blob: 5f52477504305e9f679e8d74e6cd4a402808c821 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
Jean Delvare5f2dc792010-03-05 22:17:18 +01002 * it87.c - Part of lm_sensors, Linux kernel modules for hardware
3 * monitoring.
4 *
5 * The IT8705F is an LPC-based Super I/O part that contains UARTs, a
6 * parallel port, an IR port, a MIDI port, a floppy controller, etc., in
7 * addition to an Environment Controller (Enhanced Hardware Monitor and
8 * Fan Controller)
9 *
10 * This driver supports only the Environment Controller in the IT8705F and
11 * similar parts. The other devices are supported by different drivers.
12 *
13 * Supports: IT8705F Super I/O chip w/LPC interface
14 * IT8712F Super I/O chip w/LPC interface
15 * IT8716F Super I/O chip w/LPC interface
16 * IT8718F Super I/O chip w/LPC interface
17 * IT8720F Super I/O chip w/LPC interface
Jean Delvare44c1bcd2010-10-28 20:31:51 +020018 * IT8721F Super I/O chip w/LPC interface
Jean Delvare5f2dc792010-03-05 22:17:18 +010019 * IT8726F Super I/O chip w/LPC interface
Jean Delvare44c1bcd2010-10-28 20:31:51 +020020 * IT8758E Super I/O chip w/LPC interface
Jean Delvare5f2dc792010-03-05 22:17:18 +010021 * Sis950 A clone of the IT8705F
22 *
23 * Copyright (C) 2001 Chris Gauthron
24 * Copyright (C) 2005-2010 Jean Delvare <khali@linux-fr.org>
25 *
26 * This program is free software; you can redistribute it and/or modify
27 * it under the terms of the GNU General Public License as published by
28 * the Free Software Foundation; either version 2 of the License, or
29 * (at your option) any later version.
30 *
31 * This program is distributed in the hope that it will be useful,
32 * but WITHOUT ANY WARRANTY; without even the implied warranty of
33 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
34 * GNU General Public License for more details.
35 *
36 * You should have received a copy of the GNU General Public License
37 * along with this program; if not, write to the Free Software
38 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
39 */
Linus Torvalds1da177e2005-04-16 15:20:36 -070040
Joe Perchesa8ca1032011-01-12 21:55:10 +010041#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
42
Linus Torvalds1da177e2005-04-16 15:20:36 -070043#include <linux/module.h>
44#include <linux/init.h>
45#include <linux/slab.h>
46#include <linux/jiffies.h>
corentin.labbeb74f3fd2007-06-13 20:27:36 +020047#include <linux/platform_device.h>
Mark M. Hoffman943b0832005-07-15 21:39:18 -040048#include <linux/hwmon.h>
Jean Delvare303760b2005-07-31 21:52:01 +020049#include <linux/hwmon-sysfs.h>
50#include <linux/hwmon-vid.h>
Mark M. Hoffman943b0832005-07-15 21:39:18 -040051#include <linux/err.h>
Ingo Molnar9a61bf62006-01-18 23:19:26 +010052#include <linux/mutex.h>
Jean Delvare87808be2006-09-24 21:17:13 +020053#include <linux/sysfs.h>
Jean Delvare98dd22c2008-10-09 15:33:58 +020054#include <linux/string.h>
55#include <linux/dmi.h>
Jean Delvareb9acb642009-01-07 16:37:35 +010056#include <linux/acpi.h>
H Hartley Sweeten6055fae2009-09-15 17:18:13 +020057#include <linux/io.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070058
corentin.labbeb74f3fd2007-06-13 20:27:36 +020059#define DRVNAME "it87"
Linus Torvalds1da177e2005-04-16 15:20:36 -070060
Jean Delvare44c1bcd2010-10-28 20:31:51 +020061enum chips { it87, it8712, it8716, it8718, it8720, it8721 };
Linus Torvalds1da177e2005-04-16 15:20:36 -070062
Jean Delvare67b671b2007-12-06 23:13:42 +010063static unsigned short force_id;
64module_param(force_id, ushort, 0);
65MODULE_PARM_DESC(force_id, "Override the detected device ID");
66
corentin.labbeb74f3fd2007-06-13 20:27:36 +020067static struct platform_device *pdev;
68
Linus Torvalds1da177e2005-04-16 15:20:36 -070069#define REG 0x2e /* The register to read/write */
70#define DEV 0x07 /* Register: Logical device select */
71#define VAL 0x2f /* The value to read/write */
72#define PME 0x04 /* The device with the fan registers in it */
Jean-Marc Spaggiarib4da93e2009-01-07 16:37:32 +010073
74/* The device with the IT8718F/IT8720F VID value in it */
75#define GPIO 0x07
76
Linus Torvalds1da177e2005-04-16 15:20:36 -070077#define DEVID 0x20 /* Register: Device ID */
78#define DEVREV 0x22 /* Register: Device Revision */
79
Nat Gurumoorthy5b0380c2011-05-25 20:43:33 +020080static inline int superio_inb(int reg)
Linus Torvalds1da177e2005-04-16 15:20:36 -070081{
82 outb(reg, REG);
83 return inb(VAL);
84}
85
Nat Gurumoorthy5b0380c2011-05-25 20:43:33 +020086static inline void superio_outb(int reg, int val)
Jean Delvare436cad22010-07-09 16:22:48 +020087{
88 outb(reg, REG);
89 outb(val, VAL);
90}
91
Linus Torvalds1da177e2005-04-16 15:20:36 -070092static int superio_inw(int reg)
93{
94 int val;
95 outb(reg++, REG);
96 val = inb(VAL) << 8;
97 outb(reg, REG);
98 val |= inb(VAL);
99 return val;
100}
101
Nat Gurumoorthy5b0380c2011-05-25 20:43:33 +0200102static inline void superio_select(int ldn)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700103{
104 outb(DEV, REG);
Jean Delvare87673dd2006-08-28 14:37:19 +0200105 outb(ldn, VAL);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700106}
107
Nat Gurumoorthy5b0380c2011-05-25 20:43:33 +0200108static inline int superio_enter(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700109{
Nat Gurumoorthy5b0380c2011-05-25 20:43:33 +0200110 /*
111 * Try to reserve REG and REG + 1 for exclusive access.
112 */
113 if (!request_muxed_region(REG, 2, DRVNAME))
114 return -EBUSY;
115
Linus Torvalds1da177e2005-04-16 15:20:36 -0700116 outb(0x87, REG);
117 outb(0x01, REG);
118 outb(0x55, REG);
119 outb(0x55, REG);
Nat Gurumoorthy5b0380c2011-05-25 20:43:33 +0200120 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700121}
122
Nat Gurumoorthy5b0380c2011-05-25 20:43:33 +0200123static inline void superio_exit(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700124{
125 outb(0x02, REG);
126 outb(0x02, VAL);
Nat Gurumoorthy5b0380c2011-05-25 20:43:33 +0200127 release_region(REG, 2);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700128}
129
Jean Delvare87673dd2006-08-28 14:37:19 +0200130/* Logical device 4 registers */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700131#define IT8712F_DEVID 0x8712
132#define IT8705F_DEVID 0x8705
Jean Delvare17d648b2006-08-28 14:23:46 +0200133#define IT8716F_DEVID 0x8716
Jean Delvare87673dd2006-08-28 14:37:19 +0200134#define IT8718F_DEVID 0x8718
Jean-Marc Spaggiarib4da93e2009-01-07 16:37:32 +0100135#define IT8720F_DEVID 0x8720
Jean Delvare44c1bcd2010-10-28 20:31:51 +0200136#define IT8721F_DEVID 0x8721
Rudolf Marek08a8f6e2007-06-09 10:11:16 -0400137#define IT8726F_DEVID 0x8726
Linus Torvalds1da177e2005-04-16 15:20:36 -0700138#define IT87_ACT_REG 0x30
139#define IT87_BASE_REG 0x60
140
Jean Delvare87673dd2006-08-28 14:37:19 +0200141/* Logical device 7 registers (IT8712F and later) */
Jean Delvare895ff262009-12-09 20:35:47 +0100142#define IT87_SIO_GPIO3_REG 0x27
Jean Delvare591ec652009-12-09 20:35:48 +0100143#define IT87_SIO_GPIO5_REG 0x29
Jean Delvare87673dd2006-08-28 14:37:19 +0200144#define IT87_SIO_PINX2_REG 0x2c /* Pin selection */
145#define IT87_SIO_VID_REG 0xfc /* VID value */
Jean Delvared9b327c2010-03-05 22:17:17 +0100146#define IT87_SIO_BEEP_PIN_REG 0xf6 /* Beep pin mapping */
Jean Delvare87673dd2006-08-28 14:37:19 +0200147
Linus Torvalds1da177e2005-04-16 15:20:36 -0700148/* Update battery voltage after every reading if true */
149static int update_vbat;
150
151/* Not all BIOSes properly configure the PWM registers */
152static int fix_pwm_polarity;
153
Linus Torvalds1da177e2005-04-16 15:20:36 -0700154/* Many IT87 constants specified below */
155
156/* Length of ISA address segment */
157#define IT87_EXTENT 8
158
Bjorn Helgaas87b4b662008-01-22 07:21:03 -0500159/* Length of ISA address segment for Environmental Controller */
160#define IT87_EC_EXTENT 2
161
162/* Offset of EC registers from ISA base address */
163#define IT87_EC_OFFSET 5
164
165/* Where are the ISA address/data registers relative to the EC base address */
166#define IT87_ADDR_REG_OFFSET 0
167#define IT87_DATA_REG_OFFSET 1
Linus Torvalds1da177e2005-04-16 15:20:36 -0700168
169/*----- The IT87 registers -----*/
170
171#define IT87_REG_CONFIG 0x00
172
173#define IT87_REG_ALARM1 0x01
174#define IT87_REG_ALARM2 0x02
175#define IT87_REG_ALARM3 0x03
176
Jean-Marc Spaggiarib4da93e2009-01-07 16:37:32 +0100177/* The IT8718F and IT8720F have the VID value in a different register, in
178 Super-I/O configuration space. */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700179#define IT87_REG_VID 0x0a
Andrew Paprocki04751692008-08-06 22:41:06 +0200180/* The IT8705F and IT8712F earlier than revision 0x08 use register 0x0b
181 for fan divisors. Later IT8712F revisions must use 16-bit tachometer
182 mode. */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700183#define IT87_REG_FAN_DIV 0x0b
Jean Delvare17d648b2006-08-28 14:23:46 +0200184#define IT87_REG_FAN_16BIT 0x0c
Linus Torvalds1da177e2005-04-16 15:20:36 -0700185
186/* Monitors: 9 voltage (0 to 7, battery), 3 temp (1 to 3), 3 fan (1 to 3) */
187
Jean Delvarec7f1f712007-09-03 17:11:46 +0200188static const u8 IT87_REG_FAN[] = { 0x0d, 0x0e, 0x0f, 0x80, 0x82 };
189static const u8 IT87_REG_FAN_MIN[] = { 0x10, 0x11, 0x12, 0x84, 0x86 };
190static const u8 IT87_REG_FANX[] = { 0x18, 0x19, 0x1a, 0x81, 0x83 };
191static const u8 IT87_REG_FANX_MIN[] = { 0x1b, 0x1c, 0x1d, 0x85, 0x87 };
Linus Torvalds1da177e2005-04-16 15:20:36 -0700192#define IT87_REG_FAN_MAIN_CTRL 0x13
193#define IT87_REG_FAN_CTL 0x14
194#define IT87_REG_PWM(nr) (0x15 + (nr))
Jean Delvare6229cdb2010-12-08 16:27:22 +0100195#define IT87_REG_PWM_DUTY(nr) (0x63 + (nr) * 8)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700196
197#define IT87_REG_VIN(nr) (0x20 + (nr))
198#define IT87_REG_TEMP(nr) (0x29 + (nr))
199
200#define IT87_REG_VIN_MAX(nr) (0x30 + (nr) * 2)
201#define IT87_REG_VIN_MIN(nr) (0x31 + (nr) * 2)
202#define IT87_REG_TEMP_HIGH(nr) (0x40 + (nr) * 2)
203#define IT87_REG_TEMP_LOW(nr) (0x41 + (nr) * 2)
204
Linus Torvalds1da177e2005-04-16 15:20:36 -0700205#define IT87_REG_VIN_ENABLE 0x50
206#define IT87_REG_TEMP_ENABLE 0x51
Jean Delvared9b327c2010-03-05 22:17:17 +0100207#define IT87_REG_BEEP_ENABLE 0x5c
Linus Torvalds1da177e2005-04-16 15:20:36 -0700208
209#define IT87_REG_CHIPID 0x58
210
Jean Delvare4f3f51b2010-03-05 22:17:21 +0100211#define IT87_REG_AUTO_TEMP(nr, i) (0x60 + (nr) * 8 + (i))
212#define IT87_REG_AUTO_PWM(nr, i) (0x65 + (nr) * 8 + (i))
213
Linus Torvalds1da177e2005-04-16 15:20:36 -0700214
corentin.labbeb74f3fd2007-06-13 20:27:36 +0200215struct it87_sio_data {
216 enum chips type;
217 /* Values read from Super-I/O config space */
Andrew Paprocki04751692008-08-06 22:41:06 +0200218 u8 revision;
corentin.labbeb74f3fd2007-06-13 20:27:36 +0200219 u8 vid_value;
Jean Delvared9b327c2010-03-05 22:17:17 +0100220 u8 beep_pin;
Jean Delvare738e5e02010-08-14 21:08:50 +0200221 u8 internal; /* Internal sensors can be labeled */
Jean Delvare591ec652009-12-09 20:35:48 +0100222 /* Features skipped based on config or DMI */
Jean Delvare895ff262009-12-09 20:35:47 +0100223 u8 skip_vid;
Jean Delvare591ec652009-12-09 20:35:48 +0100224 u8 skip_fan;
Jean Delvare98dd22c2008-10-09 15:33:58 +0200225 u8 skip_pwm;
corentin.labbeb74f3fd2007-06-13 20:27:36 +0200226};
227
Jean Delvareed6bafb2007-02-14 21:15:03 +0100228/* For each registered chip, we need to keep some data in memory.
