12V (4-pin)",	 8, 0, 60, 1, 0 },
337 		{ "ATX +5V",		 9, 0, 30, 1, 0 },
338 		{ "+3.3V",		10, 0, 20, 1, 0 },
339 		{ "5VSB",		11, 0, 30, 1, 0 },
340 		{ "CPU",		24, 1, 1, 1, 0 },
341 		{ "System ",		25, 1, 1, 1, 0 },
342 		{ "PWM1",		26, 1, 1, 1, 0 },
343 		{ "PWM2",		27, 1, 1, 1, 0 },
344 		{ "PWM3",		28, 1, 1, 1, 0 },
345 		{ "PWM4",		29, 1, 1, 1, 0 },
346 		{ "CPU Fan",		32, 2, 60, 1, 0 },
347 		{ "NB Fan",		33, 2, 60, 1, 0 },
348 		{ "SYS Fan",		34, 2, 60, 1, 0 },
349 		{ "AUX1 Fan",		35, 2, 60, 1, 0 },
350 		{ "AUX2 Fan",		36, 2, 60, 1, 0 },
351 		{ "AUX3 Fan",		37, 2, 60, 1, 0 },
352 		{ "AUX4 Fan",		38, 2, 60, 1, 0 },
353 		{ "AUX5 Fan",		39, 2, 60, 1, 0 },
354 		{ NULL, 0, 0, 0, 0, 0 } }
355 	},
356 	{ 0x0014, "Abit AB9 Pro", {
357 		{ "CPU Core",		 0, 0, 10, 1, 0 },
358 		{ "DDR",		 1, 0, 10, 1, 0 },
359 		{ "DDR VTT",		 2, 0, 10, 1, 0 },
360 		{ "CPU VTT 1.2V",	 3, 0, 10, 1, 0 },
361 		{ "MCH & PCIE 1.5V",	 4, 0, 10, 1, 0 },
362 		{ "MCH 2.5V",		 5, 0, 20, 1, 0 },
363 		{ "ICH 1.05V",		 6, 0, 10, 1, 0 },
364 		{ "ATX +12V (24-Pin)",	 7, 0, 60, 1, 0 },
365 		{ "ATX +12V (4-pin)",	 8, 0, 60, 1, 0 },
366 		{ "ATX +5V",		 9, 0, 30, 1, 0 },
367 		{ "+3.3V",		10, 0, 20, 1, 0 },
368 		{ "5VSB",		11, 0, 30, 1, 0 },
369 		{ "CPU",		24, 1, 1, 1, 0 },
370 		{ "System ",		25, 1, 1, 1, 0 },
371 		{ "PWM",		26, 1, 1, 1, 0 },
372 		{ "CPU Fan",		32, 2, 60, 1, 0 },
373 		{ "NB Fan",		33, 2, 60, 1, 0 },
374 		{ "SYS Fan",		34, 2, 60, 1, 0 },
375 		{ NULL, 0, 0, 0, 0, 0 } }
376 	},
377 	{ 0x0015, "unknown", {
378 		{ "CPU Core",		 0, 0, 10, 1, 0 },
379 		{ "DDR",		 1, 0, 20, 1, 0 },
380 		{ "DDR VTT",		 2, 0, 10, 1, 0 },
381 		{ "HyperTransport",	 3, 0, 10, 1, 0 },
382 		{ "CPU VDDA 2.5V",	 5, 0, 20, 1, 0 },
383 		{ "NB",			 4, 0, 10, 1, 0 },
384 		{ "SB",			 6, 0, 10, 1, 0 },
385 		{ "ATX +12V (24-Pin)",	 7, 0, 60, 1, 0 },
386 		{ "ATX +12V (4-pin)",	 8, 0, 60, 1, 0 },
387 		{ "ATX +5V",		 9, 0, 30, 1, 0 },
388 		{ "+3.3V",		10, 0, 20, 1, 0 },
389 		{ "5VSB",		11, 0, 30, 1, 0 },
390 		{ "CPU",		24, 1, 1, 1, 0 },
391 		{ "SYS",		25, 1, 1, 1, 0 },
392 		{ "PWM",		26, 1, 1, 1, 0 },
393 		{ "CPU Fan",		32, 2, 60, 1, 0 },
394 		{ "NB Fan",		33, 2, 60, 1, 0 },
395 		{ "SYS Fan",		34, 2, 60, 1, 0 },
396 		{ "AUX1 Fan",		33, 2, 60, 1, 0 },
397 		{ "AUX2 Fan",		35, 2, 60, 1, 0 },
398 		{ "AUX3 Fan",		36, 2, 60, 1, 0 },
399 		{ NULL, 0, 0, 0, 0, 0 } }
400 	},
401 	{ 0x0016, "AW9D-MAX", {
402 		{ "CPU Core",		 0, 0, 10, 1, 0 },
403 		{ "DDR2",		 1, 0, 20, 1, 0 },
404 		{ "DDR2 VTT",		 2, 0, 10, 1, 0 },
405 		{ "CPU VTT 1.2V",	 3, 0, 10, 1, 0 },
406 		{ "MCH & PCIE 1.5V",	 4, 0, 10, 1, 0 },
407 		{ "MCH 2.5V",		 5, 0, 20, 1, 0 },
408 		{ "ICH 1.05V",		 6, 0, 10, 1, 0 },
409 		{ "ATX +12V (24-Pin)",	 7, 0, 60, 1, 0 },
410 		{ "ATX +12V (4-pin)",	 8, 0, 60, 1, 0 },
411 		{ "ATX +5V",		 9, 0, 30, 1, 0 },
412 		{ "+3.3V",		10, 0, 20, 1, 0 },
413 		{ "5VSB",		11, 0, 30, 1, 0 },
414 		{ "CPU",		24, 1, 1, 1, 0 },
415 		{ "System ",		25, 1, 1, 1, 0 },
416 		{ "PWM1",		26, 1, 1, 1, 0 },
417 		{ "PWM2",		27, 1, 1, 1, 0 },
418 		{ "PWM3",		28, 1, 1, 1, 0 },
419 		{ "PWM4",		29, 1, 1, 1, 0 },
420 		{ "CPU Fan",		32, 2, 60, 1, 0 },
421 		{ "NB Fan",		33, 2, 60, 1, 0 },
422 		{ "SYS Fan",		34, 2, 60, 1, 0 },
423 		{ "AUX1 Fan",		35, 2, 60, 1, 0 },
424 		{ "AUX2 Fan",		36, 2, 60, 1, 0 },
425 		{ "AUX3 Fan",		37, 2, 60, 1, 0 },
426 		{ "OTES1 Fan",		38, 2, 60, 1, 0 },
427 		{ NULL, 0, 0, 0, 0, 0 } }
428 	},
429 	{ 0x0017, "unknown", {
430 		{ "CPU Core",		 0, 0, 10, 1, 0 },
431 		{ "DDR2",		 1, 0, 20, 1, 0 },
432 		{ "DDR2 VTT",		 2, 0, 10, 1, 0 },
433 		{ "HyperTransport",	 3, 0, 10, 1, 0 },
434 		{ "CPU VDDA 2.5V",	 6, 0, 20, 1, 0 },
435 		{ "NB 1.8V",		 4, 0, 10, 1, 0 },
436 		{ "NB 1.2V ",		13, 0, 10, 1, 0 },
437 		{ "SB 1.2V",		 5, 0, 10, 1, 0 },
438 		{ "PCIE 1.2V",		12, 0, 10, 1, 0 },
439 		{ "ATX +12V (24-Pin)",	 7, 0, 60, 1, 0 },
