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MIPS: Yosemite, Emma: Fix off-by-two in arcs_cmdline buffer size check
[linux-2.6/linux-mips.git] / drivers / hwmon / abituguru3.c
blobd30855a75786ec7609b624b7492631cda41ab540
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 /* Timeouts / Retries, if these turn out to need a lot of fiddling we could
66 convert them to params. Determined by trial and error. I assume this is
67 cpu-speed independent, since the ISA-bus and not the CPU should be the
68 bottleneck. */
69 #define ABIT_UGURU3_WAIT_TIMEOUT 250
70 /* Normally the 0xAC at the end of synchronize() is reported after the
71 first read, but sometimes not and we need to poll */
72 #define ABIT_UGURU3_SYNCHRONIZE_TIMEOUT 5
73 /* utility macros */
74 #define ABIT_UGURU3_NAME "abituguru3"
75 #define ABIT_UGURU3_DEBUG(format, arg...) \
76 if (verbose) \
77 printk(KERN_DEBUG ABIT_UGURU3_NAME ": " format , ## arg)
78
79 /* Macros to help calculate the sysfs_names array length */
80 #define ABIT_UGURU3_MAX_NO_SENSORS 26
81 /* sum of strlen +1 of: in??_input\0, in??_{min,max}\0, in??_{min,max}_alarm\0,
82 in??_{min,max}_alarm_enable\0, in??_beep\0, in??_shutdown\0, in??_label\0 */
83 #define ABIT_UGURU3_IN_NAMES_LENGTH (11 + 2 * 9 + 2 * 15 + 2 * 22 + 10 + 14 + 11)
84 /* sum of strlen +1 of: temp??_input\0, temp??_max\0, temp??_crit\0,
85 temp??_alarm\0, temp??_alarm_enable\0, temp??_beep\0, temp??_shutdown\0,
86 temp??_label\0 */
87 #define ABIT_UGURU3_TEMP_NAMES_LENGTH (13 + 11 + 12 + 13 + 20 + 12 + 16 + 13)
88 /* sum of strlen +1 of: fan??_input\0, fan??_min\0, fan??_alarm\0,
89 fan??_alarm_enable\0, fan??_beep\0, fan??_shutdown\0, fan??_label\0 */
90 #define ABIT_UGURU3_FAN_NAMES_LENGTH (12 + 10 + 12 + 19 + 11 + 15 + 12)
91 /* Worst case scenario 16 in sensors (longest names_length) and the rest
92 temp sensors (second longest names_length). */
93 #define ABIT_UGURU3_SYSFS_NAMES_LENGTH (16 * ABIT_UGURU3_IN_NAMES_LENGTH + \
94 (ABIT_UGURU3_MAX_NO_SENSORS - 16) * ABIT_UGURU3_TEMP_NAMES_LENGTH)
95
96 /* All the macros below are named identical to the openguru2 program
97 reverse engineered by Louis Kruger, hence the names might not be 100%
98 logical. I could come up with better names, but I prefer keeping the names
99 identical so that this driver can be compared with his work more easily. */
100 /* Two i/o-ports are used by uGuru */
101 #define ABIT_UGURU3_BASE 0x00E0
102 #define ABIT_UGURU3_CMD 0x00
103 #define ABIT_UGURU3_DATA 0x04
104 #define ABIT_UGURU3_REGION_LENGTH 5
105 /* The wait_xxx functions return this on success and the last contents
106 of the DATA register (0-255) on failure. */
107 #define ABIT_UGURU3_SUCCESS -1
108 /* uGuru status flags */
109 #define ABIT_UGURU3_STATUS_READY_FOR_READ 0x01
110 #define ABIT_UGURU3_STATUS_BUSY 0x02
111
112
113 /* Structures */
114 struct abituguru3_sensor_info {
115 const char* name;
116 int port;
117 int type;
118 int multiplier;
119 int divisor;
120 int offset;
121 };
122
123 /* Avoid use of flexible array members */
124 #define ABIT_UGURU3_MAX_DMI_NAMES 2
125
126 struct abituguru3_motherboard_info {
127 u16 id;
128 const char *dmi_name[ABIT_UGURU3_MAX_DMI_NAMES + 1];
129 /* + 1 -> end of sensors indicated by a sensor with name == NULL */
130 struct abituguru3_sensor_info sensors[ABIT_UGURU3_MAX_NO_SENSORS + 1];
131 };
132
133 /* For the Abit uGuru, we need to keep some data in memory.
134 The structure is dynamically allocated, at the same time when a new
135 abituguru3 device is allocated. */
136 struct abituguru3_data {
137 struct device *hwmon_dev; /* hwmon registered device */
138 struct mutex update_lock; /* protect access to data and uGuru */
139 unsigned short addr; /* uguru base address */
140 char valid; /* !=0 if following fields are valid */
141 unsigned long last_updated; /* In jiffies */
142
143 /* For convenience the sysfs attr and their names are generated
144 automatically. We have max 10 entries per sensor (for in sensors) */
145 struct sensor_device_attribute_2 sysfs_attr[ABIT_UGURU3_MAX_NO_SENSORS
146 * 10];
147
148 /* Buffer to store the dynamically generated sysfs names */
149 char sysfs_names[ABIT_UGURU3_SYSFS_NAMES_LENGTH];
150
151 /* Pointer to the sensors info for the detected motherboard */
152 const struct abituguru3_sensor_info *sensors;
153
154 /* The abituguru3 supports up to 48 sensors, and thus has registers
155 sets for 48 sensors, for convienence reasons / simplicity of the
156 code we always read and store all registers for all 48 sensors */
157
158 /* Alarms for all 48 sensors (1 bit per sensor) */
159 u8 alarms[48/8];
160
161 /* Value of all 48 sensors */
162 u8 value[48];
163
164 /* Settings of all 48 sensors, note in and temp sensors (the first 32
165 sensors) have 3 bytes of settings, while fans only have 2 bytes,
166 for convenience we use 3 bytes for all sensors */
167 u8 settings[48][3];
168 };
169
170
171 /* Constants */
172 static const struct abituguru3_motherboard_info abituguru3_motherboards[] = {
173 { 0x000C, { NULL } /* Unknown, need DMI string */, {