229 The structure is dynamically allocated. */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700230struct it87_data {
Tony Jones1beeffe2007-08-20 13:46:20 -0700231 struct device *hwmon_dev;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700232 enum chips type;
Andrew Paprocki04751692008-08-06 22:41:06 +0200233 u8 revision;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700234
corentin.labbeb74f3fd2007-06-13 20:27:36 +0200235 unsigned short addr;
236 const char *name;
Ingo Molnar9a61bf62006-01-18 23:19:26 +0100237 struct mutex update_lock;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700238 char valid; /* !=0 if following fields are valid */
239 unsigned long last_updated; /* In jiffies */
240
Jean Delvare44c1bcd2010-10-28 20:31:51 +0200241 u16 in_scaled; /* Internal voltage sensors are scaled */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700242 u8 in[9]; /* Register value */
Jean Delvare3543a532006-08-28 14:27:25 +0200243 u8 in_max[8]; /* Register value */
244 u8 in_min[8]; /* Register value */
Jean Delvare9060f8b2006-08-28 14:24:17 +0200245 u8 has_fan; /* Bitfield, fans enabled */
Jean Delvarec7f1f712007-09-03 17:11:46 +0200246 u16 fan[5]; /* Register values, possibly combined */
247 u16 fan_min[5]; /* Register values, possibly combined */
Jean Delvaree267d252009-03-12 13:36:39 +0100248 s8 temp[3]; /* Register value */
249 s8 temp_high[3]; /* Register value */
250 s8 temp_low[3]; /* Register value */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700251 u8 sensor; /* Register value */
252 u8 fan_div[3]; /* Register encoding, shifted right */
253 u8 vid; /* Register encoding, combined */
Jean Delvarea7be58a2005-12-18 16:40:14 +0100254 u8 vrm;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700255 u32 alarms; /* Register encoding, combined */
Jean Delvared9b327c2010-03-05 22:17:17 +0100256 u8 beeps; /* Register encoding */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700257 u8 fan_main_ctrl; /* Register value */
Jean Delvaref8d0c192007-02-14 21:15:02 +0100258 u8 fan_ctl; /* Register value */
Jean Delvareb99883d2010-03-05 22:17:15 +0100259
Jean Delvare6229cdb2010-12-08 16:27:22 +0100260 /* The following 3 arrays correspond to the same registers up to
261 * the IT8720F. The meaning of bits 6-0 depends on the value of bit
262 * 7, and we want to preserve settings on mode changes, so we have
263 * to track all values separately.
264 * Starting with the IT8721F, the manual PWM duty cycles are stored
265 * in separate registers (8-bit values), so the separate tracking
266 * is no longer needed, but it is still done to keep the driver
267 * simple. */
Jean Delvareb99883d2010-03-05 22:17:15 +0100268 u8 pwm_ctrl[3]; /* Register value */
Jean Delvare6229cdb2010-12-08 16:27:22 +0100269 u8 pwm_duty[3]; /* Manual PWM value set by user */
Jean Delvareb99883d2010-03-05 22:17:15 +0100270 u8 pwm_temp_map[3]; /* PWM to temp. chan. mapping (bits 1-0) */
Jean Delvare4f3f51b2010-03-05 22:17:21 +0100271
272 /* Automatic fan speed control registers */
273 u8 auto_pwm[3][4]; /* [nr][3] is hard-coded */
274 s8 auto_temp[3][5]; /* [nr][0] is point1_temp_hyst */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700275};
276
Jean Delvare44c1bcd2010-10-28 20:31:51 +0200277static u8 in_to_reg(const struct it87_data *data, int nr, long val)
278{
279 long lsb;
280
281 if (data->type == it8721) {
282 if (data->in_scaled & (1 << nr))
283 lsb = 24;
284 else
285 lsb = 12;
286 } else
287 lsb = 16;
288
289 val = DIV_ROUND_CLOSEST(val, lsb);
290 return SENSORS_LIMIT(val, 0, 255);
291}
292
293static int in_from_reg(const struct it87_data *data, int nr, int val)
294{
295 if (data->type == it8721) {
296 if (data->in_scaled & (1 << nr))
297 return val * 24;
298 else
299 return val * 12;
300 } else
301 return val * 16;
302}
Jean Delvare0df64542010-10-28 20:31:51 +0200303
304static inline u8 FAN_TO_REG(long rpm, int div)
305{
306 if (rpm == 0)
307 return 255;
308 rpm = SENSORS_LIMIT(rpm, 1, 1000000);
309 return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1,
310 254);
311}
312
313static inline u16 FAN16_TO_REG(long rpm)
314{
315 if (rpm == 0)
316 return 0xffff;
317 return SENSORS_LIMIT((1350000 + rpm) / (rpm * 2), 1, 0xfffe);
318}
319
320#define FAN_FROM_REG(val, div) ((val) == 0 ? -1 : (val) == 255 ? 0 : \
321 1350000 / ((val) * (div)))
322/* The divider is fixed to 2 in 16-bit mode */
323#define FAN16_FROM_REG(val) ((val) == 0 ? -1 : (val) == 0xffff ? 0 : \
324 1350000 / ((val) * 2))
325
326#define TEMP_TO_REG(val) (SENSORS_LIMIT(((val) < 0 ? (((val) - 500) / 1000) : \
327 ((val) + 500) / 1000), -128, 127))
328#define TEMP_FROM_REG(val) ((val) * 1000)
329
Jean Delvare44c1bcd2010-10-28 20:31:51 +0200330static u8 pwm_to_reg(const struct it87_data *data, long val)
331{
332 if (data->type == it8721)
333 return val;
334 else
335 return val >> 1;
336}
337
338static int pwm_from_reg(const struct it87_data *data, u8 reg)
339{
340 if (data->type == it8721)
341 return reg;
342 else
343 return (reg & 0x7f) << 1;
344}
345
Jean Delvare0df64542010-10-28 20:31:51 +0200346
347static int DIV_TO_REG(int val)
348{
349 int answer = 0;
350 while (answer < 7 && (val >>= 1))
351 answer++;
352 return answer;
353}
354#define DIV_FROM_REG(val) (1 << (val))
355
356static const unsigned int pwm_freq[8] = {
357 48000000 / 128,
358 24000000 / 128,
359 12000000 / 128,
360 8000000 / 128,
361 6000000 / 128,
362 3000000 / 128,
363 1500000 / 128,
364 750000 / 128,
365};
366
Andrew Paprocki04751692008-08-06 22:41:06 +0200367static inline int has_16bit_fans(const struct it87_data *data)
368{
Andrew Paprocki816d8c62008-08-06 22:41:06 +0200369 /* IT8705F Datasheet 0.4.1, 3h == Version G.
Andrew Paprocki859b9ef2008-09-20 10:25:19 +0200370 IT8712F Datasheet 0.9.1, section 8.3.5 indicates 8h == Version J.
Andrew Paprocki816d8c62008-08-06 22:41:06 +0200371 These are the first revisions with 16bit tachometer support. */
372 return (data->type == it87 && data->revision >= 0x03)
Andrew Paprocki859b9ef2008-09-20 10:25:19 +0200373 || (data->type == it8712 && data->revision >= 0x08)
Andrew Paprocki04751692008-08-06 22:41:06 +0200374 || data->type == it8716
Jean-Marc Spaggiarib4da93e2009-01-07 16:37:32 +0100375 || data->type == it8718
Jean Delvare44c1bcd2010-10-28 20:31:51 +0200376 || data->type == it8720
377 || data->type == it8721;
Andrew Paprocki04751692008-08-06 22:41:06 +0200378}
Linus Torvalds1da177e2005-04-16 15:20:36 -0700379
Jean Delvare4f3f51b2010-03-05 22:17:21 +0100380static inline int has_old_autopwm(const struct it87_data *data)
381{
382 /* The old automatic fan speed control interface is implemented
383 by IT8705F chips up to revision F and IT8712F chips up to
384 revision G. */
385 return (data->type == it87 && data->revision < 0x03)
386 || (data->type == it8712 && data->revision < 0x08);
387}
388
corentin.labbeb74f3fd2007-06-13 20:27:36 +0200389static int it87_probe(struct platform_device *pdev);
Jean Delvared0546122007-07-22 12:09:48 +0200390static int __devexit it87_remove(struct platform_device *pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700391
corentin.labbeb74f3fd2007-06-13 20:27:36 +0200392static int it87_read_value(struct it87_data *data, u8 reg);
393static void it87_write_value(struct it87_data *data, u8 reg, u8 value);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700394static struct it87_data *it87_update_device(struct device *dev);
corentin.labbeb74f3fd2007-06-13 20:27:36 +0200395static int it87_check_pwm(struct device *dev);
396static void it87_init_device(struct platform_device *pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700397
398
corentin.labbeb74f3fd2007-06-13 20:27:36 +0200399static struct platform_driver it87_driver = {
Laurent Riffardcdaf7932005-11-26 20:37:41 +0100400 .driver = {
Jean Delvare87218842006-09-03 22:36:14 +0200401 .owner = THIS_MODULE,
corentin.labbeb74f3fd2007-06-13 20:27:36 +0200402 .name = DRVNAME,
Laurent Riffardcdaf7932005-11-26 20:37:41 +0100403 },
corentin.labbeb74f3fd2007-06-13 20:27:36 +0200404 .probe = it87_probe,
405 .remove = __devexit_p(it87_remove),
Jean Delvarefde09502005-07-19 23:51:07 +0200406};
407
Jean Delvare20ad93d2005-06-05 11:53:25 +0200408static ssize_t show_in(struct device *dev, struct device_attribute *attr,
409 char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700410{
Jean Delvare20ad93d2005-06-05 11:53:25 +0200411 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
412 int nr = sensor_attr->index;
413
Linus Torvalds1da177e2005-04-16 15:20:36 -0700414 struct it87_data *data = it87_update_device(dev);
Jean Delvare44c1bcd2010-10-28 20:31:51 +0200415 return sprintf(buf, "%d\n", in_from_reg(data, nr, data->in[nr]));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700416}
417
Jean Delvare20ad93d2005-06-05 11:53:25 +0200418static ssize_t show_in_min(struct device *dev, struct device_attribute *attr,
419 char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700420{
Jean Delvare20ad93d2005-06-05 11:53:25 +0200421 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
422 int nr = sensor_attr->index;
423
Linus Torvalds1da177e2005-04-16 15:20:36 -0700424 struct it87_data *data = it87_update_device(dev);
Jean Delvare44c1bcd2010-10-28 20:31:51 +0200425 return sprintf(buf, "%d\n", in_from_reg(data, nr, data->in_min[nr]));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700426}
427
Jean Delvare20ad93d2005-06-05 11:53:25 +0200428static ssize_t show_in_max(struct device *dev, struct device_attribute *attr,
429 char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700430{
Jean Delvare20ad93d2005-06-05 11:53:25 +0200431 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
432 int nr = sensor_attr->index;
433
Linus Torvalds1da177e2005-04-16 15:20:36 -0700434 struct it87_data *data = it87_update_device(dev);
Jean Delvare44c1bcd2010-10-28 20:31:51 +0200435 return sprintf(buf, "%d\n", in_from_reg(data, nr, data->in_max[nr]));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700436}
437
Jean Delvare20ad93d2005-06-05 11:53:25 +0200438static ssize_t set_in_min(struct device *dev, struct device_attribute *attr,