440 		{ "ATX +12V (4-pin)",	 8, 0, 60, 1, 0 },
441 		{ "ATX +5V",		 9, 0, 30, 1, 0 },
442 		{ "ATX +3.3V",		10, 0, 20, 1, 0 },
443 		{ "ATX 5VSB",		11, 0, 30, 1, 0 },
444 		{ "CPU",		24, 1, 1, 1, 0 },
445 		{ "System ",		26, 1, 1, 1, 0 },
446 		{ "PWM",		27, 1, 1, 1, 0 },
447 		{ "CPU FAN",		32, 2, 60, 1, 0 },
448 		{ "SYS FAN",		34, 2, 60, 1, 0 },
449 		{ "AUX1 FAN",		35, 2, 60, 1, 0 },
450 		{ "AUX2 FAN",		36, 2, 60, 1, 0 },
451 		{ "AUX3 FAN",		37, 2, 60, 1, 0 },
452 		{ NULL, 0, 0, 0, 0, 0 } }
453 	},
454 	{ 0x0018, "unknown", {
455 		{ "CPU Core",		 0, 0, 10, 1, 0 },
456 		{ "DDR2",		 1, 0, 20, 1, 0 },
457 		{ "DDR2 VTT",		 2, 0, 10, 1, 0 },
458 		{ "CPU VTT",		 3, 0, 10, 1, 0 },
459 		{ "MCH 1.25V",		 4, 0, 10, 1, 0 },
460 		{ "ICHIO 1.5V",		 5, 0, 10, 1, 0 },
461 		{ "ICH 1.05V",		 6, 0, 10, 1, 0 },
462 		{ "ATX +12V (24-Pin)",	 7, 0, 60, 1, 0 },
463 		{ "ATX +12V (4-pin)",	 8, 0, 60, 1, 0 },
464 		{ "ATX +5V",		 9, 0, 30, 1, 0 },
465 		{ "+3.3V",		10, 0, 20, 1, 0 },
466 		{ "5VSB",		11, 0, 30, 1, 0 },
467 		{ "CPU",		24, 1, 1, 1, 0 },
468 		{ "System ",		25, 1, 1, 1, 0 },
469 		{ "PWM Phase1",		26, 1, 1, 1, 0 },
470 		{ "PWM Phase2",		27, 1, 1, 1, 0 },
471 		{ "PWM Phase3",		28, 1, 1, 1, 0 },
472 		{ "PWM Phase4",		29, 1, 1, 1, 0 },
473 		{ "PWM Phase5",		30, 1, 1, 1, 0 },
474 		{ "CPU Fan",		32, 2, 60, 1, 0 },
475 		{ "SYS Fan",		34, 2, 60, 1, 0 },
476 		{ "AUX1 Fan",		33, 2, 60, 1, 0 },
477 		{ "AUX2 Fan",		35, 2, 60, 1, 0 },
478 		{ "AUX3 Fan",		36, 2, 60, 1, 0 },
479 		{ NULL, 0, 0, 0, 0, 0 } }
480 	},
481 	{ 0x0019, "unknown", {
482 		{ "CPU Core",		 7, 0, 10, 1, 0 },
483 		{ "DDR2",		13, 0, 20, 1, 0 },
484 		{ "DDR2 VTT",		14, 0, 10, 1, 0 },
485 		{ "CPU VTT",		 3, 0, 20, 1, 0 },
486 		{ "NB 1.2V ",		 4, 0, 10, 1, 0 },
487 		{ "SB 1.5V",		 6, 0, 10, 1, 0 },
488 		{ "HyperTransport",	 5, 0, 10, 1, 0 },
489 		{ "ATX +12V (24-Pin)",	12, 0, 60, 1, 0 },
490 		{ "ATX +12V (4-pin)",	 8, 0, 60, 1, 0 },
491 		{ "ATX +5V",		 9, 0, 30, 1, 0 },
492 		{ "ATX +3.3V",		10, 0, 20, 1, 0 },
493 		{ "ATX 5VSB",		11, 0, 30, 1, 0 },
494 		{ "CPU",		24, 1, 1, 1, 0 },
495 		{ "System ",		25, 1, 1, 1, 0 },
496 		{ "PWM Phase1",		26, 1, 1, 1, 0 },
497 		{ "PWM Phase2",		27, 1, 1, 1, 0 },
498 		{ "PWM Phase3",		28, 1, 1, 1, 0 },
499 		{ "PWM Phase4",		29, 1, 1, 1, 0 },
500 		{ "PWM Phase5",		30, 1, 1, 1, 0 },
501 		{ "CPU FAN",		32, 2, 60, 1, 0 },
502 		{ "SYS FAN",		34, 2, 60, 1, 0 },
503 		{ "AUX1 FAN",		33, 2, 60, 1, 0 },
504 		{ "AUX2 FAN",		35, 2, 60, 1, 0 },
505 		{ "AUX3 FAN",		36, 2, 60, 1, 0 },
506 		{ NULL, 0, 0, 0, 0, 0 } }
507 	},
508 	{ 0x001A, "Abit IP35 Pro", {
509 		{ "CPU Core",		 0, 0, 10, 1, 0 },
510 		{ "DDR2",		 1, 0, 20, 1, 0 },
511 		{ "DDR2 VTT",		 2, 0, 10, 1, 0 },
512 		{ "CPU VTT 1.2V",	 3, 0, 10, 1, 0 },
513 		{ "MCH 1.25V",		 4, 0, 10, 1, 0 },
514 		{ "ICHIO 1.5V",		 5, 0, 10, 1, 0 },
515 		{ "ICH 1.05V",		 6, 0, 10, 1, 0 },
516 		{ "ATX +12V (24-Pin)",	 7, 0, 60, 1, 0 },
517 		{ "ATX +12V (8-pin)",	 8, 0, 60, 1, 0 },
518 		{ "ATX +5V",		 9, 0, 30, 1, 0 },
519 		{ "+3.3V",		10, 0, 20, 1, 0 },
520 		{ "5VSB",		11, 0, 30, 1, 0 },
521 		{ "CPU",		24, 1, 1, 1, 0 },
522 		{ "System ",		25, 1, 1, 1, 0 },
523 		{ "PWM ",		26, 1, 1, 1, 0 },
524 		{ "PWM Phase2",		27, 1, 1, 1, 0 },
525 		{ "PWM Phase3",		28, 1, 1, 1, 0 },
526 		{ "PWM Phase4",		29, 1, 1, 1, 0 },
527 		{ "PWM Phase5",		30, 1, 1, 1, 0 },
528 		{ "CPU Fan",		32, 2, 60, 1, 0 },
529 		{ "SYS Fan",		34, 2, 60, 1, 0 },
530 		{ "AUX1 Fan",		33, 2, 60, 1, 0 },
531 		{ "AUX2 Fan",		35, 2, 60, 1, 0 },
532 		{ "AUX3 Fan",		36, 2, 60, 1, 0 },
533 		{ "AUX4 Fan",		37, 2, 60, 1, 0 },
534 		{ NULL, 0, 0, 0, 0, 0 } }
535 	},
536 	{ 0x001B, "unknown", {
537 		{ "CPU Core",		 0, 0, 10, 1, 0 },
538 		{ "DDR3",		 1, 0, 20, 1, 0 },
539 		{ "DDR3 VTT",		 2, 0, 10, 1, 0 },
540 		{ "CPU VTT",		 3, 0, 10, 1, 0 },