174 { "CPU Core", 0, 0, 10, 1, 0 },
175 { "DDR", 1, 0, 10, 1, 0 },
176 { "DDR VTT", 2, 0, 10, 1, 0 },
177 { "CPU VTT 1.2V", 3, 0, 10, 1, 0 },
178 { "MCH & PCIE 1.5V", 4, 0, 10, 1, 0 },
179 { "MCH 2.5V", 5, 0, 20, 1, 0 },
180 { "ICH 1.05V", 6, 0, 10, 1, 0 },
181 { "ATX +12V (24-Pin)", 7, 0, 60, 1, 0 },
182 { "ATX +12V (4-pin)", 8, 0, 60, 1, 0 },
183 { "ATX +5V", 9, 0, 30, 1, 0 },
184 { "+3.3V", 10, 0, 20, 1, 0 },
185 { "5VSB", 11, 0, 30, 1, 0 },
186 { "CPU", 24, 1, 1, 1, 0 },
187 { "System", 25, 1, 1, 1, 0 },
188 { "PWM", 26, 1, 1, 1, 0 },
189 { "CPU Fan", 32, 2, 60, 1, 0 },
190 { "NB Fan", 33, 2, 60, 1, 0 },
191 { "SYS FAN", 34, 2, 60, 1, 0 },
192 { "AUX1 Fan", 35, 2, 60, 1, 0 },
193 { NULL, 0, 0, 0, 0, 0 } }
194 },
195 { 0x000D, { NULL } /* Abit AW8, need DMI string */, {
196 { "CPU Core", 0, 0, 10, 1, 0 },
197 { "DDR", 1, 0, 10, 1, 0 },
198 { "DDR VTT", 2, 0, 10, 1, 0 },
199 { "CPU VTT 1.2V", 3, 0, 10, 1, 0 },
200 { "MCH & PCIE 1.5V", 4, 0, 10, 1, 0 },
201 { "MCH 2.5V", 5, 0, 20, 1, 0 },
202 { "ICH 1.05V", 6, 0, 10, 1, 0 },
203 { "ATX +12V (24-Pin)", 7, 0, 60, 1, 0 },
204 { "ATX +12V (4-pin)", 8, 0, 60, 1, 0 },
205 { "ATX +5V", 9, 0, 30, 1, 0 },
206 { "+3.3V", 10, 0, 20, 1, 0 },
207 { "5VSB", 11, 0, 30, 1, 0 },
208 { "CPU", 24, 1, 1, 1, 0 },
209 { "System", 25, 1, 1, 1, 0 },
210 { "PWM1", 26, 1, 1, 1, 0 },
211 { "PWM2", 27, 1, 1, 1, 0 },
212 { "PWM3", 28, 1, 1, 1, 0 },
213 { "PWM4", 29, 1, 1, 1, 0 },
214 { "CPU Fan", 32, 2, 60, 1, 0 },
215 { "NB Fan", 33, 2, 60, 1, 0 },
216 { "SYS Fan", 34, 2, 60, 1, 0 },
217 { "AUX1 Fan", 35, 2, 60, 1, 0 },
218 { "AUX2 Fan", 36, 2, 60, 1, 0 },
219 { "AUX3 Fan", 37, 2, 60, 1, 0 },
220 { "AUX4 Fan", 38, 2, 60, 1, 0 },
221 { "AUX5 Fan", 39, 2, 60, 1, 0 },
222 { NULL, 0, 0, 0, 0, 0 } }
223 },
224 { 0x000E, { NULL } /* AL-8, need DMI string */, {
225 { "CPU Core", 0, 0, 10, 1, 0 },
226 { "DDR", 1, 0, 10, 1, 0 },
227 { "DDR VTT", 2, 0, 10, 1, 0 },
228 { "CPU VTT 1.2V", 3, 0, 10, 1, 0 },
229 { "MCH & PCIE 1.5V", 4, 0, 10, 1, 0 },
230 { "MCH 2.5V", 5, 0, 20, 1, 0 },
231 { "ICH 1.05V", 6, 0, 10, 1, 0 },
232 { "ATX +12V (24-Pin)", 7, 0, 60, 1, 0 },
233 { "ATX +12V (4-pin)", 8, 0, 60, 1, 0 },
234 { "ATX +5V", 9, 0, 30, 1, 0 },
235 { "+3.3V", 10, 0, 20, 1, 0 },
236 { "5VSB", 11, 0, 30, 1, 0 },
237 { "CPU", 24, 1, 1, 1, 0 },
238 { "System", 25, 1, 1, 1, 0 },
239 { "PWM", 26, 1, 1, 1, 0 },
240 { "CPU Fan", 32, 2, 60, 1, 0 },
241 { "NB Fan", 33, 2, 60, 1, 0 },
242 { "SYS Fan", 34, 2, 60, 1, 0 },
243 { NULL, 0, 0, 0, 0, 0 } }
244 },
245 { 0x000F, { NULL } /* Unknown, need DMI string */, {
246
247 { "CPU Core", 0, 0, 10, 1, 0 },
248 { "DDR", 1, 0, 10, 1, 0 },
249 { "DDR VTT", 2, 0, 10, 1, 0 },
250 { "CPU VTT 1.2V", 3, 0, 10, 1, 0 },
251 { "MCH & PCIE 1.5V", 4, 0, 10, 1, 0 },
252 { "MCH 2.5V", 5, 0, 20, 1, 0 },
253 { "ICH 1.05V", 6, 0, 10, 1, 0 },
254 { "ATX +12V (24-Pin)", 7, 0, 60, 1, 0 },
255 { "ATX +12V (4-pin)", 8, 0, 60, 1, 0 },
256 { "ATX +5V", 9, 0, 30, 1, 0 },
257 { "+3.3V", 10, 0, 20, 1, 0 },
258 { "5VSB", 11, 0, 30, 1, 0 },
259 { "CPU", 24, 1, 1, 1, 0 },
260 { "System", 25, 1, 1, 1, 0 },
261 { "PWM", 26, 1, 1, 1, 0 },
262 { "CPU Fan", 32, 2, 60, 1, 0 },
263 { "NB Fan", 33, 2, 60, 1, 0 },
264 { "SYS Fan", 34, 2, 60, 1, 0 },
265 { NULL, 0, 0, 0, 0, 0 } }
266 },
267 { 0x0010, { NULL } /* Abit NI8 SLI GR, need DMI string */, {
268 { "CPU Core", 0, 0, 10, 1, 0 },
269 { "DDR", 1, 0, 10, 1, 0 },
270 { "DDR VTT", 2, 0, 10, 1, 0 },
271 { "CPU VTT 1.2V", 3, 0, 10, 1, 0 },
272 { "NB 1.4V", 4, 0, 10, 1, 0 },
273 { "SB 1.5V", 6, 0, 10, 1, 0 },
274 { "ATX +12V (24-Pin)", 7, 0, 60, 1, 0 },
275 { "ATX +12V (4-pin)", 8, 0, 60, 1, 0 },
276 { "ATX +5V", 9, 0, 30, 1, 0 },
277 { "+3.3V", 10, 0, 20, 1, 0 },
278 { "5VSB", 11, 0, 30, 1, 0 },
279 { "CPU", 24, 1, 1, 1, 0 },
280 { "SYS", 25, 1, 1, 1, 0 },
281 { "PWM", 26, 1, 1, 1, 0 },
282 { "CPU Fan", 32, 2, 60, 1, 0 },
283 { "NB Fan", 33, 2, 60, 1, 0 },
284 { "SYS Fan", 34, 2, 60, 1, 0 },
285 { "AUX1 Fan", 35, 2, 60, 1, 0 },
286 { "OTES1 Fan", 36, 2, 60, 1, 0 },
287 { NULL, 0, 0, 0, 0, 0 } }
288 },
289 { 0x0011, { "AT8 32X", NULL }, {
290 { "CPU Core", 0, 0, 10, 1, 0 },
291 { "DDR", 1, 0, 20, 1, 0 },
292 { "DDR VTT", 2, 0, 10, 1, 0 },
293 { "CPU VDDA 2.5V", 6, 0, 20, 1, 0 },
294 { "NB 1.8V", 4, 0, 10, 1, 0 },
295 { "NB 1.8V Dual", 5, 0, 10, 1, 0 },
296 { "HTV 1.2", 3, 0, 10, 1, 0 },
297 { "PCIE 1.2V", 12, 0, 10, 1, 0 },
298 { "NB 1.2V", 13, 0, 10, 1, 0 },
299 { "ATX +12V (24-Pin)", 7, 0, 60, 1, 0 },
300 { "ATX +12V (4-pin)", 8, 0, 60, 1, 0 },
301 { "ATX +5V", 9, 0, 30, 1, 0 },
302 { "+3.3V", 10, 0, 20, 1, 0 },
303 { "5VSB", 11, 0, 30, 1, 0 },
304 { "CPU", 24, 1, 1, 1, 0 },
305 { "NB", 25, 1, 1, 1, 0 },
306 { "System", 26, 1, 1, 1, 0 },
307 { "PWM", 27, 1, 1, 1, 0 },
308 { "CPU Fan", 32, 2, 60, 1, 0 },
309 { "NB Fan", 33, 2, 60, 1, 0 },
310 { "SYS Fan", 34, 2, 60, 1, 0 },
311 { "AUX1 Fan", 35, 2, 60, 1, 0 },
312 { "AUX2 Fan", 36, 2, 60, 1, 0 },
313 { "AUX3 Fan", 37, 2, 60, 1, 0 },
314 { NULL, 0, 0, 0, 0, 0 } }
315 },
316 { 0x0012, { NULL } /* Abit AN8 32X, need DMI string */, {
317 { "CPU Core", 0, 0, 10, 1, 0 },