439 const char *buf, size_t count)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700440{
Jean Delvare20ad93d2005-06-05 11:53:25 +0200441 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
442 int nr = sensor_attr->index;
443
corentin.labbeb74f3fd2007-06-13 20:27:36 +0200444 struct it87_data *data = dev_get_drvdata(dev);
Jean Delvaref5f64502010-03-05 22:17:19 +0100445 unsigned long val;
446
447 if (strict_strtoul(buf, 10, &val) < 0)
448 return -EINVAL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700449
Ingo Molnar9a61bf62006-01-18 23:19:26 +0100450 mutex_lock(&data->update_lock);
Jean Delvare44c1bcd2010-10-28 20:31:51 +0200451 data->in_min[nr] = in_to_reg(data, nr, val);
corentin.labbeb74f3fd2007-06-13 20:27:36 +0200452 it87_write_value(data, IT87_REG_VIN_MIN(nr),
Linus Torvalds1da177e2005-04-16 15:20:36 -0700453 data->in_min[nr]);
Ingo Molnar9a61bf62006-01-18 23:19:26 +0100454 mutex_unlock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700455 return count;
456}
Jean Delvare20ad93d2005-06-05 11:53:25 +0200457static ssize_t set_in_max(struct device *dev, struct device_attribute *attr,
458 const char *buf, size_t count)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700459{
Jean Delvare20ad93d2005-06-05 11:53:25 +0200460 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
461 int nr = sensor_attr->index;
462
corentin.labbeb74f3fd2007-06-13 20:27:36 +0200463 struct it87_data *data = dev_get_drvdata(dev);
Jean Delvaref5f64502010-03-05 22:17:19 +0100464 unsigned long val;
465
466 if (strict_strtoul(buf, 10, &val) < 0)
467 return -EINVAL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700468
Ingo Molnar9a61bf62006-01-18 23:19:26 +0100469 mutex_lock(&data->update_lock);
Jean Delvare44c1bcd2010-10-28 20:31:51 +0200470 data->in_max[nr] = in_to_reg(data, nr, val);
corentin.labbeb74f3fd2007-06-13 20:27:36 +0200471 it87_write_value(data, IT87_REG_VIN_MAX(nr),
Linus Torvalds1da177e2005-04-16 15:20:36 -0700472 data->in_max[nr]);
Ingo Molnar9a61bf62006-01-18 23:19:26 +0100473 mutex_unlock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700474 return count;
475}
476
477#define show_in_offset(offset) \
Jean Delvare20ad93d2005-06-05 11:53:25 +0200478static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, \
479 show_in, NULL, offset);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700480
481#define limit_in_offset(offset) \
Jean Delvare20ad93d2005-06-05 11:53:25 +0200482static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \
483 show_in_min, set_in_min, offset); \
484static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \
485 show_in_max, set_in_max, offset);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700486
487show_in_offset(0);
488limit_in_offset(0);
489show_in_offset(1);
490limit_in_offset(1);
491show_in_offset(2);
492limit_in_offset(2);
493show_in_offset(3);
494limit_in_offset(3);
495show_in_offset(4);
496limit_in_offset(4);
497show_in_offset(5);
498limit_in_offset(5);
499show_in_offset(6);
500limit_in_offset(6);
501show_in_offset(7);
502limit_in_offset(7);
503show_in_offset(8);
504
505/* 3 temperatures */
Jean Delvare20ad93d2005-06-05 11:53:25 +0200506static ssize_t show_temp(struct device *dev, struct device_attribute *attr,
507 char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700508{
Jean Delvare20ad93d2005-06-05 11:53:25 +0200509 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
510 int nr = sensor_attr->index;
511
Linus Torvalds1da177e2005-04-16 15:20:36 -0700512 struct it87_data *data = it87_update_device(dev);
513 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[nr]));
514}
Jean Delvare20ad93d2005-06-05 11:53:25 +0200515static ssize_t show_temp_max(struct device *dev, struct device_attribute *attr,
516 char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700517{
Jean Delvare20ad93d2005-06-05 11:53:25 +0200518 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
519 int nr = sensor_attr->index;
520
Linus Torvalds1da177e2005-04-16 15:20:36 -0700521 struct it87_data *data = it87_update_device(dev);
522 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_high[nr]));
523}
Jean Delvare20ad93d2005-06-05 11:53:25 +0200524static ssize_t show_temp_min(struct device *dev, struct device_attribute *attr,
525 char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700526{
Jean Delvare20ad93d2005-06-05 11:53:25 +0200527 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
528 int nr = sensor_attr->index;
529
Linus Torvalds1da177e2005-04-16 15:20:36 -0700530 struct it87_data *data = it87_update_device(dev);
531 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_low[nr]));
532}
Jean Delvare20ad93d2005-06-05 11:53:25 +0200533static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,
534 const char *buf, size_t count)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700535{
Jean Delvare20ad93d2005-06-05 11:53:25 +0200536 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
537 int nr = sensor_attr->index;
538
corentin.labbeb74f3fd2007-06-13 20:27:36 +0200539 struct it87_data *data = dev_get_drvdata(dev);
Jean Delvaref5f64502010-03-05 22:17:19 +0100540 long val;
541
542 if (strict_strtol(buf, 10, &val) < 0)
543 return -EINVAL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700544
Ingo Molnar9a61bf62006-01-18 23:19:26 +0100545 mutex_lock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700546 data->temp_high[nr] = TEMP_TO_REG(val);
corentin.labbeb74f3fd2007-06-13 20:27:36 +0200547 it87_write_value(data, IT87_REG_TEMP_HIGH(nr), data->temp_high[nr]);
Ingo Molnar9a61bf62006-01-18 23:19:26 +0100548 mutex_unlock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700549 return count;
550}
Jean Delvare20ad93d2005-06-05 11:53:25 +0200551static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr,
552 const char *buf, size_t count)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700553{
Jean Delvare20ad93d2005-06-05 11:53:25 +0200554 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
555 int nr = sensor_attr->index;
556
corentin.labbeb74f3fd2007-06-13 20:27:36 +0200557 struct it87_data *data = dev_get_drvdata(dev);
Jean Delvaref5f64502010-03-05 22:17:19 +0100558 long val;
559
560 if (strict_strtol(buf, 10, &val) < 0)
561 return -EINVAL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700562
Ingo Molnar9a61bf62006-01-18 23:19:26 +0100563 mutex_lock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700564 data->temp_low[nr] = TEMP_TO_REG(val);
corentin.labbeb74f3fd2007-06-13 20:27:36 +0200565 it87_write_value(data, IT87_REG_TEMP_LOW(nr), data->temp_low[nr]);
Ingo Molnar9a61bf62006-01-18 23:19:26 +0100566 mutex_unlock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700567 return count;
568}
569#define show_temp_offset(offset) \
Jean Delvare20ad93d2005-06-05 11:53:25 +0200570static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, \
571 show_temp, NULL, offset - 1); \
572static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \
573 show_temp_max, set_temp_max, offset - 1); \
574static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR, \
575 show_temp_min, set_temp_min, offset - 1);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700576
577show_temp_offset(1);
578show_temp_offset(2);
579show_temp_offset(3);
580
Jean Delvare20ad93d2005-06-05 11:53:25 +0200581static ssize_t show_sensor(struct device *dev, struct device_attribute *attr,
582 char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700583{
Jean Delvare20ad93d2005-06-05 11:53:25 +0200584 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
585 int nr = sensor_attr->index;
586
Linus Torvalds1da177e2005-04-16 15:20:36 -0700587 struct it87_data *data = it87_update_device(dev);
Jean Delvare5f2dc792010-03-05 22:17:18 +0100588 u8 reg = data->sensor; /* In case the value is updated while
589 we use it */
590
Linus Torvalds1da177e2005-04-16 15:20:36 -0700591 if (reg & (1 << nr))
592 return sprintf(buf, "3\n"); /* thermal diode */
593 if (reg & (8 << nr))
Jean Delvare4ed10772008-10-17 17:51:16 +0200594 return sprintf(buf, "4\n"); /* thermistor */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700595 return sprintf(buf, "0\n"); /* disabled */
596}
Jean Delvare20ad93d2005-06-05 11:53:25 +0200597static ssize_t set_sensor(struct device *dev, struct device_attribute *attr,
598 const char *buf, size_t count)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700599{
Jean Delvare20ad93d2005-06-05 11:53:25 +0200600 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
601 int nr = sensor_attr->index;
602
corentin.labbeb74f3fd2007-06-13 20:27:36 +0200603 struct it87_data *data = dev_get_drvdata(dev);
Jean Delvaref5f64502010-03-05 22:17:19 +0100604 long val;
Jean Delvare8acf07c2010-04-14 16:14:09 +0200605 u8 reg;
Jean Delvaref5f64502010-03-05 22:17:19 +0100606
607 if (strict_strtol(buf, 10, &val) < 0)
608 return -EINVAL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700609
Jean Delvare8acf07c2010-04-14 16:14:09 +0200610 reg = it87_read_value(data, IT87_REG_TEMP_ENABLE);
611 reg &= ~(1 << nr);
612 reg &= ~(8 << nr);
Jean Delvare4ed10772008-10-17 17:51:16 +0200613 if (val == 2) { /* backwards compatibility */
614 dev_warn(dev, "Sensor type 2 is deprecated, please use 4 "
615 "instead\n");
616 val = 4;
617 }
618 /* 3 = thermal diode; 4 = thermistor; 0 = disabled */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700619 if (val == 3)
Jean Delvare8acf07c2010-04-14 16:14:09 +0200620 reg |= 1 << nr;
Jean Delvare4ed10772008-10-17 17:51:16 +0200621 else if (val == 4)
Jean Delvare8acf07c2010-04-14 16:14:09 +0200622 reg |= 8 << nr;
623 else if (val != 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700624 return -EINVAL;
Jean Delvare8acf07c2010-04-14 16:14:09 +0200625
626 mutex_lock(&data->update_lock);
627 data->sensor = reg;
corentin.labbeb74f3fd2007-06-13 20:27:36 +0200628 it87_write_value(data, IT87_REG_TEMP_ENABLE, data->sensor);
Jean Delvare2b3d1d82010-04-14 16:14:10 +0200629 data->valid = 0; /* Force cache refresh */
Ingo Molnar9a61bf62006-01-18 23:19:26 +0100630 mutex_unlock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700631 return count;
632}
633#define show_sensor_offset(offset) \