541 		{ "MCH 1.25V",		 4, 0, 10, 1, 0 },
542 		{ "ICHIO 1.5V",		 5, 0, 10, 1, 0 },
543 		{ "ICH 1.05V",		 6, 0, 10, 1, 0 },
544 		{ "ATX +12V (24-Pin)",	 7, 0, 60, 1, 0 },
545 		{ "ATX +12V (8-pin)",	 8, 0, 60, 1, 0 },
546 		{ "ATX +5V",		 9, 0, 30, 1, 0 },
547 		{ "+3.3V",		10, 0, 20, 1, 0 },
548 		{ "5VSB",		11, 0, 30, 1, 0 },
549 		{ "CPU",		24, 1, 1, 1, 0 },
550 		{ "System",		25, 1, 1, 1, 0 },
551 		{ "PWM Phase1",		26, 1, 1, 1, 0 },
552 		{ "PWM Phase2",		27, 1, 1, 1, 0 },
553 		{ "PWM Phase3",		28, 1, 1, 1, 0 },
554 		{ "PWM Phase4",		29, 1, 1, 1, 0 },
555 		{ "PWM Phase5",		30, 1, 1, 1, 0 },
556 		{ "CPU Fan",		32, 2, 60, 1, 0 },
557 		{ "SYS Fan",		34, 2, 60, 1, 0 },
558 		{ "AUX1 Fan",		33, 2, 60, 1, 0 },
559 		{ "AUX2 Fan",		35, 2, 60, 1, 0 },
560 		{ "AUX3 Fan",		36, 2, 60, 1, 0 },
561 		{ NULL, 0, 0, 0, 0, 0 } }
562 	},
563 	{ 0x001C, "unknown", {
564 		{ "CPU Core",		 0, 0, 10, 1, 0 },
565 		{ "DDR2",		 1, 0, 20, 1, 0 },
566 		{ "DDR2 VTT",		 2, 0, 10, 1, 0 },
567 		{ "CPU VTT",		 3, 0, 10, 1, 0 },
568 		{ "MCH 1.25V",		 4, 0, 10, 1, 0 },
569 		{ "ICHIO 1.5V",		 5, 0, 10, 1, 0 },
570 		{ "ICH 1.05V",		 6, 0, 10, 1, 0 },
571 		{ "ATX +12V (24-Pin)",	 7, 0, 60, 1, 0 },
572 		{ "ATX +12V (8-pin)",	 8, 0, 60, 1, 0 },
573 		{ "ATX +5V",		 9, 0, 30, 1, 0 },
574 		{ "+3.3V",		10, 0, 20, 1, 0 },
575 		{ "5VSB",		11, 0, 30, 1, 0 },
576 		{ "CPU",		24, 1, 1, 1, 0 },
577 		{ "System",		25, 1, 1, 1, 0 },
578 		{ "PWM Phase1",		26, 1, 1, 1, 0 },
579 		{ "PWM Phase2",		27, 1, 1, 1, 0 },
580 		{ "PWM Phase3",		28, 1, 1, 1, 0 },
581 		{ "PWM Phase4",		29, 1, 1, 1, 0 },
582 		{ "PWM Phase5",		30, 1, 1, 1, 0 },
583 		{ "CPU Fan",		32, 2, 60, 1, 0 },
584 		{ "SYS Fan",		34, 2, 60, 1, 0 },
585 		{ "AUX1 Fan",		33, 2, 60, 1, 0 },
586 		{ "AUX2 Fan",		35, 2, 60, 1, 0 },
587 		{ "AUX3 Fan",		36, 2, 60, 1, 0 },
588 		{ NULL, 0, 0, 0, 0, 0 } }
589 	},
590 	{ 0x0000, NULL, { { NULL, 0, 0, 0, 0, 0 } } }
591 };
592 
593 
594 /* Insmod parameters */
595 static int force;
596 module_param(force, bool, 0);
597 MODULE_PARM_DESC(force, "Set to one to force detection.");
598 /* Default verbose is 1, since this driver is still in the testing phase */
599 static int verbose = 1;
600 module_param(verbose, bool, 0644);
601 MODULE_PARM_DESC(verbose, "Enable/disable verbose error reporting");
602 
603 
604 /* wait while the uguru is busy (usually after a write) */
605 static int abituguru3_wait_while_busy(struct abituguru3_data *data)
606 {
607 	u8 x;
608 	int timeout = ABIT_UGURU3_WAIT_TIMEOUT;
609 
610 	while ((x = inb_p(data->addr + ABIT_UGURU3_DATA)) &
611 			ABIT_UGURU3_STATUS_BUSY) {
612 		timeout--;
613 		if (timeout == 0)
614 			return x;
615 		/* sleep a bit before our last try, to give the uGuru3 one
616 		   last chance to respond. */
617 		if (timeout == 1)
618 			msleep(1);
619 	}
620 	return ABIT_UGURU3_SUCCESS;
621 }
622 
623 /* wait till uguru is ready to be read */
624 static int abituguru3_wait_for_read(struct abituguru3_data *data)
625 {
626 	u8 x;
627 	int timeout = ABIT_UGURU3_WAIT_TIMEOUT;
628 
629 	while (!((x = inb_p(data->addr + ABIT_UGURU3_DATA)) &
630 			ABIT_UGURU3_STATUS_READY_FOR_READ)) {
631 		timeout--;
632 		if (timeout == 0)
633 			return x;
634 		/* sleep a bit before our last try, to give the uGuru3 one
635 		   last chance to respond. */
636 		if (timeout == 1)
637 			msleep(1);
638 	}
639 	return ABIT_UGURU3_SUCCESS;
640 }
641 
642 /* This synchronizes us with the uGuru3's protocol state machine, this
643    must be done before each command. */
644 static int abituguru3_synchronize(struct abituguru3_data *data)
645 {
646 	int x, timeout = ABIT_UGURU3_SYNCHRONIZE_TIMEOUT;
647 
648 	if ((x = abituguru3_wait_while_busy(data)) != ABIT_UGURU3_SUCCESS) {
649 		ABIT_UGURU3_DEBUG("synchronize timeout during initial busy "
650 			"wait, status: 0x%02x\n", x);
651 		return -EIO;
652 	}