318 { "DDR", 1, 0, 20, 1, 0 },
319 { "DDR VTT", 2, 0, 10, 1, 0 },
320 { "HyperTransport", 3, 0, 10, 1, 0 },
321 { "CPU VDDA 2.5V", 5, 0, 20, 1, 0 },
322 { "NB", 4, 0, 10, 1, 0 },
323 { "SB", 6, 0, 10, 1, 0 },
324 { "ATX +12V (24-Pin)", 7, 0, 60, 1, 0 },
325 { "ATX +12V (4-pin)", 8, 0, 60, 1, 0 },
326 { "ATX +5V", 9, 0, 30, 1, 0 },
327 { "+3.3V", 10, 0, 20, 1, 0 },
328 { "5VSB", 11, 0, 30, 1, 0 },
329 { "CPU", 24, 1, 1, 1, 0 },
330 { "SYS", 25, 1, 1, 1, 0 },
331 { "PWM", 26, 1, 1, 1, 0 },
332 { "CPU Fan", 32, 2, 60, 1, 0 },
333 { "NB Fan", 33, 2, 60, 1, 0 },
334 { "SYS Fan", 34, 2, 60, 1, 0 },
335 { "AUX1 Fan", 36, 2, 60, 1, 0 },
336 { NULL, 0, 0, 0, 0, 0 } }
337 },
338 { 0x0013, { NULL } /* Abit AW8D, need DMI string */, {
339 { "CPU Core", 0, 0, 10, 1, 0 },
340 { "DDR", 1, 0, 10, 1, 0 },
341 { "DDR VTT", 2, 0, 10, 1, 0 },
342 { "CPU VTT 1.2V", 3, 0, 10, 1, 0 },
343 { "MCH & PCIE 1.5V", 4, 0, 10, 1, 0 },
344 { "MCH 2.5V", 5, 0, 20, 1, 0 },
345 { "ICH 1.05V", 6, 0, 10, 1, 0 },
346 { "ATX +12V (24-Pin)", 7, 0, 60, 1, 0 },
347 { "ATX +12V (4-pin)", 8, 0, 60, 1, 0 },
348 { "ATX +5V", 9, 0, 30, 1, 0 },
349 { "+3.3V", 10, 0, 20, 1, 0 },
350 { "5VSB", 11, 0, 30, 1, 0 },
351 { "CPU", 24, 1, 1, 1, 0 },
352 { "System", 25, 1, 1, 1, 0 },
353 { "PWM1", 26, 1, 1, 1, 0 },
354 { "PWM2", 27, 1, 1, 1, 0 },
355 { "PWM3", 28, 1, 1, 1, 0 },
356 { "PWM4", 29, 1, 1, 1, 0 },
357 { "CPU Fan", 32, 2, 60, 1, 0 },
358 { "NB Fan", 33, 2, 60, 1, 0 },
359 { "SYS Fan", 34, 2, 60, 1, 0 },
360 { "AUX1 Fan", 35, 2, 60, 1, 0 },
361 { "AUX2 Fan", 36, 2, 60, 1, 0 },
362 { "AUX3 Fan", 37, 2, 60, 1, 0 },
363 { "AUX4 Fan", 38, 2, 60, 1, 0 },
364 { "AUX5 Fan", 39, 2, 60, 1, 0 },
365 { NULL, 0, 0, 0, 0, 0 } }
366 },
367 { 0x0014, { "AB9", "AB9 Pro", NULL }, {
368 { "CPU Core", 0, 0, 10, 1, 0 },
369 { "DDR", 1, 0, 10, 1, 0 },
370 { "DDR VTT", 2, 0, 10, 1, 0 },
371 { "CPU VTT 1.2V", 3, 0, 10, 1, 0 },
372 { "MCH & PCIE 1.5V", 4, 0, 10, 1, 0 },
373 { "MCH 2.5V", 5, 0, 20, 1, 0 },
374 { "ICH 1.05V", 6, 0, 10, 1, 0 },
375 { "ATX +12V (24-Pin)", 7, 0, 60, 1, 0 },
376 { "ATX +12V (4-pin)", 8, 0, 60, 1, 0 },
377 { "ATX +5V", 9, 0, 30, 1, 0 },
378 { "+3.3V", 10, 0, 20, 1, 0 },
379 { "5VSB", 11, 0, 30, 1, 0 },
380 { "CPU", 24, 1, 1, 1, 0 },
381 { "System", 25, 1, 1, 1, 0 },
382 { "PWM", 26, 1, 1, 1, 0 },
383 { "CPU Fan", 32, 2, 60, 1, 0 },
384 { "NB Fan", 33, 2, 60, 1, 0 },
385 { "SYS Fan", 34, 2, 60, 1, 0 },
386 { NULL, 0, 0, 0, 0, 0 } }
387 },
388 { 0x0015, { NULL } /* Unknown, need DMI string */, {
389 { "CPU Core", 0, 0, 10, 1, 0 },
390 { "DDR", 1, 0, 20, 1, 0 },
391 { "DDR VTT", 2, 0, 10, 1, 0 },
392 { "HyperTransport", 3, 0, 10, 1, 0 },
393 { "CPU VDDA 2.5V", 5, 0, 20, 1, 0 },
394 { "NB", 4, 0, 10, 1, 0 },
395 { "SB", 6, 0, 10, 1, 0 },
396 { "ATX +12V (24-Pin)", 7, 0, 60, 1, 0 },
397 { "ATX +12V (4-pin)", 8, 0, 60, 1, 0 },
398 { "ATX +5V", 9, 0, 30, 1, 0 },
399 { "+3.3V", 10, 0, 20, 1, 0 },
400 { "5VSB", 11, 0, 30, 1, 0 },
401 { "CPU", 24, 1, 1, 1, 0 },
402 { "SYS", 25, 1, 1, 1, 0 },
403 { "PWM", 26, 1, 1, 1, 0 },
404 { "CPU Fan", 32, 2, 60, 1, 0 },
405 { "NB Fan", 33, 2, 60, 1, 0 },
406 { "SYS Fan", 34, 2, 60, 1, 0 },
407 { "AUX1 Fan", 33, 2, 60, 1, 0 },
408 { "AUX2 Fan", 35, 2, 60, 1, 0 },
409 { "AUX3 Fan", 36, 2, 60, 1, 0 },
410 { NULL, 0, 0, 0, 0, 0 } }
411 },
412 { 0x0016, { "AW9D-MAX", NULL }, {
413 { "CPU Core", 0, 0, 10, 1, 0 },
414 { "DDR2", 1, 0, 20, 1, 0 },
415 { "DDR2 VTT", 2, 0, 10, 1, 0 },
416 { "CPU VTT 1.2V", 3, 0, 10, 1, 0 },
417 { "MCH & PCIE 1.5V", 4, 0, 10, 1, 0 },
418 { "MCH 2.5V", 5, 0, 20, 1, 0 },
419 { "ICH 1.05V", 6, 0, 10, 1, 0 },
420 { "ATX +12V (24-Pin)", 7, 0, 60, 1, 0 },
421 { "ATX +12V (4-pin)", 8, 0, 60, 1, 0 },
422 { "ATX +5V", 9, 0, 30, 1, 0 },
423 { "+3.3V", 10, 0, 20, 1, 0 },
424 { "5VSB", 11, 0, 30, 1, 0 },
425 { "CPU", 24, 1, 1, 1, 0 },
426 { "System", 25, 1, 1, 1, 0 },
427 { "PWM1", 26, 1, 1, 1, 0 },
428 { "PWM2", 27, 1, 1, 1, 0 },
429 { "PWM3", 28, 1, 1, 1, 0 },
430 { "PWM4", 29, 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", 35, 2, 60, 1, 0 },
435 { "AUX2 Fan", 36, 2, 60, 1, 0 },
436 { "AUX3 Fan", 37, 2, 60, 1, 0 },
437 { "OTES1 Fan", 38, 2, 60, 1, 0 },
438 { NULL, 0, 0, 0, 0, 0 } }
439 },
440 { 0x0017, { NULL } /* Unknown, need DMI string */, {
441 { "CPU Core", 0, 0, 10, 1, 0 },
442 { "DDR2", 1, 0, 20, 1, 0 },
443 { "DDR2 VTT", 2, 0, 10, 1, 0 },
444 { "HyperTransport", 3, 0, 10, 1, 0 },
445 { "CPU VDDA 2.5V", 6, 0, 20, 1, 0 },
446 { "NB 1.8V", 4, 0, 10, 1, 0 },
447 { "NB 1.2V ", 13, 0, 10, 1, 0 },
448 { "SB 1.2V", 5, 0, 10, 1, 0 },
449 { "PCIE 1.2V", 12, 0, 10, 1, 0 },
450 { "ATX +12V (24-Pin)", 7, 0, 60, 1, 0 },
451 { "ATX +12V (4-pin)", 8, 0, 60, 1, 0 },
452 { "ATX +5V", 9, 0, 30, 1, 0 },
453 { "ATX +3.3V", 10, 0, 20, 1, 0 },
454 { "ATX 5VSB", 11, 0, 30, 1, 0 },
455 { "CPU", 24, 1, 1, 1, 0 },
456 { "System", 26, 1, 1, 1, 0 },
457 { "PWM", 27, 1, 1, 1, 0 },
458 { "CPU FAN", 32, 2, 60, 1, 0 },
459 { "SYS FAN", 34, 2, 60, 1, 0 },
460 { "AUX1 FAN", 35, 2, 60, 1, 0 },
461 { "AUX2 FAN", 36, 2, 60, 1, 0 },
462 { "AUX3 FAN", 37, 2, 60, 1, 0 },