Jean Delvare20ad93d2005-06-05 11:53:25 +0200634static SENSOR_DEVICE_ATTR(temp##offset##_type, S_IRUGO | S_IWUSR, \
635 show_sensor, set_sensor, offset - 1);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700636
637show_sensor_offset(1);
638show_sensor_offset(2);
639show_sensor_offset(3);
640
641/* 3 Fans */
Jean Delvareb99883d2010-03-05 22:17:15 +0100642
643static int pwm_mode(const struct it87_data *data, int nr)
644{
645 int ctrl = data->fan_main_ctrl & (1 << nr);
646
647 if (ctrl == 0) /* Full speed */
648 return 0;
649 if (data->pwm_ctrl[nr] & 0x80) /* Automatic mode */
650 return 2;
651 else /* Manual mode */
652 return 1;
653}
654
Jean Delvare20ad93d2005-06-05 11:53:25 +0200655static ssize_t show_fan(struct device *dev, struct device_attribute *attr,
656 char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700657{
Jean Delvare20ad93d2005-06-05 11:53:25 +0200658 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
659 int nr = sensor_attr->index;
660
Linus Torvalds1da177e2005-04-16 15:20:36 -0700661 struct it87_data *data = it87_update_device(dev);
Jean Delvare5f2dc792010-03-05 22:17:18 +0100662 return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[nr],
Linus Torvalds1da177e2005-04-16 15:20:36 -0700663 DIV_FROM_REG(data->fan_div[nr])));
664}
Jean Delvare20ad93d2005-06-05 11:53:25 +0200665static ssize_t show_fan_min(struct device *dev, struct device_attribute *attr,
666 char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700667{
Jean Delvare20ad93d2005-06-05 11:53:25 +0200668 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
669 int nr = sensor_attr->index;
670
Linus Torvalds1da177e2005-04-16 15:20:36 -0700671 struct it87_data *data = it87_update_device(dev);
Jean Delvare5f2dc792010-03-05 22:17:18 +0100672 return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[nr],
673 DIV_FROM_REG(data->fan_div[nr])));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700674}
Jean Delvare20ad93d2005-06-05 11:53:25 +0200675static ssize_t show_fan_div(struct device *dev, struct device_attribute *attr,
676 char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700677{
Jean Delvare20ad93d2005-06-05 11:53:25 +0200678 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
679 int nr = sensor_attr->index;
680
Linus Torvalds1da177e2005-04-16 15:20:36 -0700681 struct it87_data *data = it87_update_device(dev);
682 return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[nr]));
683}
Jean Delvare5f2dc792010-03-05 22:17:18 +0100684static ssize_t show_pwm_enable(struct device *dev,
685 struct device_attribute *attr, char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700686{
Jean Delvare20ad93d2005-06-05 11:53:25 +0200687 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
688 int nr = sensor_attr->index;
689
Linus Torvalds1da177e2005-04-16 15:20:36 -0700690 struct it87_data *data = it87_update_device(dev);
Jean Delvareb99883d2010-03-05 22:17:15 +0100691 return sprintf(buf, "%d\n", pwm_mode(data, nr));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700692}
Jean Delvare20ad93d2005-06-05 11:53:25 +0200693static ssize_t show_pwm(struct device *dev, struct device_attribute *attr,
694 char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700695{
Jean Delvare20ad93d2005-06-05 11:53:25 +0200696 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
697 int nr = sensor_attr->index;
698
Linus Torvalds1da177e2005-04-16 15:20:36 -0700699 struct it87_data *data = it87_update_device(dev);
Jean Delvare44c1bcd2010-10-28 20:31:51 +0200700 return sprintf(buf, "%d\n",
701 pwm_from_reg(data, data->pwm_duty[nr]));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700702}
Jean Delvaref8d0c192007-02-14 21:15:02 +0100703static ssize_t show_pwm_freq(struct device *dev, struct device_attribute *attr,
704 char *buf)
705{
706 struct it87_data *data = it87_update_device(dev);
707 int index = (data->fan_ctl >> 4) & 0x07;
708
709 return sprintf(buf, "%u\n", pwm_freq[index]);
710}
Jean Delvare20ad93d2005-06-05 11:53:25 +0200711static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr,
712 const char *buf, size_t count)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700713{
Jean Delvare20ad93d2005-06-05 11:53:25 +0200714 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
715 int nr = sensor_attr->index;
716
corentin.labbeb74f3fd2007-06-13 20:27:36 +0200717 struct it87_data *data = dev_get_drvdata(dev);
Jean Delvaref5f64502010-03-05 22:17:19 +0100718 long val;
Jean Delvare7f999aa2007-02-14 21:15:03 +0100719 u8 reg;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700720
Jean Delvaref5f64502010-03-05 22:17:19 +0100721 if (strict_strtol(buf, 10, &val) < 0)
722 return -EINVAL;
723
Ingo Molnar9a61bf62006-01-18 23:19:26 +0100724 mutex_lock(&data->update_lock);
corentin.labbeb74f3fd2007-06-13 20:27:36 +0200725 reg = it87_read_value(data, IT87_REG_FAN_DIV);
Jean Delvare07eab462005-11-23 15:44:31 -0800726 switch (nr) {
Jean Delvare5f2dc792010-03-05 22:17:18 +0100727 case 0:
728 data->fan_div[nr] = reg & 0x07;
729 break;
730 case 1:
731 data->fan_div[nr] = (reg >> 3) & 0x07;
732 break;
733 case 2:
734 data->fan_div[nr] = (reg & 0x40) ? 3 : 1;
735 break;
Jean Delvare07eab462005-11-23 15:44:31 -0800736 }
737
Linus Torvalds1da177e2005-04-16 15:20:36 -0700738 data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr]));
Jean Delvarec7f1f712007-09-03 17:11:46 +0200739 it87_write_value(data, IT87_REG_FAN_MIN[nr], data->fan_min[nr]);
Ingo Molnar9a61bf62006-01-18 23:19:26 +0100740 mutex_unlock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700741 return count;
742}
Jean Delvare20ad93d2005-06-05 11:53:25 +0200743static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr,
744 const char *buf, size_t count)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700745{
Jean Delvare20ad93d2005-06-05 11:53:25 +0200746 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
747 int nr = sensor_attr->index;
748
corentin.labbeb74f3fd2007-06-13 20:27:36 +0200749 struct it87_data *data = dev_get_drvdata(dev);
Jean Delvaref5f64502010-03-05 22:17:19 +0100750 unsigned long val;
Jean Delvare8ab4ec32006-08-28 14:35:46 +0200751 int min;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700752 u8 old;
753
Jean Delvaref5f64502010-03-05 22:17:19 +0100754 if (strict_strtoul(buf, 10, &val) < 0)
755 return -EINVAL;
756
Ingo Molnar9a61bf62006-01-18 23:19:26 +0100757 mutex_lock(&data->update_lock);
corentin.labbeb74f3fd2007-06-13 20:27:36 +0200758 old = it87_read_value(data, IT87_REG_FAN_DIV);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700759
Jean Delvare8ab4ec32006-08-28 14:35:46 +0200760 /* Save fan min limit */
761 min = FAN_FROM_REG(data->fan_min[nr], DIV_FROM_REG(data->fan_div[nr]));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700762
763 switch (nr) {
764 case 0:
765 case 1:
766 data->fan_div[nr] = DIV_TO_REG(val);
767 break;
768 case 2:
769 if (val < 8)
770 data->fan_div[nr] = 1;
771 else
772 data->fan_div[nr] = 3;
773 }
774 val = old & 0x80;
775 val |= (data->fan_div[0] & 0x07);
776 val |= (data->fan_div[1] & 0x07) << 3;
777 if (data->fan_div[2] == 3)
778 val |= 0x1 << 6;
corentin.labbeb74f3fd2007-06-13 20:27:36 +0200779 it87_write_value(data, IT87_REG_FAN_DIV, val);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700780
Jean Delvare8ab4ec32006-08-28 14:35:46 +0200781 /* Restore fan min limit */
782 data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr]));
Jean Delvarec7f1f712007-09-03 17:11:46 +0200783 it87_write_value(data, IT87_REG_FAN_MIN[nr], data->fan_min[nr]);
Jean Delvare8ab4ec32006-08-28 14:35:46 +0200784
Ingo Molnar9a61bf62006-01-18 23:19:26 +0100785 mutex_unlock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700786 return count;
787}
Jean Delvarecccfc9c2010-03-05 22:17:21 +0100788
789/* Returns 0 if OK, -EINVAL otherwise */
790static int check_trip_points(struct device *dev, int nr)
791{
792 const struct it87_data *data = dev_get_drvdata(dev);
793 int i, err = 0;
794
795 if (has_old_autopwm(data)) {
796 for (i = 0; i < 3; i++) {
797 if (data->auto_temp[nr][i] > data->auto_temp[nr][i + 1])
798 err = -EINVAL;
799 }
800 for (i = 0; i < 2; i++) {
801 if (data->auto_pwm[nr][i] > data->auto_pwm[nr][i + 1])
802 err = -EINVAL;
803 }
804 }
805
806 if (err) {
807 dev_err(dev, "Inconsistent trip points, not switching to "
808 "automatic mode\n");
809 dev_err(dev, "Adjust the trip points and try again\n");
810 }
811 return err;
812}
813
Jean Delvare20ad93d2005-06-05 11:53:25 +0200814static ssize_t set_pwm_enable(struct device *dev,
815 struct device_attribute *attr, const char *buf, size_t count)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700816{
Jean Delvare20ad93d2005-06-05 11:53:25 +0200817 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
818 int nr = sensor_attr->index;
819
corentin.labbeb74f3fd2007-06-13 20:27:36 +0200820 struct it87_data *data = dev_get_drvdata(dev);
Jean Delvaref5f64502010-03-05 22:17:19 +0100821 long val;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700822
Jean Delvaref5f64502010-03-05 22:17:19 +0100823 if (strict_strtol(buf, 10, &val) < 0 || val < 0 || val > 2)
Jean Delvareb99883d2010-03-05 22:17:15 +0100824 return -EINVAL;
825
Jean Delvarecccfc9c2010-03-05 22:17:21 +0100826 /* Check trip points before switching to automatic mode */
827 if (val == 2) {
828 if (check_trip_points(dev, nr) < 0)
829 return -EINVAL;
830 }
831
Ingo Molnar9a61bf62006-01-18 23:19:26 +0100832 mutex_lock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700833
834 if (val == 0) {
835 int tmp;
836 /* make sure the fan is on when in on/off mode */
corentin.labbeb74f3fd2007-06-13 20:27:36 +0200837 tmp = it87_read_value(data, IT87_REG_FAN_CTL);
838 it87_write_value(data, IT87_REG_FAN_CTL, tmp | (1 << nr));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700839 /* set on/off mode */
840 data->fan_main_ctrl &= ~(1 << nr);
Jean Delvare5f2dc792010-03-05 22:17:18 +0100841 it87_write_value(data, IT87_REG_FAN_MAIN_CTRL,
842 data->fan_main_ctrl);
Jean Delvareb99883d2010-03-05 22:17:15 +0100843 } else {
844 if (val == 1) /* Manual mode */
Jean Delvare6229cdb2010-12-08 16:27:22 +0100845 data->pwm_ctrl[nr] = data->type == it8721 ?