653 
654 	outb(0x20, data->addr + ABIT_UGURU3_DATA);
655 	if ((x = abituguru3_wait_while_busy(data)) != ABIT_UGURU3_SUCCESS) {
656 		ABIT_UGURU3_DEBUG("synchronize timeout after sending 0x20, "
657 			"status: 0x%02x\n", x);
658 		return -EIO;
659 	}
660 
661 	outb(0x10, data->addr + ABIT_UGURU3_CMD);
662 	if ((x = abituguru3_wait_while_busy(data)) != ABIT_UGURU3_SUCCESS) {
663 		ABIT_UGURU3_DEBUG("synchronize timeout after sending 0x10, "
664 			"status: 0x%02x\n", x);
665 		return -EIO;
666 	}
667 
668 	outb(0x00, data->addr + ABIT_UGURU3_CMD);
669 	if ((x = abituguru3_wait_while_busy(data)) != ABIT_UGURU3_SUCCESS) {
670 		ABIT_UGURU3_DEBUG("synchronize timeout after sending 0x00, "
671 			"status: 0x%02x\n", x);
672 		return -EIO;
673 	}
674 
675 	if ((x = abituguru3_wait_for_read(data)) != ABIT_UGURU3_SUCCESS) {
676 		ABIT_UGURU3_DEBUG("synchronize timeout waiting for read, "
677 			"status: 0x%02x\n", x);
678 		return -EIO;
679 	}
680 
681 	while ((x = inb(data->addr + ABIT_UGURU3_CMD)) != 0xAC) {
682 		timeout--;
683 		if (timeout == 0) {
684 			ABIT_UGURU3_DEBUG("synchronize timeout cmd does not "
685 				"hold 0xAC after synchronize, cmd: 0x%02x\n",
686 				x);
687 			return -EIO;
688 		}
689 		msleep(1);
690 	}
691 	return 0;
692 }
693 
694 /* Read count bytes from sensor sensor_addr in bank bank_addr and store the
695    result in buf */
696 static int abituguru3_read(struct abituguru3_data *data, u8 bank, u8 offset,
697 	u8 count, u8 *buf)
698 {
699 	int i, x;
700 
701 	if ((x = abituguru3_synchronize(data)))
702 		return x;
703 
704 	outb(0x1A, data->addr + ABIT_UGURU3_DATA);
705 	if ((x = abituguru3_wait_while_busy(data)) != ABIT_UGURU3_SUCCESS) {
706 		ABIT_UGURU3_DEBUG("read from 0x%02x:0x%02x timed out after "
707 			"sending 0x1A, status: 0x%02x\n", (unsigned int)bank,
708 			(unsigned int)offset, x);
709 		return -EIO;
710 	}
711 
712 	outb(bank, data->addr + ABIT_UGURU3_CMD);
713 	if ((x = abituguru3_wait_while_busy(data)) != ABIT_UGURU3_SUCCESS) {
714 		ABIT_UGURU3_DEBUG("read from 0x%02x:0x%02x timed out after "
715 			"sending the bank, status: 0x%02x\n",
716 			(unsigned int)bank, (unsigned int)offset, x);
717 		return -EIO;
718 	}
719 
720 	outb(offset, data->addr + ABIT_UGURU3_CMD);
721 	if ((x = abituguru3_wait_while_busy(data)) != ABIT_UGURU3_SUCCESS) {
722 		ABIT_UGURU3_DEBUG("read from 0x%02x:0x%02x timed out after "
723 			"sending the offset, status: 0x%02x\n",
724 			(unsigned int)bank, (unsigned int)offset, x);
725 		return -EIO;
726 	}
727 
728 	outb(count, data->addr + ABIT_UGURU3_CMD);
729 	if ((x = abituguru3_wait_while_busy(data)) != ABIT_UGURU3_SUCCESS) {
730 		ABIT_UGURU3_DEBUG("read from 0x%02x:0x%02x timed out after "
731 			"sending the count, status: 0x%02x\n",
732 			(unsigned int)bank, (unsigned int)offset, x);
733 		return -EIO;
734 	}
735 
736 	for (i = 0; i < count; i++) {
737 		if ((x = abituguru3_wait_for_read(data)) !=
738 				ABIT_UGURU3_SUCCESS) {
739 			ABIT_UGURU3_DEBUG("timeout reading byte %d from "
740 				"0x%02x:0x%02x, status: 0x%02x\n", i,
741 				(unsigned int)bank, (unsigned int)offset, x);
742 			break;
743 		}
744 		buf[i] = inb(data->addr + ABIT_UGURU3_CMD);
745 	}
746 	return i;
747 }
748 
749 /* Sensor settings are stored 1 byte per offset with the bytes
750    placed add consecutive offsets. */
751 static int abituguru3_read_increment_offset(struct abituguru3_data *data,
752 					    u8 bank, u8 offset, u8 count,
753 					    u8 *buf, int offset_count)
754 {
755 	int i, x;
756 
757 	for (i = 0; i < offset_count; i++)
758 		if ((x = abituguru3_read(data, bank, offset + i, count,
759 				buf + i * count)) != count)
760 			return i * count + (i && (x < 0)) ? 0 : x;
761 
762 	return i * count;
763 }
764 
765 /* Following are the sysfs callback functions. These functions expect:
766    sensor_device_attribute_2->index:   index into the data->sensors array