463 { NULL, 0, 0, 0, 0, 0 } }
464 },
465 { 0x0018, { "AB9 QuadGT", NULL }, {
466 { "CPU Core", 0, 0, 10, 1, 0 },
467 { "DDR2", 1, 0, 20, 1, 0 },
468 { "DDR2 VTT", 2, 0, 10, 1, 0 },
469 { "CPU VTT", 3, 0, 10, 1, 0 },
470 { "MCH 1.25V", 4, 0, 10, 1, 0 },
471 { "ICHIO 1.5V", 5, 0, 10, 1, 0 },
472 { "ICH 1.05V", 6, 0, 10, 1, 0 },
473 { "ATX +12V (24-Pin)", 7, 0, 60, 1, 0 },
474 { "ATX +12V (4-pin)", 8, 0, 60, 1, 0 },
475 { "ATX +5V", 9, 0, 30, 1, 0 },
476 { "+3.3V", 10, 0, 20, 1, 0 },
477 { "5VSB", 11, 0, 30, 1, 0 },
478 { "CPU", 24, 1, 1, 1, 0 },
479 { "System", 25, 1, 1, 1, 0 },
480 { "PWM Phase1", 26, 1, 1, 1, 0 },
481 { "PWM Phase2", 27, 1, 1, 1, 0 },
482 { "PWM Phase3", 28, 1, 1, 1, 0 },
483 { "PWM Phase4", 29, 1, 1, 1, 0 },
484 { "PWM Phase5", 30, 1, 1, 1, 0 },
485 { "CPU Fan", 32, 2, 60, 1, 0 },
486 { "SYS Fan", 34, 2, 60, 1, 0 },
487 { "AUX1 Fan", 33, 2, 60, 1, 0 },
488 { "AUX2 Fan", 35, 2, 60, 1, 0 },
489 { "AUX3 Fan", 36, 2, 60, 1, 0 },
490 { NULL, 0, 0, 0, 0, 0 } }
491 },
492 { 0x0019, { "IN9 32X MAX", NULL }, {
493 { "CPU Core", 7, 0, 10, 1, 0 },
494 { "DDR2", 13, 0, 20, 1, 0 },
495 { "DDR2 VTT", 14, 0, 10, 1, 0 },
496 { "CPU VTT", 3, 0, 20, 1, 0 },
497 { "NB 1.2V", 4, 0, 10, 1, 0 },
498 { "SB 1.5V", 6, 0, 10, 1, 0 },
499 { "HyperTransport", 5, 0, 10, 1, 0 },
500 { "ATX +12V (24-Pin)", 12, 0, 60, 1, 0 },
501 { "ATX +12V (4-pin)", 8, 0, 60, 1, 0 },
502 { "ATX +5V", 9, 0, 30, 1, 0 },
503 { "ATX +3.3V", 10, 0, 20, 1, 0 },
504 { "ATX 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 { 0x001A, { "IP35 Pro", "IP35 Pro XE", NULL }, {
520 { "CPU Core", 0, 0, 10, 1, 0 },
521 { "DDR2", 1, 0, 20, 1, 0 },
522 { "DDR2 VTT", 2, 0, 10, 1, 0 },
523 { "CPU VTT 1.2V", 3, 0, 10, 1, 0 },
524 { "MCH 1.25V", 4, 0, 10, 1, 0 },
525 { "ICHIO 1.5V", 5, 0, 10, 1, 0 },
526 { "ICH 1.05V", 6, 0, 10, 1, 0 },
527 { "ATX +12V (24-Pin)", 7, 0, 60, 1, 0 },
528 { "ATX +12V (8-pin)", 8, 0, 60, 1, 0 },
529 { "ATX +5V", 9, 0, 30, 1, 0 },
530 { "+3.3V", 10, 0, 20, 1, 0 },
531 { "5VSB", 11, 0, 30, 1, 0 },
532 { "CPU", 24, 1, 1, 1, 0 },
533 { "System", 25, 1, 1, 1, 0 },
534 { "PWM", 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 { "AUX4 Fan", 37, 2, 60, 1, 0 },
545 { NULL, 0, 0, 0, 0, 0 } }
546 },
547 { 0x001B, { NULL } /* Unknown, need DMI string */, {
548 { "CPU Core", 0, 0, 10, 1, 0 },
549 { "DDR3", 1, 0, 20, 1, 0 },
550 { "DDR3 VTT", 2, 0, 10, 1, 0 },
551 { "CPU VTT", 3, 0, 10, 1, 0 },
552 { "MCH 1.25V", 4, 0, 10, 1, 0 },
553 { "ICHIO 1.5V", 5, 0, 10, 1, 0 },
554 { "ICH 1.05V", 6, 0, 10, 1, 0 },
555 { "ATX +12V (24-Pin)", 7, 0, 60, 1, 0 },
556 { "ATX +12V (8-pin)", 8, 0, 60, 1, 0 },
557 { "ATX +5V", 9, 0, 30, 1, 0 },
558 { "+3.3V", 10, 0, 20, 1, 0 },
559 { "5VSB", 11, 0, 30, 1, 0 },
560 { "CPU", 24, 1, 1, 1, 0 },
561 { "System", 25, 1, 1, 1, 0 },
562 { "PWM Phase1", 26, 1, 1, 1, 0 },
563 { "PWM Phase2", 27, 1, 1, 1, 0 },
564 { "PWM Phase3", 28, 1, 1, 1, 0 },
565 { "PWM Phase4", 29, 1, 1, 1, 0 },
566 { "PWM Phase5", 30, 1, 1, 1, 0 },
567 { "CPU Fan", 32, 2, 60, 1, 0 },
568 { "SYS Fan", 34, 2, 60, 1, 0 },
569 { "AUX1 Fan", 33, 2, 60, 1, 0 },
570 { "AUX2 Fan", 35, 2, 60, 1, 0 },
571 { "AUX3 Fan", 36, 2, 60, 1, 0 },
572 { NULL, 0, 0, 0, 0, 0 } }
573 },
574 { 0x001C, { "IX38 QuadGT", NULL }, {
575 { "CPU Core", 0, 0, 10, 1, 0 },
576 { "DDR2", 1, 0, 20, 1, 0 },
577 { "DDR2 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 { 0x0000, { NULL }, { { NULL, 0, 0, 0, 0, 0 } } }
602 };
603
604
605 /* Insmod parameters */
606 static int force;
607 module_param(force, bool, 0);
608 MODULE_PARM_DESC(force, "Set to one to force detection.");
609 /* Default verbose is 1, since this driver is still in the testing phase */
610 static int verbose = 1;
611 module_param(verbose, bool, 0644);
612 MODULE_PARM_DESC(verbose, "Enable/disable verbose error reporting");
613
614 static const char *never_happen = "This should never happen.";
615 static const char *report_this =
616 "Please report this to the abituguru3 maintainer (see MAINTAINERS)";
617
618 /* wait while the uguru is busy (usually after a write) */
619 static int abituguru3_wait_while_busy(struct abituguru3_data *data)
620 {
621 u8 x;
622 int timeout = ABIT_UGURU3_WAIT_TIMEOUT;
623
624 while ((x = inb_p(data->addr + ABIT_UGURU3_DATA)) &
625 ABIT_UGURU3_STATUS_BUSY) {
626 timeout--;
627 if (timeout == 0)
628 return x;
629 /* sleep a bit before our last try, to give the uGuru3 one
630 last chance to respond. */
631 if (timeout == 1)
632 msleep(1);
633 }
634 return ABIT_UGURU3_SUCCESS;
635 }
636
637 /* wait till uguru is ready to be read */
638 static int abituguru3_wait_for_read(struct abituguru3_data *data)
639 {
640 u8 x;
641 int timeout = ABIT_UGURU3_WAIT_TIMEOUT;
642
643 while (!((x = inb_p(data->addr + ABIT_UGURU3_DATA)) &
644 ABIT_UGURU3_STATUS_READY_FOR_READ)) {
645 timeout--;
646 if (timeout == 0)
647 return x;
648 /* sleep a bit before our last try, to give the uGuru3 one
649 last chance to respond. */
650 if (timeout == 1)
651 msleep(1);
652 }
653 return ABIT_UGURU3_SUCCESS;
654 }
655
656 /* This synchronizes us with the uGuru3's protocol state machine, this