846 data->pwm_temp_map[nr] :
847 data->pwm_duty[nr];
Jean Delvareb99883d2010-03-05 22:17:15 +0100848 else /* Automatic mode */
849 data->pwm_ctrl[nr] = 0x80 | data->pwm_temp_map[nr];
850 it87_write_value(data, IT87_REG_PWM(nr), data->pwm_ctrl[nr]);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700851 /* set SmartGuardian mode */
852 data->fan_main_ctrl |= (1 << nr);
Jean Delvare5f2dc792010-03-05 22:17:18 +0100853 it87_write_value(data, IT87_REG_FAN_MAIN_CTRL,
854 data->fan_main_ctrl);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700855 }
856
Ingo Molnar9a61bf62006-01-18 23:19:26 +0100857 mutex_unlock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700858 return count;
859}
Jean Delvare20ad93d2005-06-05 11:53:25 +0200860static ssize_t set_pwm(struct device *dev, struct device_attribute *attr,
861 const char *buf, size_t count)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700862{
Jean Delvare20ad93d2005-06-05 11:53:25 +0200863 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
864 int nr = sensor_attr->index;
865
corentin.labbeb74f3fd2007-06-13 20:27:36 +0200866 struct it87_data *data = dev_get_drvdata(dev);
Jean Delvaref5f64502010-03-05 22:17:19 +0100867 long val;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700868
Jean Delvaref5f64502010-03-05 22:17:19 +0100869 if (strict_strtol(buf, 10, &val) < 0 || val < 0 || val > 255)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700870 return -EINVAL;
871
Ingo Molnar9a61bf62006-01-18 23:19:26 +0100872 mutex_lock(&data->update_lock);
Jean Delvare6229cdb2010-12-08 16:27:22 +0100873 if (data->type == it8721) {
874 /* If we are in automatic mode, the PWM duty cycle register
875 * is read-only so we can't write the value */
876 if (data->pwm_ctrl[nr] & 0x80) {
877 mutex_unlock(&data->update_lock);
878 return -EBUSY;
879 }
880 data->pwm_duty[nr] = pwm_to_reg(data, val);
881 it87_write_value(data, IT87_REG_PWM_DUTY(nr),
882 data->pwm_duty[nr]);
883 } else {
884 data->pwm_duty[nr] = pwm_to_reg(data, val);
885 /* If we are in manual mode, write the duty cycle immediately;
886 * otherwise, just store it for later use. */
887 if (!(data->pwm_ctrl[nr] & 0x80)) {
888 data->pwm_ctrl[nr] = data->pwm_duty[nr];
889 it87_write_value(data, IT87_REG_PWM(nr),
890 data->pwm_ctrl[nr]);
891 }
Jean Delvareb99883d2010-03-05 22:17:15 +0100892 }
Ingo Molnar9a61bf62006-01-18 23:19:26 +0100893 mutex_unlock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700894 return count;
895}
Jean Delvaref8d0c192007-02-14 21:15:02 +0100896static ssize_t set_pwm_freq(struct device *dev,
897 struct device_attribute *attr, const char *buf, size_t count)
898{
corentin.labbeb74f3fd2007-06-13 20:27:36 +0200899 struct it87_data *data = dev_get_drvdata(dev);
Jean Delvaref5f64502010-03-05 22:17:19 +0100900 unsigned long val;
Jean Delvaref8d0c192007-02-14 21:15:02 +0100901 int i;
902
Jean Delvaref5f64502010-03-05 22:17:19 +0100903 if (strict_strtoul(buf, 10, &val) < 0)
904 return -EINVAL;
905
Jean Delvaref8d0c192007-02-14 21:15:02 +0100906 /* Search for the nearest available frequency */
907 for (i = 0; i < 7; i++) {
908 if (val > (pwm_freq[i] + pwm_freq[i+1]) / 2)
909 break;
910 }
911
912 mutex_lock(&data->update_lock);
corentin.labbeb74f3fd2007-06-13 20:27:36 +0200913 data->fan_ctl = it87_read_value(data, IT87_REG_FAN_CTL) & 0x8f;
Jean Delvaref8d0c192007-02-14 21:15:02 +0100914 data->fan_ctl |= i << 4;
corentin.labbeb74f3fd2007-06-13 20:27:36 +0200915 it87_write_value(data, IT87_REG_FAN_CTL, data->fan_ctl);
Jean Delvaref8d0c192007-02-14 21:15:02 +0100916 mutex_unlock(&data->update_lock);
917
918 return count;
919}
Jean Delvare94ac7ee2010-03-05 22:17:16 +0100920static ssize_t show_pwm_temp_map(struct device *dev,
921 struct device_attribute *attr, char *buf)
922{
923 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
924 int nr = sensor_attr->index;
925
926 struct it87_data *data = it87_update_device(dev);
927 int map;
928
929 if (data->pwm_temp_map[nr] < 3)
930 map = 1 << data->pwm_temp_map[nr];
931 else
932 map = 0; /* Should never happen */
933 return sprintf(buf, "%d\n", map);
934}
935static ssize_t set_pwm_temp_map(struct device *dev,
936 struct device_attribute *attr, const char *buf, size_t count)
937{
938 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
939 int nr = sensor_attr->index;
940
941 struct it87_data *data = dev_get_drvdata(dev);
942 long val;
943 u8 reg;
944
Jean Delvare4f3f51b2010-03-05 22:17:21 +0100945 /* This check can go away if we ever support automatic fan speed
946 control on newer chips. */
947 if (!has_old_autopwm(data)) {
948 dev_notice(dev, "Mapping change disabled for safety reasons\n");
949 return -EINVAL;
950 }
951
Jean Delvare94ac7ee2010-03-05 22:17:16 +0100952 if (strict_strtol(buf, 10, &val) < 0)
953 return -EINVAL;
954
955 switch (val) {
956 case (1 << 0):
957 reg = 0x00;
958 break;
959 case (1 << 1):
960 reg = 0x01;
961 break;
962 case (1 << 2):
963 reg = 0x02;
964 break;
965 default:
966 return -EINVAL;
967 }
968
969 mutex_lock(&data->update_lock);
970 data->pwm_temp_map[nr] = reg;
971 /* If we are in automatic mode, write the temp mapping immediately;
972 * otherwise, just store it for later use. */
973 if (data->pwm_ctrl[nr] & 0x80) {
974 data->pwm_ctrl[nr] = 0x80 | data->pwm_temp_map[nr];
975 it87_write_value(data, IT87_REG_PWM(nr), data->pwm_ctrl[nr]);
976 }
977 mutex_unlock(&data->update_lock);
978 return count;
979}
Linus Torvalds1da177e2005-04-16 15:20:36 -0700980
Jean Delvare4f3f51b2010-03-05 22:17:21 +0100981static ssize_t show_auto_pwm(struct device *dev,
982 struct device_attribute *attr, char *buf)
983{
984 struct it87_data *data = it87_update_device(dev);
985 struct sensor_device_attribute_2 *sensor_attr =
986 to_sensor_dev_attr_2(attr);
987 int nr = sensor_attr->nr;
988 int point = sensor_attr->index;
989
Jean Delvare44c1bcd2010-10-28 20:31:51 +0200990 return sprintf(buf, "%d\n",
991 pwm_from_reg(data, data->auto_pwm[nr][point]));
Jean Delvare4f3f51b2010-03-05 22:17:21 +0100992}
993
994static ssize_t set_auto_pwm(struct device *dev,
995 struct device_attribute *attr, const char *buf, size_t count)
996{
997 struct it87_data *data = dev_get_drvdata(dev);
998 struct sensor_device_attribute_2 *sensor_attr =
999 to_sensor_dev_attr_2(attr);
1000 int nr = sensor_attr->nr;
1001 int point = sensor_attr->index;
1002 long val;
1003
1004 if (strict_strtol(buf, 10, &val) < 0 || val < 0 || val > 255)
1005 return -EINVAL;
1006
1007 mutex_lock(&data->update_lock);
Jean Delvare44c1bcd2010-10-28 20:31:51 +02001008 data->auto_pwm[nr][point] = pwm_to_reg(data, val);
Jean Delvare4f3f51b2010-03-05 22:17:21 +01001009 it87_write_value(data, IT87_REG_AUTO_PWM(nr, point),
1010 data->auto_pwm[nr][point]);
1011 mutex_unlock(&data->update_lock);
1012 return count;
1013}
1014
1015static ssize_t show_auto_temp(struct device *dev,
1016 struct device_attribute *attr, char *buf)
1017{
1018 struct it87_data *data = it87_update_device(dev);
1019 struct sensor_device_attribute_2 *sensor_attr =
1020 to_sensor_dev_attr_2(attr);
1021 int nr = sensor_attr->nr;
1022 int point = sensor_attr->index;
1023
1024 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->auto_temp[nr][point]));
1025}
1026
1027static ssize_t set_auto_temp(struct device *dev,
1028 struct device_attribute *attr, const char *buf, size_t count)
1029{
1030 struct it87_data *data = dev_get_drvdata(dev);
1031 struct sensor_device_attribute_2 *sensor_attr =
1032 to_sensor_dev_attr_2(attr);
1033 int nr = sensor_attr->nr;
1034 int point = sensor_attr->index;
1035 long val;
1036
1037 if (strict_strtol(buf, 10, &val) < 0 || val < -128000 || val > 127000)
1038 return -EINVAL;
1039
1040 mutex_lock(&data->update_lock);
1041 data->auto_temp[nr][point] = TEMP_TO_REG(val);
1042 it87_write_value(data, IT87_REG_AUTO_TEMP(nr, point),
1043 data->auto_temp[nr][point]);
1044 mutex_unlock(&data->update_lock);
1045 return count;
1046}
1047
Jean Delvare20ad93d2005-06-05 11:53:25 +02001048#define show_fan_offset(offset) \
1049static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, \
1050 show_fan, NULL, offset - 1); \
1051static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \
1052 show_fan_min, set_fan_min, offset - 1); \
1053static SENSOR_DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR, \
1054 show_fan_div, set_fan_div, offset - 1);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001055
1056show_fan_offset(1);
1057show_fan_offset(2);
1058show_fan_offset(3);
1059
1060#define show_pwm_offset(offset) \
Jean Delvare20ad93d2005-06-05 11:53:25 +02001061static SENSOR_DEVICE_ATTR(pwm##offset##_enable, S_IRUGO | S_IWUSR, \
1062 show_pwm_enable, set_pwm_enable, offset - 1); \
1063static SENSOR_DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR, \
Jean Delvaref8d0c192007-02-14 21:15:02 +01001064 show_pwm, set_pwm, offset - 1); \
1065static DEVICE_ATTR(pwm##offset##_freq, \
1066 (offset == 1 ? S_IRUGO | S_IWUSR : S_IRUGO), \
Jean Delvare94ac7ee2010-03-05 22:17:16 +01001067 show_pwm_freq, (offset == 1 ? set_pwm_freq : NULL)); \
1068static SENSOR_DEVICE_ATTR(pwm##offset##_auto_channels_temp, \
Jean Delvare4f3f51b2010-03-05 22:17:21 +01001069 S_IRUGO | S_IWUSR, show_pwm_temp_map, set_pwm_temp_map, \
1070 offset - 1); \
1071static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point1_pwm, \
1072 S_IRUGO | S_IWUSR, show_auto_pwm, set_auto_pwm, \
1073 offset - 1, 0); \
1074static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point2_pwm, \
1075 S_IRUGO | S_IWUSR, show_auto_pwm, set_auto_pwm, \
1076 offset - 1, 1); \
1077static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point3_pwm, \
1078 S_IRUGO | S_IWUSR, show_auto_pwm, set_auto_pwm, \
1079 offset - 1, 2); \
1080static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point4_pwm, \
1081 S_IRUGO, show_auto_pwm, NULL, offset - 1, 3); \
1082static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point1_temp, \
1083 S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, \
1084 offset - 1, 1); \
1085static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point1_temp_hyst, \
1086 S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, \
1087 offset - 1, 0); \
1088static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point2_temp, \
1089 S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, \
1090 offset - 1, 2); \