767    sensor_device_attribute_2->nr:      register offset, bitmask or NA. */
768 static struct abituguru3_data *abituguru3_update_device(struct device *dev);
769 
770 static ssize_t show_value(struct device *dev,
771 	struct device_attribute *devattr, char *buf)
772 {
773 	int value;
774 	struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
775 	struct abituguru3_data *data = abituguru3_update_device(dev);
776 	const struct abituguru3_sensor_info *sensor;
777 
778 	if (!data)
779 		return -EIO;
780 
781 	sensor = &data->sensors[attr->index];
782 
783 	/* are we reading a setting, or is this a normal read? */
784 	if (attr->nr)
785 		value = data->settings[sensor->port][attr->nr];
786 	else
787 		value = data->value[sensor->port];
788 
789 	/* convert the value */
790 	value = (value * sensor->multiplier) / sensor->divisor +
791 		sensor->offset;
792 
793 	/* alternatively we could update the sensors settings struct for this,
794 	   but then its contents would differ from the windows sw ini files */
795 	if (sensor->type == ABIT_UGURU3_TEMP_SENSOR)
796 		value *= 1000;
797 
798 	return sprintf(buf, "%d\n", value);
799 }
800 
801 static ssize_t show_alarm(struct device *dev,
802 	struct device_attribute *devattr, char *buf)
803 {
804 	int port;
805 	struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
806 	struct abituguru3_data *data = abituguru3_update_device(dev);
807 
808 	if (!data)
809 		return -EIO;
810 
811 	port = data->sensors[attr->index].port;
812 
813 	/* See if the alarm bit for this sensor is set and if a bitmask is
814 	   given in attr->nr also check if the alarm matches the type of alarm
815 	   we're looking for (for volt it can be either low or high). The type
816 	   is stored in a few readonly bits in the settings of the sensor. */
817 	if ((data->alarms[port / 8] & (0x01 << (port % 8))) &&
818 			(!attr->nr || (data->settings[port][0] & attr->nr)))
819 		return sprintf(buf, "1\n");
820 	else
821 		return sprintf(buf, "0\n");
822 }
823 
824 static ssize_t show_mask(struct device *dev,
825 	struct device_attribute *devattr, char *buf)
826 {
827 	struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
828 	struct abituguru3_data *data = dev_get_drvdata(dev);
829 
830 	if (data->settings[data->sensors[attr->index].port][0] & attr->nr)
831 		return sprintf(buf, "1\n");
832 	else
833 		return sprintf(buf, "0\n");
834 }
835 
836 static ssize_t show_label(struct device *dev,
837 	struct device_attribute *devattr, char *buf)
838 {
839 	struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
840 	struct abituguru3_data *data = dev_get_drvdata(dev);
841 
842 	return sprintf(buf, "%s\n", data->sensors[attr->index].name);
843 }
844 
845 static ssize_t show_name(struct device *dev,
846 	struct device_attribute *devattr, char *buf)
847 {
848 	return sprintf(buf, "%s\n", ABIT_UGURU3_NAME);
849 }
850 
851 /* Sysfs attr templates, the real entries are generated automatically. */
852 static const
853 struct sensor_device_attribute_2 abituguru3_sysfs_templ[3][10] = { {
854 	SENSOR_ATTR_2(in%d_input, 0444, show_value, NULL, 0, 0),
855 	SENSOR_ATTR_2(in%d_min, 0444, show_value, NULL, 1, 0),
856 	SENSOR_ATTR_2(in%d_max, 0444, show_value, NULL, 2, 0),
857 	SENSOR_ATTR_2(in%d_min_alarm, 0444, show_alarm, NULL,
858 		ABIT_UGURU3_VOLT_LOW_ALARM_FLAG, 0),
859 	SENSOR_ATTR_2(in%d_max_alarm, 0444, show_alarm, NULL,
860 		ABIT_UGURU3_VOLT_HIGH_ALARM_FLAG, 0),
861 	SENSOR_ATTR_2(in%d_beep, 0444, show_mask, NULL,
862 		ABIT_UGURU3_BEEP_ENABLE, 0),
863 	SENSOR_ATTR_2(in%d_shutdown, 0444, show_mask, NULL,
864 		ABIT_UGURU3_SHUTDOWN_ENABLE, 0),
865 	SENSOR_ATTR_2(in%d_min_alarm_enable, 0444, show_mask, NULL,
866 		ABIT_UGURU3_VOLT_LOW_ALARM_ENABLE, 0),
867 	SENSOR_ATTR_2(in%d_max_alarm_enable, 0444, show_mask, NULL,
868 		ABIT_UGURU3_VOLT_HIGH_ALARM_ENABLE, 0),