657 must be done before each command. */
658 static int abituguru3_synchronize(struct abituguru3_data *data)
659 {
660 int x, timeout = ABIT_UGURU3_SYNCHRONIZE_TIMEOUT;
661
662 if ((x = abituguru3_wait_while_busy(data)) != ABIT_UGURU3_SUCCESS) {
663 ABIT_UGURU3_DEBUG("synchronize timeout during initial busy "
664 "wait, status: 0x%02x\n", x);
665 return -EIO;
666 }
667
668 outb(0x20, data->addr + ABIT_UGURU3_DATA);
669 if ((x = abituguru3_wait_while_busy(data)) != ABIT_UGURU3_SUCCESS) {
670 ABIT_UGURU3_DEBUG("synchronize timeout after sending 0x20, "
671 "status: 0x%02x\n", x);
672 return -EIO;
673 }
674
675 outb(0x10, data->addr + ABIT_UGURU3_CMD);
676 if ((x = abituguru3_wait_while_busy(data)) != ABIT_UGURU3_SUCCESS) {
677 ABIT_UGURU3_DEBUG("synchronize timeout after sending 0x10, "
678 "status: 0x%02x\n", x);
679 return -EIO;
680 }
681
682 outb(0x00, data->addr + ABIT_UGURU3_CMD);
683 if ((x = abituguru3_wait_while_busy(data)) != ABIT_UGURU3_SUCCESS) {
684 ABIT_UGURU3_DEBUG("synchronize timeout after sending 0x00, "
685 "status: 0x%02x\n", x);
686 return -EIO;
687 }
688
689 if ((x = abituguru3_wait_for_read(data)) != ABIT_UGURU3_SUCCESS) {
690 ABIT_UGURU3_DEBUG("synchronize timeout waiting for read, "
691 "status: 0x%02x\n", x);
692 return -EIO;
693 }
694
695 while ((x = inb(data->addr + ABIT_UGURU3_CMD)) != 0xAC) {
696 timeout--;
697 if (timeout == 0) {
698 ABIT_UGURU3_DEBUG("synchronize timeout cmd does not "
699 "hold 0xAC after synchronize, cmd: 0x%02x\n",
700 x);
701 return -EIO;
702 }
703 msleep(1);
704 }
705 return 0;
706 }
707
708 /* Read count bytes from sensor sensor_addr in bank bank_addr and store the
709 result in buf */
710 static int abituguru3_read(struct abituguru3_data *data, u8 bank, u8 offset,
711 u8 count, u8 *buf)
712 {
713 int i, x;
714
715 if ((x = abituguru3_synchronize(data)))
716 return x;
717
718 outb(0x1A, data->addr + ABIT_UGURU3_DATA);
719 if ((x = abituguru3_wait_while_busy(data)) != ABIT_UGURU3_SUCCESS) {
720 ABIT_UGURU3_DEBUG("read from 0x%02x:0x%02x timed out after "
721 "sending 0x1A, status: 0x%02x\n", (unsigned int)bank,
722 (unsigned int)offset, x);
723 return -EIO;
724 }
725
726 outb(bank, data->addr + ABIT_UGURU3_CMD);
727 if ((x = abituguru3_wait_while_busy(data)) != ABIT_UGURU3_SUCCESS) {
728 ABIT_UGURU3_DEBUG("read from 0x%02x:0x%02x timed out after "
729 "sending the bank, status: 0x%02x\n",
730 (unsigned int)bank, (unsigned int)offset, x);
731 return -EIO;
732 }
733
734 outb(offset, data->addr + ABIT_UGURU3_CMD);
735 if ((x = abituguru3_wait_while_busy(data)) != ABIT_UGURU3_SUCCESS) {
736 ABIT_UGURU3_DEBUG("read from 0x%02x:0x%02x timed out after "
737 "sending the offset, status: 0x%02x\n",
738 (unsigned int)bank, (unsigned int)offset, x);
739 return -EIO;
740 }
741
742 outb(count, data->addr + ABIT_UGURU3_CMD);
743 if ((x = abituguru3_wait_while_busy(data)) != ABIT_UGURU3_SUCCESS) {
744 ABIT_UGURU3_DEBUG("read from 0x%02x:0x%02x timed out after "
745 "sending the count, status: 0x%02x\n",
746 (unsigned int)bank, (unsigned int)offset, x);
747 return -EIO;
748 }
749
750 for (i = 0; i < count; i++) {
751 if ((x = abituguru3_wait_for_read(data)) !=
752 ABIT_UGURU3_SUCCESS) {
753 ABIT_UGURU3_DEBUG("timeout reading byte %d from "
754 "0x%02x:0x%02x, status: 0x%02x\n", i,
755 (unsigned int)bank, (unsigned int)offset, x);
756 break;
757 }
758 buf[i] = inb(data->addr + ABIT_UGURU3_CMD);
759 }
760 return i;
761 }
762
763 /* Sensor settings are stored 1 byte per offset with the bytes
764 placed add consecutive offsets. */
765 static int abituguru3_read_increment_offset(struct abituguru3_data *data,
766 u8 bank, u8 offset, u8 count,
767 u8 *buf, int offset_count)
768 {
769 int i, x;
770
771 for (i = 0; i < offset_count; i++)
772 if ((x = abituguru3_read(data, bank, offset + i, count,
773 buf + i * count)) != count) {
774 if (x < 0)
775 return x;
776 return i * count + x;
777 }
778
779 return i * count;
780 }
781
782 /* Following are the sysfs callback functions. These functions expect:
783 sensor_device_attribute_2->index: index into the data->sensors array
784 sensor_device_attribute_2->nr: register offset, bitmask or NA. */
785 static struct abituguru3_data *abituguru3_update_device(struct device *dev);
786
787 static ssize_t show_value(struct device *dev,
788 struct device_attribute *devattr, char *buf)
789 {
790 int value;
791 struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
792 struct abituguru3_data *data = abituguru3_update_device(dev);
793 const struct abituguru3_sensor_info *sensor;
794
795 if (!data)
796 return -EIO;
797
798 sensor = &data->sensors[attr->index];
799
800 /* are we reading a setting, or is this a normal read? */
801 if (attr->nr)
802 value = data->settings[sensor->port][attr->nr];
803 else
804 value = data->value[sensor->port];
805
806 /* convert the value */
807 value = (value * sensor->multiplier) / sensor->divisor +
808 sensor->offset;
809
810 /* alternatively we could update the sensors settings struct for this,