1091static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point3_temp, \
1092 S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, \
1093 offset - 1, 3); \
1094static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point4_temp, \
1095 S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, \
1096 offset - 1, 4);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001097
1098show_pwm_offset(1);
1099show_pwm_offset(2);
1100show_pwm_offset(3);
1101
Jean Delvare17d648b2006-08-28 14:23:46 +02001102/* A different set of callbacks for 16-bit fans */
1103static ssize_t show_fan16(struct device *dev, struct device_attribute *attr,
1104 char *buf)
1105{
1106 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1107 int nr = sensor_attr->index;
1108 struct it87_data *data = it87_update_device(dev);
1109 return sprintf(buf, "%d\n", FAN16_FROM_REG(data->fan[nr]));
1110}
1111
1112static ssize_t show_fan16_min(struct device *dev, struct device_attribute *attr,
1113 char *buf)
1114{
1115 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1116 int nr = sensor_attr->index;
1117 struct it87_data *data = it87_update_device(dev);
1118 return sprintf(buf, "%d\n", FAN16_FROM_REG(data->fan_min[nr]));
1119}
1120
1121static ssize_t set_fan16_min(struct device *dev, struct device_attribute *attr,
1122 const char *buf, size_t count)
1123{
1124 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1125 int nr = sensor_attr->index;
corentin.labbeb74f3fd2007-06-13 20:27:36 +02001126 struct it87_data *data = dev_get_drvdata(dev);
Jean Delvaref5f64502010-03-05 22:17:19 +01001127 long val;
1128
1129 if (strict_strtol(buf, 10, &val) < 0)
1130 return -EINVAL;
Jean Delvare17d648b2006-08-28 14:23:46 +02001131
1132 mutex_lock(&data->update_lock);
1133 data->fan_min[nr] = FAN16_TO_REG(val);
Jean Delvarec7f1f712007-09-03 17:11:46 +02001134 it87_write_value(data, IT87_REG_FAN_MIN[nr],
Jean Delvare17d648b2006-08-28 14:23:46 +02001135 data->fan_min[nr] & 0xff);
Jean Delvarec7f1f712007-09-03 17:11:46 +02001136 it87_write_value(data, IT87_REG_FANX_MIN[nr],
Jean Delvare17d648b2006-08-28 14:23:46 +02001137 data->fan_min[nr] >> 8);
1138 mutex_unlock(&data->update_lock);
1139 return count;
1140}
1141
1142/* We want to use the same sysfs file names as 8-bit fans, but we need
1143 different variable names, so we have to use SENSOR_ATTR instead of
1144 SENSOR_DEVICE_ATTR. */
1145#define show_fan16_offset(offset) \
1146static struct sensor_device_attribute sensor_dev_attr_fan##offset##_input16 \
1147 = SENSOR_ATTR(fan##offset##_input, S_IRUGO, \
1148 show_fan16, NULL, offset - 1); \
1149static struct sensor_device_attribute sensor_dev_attr_fan##offset##_min16 \
1150 = SENSOR_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \
1151 show_fan16_min, set_fan16_min, offset - 1)
1152
1153show_fan16_offset(1);
1154show_fan16_offset(2);
1155show_fan16_offset(3);
Jean Delvarec7f1f712007-09-03 17:11:46 +02001156show_fan16_offset(4);
1157show_fan16_offset(5);
Jean Delvare17d648b2006-08-28 14:23:46 +02001158
Linus Torvalds1da177e2005-04-16 15:20:36 -07001159/* Alarms */
Jean Delvare5f2dc792010-03-05 22:17:18 +01001160static ssize_t show_alarms(struct device *dev, struct device_attribute *attr,
1161 char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001162{
1163 struct it87_data *data = it87_update_device(dev);
Jean Delvare68188ba2005-05-16 18:52:38 +02001164 return sprintf(buf, "%u\n", data->alarms);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001165}
Jean Delvare1d66c642005-04-18 21:16:59 -07001166static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001167
Jean Delvare0124dd72007-11-25 16:16:41 +01001168static ssize_t show_alarm(struct device *dev, struct device_attribute *attr,
1169 char *buf)
1170{
1171 int bitnr = to_sensor_dev_attr(attr)->index;
1172 struct it87_data *data = it87_update_device(dev);
1173 return sprintf(buf, "%u\n", (data->alarms >> bitnr) & 1);
1174}
1175static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 8);
1176static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 9);
1177static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 10);
1178static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 11);
1179static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 12);
1180static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 13);
1181static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 14);
1182static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 15);
1183static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 0);
1184static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 1);
1185static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 2);
1186static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 3);
1187static SENSOR_DEVICE_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 6);
1188static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 16);
1189static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 17);
1190static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 18);
1191
Jean Delvared9b327c2010-03-05 22:17:17 +01001192static ssize_t show_beep(struct device *dev, struct device_attribute *attr,
1193 char *buf)
1194{
1195 int bitnr = to_sensor_dev_attr(attr)->index;
1196 struct it87_data *data = it87_update_device(dev);
1197 return sprintf(buf, "%u\n", (data->beeps >> bitnr) & 1);
1198}
1199static ssize_t set_beep(struct device *dev, struct device_attribute *attr,
1200 const char *buf, size_t count)
1201{
1202 int bitnr = to_sensor_dev_attr(attr)->index;
1203 struct it87_data *data = dev_get_drvdata(dev);
1204 long val;
1205
1206 if (strict_strtol(buf, 10, &val) < 0
1207 || (val != 0 && val != 1))
1208 return -EINVAL;
1209
1210 mutex_lock(&data->update_lock);
1211 data->beeps = it87_read_value(data, IT87_REG_BEEP_ENABLE);
1212 if (val)
1213 data->beeps |= (1 << bitnr);
1214 else
1215 data->beeps &= ~(1 << bitnr);
1216 it87_write_value(data, IT87_REG_BEEP_ENABLE, data->beeps);
1217 mutex_unlock(&data->update_lock);
1218 return count;
1219}
1220
1221static SENSOR_DEVICE_ATTR(in0_beep, S_IRUGO | S_IWUSR,
1222 show_beep, set_beep, 1);
1223static SENSOR_DEVICE_ATTR(in1_beep, S_IRUGO, show_beep, NULL, 1);
1224static SENSOR_DEVICE_ATTR(in2_beep, S_IRUGO, show_beep, NULL, 1);
1225static SENSOR_DEVICE_ATTR(in3_beep, S_IRUGO, show_beep, NULL, 1);
1226static SENSOR_DEVICE_ATTR(in4_beep, S_IRUGO, show_beep, NULL, 1);
1227static SENSOR_DEVICE_ATTR(in5_beep, S_IRUGO, show_beep, NULL, 1);
1228static SENSOR_DEVICE_ATTR(in6_beep, S_IRUGO, show_beep, NULL, 1);
1229static SENSOR_DEVICE_ATTR(in7_beep, S_IRUGO, show_beep, NULL, 1);
1230/* fanX_beep writability is set later */
1231static SENSOR_DEVICE_ATTR(fan1_beep, S_IRUGO, show_beep, set_beep, 0);
1232static SENSOR_DEVICE_ATTR(fan2_beep, S_IRUGO, show_beep, set_beep, 0);
1233static SENSOR_DEVICE_ATTR(fan3_beep, S_IRUGO, show_beep, set_beep, 0);
1234static SENSOR_DEVICE_ATTR(fan4_beep, S_IRUGO, show_beep, set_beep, 0);
1235static SENSOR_DEVICE_ATTR(fan5_beep, S_IRUGO, show_beep, set_beep, 0);
1236static SENSOR_DEVICE_ATTR(temp1_beep, S_IRUGO | S_IWUSR,
1237 show_beep, set_beep, 2);
1238static SENSOR_DEVICE_ATTR(temp2_beep, S_IRUGO, show_beep, NULL, 2);
1239static SENSOR_DEVICE_ATTR(temp3_beep, S_IRUGO, show_beep, NULL, 2);
1240
Jean Delvare5f2dc792010-03-05 22:17:18 +01001241static ssize_t show_vrm_reg(struct device *dev, struct device_attribute *attr,
1242 char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001243{
Jean Delvare90d66192007-10-08 18:24:35 +02001244 struct it87_data *data = dev_get_drvdata(dev);
Jean Delvarea7be58a2005-12-18 16:40:14 +01001245 return sprintf(buf, "%u\n", data->vrm);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001246}
Jean Delvare5f2dc792010-03-05 22:17:18 +01001247static ssize_t store_vrm_reg(struct device *dev, struct device_attribute *attr,
1248 const char *buf, size_t count)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001249{
corentin.labbeb74f3fd2007-06-13 20:27:36 +02001250 struct it87_data *data = dev_get_drvdata(dev);
Jean Delvaref5f64502010-03-05 22:17:19 +01001251 unsigned long val;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001252
Jean Delvaref5f64502010-03-05 22:17:19 +01001253 if (strict_strtoul(buf, 10, &val) < 0)
1254 return -EINVAL;
1255
Linus Torvalds1da177e2005-04-16 15:20:36 -07001256 data->vrm = val;
1257
1258 return count;
1259}
1260static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001261
Jean Delvare5f2dc792010-03-05 22:17:18 +01001262static ssize_t show_vid_reg(struct device *dev, struct device_attribute *attr,
1263 char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001264{
1265 struct it87_data *data = it87_update_device(dev);
1266 return sprintf(buf, "%ld\n", (long) vid_from_reg(data->vid, data->vrm));
1267}
1268static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL);
Jean Delvare87808be2006-09-24 21:17:13 +02001269
Jean Delvare738e5e02010-08-14 21:08:50 +02001270static ssize_t show_label(struct device *dev, struct device_attribute *attr,
1271 char *buf)
1272{
1273 static const char *labels[] = {
1274 "+5V",
1275 "5VSB",
1276 "Vbat",
1277 };
Jean Delvare44c1bcd2010-10-28 20:31:51 +02001278 static const char *labels_it8721[] = {
1279 "+3.3V",
1280 "3VSB",
1281 "Vbat",
1282 };
1283 struct it87_data *data = dev_get_drvdata(dev);
Jean Delvare738e5e02010-08-14 21:08:50 +02001284 int nr = to_sensor_dev_attr(attr)->index;
1285
Jean Delvare44c1bcd2010-10-28 20:31:51 +02001286 return sprintf(buf, "%s\n", data->type == it8721 ? labels_it8721[nr]
1287 : labels[nr]);
Jean Delvare738e5e02010-08-14 21:08:50 +02001288}
1289static SENSOR_DEVICE_ATTR(in3_label, S_IRUGO, show_label, NULL, 0);
1290static SENSOR_DEVICE_ATTR(in7_label, S_IRUGO, show_label, NULL, 1);
1291static SENSOR_DEVICE_ATTR(in8_label, S_IRUGO, show_label, NULL, 2);
1292
corentin.labbeb74f3fd2007-06-13 20:27:36 +02001293static ssize_t show_name(struct device *dev, struct device_attribute
1294 *devattr, char *buf)
1295{
1296 struct it87_data *data = dev_get_drvdata(dev);
1297 return sprintf(buf, "%s\n", data->name);
1298}
1299static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
1300
Jean Delvare87808be2006-09-24 21:17:13 +02001301static struct attribute *it87_attributes[] = {
1302 &sensor_dev_attr_in0_input.dev_attr.attr,
1303 &sensor_dev_attr_in1_input.dev_attr.attr,