869 	SENSOR_ATTR_2(in%d_label, 0444, show_label, NULL, 0, 0)
870 	}, {
871 	SENSOR_ATTR_2(temp%d_input, 0444, show_value, NULL, 0, 0),
872 	SENSOR_ATTR_2(temp%d_max, 0444, show_value, NULL, 1, 0),
873 	SENSOR_ATTR_2(temp%d_crit, 0444, show_value, NULL, 2, 0),
874 	SENSOR_ATTR_2(temp%d_alarm, 0444, show_alarm, NULL, 0, 0),
875 	SENSOR_ATTR_2(temp%d_beep, 0444, show_mask, NULL,
876 		ABIT_UGURU3_BEEP_ENABLE, 0),
877 	SENSOR_ATTR_2(temp%d_shutdown, 0444, show_mask, NULL,
878 		ABIT_UGURU3_SHUTDOWN_ENABLE, 0),
879 	SENSOR_ATTR_2(temp%d_alarm_enable, 0444, show_mask, NULL,
880 		ABIT_UGURU3_TEMP_HIGH_ALARM_ENABLE, 0),
881 	SENSOR_ATTR_2(temp%d_label, 0444, show_label, NULL, 0, 0)
882 	}, {
883 	SENSOR_ATTR_2(fan%d_input, 0444, show_value, NULL, 0, 0),
884 	SENSOR_ATTR_2(fan%d_min, 0444, show_value, NULL, 1, 0),
885 	SENSOR_ATTR_2(fan%d_alarm, 0444, show_alarm, NULL, 0, 0),
886 	SENSOR_ATTR_2(fan%d_beep, 0444, show_mask, NULL,
887 		ABIT_UGURU3_BEEP_ENABLE, 0),
888 	SENSOR_ATTR_2(fan%d_shutdown, 0444, show_mask, NULL,
889 		ABIT_UGURU3_SHUTDOWN_ENABLE, 0),
890 	SENSOR_ATTR_2(fan%d_alarm_enable, 0444, show_mask, NULL,
891 		ABIT_UGURU3_FAN_LOW_ALARM_ENABLE, 0),
892 	SENSOR_ATTR_2(fan%d_label, 0444, show_label, NULL, 0, 0)
893 } };
894 
895 static struct sensor_device_attribute_2 abituguru3_sysfs_attr[] = {
896 	SENSOR_ATTR_2(name, 0444, show_name, NULL, 0, 0),
897 };
898 
899 static int __devinit abituguru3_probe(struct platform_device *pdev)
900 {
901 	const int no_sysfs_attr[3] = { 10, 8, 7 };
902 	int sensor_index[3] = { 0, 1, 1 };
903 	struct abituguru3_data *data;
904 	int i, j, type, used, sysfs_names_free, sysfs_attr_i, res = -ENODEV;
905 	char *sysfs_filename;
906 	u8 buf[2];
907 	u16 id;
908 
909 	if (!(data = kzalloc(sizeof(struct abituguru3_data), GFP_KERNEL)))
910 		return -ENOMEM;
911 
912 	data->addr = platform_get_resource(pdev, IORESOURCE_IO, 0)->start;
913 	mutex_init(&data->update_lock);
914 	platform_set_drvdata(pdev, data);
915 
916 	/* Read the motherboard ID */
917 	if ((i = abituguru3_read(data, ABIT_UGURU3_MISC_BANK,
918 			ABIT_UGURU3_BOARD_ID, 2, buf)) != 2) {
919 		goto abituguru3_probe_error;
920 	}
921 
922 	/* Completely read the uGuru to see if one really is there */
923 	if (!abituguru3_update_device(&pdev->dev))
924 		goto abituguru3_probe_error;
925 
926 	/* lookup the ID in our motherboard table */
927 	id = ((u16)buf[0] << 8) | (u16)buf[1];
928 	for (i = 0; abituguru3_motherboards[i].id; i++)
929 		if (abituguru3_motherboards[i].id == id)
930 			break;
931 	if (!abituguru3_motherboards[i].id) {
932 		printk(KERN_ERR ABIT_UGURU3_NAME ": error unknown motherboard "
933 			"ID: %04X. Please report this to the abituguru3 "
934 			"maintainer (see MAINTAINERS)\n", (unsigned int)id);
935 		goto abituguru3_probe_error;
936 	}
937 	data->sensors = abituguru3_motherboards[i].sensors;
938 	printk(KERN_INFO ABIT_UGURU3_NAME ": found Abit uGuru3, motherboard "
939 		"ID: %04X (%s)\n", (unsigned int)id,
940 		abituguru3_motherboards[i].name);
941 
942 	/* Fill the sysfs attr array */
943 	sysfs_attr_i = 0;
944 	sysfs_filename = data->sysfs_names;
945 	sysfs_names_free = ABIT_UGURU3_SYSFS_NAMES_LENGTH;
946 	for (i = 0; data->sensors[i].name; i++) {
947 		/* Fail safe check, this should never happen! */
948 		if (i >= ABIT_UGURU3_MAX_NO_SENSORS) {
949 			printk(KERN_ERR ABIT_UGURU3_NAME
950 				": Fatal error motherboard has more sensors "
951 				"then ABIT_UGURU3_MAX_NO_SENSORS. This should "
952 				"never happen please report to the abituguru3 "
953 				"maintainer (see MAINTAINERS)\n");
954 			res = -ENAMETOOLONG;
955 			goto abituguru3_probe_error;
956 		}
957 		type = data->sensors[i].type;
958 		for (j = 0; j < no_sysfs_attr[type]; j++) {
959 			used = snprintf(sysfs_filename, sysfs_names_free,
960 				abituguru3_sysfs_templ[type][j].dev_attr.attr.