811 but then its contents would differ from the windows sw ini files */
812 if (sensor->type == ABIT_UGURU3_TEMP_SENSOR)
813 value *= 1000;
814
815 return sprintf(buf, "%d\n", value);
816 }
817
818 static ssize_t show_alarm(struct device *dev,
819 struct device_attribute *devattr, char *buf)
820 {
821 int port;
822 struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
823 struct abituguru3_data *data = abituguru3_update_device(dev);
824
825 if (!data)
826 return -EIO;
827
828 port = data->sensors[attr->index].port;
829
830 /* See if the alarm bit for this sensor is set and if a bitmask is
831 given in attr->nr also check if the alarm matches the type of alarm
832 we're looking for (for volt it can be either low or high). The type
833 is stored in a few readonly bits in the settings of the sensor. */
834 if ((data->alarms[port / 8] & (0x01 << (port % 8))) &&
835 (!attr->nr || (data->settings[port][0] & attr->nr)))
836 return sprintf(buf, "1\n");
837 else
838 return sprintf(buf, "0\n");
839 }
840
841 static ssize_t show_mask(struct device *dev,
842 struct device_attribute *devattr, char *buf)
843 {
844 struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
845 struct abituguru3_data *data = dev_get_drvdata(dev);
846
847 if (data->settings[data->sensors[attr->index].port][0] & attr->nr)
848 return sprintf(buf, "1\n");
849 else
850 return sprintf(buf, "0\n");
851 }
852
853 static ssize_t show_label(struct device *dev,
854 struct device_attribute *devattr, char *buf)
855 {
856 struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
857 struct abituguru3_data *data = dev_get_drvdata(dev);
858
859 return sprintf(buf, "%s\n", data->sensors[attr->index].name);
860 }
861
862 static ssize_t show_name(struct device *dev,
863 struct device_attribute *devattr, char *buf)
864 {
865 return sprintf(buf, "%s\n", ABIT_UGURU3_NAME);
866 }
867
868 /* Sysfs attr templates, the real entries are generated automatically. */
869 static const
870 struct sensor_device_attribute_2 abituguru3_sysfs_templ[3][10] = { {
871 SENSOR_ATTR_2(in%d_input, 0444, show_value, NULL, 0, 0),
872 SENSOR_ATTR_2(in%d_min, 0444, show_value, NULL, 1, 0),
873 SENSOR_ATTR_2(in%d_max, 0444, show_value, NULL, 2, 0),
874 SENSOR_ATTR_2(in%d_min_alarm, 0444, show_alarm, NULL,
875 ABIT_UGURU3_VOLT_LOW_ALARM_FLAG, 0),
876 SENSOR_ATTR_2(in%d_max_alarm, 0444, show_alarm, NULL,
877 ABIT_UGURU3_VOLT_HIGH_ALARM_FLAG, 0),
878 SENSOR_ATTR_2(in%d_beep, 0444, show_mask, NULL,
879 ABIT_UGURU3_BEEP_ENABLE, 0),
880 SENSOR_ATTR_2(in%d_shutdown, 0444, show_mask, NULL,
881 ABIT_UGURU3_SHUTDOWN_ENABLE, 0),
882 SENSOR_ATTR_2(in%d_min_alarm_enable, 0444, show_mask, NULL,
883 ABIT_UGURU3_VOLT_LOW_ALARM_ENABLE, 0),
884 SENSOR_ATTR_2(in%d_max_alarm_enable, 0444, show_mask, NULL,
885 ABIT_UGURU3_VOLT_HIGH_ALARM_ENABLE, 0),
886 SENSOR_ATTR_2(in%d_label, 0444, show_label, NULL, 0, 0)
887 }, {
888 SENSOR_ATTR_2(temp%d_input, 0444, show_value, NULL, 0, 0),
889 SENSOR_ATTR_2(temp%d_max, 0444, show_value, NULL, 1, 0),
890 SENSOR_ATTR_2(temp%d_crit, 0444, show_value, NULL, 2, 0),
891 SENSOR_ATTR_2(temp%d_alarm, 0444, show_alarm, NULL, 0, 0),
892 SENSOR_ATTR_2(temp%d_beep, 0444, show_mask, NULL,
893 ABIT_UGURU3_BEEP_ENABLE, 0),
894 SENSOR_ATTR_2(temp%d_shutdown, 0444, show_mask, NULL,
895 ABIT_UGURU3_SHUTDOWN_ENABLE, 0),
896 SENSOR_ATTR_2(temp%d_alarm_enable, 0444, show_mask, NULL,
897 ABIT_UGURU3_TEMP_HIGH_ALARM_ENABLE, 0),
898 SENSOR_ATTR_2(temp%d_label, 0444, show_label, NULL, 0, 0)
899 }, {
900 SENSOR_ATTR_2(fan%d_input, 0444, show_value, NULL, 0, 0),
901 SENSOR_ATTR_2(fan%d_min, 0444, show_value, NULL, 1, 0),
902 SENSOR_ATTR_2(fan%d_alarm, 0444, show_alarm, NULL, 0, 0),
903 SENSOR_ATTR_2(fan%d_beep, 0444, show_mask, NULL,
904 ABIT_UGURU3_BEEP_ENABLE, 0),
905 SENSOR_ATTR_2(fan%d_shutdown, 0444, show_mask, NULL,
906 ABIT_UGURU3_SHUTDOWN_ENABLE, 0),
907 SENSOR_ATTR_2(fan%d_alarm_enable, 0444, show_mask, NULL,
908 ABIT_UGURU3_FAN_LOW_ALARM_ENABLE, 0),
909 SENSOR_ATTR_2(fan%d_label, 0444, show_label, NULL, 0, 0)
910 } };
911
912 static struct sensor_device_attribute_2 abituguru3_sysfs_attr[] = {
913 SENSOR_ATTR_2(name, 0444, show_name, NULL, 0, 0),
914 };
915
916 static int __devinit abituguru3_probe(struct platform_device *pdev)
917 {
918 const int no_sysfs_attr[3] = { 10, 8, 7 };
919 int sensor_index[3] = { 0, 1, 1 };
920 struct abituguru3_data *data;
921 int i, j, type, used, sysfs_names_free, sysfs_attr_i, res = -ENODEV;
922 char *sysfs_filename;
923 u8 buf[2];
924 u16 id;
925
926 if (!(data = kzalloc(sizeof(struct abituguru3_data), GFP_KERNEL)))
927 return -ENOMEM;
928
929 data->addr = platform_get_resource(pdev, IORESOURCE_IO, 0)->start;
930 mutex_init(&data->update_lock);
931 platform_set_drvdata(pdev, data);
932
933 /* Read the motherboard ID */
934 if ((i = abituguru3_read(data, ABIT_UGURU3_MISC_BANK,
935 ABIT_UGURU3_BOARD_ID, 2, buf)) != 2) {
936 goto abituguru3_probe_error;
937 }
938
939 /* Completely read the uGuru to see if one really is there */
940 if (!abituguru3_update_device(&pdev->dev))
941 goto abituguru3_probe_error;
942