1304 &sensor_dev_attr_in2_input.dev_attr.attr,
1305 &sensor_dev_attr_in3_input.dev_attr.attr,
1306 &sensor_dev_attr_in4_input.dev_attr.attr,
1307 &sensor_dev_attr_in5_input.dev_attr.attr,
1308 &sensor_dev_attr_in6_input.dev_attr.attr,
1309 &sensor_dev_attr_in7_input.dev_attr.attr,
1310 &sensor_dev_attr_in8_input.dev_attr.attr,
1311 &sensor_dev_attr_in0_min.dev_attr.attr,
1312 &sensor_dev_attr_in1_min.dev_attr.attr,
1313 &sensor_dev_attr_in2_min.dev_attr.attr,
1314 &sensor_dev_attr_in3_min.dev_attr.attr,
1315 &sensor_dev_attr_in4_min.dev_attr.attr,
1316 &sensor_dev_attr_in5_min.dev_attr.attr,
1317 &sensor_dev_attr_in6_min.dev_attr.attr,
1318 &sensor_dev_attr_in7_min.dev_attr.attr,
1319 &sensor_dev_attr_in0_max.dev_attr.attr,
1320 &sensor_dev_attr_in1_max.dev_attr.attr,
1321 &sensor_dev_attr_in2_max.dev_attr.attr,
1322 &sensor_dev_attr_in3_max.dev_attr.attr,
1323 &sensor_dev_attr_in4_max.dev_attr.attr,
1324 &sensor_dev_attr_in5_max.dev_attr.attr,
1325 &sensor_dev_attr_in6_max.dev_attr.attr,
1326 &sensor_dev_attr_in7_max.dev_attr.attr,
Jean Delvare0124dd72007-11-25 16:16:41 +01001327 &sensor_dev_attr_in0_alarm.dev_attr.attr,
1328 &sensor_dev_attr_in1_alarm.dev_attr.attr,
1329 &sensor_dev_attr_in2_alarm.dev_attr.attr,
1330 &sensor_dev_attr_in3_alarm.dev_attr.attr,
1331 &sensor_dev_attr_in4_alarm.dev_attr.attr,
1332 &sensor_dev_attr_in5_alarm.dev_attr.attr,
1333 &sensor_dev_attr_in6_alarm.dev_attr.attr,
1334 &sensor_dev_attr_in7_alarm.dev_attr.attr,
Jean Delvare87808be2006-09-24 21:17:13 +02001335
1336 &sensor_dev_attr_temp1_input.dev_attr.attr,
1337 &sensor_dev_attr_temp2_input.dev_attr.attr,
1338 &sensor_dev_attr_temp3_input.dev_attr.attr,
1339 &sensor_dev_attr_temp1_max.dev_attr.attr,
1340 &sensor_dev_attr_temp2_max.dev_attr.attr,
1341 &sensor_dev_attr_temp3_max.dev_attr.attr,
1342 &sensor_dev_attr_temp1_min.dev_attr.attr,
1343 &sensor_dev_attr_temp2_min.dev_attr.attr,
1344 &sensor_dev_attr_temp3_min.dev_attr.attr,
1345 &sensor_dev_attr_temp1_type.dev_attr.attr,
1346 &sensor_dev_attr_temp2_type.dev_attr.attr,
1347 &sensor_dev_attr_temp3_type.dev_attr.attr,
Jean Delvare0124dd72007-11-25 16:16:41 +01001348 &sensor_dev_attr_temp1_alarm.dev_attr.attr,
1349 &sensor_dev_attr_temp2_alarm.dev_attr.attr,
1350 &sensor_dev_attr_temp3_alarm.dev_attr.attr,
Jean Delvare87808be2006-09-24 21:17:13 +02001351
1352 &dev_attr_alarms.attr,
corentin.labbeb74f3fd2007-06-13 20:27:36 +02001353 &dev_attr_name.attr,
Jean Delvare87808be2006-09-24 21:17:13 +02001354 NULL
1355};
1356
1357static const struct attribute_group it87_group = {
1358 .attrs = it87_attributes,
1359};
1360
Jean Delvared9b327c2010-03-05 22:17:17 +01001361static struct attribute *it87_attributes_beep[] = {
1362 &sensor_dev_attr_in0_beep.dev_attr.attr,
1363 &sensor_dev_attr_in1_beep.dev_attr.attr,
1364 &sensor_dev_attr_in2_beep.dev_attr.attr,
1365 &sensor_dev_attr_in3_beep.dev_attr.attr,
1366 &sensor_dev_attr_in4_beep.dev_attr.attr,
1367 &sensor_dev_attr_in5_beep.dev_attr.attr,
1368 &sensor_dev_attr_in6_beep.dev_attr.attr,
1369 &sensor_dev_attr_in7_beep.dev_attr.attr,
1370
1371 &sensor_dev_attr_temp1_beep.dev_attr.attr,
1372 &sensor_dev_attr_temp2_beep.dev_attr.attr,
1373 &sensor_dev_attr_temp3_beep.dev_attr.attr,
1374 NULL
1375};
1376
1377static const struct attribute_group it87_group_beep = {
1378 .attrs = it87_attributes_beep,
1379};
1380
Jean Delvare723a0aa2010-03-05 22:17:16 +01001381static struct attribute *it87_attributes_fan16[5][3+1] = { {
Jean Delvare87808be2006-09-24 21:17:13 +02001382 &sensor_dev_attr_fan1_input16.dev_attr.attr,
1383 &sensor_dev_attr_fan1_min16.dev_attr.attr,
Jean Delvare723a0aa2010-03-05 22:17:16 +01001384 &sensor_dev_attr_fan1_alarm.dev_attr.attr,
1385 NULL
1386}, {
Jean Delvare87808be2006-09-24 21:17:13 +02001387 &sensor_dev_attr_fan2_input16.dev_attr.attr,
1388 &sensor_dev_attr_fan2_min16.dev_attr.attr,
Jean Delvare723a0aa2010-03-05 22:17:16 +01001389 &sensor_dev_attr_fan2_alarm.dev_attr.attr,
1390 NULL
1391}, {
Jean Delvare87808be2006-09-24 21:17:13 +02001392 &sensor_dev_attr_fan3_input16.dev_attr.attr,
1393 &sensor_dev_attr_fan3_min16.dev_attr.attr,
Jean Delvare723a0aa2010-03-05 22:17:16 +01001394 &sensor_dev_attr_fan3_alarm.dev_attr.attr,
1395 NULL
1396}, {
Jean Delvarec7f1f712007-09-03 17:11:46 +02001397 &sensor_dev_attr_fan4_input16.dev_attr.attr,
1398 &sensor_dev_attr_fan4_min16.dev_attr.attr,
Jean Delvare723a0aa2010-03-05 22:17:16 +01001399 &sensor_dev_attr_fan4_alarm.dev_attr.attr,
1400 NULL
1401}, {
Jean Delvarec7f1f712007-09-03 17:11:46 +02001402 &sensor_dev_attr_fan5_input16.dev_attr.attr,
1403 &sensor_dev_attr_fan5_min16.dev_attr.attr,
Jean Delvare723a0aa2010-03-05 22:17:16 +01001404 &sensor_dev_attr_fan5_alarm.dev_attr.attr,
1405 NULL
1406} };
Jean Delvare87808be2006-09-24 21:17:13 +02001407
Jean Delvare723a0aa2010-03-05 22:17:16 +01001408static const struct attribute_group it87_group_fan16[5] = {
1409 { .attrs = it87_attributes_fan16[0] },
1410 { .attrs = it87_attributes_fan16[1] },
1411 { .attrs = it87_attributes_fan16[2] },
1412 { .attrs = it87_attributes_fan16[3] },
1413 { .attrs = it87_attributes_fan16[4] },
1414};
1415
1416static struct attribute *it87_attributes_fan[3][4+1] = { {
Jean Delvare87808be2006-09-24 21:17:13 +02001417 &sensor_dev_attr_fan1_input.dev_attr.attr,
1418 &sensor_dev_attr_fan1_min.dev_attr.attr,
1419 &sensor_dev_attr_fan1_div.dev_attr.attr,
Jean Delvare723a0aa2010-03-05 22:17:16 +01001420 &sensor_dev_attr_fan1_alarm.dev_attr.attr,
1421 NULL
1422}, {
Jean Delvare87808be2006-09-24 21:17:13 +02001423 &sensor_dev_attr_fan2_input.dev_attr.attr,
1424 &sensor_dev_attr_fan2_min.dev_attr.attr,
1425 &sensor_dev_attr_fan2_div.dev_attr.attr,
Jean Delvare723a0aa2010-03-05 22:17:16 +01001426 &sensor_dev_attr_fan2_alarm.dev_attr.attr,
1427 NULL
1428}, {
Jean Delvare87808be2006-09-24 21:17:13 +02001429 &sensor_dev_attr_fan3_input.dev_attr.attr,
1430 &sensor_dev_attr_fan3_min.dev_attr.attr,
1431 &sensor_dev_attr_fan3_div.dev_attr.attr,
Jean Delvare0124dd72007-11-25 16:16:41 +01001432 &sensor_dev_attr_fan3_alarm.dev_attr.attr,
Jean Delvare723a0aa2010-03-05 22:17:16 +01001433 NULL
1434} };
Jean Delvare0124dd72007-11-25 16:16:41 +01001435
Jean Delvare723a0aa2010-03-05 22:17:16 +01001436static const struct attribute_group it87_group_fan[3] = {
1437 { .attrs = it87_attributes_fan[0] },
1438 { .attrs = it87_attributes_fan[1] },
1439 { .attrs = it87_attributes_fan[2] },
1440};
1441
1442static const struct attribute_group *
1443it87_get_fan_group(const struct it87_data *data)
1444{
1445 return has_16bit_fans(data) ? it87_group_fan16 : it87_group_fan;
1446}
1447
1448static struct attribute *it87_attributes_pwm[3][4+1] = { {
Jean Delvare87808be2006-09-24 21:17:13 +02001449 &sensor_dev_attr_pwm1_enable.dev_attr.attr,
Jean Delvare87808be2006-09-24 21:17:13 +02001450 &sensor_dev_attr_pwm1.dev_attr.attr,
Jean Delvared5b0b5d2007-12-14 14:41:53 +01001451 &dev_attr_pwm1_freq.attr,
Jean Delvare94ac7ee2010-03-05 22:17:16 +01001452 &sensor_dev_attr_pwm1_auto_channels_temp.dev_attr.attr,
Jean Delvare723a0aa2010-03-05 22:17:16 +01001453 NULL
1454}, {
1455 &sensor_dev_attr_pwm2_enable.dev_attr.attr,
1456 &sensor_dev_attr_pwm2.dev_attr.attr,
1457 &dev_attr_pwm2_freq.attr,
Jean Delvare94ac7ee2010-03-05 22:17:16 +01001458 &sensor_dev_attr_pwm2_auto_channels_temp.dev_attr.attr,
Jean Delvare723a0aa2010-03-05 22:17:16 +01001459 NULL
1460}, {
1461 &sensor_dev_attr_pwm3_enable.dev_attr.attr,
1462 &sensor_dev_attr_pwm3.dev_attr.attr,
1463 &dev_attr_pwm3_freq.attr,
Jean Delvare94ac7ee2010-03-05 22:17:16 +01001464 &sensor_dev_attr_pwm3_auto_channels_temp.dev_attr.attr,
Jean Delvare723a0aa2010-03-05 22:17:16 +01001465 NULL
1466} };
Jean Delvare87808be2006-09-24 21:17:13 +02001467
Jean Delvare723a0aa2010-03-05 22:17:16 +01001468static const struct attribute_group it87_group_pwm[3] = {
1469 { .attrs = it87_attributes_pwm[0] },
1470 { .attrs = it87_attributes_pwm[1] },
1471 { .attrs = it87_attributes_pwm[2] },
1472};
1473
Jean Delvare4f3f51b2010-03-05 22:17:21 +01001474static struct attribute *it87_attributes_autopwm[3][9+1] = { {
1475 &sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr,
1476 &sensor_dev_attr_pwm1_auto_point2_pwm.dev_attr.attr,
1477 &sensor_dev_attr_pwm1_auto_point3_pwm.dev_attr.attr,
1478 &sensor_dev_attr_pwm1_auto_point4_pwm.dev_attr.attr,
1479 &sensor_dev_attr_pwm1_auto_point1_temp.dev_attr.attr,
1480 &sensor_dev_attr_pwm1_auto_point1_temp_hyst.dev_attr.attr,
1481 &sensor_dev_attr_pwm1_auto_point2_temp.dev_attr.attr,
1482 &sensor_dev_attr_pwm1_auto_point3_temp.dev_attr.attr,
1483 &sensor_dev_attr_pwm1_auto_point4_temp.dev_attr.attr,
1484 NULL
1485}, {
1486 &sensor_dev_attr_pwm2_auto_point1_pwm.dev_attr.attr,
1487 &sensor_dev_attr_pwm2_auto_point2_pwm.dev_attr.attr,
1488 &sensor_dev_attr_pwm2_auto_point3_pwm.dev_attr.attr,
1489 &sensor_dev_attr_pwm2_auto_point4_pwm.dev_attr.attr,
1490 &sensor_dev_attr_pwm2_auto_point1_temp.dev_attr.attr,
1491 &sensor_dev_attr_pwm2_auto_point1_temp_hyst.dev_attr.attr,
1492 &sensor_dev_attr_pwm2_auto_point2_temp.dev_attr.attr,
1493 &sensor_dev_attr_pwm2_auto_point3_temp.dev_attr.attr,
1494 &sensor_dev_attr_pwm2_auto_point4_temp.dev_attr.attr,
1495 NULL
1496}, {
1497 &sensor_dev_attr_pwm3_auto_point1_pwm.dev_attr.attr,
1498 &sensor_dev_attr_pwm3_auto_point2_pwm.dev_attr.attr,
1499 &sensor_dev_attr_pwm3_auto_point3_pwm.dev_attr.attr,
1500 &sensor_dev_attr_pwm3_auto_point4_pwm.dev_attr.attr,
1501 &sensor_dev_attr_pwm3_auto_point1_temp.dev_attr.attr,
1502 &sensor_dev_attr_pwm3_auto_point1_temp_hyst.dev_attr.attr,
1503 &sensor_dev_attr_pwm3_auto_point2_temp.dev_attr.attr,
1504 &sensor_dev_attr_pwm3_auto_point3_temp.dev_attr.attr,
1505 &sensor_dev_attr_pwm3_auto_point4_temp.dev_attr.attr,
1506 NULL
1507} };
1508
1509static const struct attribute_group it87_group_autopwm[3] = {
1510 { .attrs = it87_attributes_autopwm[0] },
1511 { .attrs = it87_attributes_autopwm[1] },
1512 { .attrs = it87_attributes_autopwm[2] },
1513};
1514
Jean Delvared9b327c2010-03-05 22:17:17 +01001515static struct attribute *it87_attributes_fan_beep[] = {
1516 &sensor_dev_attr_fan1_beep.dev_attr.attr,
1517 &sensor_dev_attr_fan2_beep.dev_attr.attr,
1518 &sensor_dev_attr_fan3_beep.dev_attr.attr,
1519 &sensor_dev_attr_fan4_beep.dev_attr.attr,
1520 &sensor_dev_attr_fan5_beep.dev_attr.attr,
1521};
1522
Jean Delvare6a8d7ac2010-03-05 22:17:16 +01001523static struct attribute *it87_attributes_vid[] = {