961 				name, sensor_index[type]) + 1;
962 			data->sysfs_attr[sysfs_attr_i] =
963 				abituguru3_sysfs_templ[type][j];
964 			data->sysfs_attr[sysfs_attr_i].dev_attr.attr.name =
965 				sysfs_filename;
966 			data->sysfs_attr[sysfs_attr_i].index = i;
967 			sysfs_filename += used;
968 			sysfs_names_free -= used;
969 			sysfs_attr_i++;
970 		}
971 		sensor_index[type]++;
972 	}
973 	/* Fail safe check, this should never happen! */
974 	if (sysfs_names_free < 0) {
975 		printk(KERN_ERR ABIT_UGURU3_NAME
976 			": Fatal error ran out of space for sysfs attr names. "
977 			"This should never happen please report to the "
978 			"abituguru3 maintainer (see MAINTAINERS)\n");
979 		res = -ENAMETOOLONG;
980 		goto abituguru3_probe_error;
981 	}
982 
983 	/* Register sysfs hooks */
984 	for (i = 0; i < sysfs_attr_i; i++)
985 		if (device_create_file(&pdev->dev,
986 				&data->sysfs_attr[i].dev_attr))
987 			goto abituguru3_probe_error;
988 	for (i = 0; i < ARRAY_SIZE(abituguru3_sysfs_attr); i++)
989 		if (device_create_file(&pdev->dev,
990 				&abituguru3_sysfs_attr[i].dev_attr))
991 			goto abituguru3_probe_error;
992 
993 	data->hwmon_dev = hwmon_device_register(&pdev->dev);
994 	if (IS_ERR(data->hwmon_dev)) {
995 		res = PTR_ERR(data->hwmon_dev);
996 		goto abituguru3_probe_error;
997 	}
998 
999 	return 0; /* success */
1000 
1001 abituguru3_probe_error:
1002 	for (i = 0; data->sysfs_attr[i].dev_attr.attr.name; i++)
1003 		device_remove_file(&pdev->dev, &data->sysfs_attr[i].dev_attr);
1004 	for (i = 0; i < ARRAY_SIZE(abituguru3_sysfs_attr); i++)
1005 		device_remove_file(&pdev->dev,
1006 			&abituguru3_sysfs_attr[i].dev_attr);
1007 	kfree(data);
1008 	return res;
1009 }
1010 
1011 static int __devexit abituguru3_remove(struct platform_device *pdev)
1012 {
1013 	int i;
1014 	struct abituguru3_data *data = platform_get_drvdata(pdev);
1015 
1016 	platform_set_drvdata(pdev, NULL);
1017 	hwmon_device_unregister(data->hwmon_dev);
1018 	for (i = 0; data->sysfs_attr[i].dev_attr.attr.name; i++)
1019 		device_remove_file(&pdev->dev, &data->sysfs_attr[i].dev_attr);
1020 	for (i = 0; i < ARRAY_SIZE(abituguru3_sysfs_attr); i++)
1021 		device_remove_file(&pdev->dev,
1022 			&abituguru3_sysfs_attr[i].dev_attr);
1023 	kfree(data);
1024 
1025 	return 0;
1026 }
1027 
1028 static struct abituguru3_data *abituguru3_update_device(struct device *dev)
1029 {
1030 	int i;
1031 	struct abituguru3_data *data = dev_get_drvdata(dev);
1032 
1033 	mutex_lock(&data->update_lock);
1034 	if (!data->valid || time_after(jiffies, data->last_updated + HZ)) {
1035 		/* Clear data->valid while updating */
1036 		data->valid = 0;
1037 		/* Read alarms */
1038 		if (abituguru3_read_increment_offset(data,
1039 				ABIT_UGURU3_SETTINGS_BANK,
1040 				ABIT_UGURU3_ALARMS_START,
1041 				1, data->alarms, 48/8) != (48/8))
1042 			goto LEAVE_UPDATE;
1043 		/* Read in and temp sensors (3 byte settings / sensor) */
1044 		for (i = 0; i < 32; i++) {
1045 			if (abituguru3_read(data, ABIT_UGURU3_SENSORS_BANK,
1046 					ABIT_UGURU3_VALUES_START + i,
1047 					1, &data->value[i]) != 1)
1048 				goto LEAVE_UPDATE;
1049 			if (abituguru3_read_increment_offset(data,
1050 					ABIT_UGURU3_SETTINGS_BANK,
1051 					ABIT_UGURU3_SETTINGS_START + i * 3,
1052 					1,
1053 					data->settings[i], 3) != 3)
1054 				goto LEAVE_UPDATE;
1055 		}
1056 		/* Read temp sensors (2 byte settings / sensor) */
1057 		for (i = 0; i < 16; i++) {
1058 			if (abituguru3_read(data, ABIT_UGURU3_SENSORS_BANK,
1059 					ABIT_UGURU3_VALUES_START + 32 + i,
1060 					1, &data->value[32 + i]) != 1)
1061 				goto LEAVE_UPDATE;
1062 			if (abituguru3_read_increment_offset(data,
1063 					ABIT_UGURU3_SETTINGS_BANK,
1064 					ABIT_UGURU3_SETTINGS_START + 32 * 3 +
1065 						i * 2, 1,
1066 					data->settings[32 + i], 2) != 2)
1067 				goto LEAVE_UPDATE;
1068 		}
1069 		data->last_updated = jiffies;
1070 		data->valid = 1;
1071 	}
1072 LEAVE_UPDATE:
1073 	mutex_unlock(&data->update_lock);
1074 	if (data->valid)
1075 		return data;
1076 	else
1077 		return NULL;