943 /* lookup the ID in our motherboard table */
944 id = ((u16)buf[0] << 8) | (u16)buf[1];
945 for (i = 0; abituguru3_motherboards[i].id; i++)
946 if (abituguru3_motherboards[i].id == id)
947 break;
948 if (!abituguru3_motherboards[i].id) {
949 pr_err("error unknown motherboard ID: %04X. %s\n",
950 (unsigned int)id, report_this);
951 goto abituguru3_probe_error;
952 }
953 data->sensors = abituguru3_motherboards[i].sensors;
954
955 pr_info("found Abit uGuru3, motherboard ID: %04X\n", (unsigned int)id);
956
957 /* Fill the sysfs attr array */
958 sysfs_attr_i = 0;
959 sysfs_filename = data->sysfs_names;
960 sysfs_names_free = ABIT_UGURU3_SYSFS_NAMES_LENGTH;
961 for (i = 0; data->sensors[i].name; i++) {
962 /* Fail safe check, this should never happen! */
963 if (i >= ABIT_UGURU3_MAX_NO_SENSORS) {
964 pr_err("Fatal error motherboard has more sensors then ABIT_UGURU3_MAX_NO_SENSORS. %s %s\n",
965 never_happen, report_this);
966 res = -ENAMETOOLONG;
967 goto abituguru3_probe_error;
968 }
969 type = data->sensors[i].type;
970 for (j = 0; j < no_sysfs_attr[type]; j++) {
971 used = snprintf(sysfs_filename, sysfs_names_free,
972 abituguru3_sysfs_templ[type][j].dev_attr.attr.
973 name, sensor_index[type]) + 1;
974 data->sysfs_attr[sysfs_attr_i] =
975 abituguru3_sysfs_templ[type][j];
976 data->sysfs_attr[sysfs_attr_i].dev_attr.attr.name =
977 sysfs_filename;
978 data->sysfs_attr[sysfs_attr_i].index = i;
979 sysfs_filename += used;
980 sysfs_names_free -= used;
981 sysfs_attr_i++;
982 }
983 sensor_index[type]++;
984 }
985 /* Fail safe check, this should never happen! */
986 if (sysfs_names_free < 0) {
987 pr_err("Fatal error ran out of space for sysfs attr names. %s %s\n",
988 never_happen, report_this);
989 res = -ENAMETOOLONG;
990 goto abituguru3_probe_error;
991 }
992
993 /* Register sysfs hooks */
994 for (i = 0; i < sysfs_attr_i; i++)
995 if (device_create_file(&pdev->dev,
996 &data->sysfs_attr[i].dev_attr))
997 goto abituguru3_probe_error;
998 for (i = 0; i < ARRAY_SIZE(abituguru3_sysfs_attr); i++)
999 if (device_create_file(&pdev->dev,
1000 &abituguru3_sysfs_attr[i].dev_attr))
1001 goto abituguru3_probe_error;
1002
1003 data->hwmon_dev = hwmon_device_register(&pdev->dev);
1004 if (IS_ERR(data->hwmon_dev)) {
1005 res = PTR_ERR(data->hwmon_dev);
1006 goto abituguru3_probe_error;
1007 }
1008
1009 return 0; /* success */
1010
1011 abituguru3_probe_error:
1012 for (i = 0; data->sysfs_attr[i].dev_attr.attr.name; i++)
1013 device_remove_file(&pdev->dev, &data->sysfs_attr[i].dev_attr);
1014 for (i = 0; i < ARRAY_SIZE(abituguru3_sysfs_attr); i++)
1015 device_remove_file(&pdev->dev,
1016 &abituguru3_sysfs_attr[i].dev_attr);
1017 kfree(data);
1018 return res;
1019 }
1020
1021 static int __devexit abituguru3_remove(struct platform_device *pdev)
1022 {
1023 int i;
1024 struct abituguru3_data *data = platform_get_drvdata(pdev);
1025
1026 platform_set_drvdata(pdev, NULL);
1027 hwmon_device_unregister(data->hwmon_dev);
1028 for (i = 0; data->sysfs_attr[i].dev_attr.attr.name; i++)
1029 device_remove_file(&pdev->dev, &data->sysfs_attr[i].dev_attr);
1030 for (i = 0; i < ARRAY_SIZE(abituguru3_sysfs_attr); i++)
1031 device_remove_file(&pdev->dev,
1032 &abituguru3_sysfs_attr[i].dev_attr);
1033 kfree(data);
1034
1035 return 0;
1036 }
1037
1038 static struct abituguru3_data *abituguru3_update_device(struct device *dev)
1039 {
1040 int i;
1041 struct abituguru3_data *data = dev_get_drvdata(dev);
1042
1043 mutex_lock(&data->update_lock);
1044 if (!data->valid || time_after(jiffies, data->last_updated + HZ)) {
1045 /* Clear data->valid while updating */
1046 data->valid = 0;
1047 /* Read alarms */
1048 if (abituguru3_read_increment_offset(data,
1049 ABIT_UGURU3_SETTINGS_BANK,
1050 ABIT_UGURU3_ALARMS_START,
1051 1, data->alarms, 48/8) != (48/8))
1052 goto LEAVE_UPDATE;
1053 /* Read in and temp sensors (3 byte settings / sensor) */
1054 for (i = 0; i < 32; i++) {
1055 if (abituguru3_read(data, ABIT_UGURU3_SENSORS_BANK,
1056 ABIT_UGURU3_VALUES_START + i,
1057 1, &data->value[i]) != 1)
1058 goto LEAVE_UPDATE;
1059 if (abituguru3_read_increment_offset(data,
1060 ABIT_UGURU3_SETTINGS_BANK,
1061 ABIT_UGURU3_SETTINGS_START + i * 3,
1062 1,
1063 data->settings[i], 3) != 3)
1064 goto LEAVE_UPDATE;
1065 }
1066 /* Read temp sensors (2 byte settings / sensor) */
1067 for (i = 0; i < 16; i++) {
1068 if (abituguru3_read(data, ABIT_UGURU3_SENSORS_BANK,
1069 ABIT_UGURU3_VALUES_START + 32 + i,
1070 1, &data->value[32 + i]) != 1)
1071 goto LEAVE_UPDATE;
1072 if (abituguru3_read_increment_offset(data,
1073 ABIT_UGURU3_SETTINGS_BANK,
1074 ABIT_UGURU3_SETTINGS_START + 32 * 3 +
1075 i * 2, 1,
1076 data->settings[32 + i], 2) != 2)
1077 goto LEAVE_UPDATE;
1078 }
1079 data->last_updated = jiffies;
1080 data->valid = 1;
1081 }
1082 LEAVE_UPDATE:
1083 mutex_unlock(&data->update_lock);
1084 if (data->valid)
1085 return data;
1086 else
1087 return NULL;
1088 }
1089
1090 #ifdef CONFIG_PM
1091 static int abituguru3_suspend(struct platform_device *pdev, pm_message_t state)
1092 {
1093 struct abituguru3_data *data = platform_get_drvdata(pdev);
1094 /* make sure all communications with the uguru3 are done and no new
1095 ones are started */
1096 mutex_lock(&data->update_lock);
1097 return 0;
1098 }
1099
1100 static int abituguru3_resume(struct platform_device *pdev)
1101 {
1102 struct abituguru3_data *data = platform_get_drvdata(pdev);
1103 mutex_unlock(&data->update_lock);
1104 return 0;
1105 }
1106 #else
1107 #define abituguru3_suspend NULL
1108 #define abituguru3_resume NULL
1109 #endif /* CONFIG_PM */
1110
1111 static struct platform_driver abituguru3_driver = {
1112 .driver = {
1113 .owner = THIS_MODULE,
1114 .name = ABIT_UGURU3_NAME,
1115 },
1116 .probe = abituguru3_probe,
1117 .remove = __devexit_p(abituguru3_remove),
1118 .suspend = abituguru3_suspend,
1119 .resume = abituguru3_resume
1120 };
1121
1122 static int __init abituguru3_dmi_detect(void)
1123 {
1124 const char *board_vendor, *board_name;
1125 int i, err = (force) ? 1 : -ENODEV;
1126 const char *const *dmi_name;
1127 size_t sublen;
1128
1129 board_vendor = dmi_get_system_info(DMI_BOARD_VENDOR);
1130 if (!board_vendor || strcmp(board_vendor, "http://www.abit.com.tw/"))
1131 return err;
1132
1133 board_name = dmi_get_system_info(DMI_BOARD_NAME);
1134 if (!board_name)
1135 return err;
1136
1137 /* At the moment, we don't care about the part of the vendor
1138 * DMI string contained in brackets. Truncate the string at
1139 * the first occurrence of a bracket. Trim any trailing space
1140 * from the substring.
1141 */
1142 sublen = strcspn(board_name, "(");
1143 while (sublen > 0 && board_name[sublen - 1] == ' ')
1144 sublen--;
1145
1146 for (i = 0; abituguru3_motherboards[i].id; i++) {
1147 dmi_name = abituguru3_motherboards[i].dmi_name;
1148 for ( ; *dmi_name; dmi_name++) {
1149 if (strlen(*dmi_name) != sublen)
1150 continue;
1151 if (!strncasecmp(board_name, *dmi_name, sublen))
1152 return 0;
1153 }
1154 }
1155
1156 /* No match found */
1157 return 1;
1158 }
1159
1160 /* FIXME: Manual detection should die eventually; we need to collect stable
1161 * DMI model names first before we can rely entirely on CONFIG_DMI.
1162 */
1163
1164 static int __init abituguru3_detect(void)
1165 {
1166 /* See if there is an uguru3 there. An idle uGuru3 will hold 0x00 or
1167 0x08 at DATA and 0xAC at CMD. Sometimes the uGuru3 will hold 0x05
1168 or 0x55 at CMD instead, why is unknown. */
1169 u8 data_val = inb_p(ABIT_UGURU3_BASE + ABIT_UGURU3_DATA);
1170 u8 cmd_val = inb_p(ABIT_UGURU3_BASE + ABIT_UGURU3_CMD);
1171 if (((data_val == 0x00) || (data_val == 0x08)) &&
1172 ((cmd_val == 0xAC) || (cmd_val == 0x05) ||
1173 (cmd_val == 0x55)))
1174 return 0;
1175
1176 ABIT_UGURU3_DEBUG("no Abit uGuru3 found, data = 0x%02X, cmd = "
1177 "0x%02X\n", (unsigned int)data_val, (unsigned int)cmd_val);
1178
1179 if (force) {
1180 pr_info("Assuming Abit uGuru3 is present because of \"force\" parameter\n");
1181 return 0;
1182 }
1183
1184 /* No uGuru3 found */
1185 return -ENODEV;
1186 }
1187
1188 static struct platform_device *abituguru3_pdev;
1189
1190 static int __init abituguru3_init(void)
1191 {
1192 struct resource res = { .flags = IORESOURCE_IO };
1193 int err;
1194
1195 /* Attempt DMI detection first */
1196 err = abituguru3_dmi_detect();
1197 if (err < 0)
1198 return err;
1199
1200 /* Fall back to manual detection if there was no exact
1201 * board name match, or force was specified.
1202 */
1203 if (err > 0) {
1204 err = abituguru3_detect();
1205 if (err)
1206 return err;
1207
1208 pr_warn("this motherboard was not detected using DMI. "
1209 "Please send the output of \"dmidecode\" to the abituguru3 maintainer (see MAINTAINERS)\n");
1210 }
1211
1212 err = platform_driver_register(&abituguru3_driver);
1213 if (err)
1214 goto exit;
1215
1216 abituguru3_pdev = platform_device_alloc(ABIT_UGURU3_NAME,
1217 ABIT_UGURU3_BASE);
1218 if (!abituguru3_pdev) {
1219 pr_err("Device allocation failed\n");
1220 err = -ENOMEM;
1221 goto exit_driver_unregister;
1222 }
1223
1224 res.start = ABIT_UGURU3_BASE;
1225 res.end = ABIT_UGURU3_BASE + ABIT_UGURU3_REGION_LENGTH - 1;
1226 res.name = ABIT_UGURU3_NAME;
1227
1228 err = platform_device_add_resources(abituguru3_pdev, &res, 1);
1229 if (err) {
1230 pr_err("Device resource addition failed (%d)\n", err);
1231 goto exit_device_put;
1232 }
1233
1234 err = platform_device_add(abituguru3_pdev);
1235 if (err) {
1236 pr_err("Device addition failed (%d)\n", err);
1237 goto exit_device_put;
1238 }
1239
1240 return 0;
1241
1242 exit_device_put:
1243 platform_device_put(abituguru3_pdev);
1244 exit_driver_unregister:
1245 platform_driver_unregister(&abituguru3_driver);
1246 exit:
1247 return err;
1248 }
1249
1250 static void __exit abituguru3_exit(void)
1251 {
1252 platform_device_unregister(abituguru3_pdev);
1253 platform_driver_unregister(&abituguru3_driver);
1254 }
1255
1256 MODULE_AUTHOR("Hans de Goede <hdegoede@redhat.com>");
1257 MODULE_DESCRIPTION("Abit uGuru3 Sensor device");
1258 MODULE_LICENSE("GPL");
1259
1260 module_init(abituguru3_init);
1261 module_exit(abituguru3_exit);
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