1078 }
1079 
1080 #ifdef CONFIG_PM
1081 static int abituguru3_suspend(struct platform_device *pdev, pm_message_t state)
1082 {
1083 	struct abituguru3_data *data = platform_get_drvdata(pdev);
1084 	/* make sure all communications with the uguru3 are done and no new
1085 	   ones are started */
1086 	mutex_lock(&data->update_lock);
1087 	return 0;
1088 }
1089 
1090 static int abituguru3_resume(struct platform_device *pdev)
1091 {
1092 	struct abituguru3_data *data = platform_get_drvdata(pdev);
1093 	mutex_unlock(&data->update_lock);
1094 	return 0;
1095 }
1096 #else
1097 #define abituguru3_suspend	NULL
1098 #define abituguru3_resume	NULL
1099 #endif /* CONFIG_PM */
1100 
1101 static struct platform_driver abituguru3_driver = {
1102 	.driver = {
1103 		.owner	= THIS_MODULE,
1104 		.name	= ABIT_UGURU3_NAME,
1105 	},
1106 	.probe	= abituguru3_probe,
1107 	.remove	= __devexit_p(abituguru3_remove),
1108 	.suspend = abituguru3_suspend,
1109 	.resume = abituguru3_resume
1110 };
1111 
1112 static int __init abituguru3_detect(void)
1113 {
1114 	/* See if there is an uguru3 there. An idle uGuru3 will hold 0x00 or
1115 	   0x08 at DATA and 0xAC at CMD. Sometimes the uGuru3 will hold 0x05
1116 	   or 0x55 at CMD instead, why is unknown. */
1117 	u8 data_val = inb_p(ABIT_UGURU3_BASE + ABIT_UGURU3_DATA);
1118 	u8 cmd_val = inb_p(ABIT_UGURU3_BASE + ABIT_UGURU3_CMD);
1119 	if (((data_val == 0x00) || (data_val == 0x08)) &&
1120 			((cmd_val == 0xAC) || (cmd_val == 0x05) ||
1121 			 (cmd_val == 0x55)))
1122 		return ABIT_UGURU3_BASE;
1123 
1124 	ABIT_UGURU3_DEBUG("no Abit uGuru3 found, data = 0x%02X, cmd = "
1125 		"0x%02X\n", (unsigned int)data_val, (unsigned int)cmd_val);
1126 
1127 	if (force) {
1128 		printk(KERN_INFO ABIT_UGURU3_NAME ": Assuming Abit uGuru3 is "
1129 				"present because of \"force\" parameter\n");
1130 		return ABIT_UGURU3_BASE;
1131 	}
1132 
1133 	/* No uGuru3 found */
1134 	return -ENODEV;
1135 }
1136 
1137 static struct platform_device *abituguru3_pdev;
1138 
1139 static int __init abituguru3_init(void)
1140 {
1141 	int address, err;
1142 	struct resource res = { .flags = IORESOURCE_IO };
1143 
1144 #ifdef CONFIG_DMI
1145 	const char *board_vendor = dmi_get_system_info(DMI_BOARD_VENDOR);
1146 
1147 	/* safety check, refuse to load on non Abit motherboards */
1148 	if (!force && (!board_vendor ||
1149 			strcmp(board_vendor, "http://www.abit.com.tw/")))
1150 		return -ENODEV;
1151 #endif
1152 
1153 	address = abituguru3_detect();
1154 	if (address < 0)
1155 		return address;
1156 
1157 	err = platform_driver_register(&abituguru3_driver);
1158 	if (err)
1159 		goto exit;
1160 
1161 	abituguru3_pdev = platform_device_alloc(ABIT_UGURU3_NAME, address);
1162 	if (!abituguru3_pdev) {
1163 		printk(KERN_ERR ABIT_UGURU3_NAME
1164 			": Device allocation failed\n");
1165 		err = -ENOMEM;
1166 		goto exit_driver_unregister;
1167 	}
1168 
1169 	res.start = address;
1170 	res.end = address + ABIT_UGURU3_REGION_LENGTH - 1;
1171 	res.name = ABIT_UGURU3_NAME;
1172 
1173 	err = platform_device_add_resources(abituguru3_pdev, &res, 1);
1174 	if (err) {
1175 		printk(KERN_ERR ABIT_UGURU3_NAME
1176 			": Device resource addition failed (%d)\n", err);
1177 		goto exit_device_put;
1178 	}
1179 
1180 	err = platform_device_add(abituguru3_pdev);
1181 	if (err) {
1182 		printk(KERN_ERR ABIT_UGURU3_NAME
1183 			": Device addition failed (%d)\n", err);
1184 		goto exit_device_put;
1185 	}
1186 
1187 	return 0;
1188 
1189 exit_device_put:
1190 	platform_device_put(abituguru3_pdev);
1191 exit_driver_unregister:
1192 	platform_driver_unregister(&abituguru3_driver);
1193 exit:
1194 	return err;
1195 }
1196 
1197 static void __exit abituguru3_exit(void)
1198 {
1199 	platform_device_unregister(abituguru3_pdev);
1200 	platform_driver_unregister(&abituguru3_driver);
1201 }
1202 
1203 MODULE_AUTHOR("Hans de Goede <j.w.r.degoede@hhs.nl>");
1204 MODULE_DESCRIPTION("Abit uGuru3 Sensor device");
1205 MODULE_LICENSE("GPL");
1206 
1207 module_init(abituguru3_init);
1208 module_exit(abituguru3_exit);
1209