Jean Delvare87808be2006-09-24 21:17:13 +02001524 &dev_attr_vrm.attr,
1525 &dev_attr_cpu0_vid.attr,
1526 NULL
1527};
1528
Jean Delvare6a8d7ac2010-03-05 22:17:16 +01001529static const struct attribute_group it87_group_vid = {
1530 .attrs = it87_attributes_vid,
Jean Delvare87808be2006-09-24 21:17:13 +02001531};
Linus Torvalds1da177e2005-04-16 15:20:36 -07001532
Jean Delvare738e5e02010-08-14 21:08:50 +02001533static struct attribute *it87_attributes_label[] = {
1534 &sensor_dev_attr_in3_label.dev_attr.attr,
1535 &sensor_dev_attr_in7_label.dev_attr.attr,
1536 &sensor_dev_attr_in8_label.dev_attr.attr,
1537 NULL
1538};
1539
1540static const struct attribute_group it87_group_label = {
Jean Delvarefa8b6972011-07-17 18:39:19 +02001541 .attrs = it87_attributes_label,
Jean Delvare738e5e02010-08-14 21:08:50 +02001542};
1543
Jean Delvare2d8672c2005-07-19 23:56:35 +02001544/* SuperIO detection - will change isa_address if a chip is found */
corentin.labbeb74f3fd2007-06-13 20:27:36 +02001545static int __init it87_find(unsigned short *address,
1546 struct it87_sio_data *sio_data)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001547{
Nat Gurumoorthy5b0380c2011-05-25 20:43:33 +02001548 int err;
corentin.labbeb74f3fd2007-06-13 20:27:36 +02001549 u16 chip_type;
Jean Delvare98dd22c2008-10-09 15:33:58 +02001550 const char *board_vendor, *board_name;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001551
Nat Gurumoorthy5b0380c2011-05-25 20:43:33 +02001552 err = superio_enter();
1553 if (err)
1554 return err;
1555
1556 err = -ENODEV;
Jean Delvare67b671b2007-12-06 23:13:42 +01001557 chip_type = force_id ? force_id : superio_inw(DEVID);
corentin.labbeb74f3fd2007-06-13 20:27:36 +02001558
1559 switch (chip_type) {
1560 case IT8705F_DEVID:
1561 sio_data->type = it87;
1562 break;
1563 case IT8712F_DEVID:
1564 sio_data->type = it8712;
1565 break;
1566 case IT8716F_DEVID:
1567 case IT8726F_DEVID:
1568 sio_data->type = it8716;
1569 break;
1570 case IT8718F_DEVID:
1571 sio_data->type = it8718;
1572 break;
Jean-Marc Spaggiarib4da93e2009-01-07 16:37:32 +01001573 case IT8720F_DEVID:
1574 sio_data->type = it8720;
1575 break;
Jean Delvare44c1bcd2010-10-28 20:31:51 +02001576 case IT8721F_DEVID:
1577 sio_data->type = it8721;
1578 break;
corentin.labbeb74f3fd2007-06-13 20:27:36 +02001579 case 0xffff: /* No device at all */
1580 goto exit;
1581 default:
Joe Perchesa8ca1032011-01-12 21:55:10 +01001582 pr_debug("Unsupported chip (DEVID=0x%x)\n", chip_type);
corentin.labbeb74f3fd2007-06-13 20:27:36 +02001583 goto exit;
1584 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001585
Jean Delvare87673dd2006-08-28 14:37:19 +02001586 superio_select(PME);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001587 if (!(superio_inb(IT87_ACT_REG) & 0x01)) {
Joe Perchesa8ca1032011-01-12 21:55:10 +01001588 pr_info("Device not activated, skipping\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07001589 goto exit;
1590 }
1591
1592 *address = superio_inw(IT87_BASE_REG) & ~(IT87_EXTENT - 1);
1593 if (*address == 0) {
Joe Perchesa8ca1032011-01-12 21:55:10 +01001594 pr_info("Base address not set, skipping\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07001595 goto exit;
1596 }
1597
1598 err = 0;
Andrew Paprocki04751692008-08-06 22:41:06 +02001599 sio_data->revision = superio_inb(DEVREV) & 0x0f;
Joe Perchesa8ca1032011-01-12 21:55:10 +01001600 pr_info("Found IT%04xF chip at 0x%x, revision %d\n",
Andrew Paprocki04751692008-08-06 22:41:06 +02001601 chip_type, *address, sio_data->revision);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001602
Jean Delvare738e5e02010-08-14 21:08:50 +02001603 /* in8 (Vbat) is always internal */
1604 sio_data->internal = (1 << 2);
1605
Jean Delvare87673dd2006-08-28 14:37:19 +02001606 /* Read GPIO config and VID value from LDN 7 (GPIO) */
Jean Delvare895ff262009-12-09 20:35:47 +01001607 if (sio_data->type == it87) {
1608 /* The IT8705F doesn't have VID pins at all */
1609 sio_data->skip_vid = 1;
Jean Delvared9b327c2010-03-05 22:17:17 +01001610
1611 /* The IT8705F has a different LD number for GPIO */
1612 superio_select(5);
1613 sio_data->beep_pin = superio_inb(IT87_SIO_BEEP_PIN_REG) & 0x3f;
Jean Delvare895ff262009-12-09 20:35:47 +01001614 } else {
Jean Delvare87673dd2006-08-28 14:37:19 +02001615 int reg;
1616
1617 superio_select(GPIO);
Jean Delvare44c1bcd2010-10-28 20:31:51 +02001618
Jean Delvare895ff262009-12-09 20:35:47 +01001619 reg = superio_inb(IT87_SIO_GPIO3_REG);
Jean Delvare44c1bcd2010-10-28 20:31:51 +02001620 if (sio_data->type == it8721) {
1621 /* The IT8721F/IT8758E doesn't have VID pins at all */
Jean Delvare895ff262009-12-09 20:35:47 +01001622 sio_data->skip_vid = 1;
Jean Delvare44c1bcd2010-10-28 20:31:51 +02001623 } else {
1624 /* We need at least 4 VID pins */
1625 if (reg & 0x0f) {
Joe Perchesa8ca1032011-01-12 21:55:10 +01001626 pr_info("VID is disabled (pins used for GPIO)\n");
Jean Delvare44c1bcd2010-10-28 20:31:51 +02001627 sio_data->skip_vid = 1;
1628 }
Jean Delvare895ff262009-12-09 20:35:47 +01001629 }
1630
Jean Delvare591ec652009-12-09 20:35:48 +01001631 /* Check if fan3 is there or not */
1632 if (reg & (1 << 6))
1633 sio_data->skip_pwm |= (1 << 2);
1634 if (reg & (1 << 7))
1635 sio_data->skip_fan |= (1 << 2);
1636
1637 /* Check if fan2 is there or not */
1638 reg = superio_inb(IT87_SIO_GPIO5_REG);
1639 if (reg & (1 << 1))
1640 sio_data->skip_pwm |= (1 << 1);
1641 if (reg & (1 << 2))
1642 sio_data->skip_fan |= (1 << 1);
1643
Jean Delvare895ff262009-12-09 20:35:47 +01001644 if ((sio_data->type == it8718 || sio_data->type == it8720)
1645 && !(sio_data->skip_vid))
corentin.labbeb74f3fd2007-06-13 20:27:36 +02001646 sio_data->vid_value = superio_inb(IT87_SIO_VID_REG);
Jean Delvare87673dd2006-08-28 14:37:19 +02001647
1648 reg = superio_inb(IT87_SIO_PINX2_REG);
Jean Delvare436cad22010-07-09 16:22:48 +02001649 /*
1650 * The IT8720F has no VIN7 pin, so VCCH should always be
1651 * routed internally to VIN7 with an internal divider.
1652 * Curiously, there still is a configuration bit to control
1653 * this, which means it can be set incorrectly. And even
1654 * more curiously, many boards out there are improperly
1655 * configured, even though the IT8720F datasheet claims
1656 * that the internal routing of VCCH to VIN7 is the default
1657 * setting. So we force the internal routing in this case.
1658 */
1659 if (sio_data->type == it8720 && !(reg & (1 << 1))) {
1660 reg |= (1 << 1);
1661 superio_outb(IT87_SIO_PINX2_REG, reg);
Joe Perchesa8ca1032011-01-12 21:55:10 +01001662 pr_notice("Routing internal VCCH to in7\n");
Jean Delvare436cad22010-07-09 16:22:48 +02001663 }
Jean Delvare87673dd2006-08-28 14:37:19 +02001664 if (reg & (1 << 0))
Jean Delvare738e5e02010-08-14 21:08:50 +02001665 sio_data->internal |= (1 << 0);
Jean Delvare44c1bcd2010-10-28 20:31:51 +02001666 if ((reg & (1 << 1)) || sio_data->type == it8721)
Jean Delvare738e5e02010-08-14 21:08:50 +02001667 sio_data->internal |= (1 << 1);
Jean Delvared9b327c2010-03-05 22:17:17 +01001668
1669 sio_data->beep_pin = superio_inb(IT87_SIO_BEEP_PIN_REG) & 0x3f;
Jean Delvare87673dd2006-08-28 14:37:19 +02001670 }
Jean Delvared9b327c2010-03-05 22:17:17 +01001671 if (sio_data->beep_pin)
Joe Perchesa8ca1032011-01-12 21:55:10 +01001672 pr_info("Beeping is supported\n");
Jean Delvare87673dd2006-08-28 14:37:19 +02001673
Jean Delvare98dd22c2008-10-09 15:33:58 +02001674 /* Disable specific features based on DMI strings */
1675 board_vendor = dmi_get_system_info(DMI_BOARD_VENDOR);
1676 board_name = dmi_get_system_info(DMI_BOARD_NAME);
1677 if (board_vendor && board_name) {
1678 if (strcmp(board_vendor, "nVIDIA") == 0
1679 && strcmp(board_name, "FN68PT") == 0) {
1680 /* On the Shuttle SN68PT, FAN_CTL2 is apparently not
1681 connected to a fan, but to something else. One user
1682 has reported instant system power-off when changing
1683 the PWM2 duty cycle, so we disable it.
1684 I use the board name string as the trigger in case
1685 the same board is ever used in other systems. */
Joe Perchesa8ca1032011-01-12 21:55:10 +01001686 pr_info("Disabling pwm2 due to hardware constraints\n");
Jean Delvare98dd22c2008-10-09 15:33:58 +02001687 sio_data->skip_pwm = (1 << 1);
1688 }
1689 }
1690
Linus Torvalds1da177e2005-04-16 15:20:36 -07001691exit:
1692 superio_exit();
1693 return err;
1694}
1695
Jean Delvare723a0aa2010-03-05 22:17:16 +01001696static void it87_remove_files(struct device *dev)
1697{
1698 struct it87_data *data = platform_get_drvdata(pdev);
1699 struct it87_sio_data *sio_data = dev->platform_data;
1700 const struct attribute_group *fan_group = it87_get_fan_group(data);
1701 int i;
1702
1703 sysfs_remove_group(&dev->kobj, &it87_group);
Jean Delvared9b327c2010-03-05 22:17:17 +01001704 if (sio_data->beep_pin)
1705 sysfs_remove_group(&dev->kobj, &it87_group_beep);
Jean Delvare723a0aa2010-03-05 22:17:16 +01001706 for (i = 0; i < 5; i++) {
1707 if (!(data->has_fan & (1 << i)))
1708 continue;
1709 sysfs_remove_group(&dev->kobj, &fan_group[i]);
Jean Delvared9b327c2010-03-05 22:17:17 +01001710 if (sio_data->beep_pin)
1711 sysfs_remove_file(&dev->kobj,
1712 it87_attributes_fan_beep[i]);
Jean Delvare723a0aa2010-03-05 22:17:16 +01001713 }
1714 for (i = 0; i < 3; i++) {
1715 if (sio_data->skip_pwm & (1 << 0))
1716 continue;
1717 sysfs_remove_group(&dev->kobj, &it87_group_pwm[i]);
Jean Delvare4f3f51b2010-03-05 22:17:21 +01001718 if (has_old_autopwm(data))
1719 sysfs_remove_group(&dev->kobj,
1720 &it87_group_autopwm[i]);
Jean Delvare723a0aa2010-03-05 22:17:16 +01001721 }
Jean Delvare6a8d7ac2010-03-05 22:17:16 +01001722 if (!sio_data->skip_vid)
1723 sysfs_remove_group(&dev->kobj, &it87_group_vid);
Jean Delvare738e5e02010-08-14 21:08:50 +02001724 sysfs_remove_group(&dev->kobj, &it87_group_label);
Jean Delvare723a0aa2010-03-05 22:17:16 +01001725}
1726
corentin.labbeb74f3fd2007-06-13 20:27:36 +02001727static int __devinit it87_probe(struct platform_device *pdev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001728{
Linus Torvalds1da177e2005-04-16 15:20:36 -07001729 struct it87_data *data;
corentin.labbeb74f3fd2007-06-13 20:27:36 +02001730 struct resource *res;
1731 struct device *dev = &pdev->dev;
1732 struct it87_sio_data *sio_data = dev->platform_data;
Jean Delvare723a0aa2010-03-05 22:17:16 +01001733 const struct attribute_group *fan_group;
1734 int err = 0, i;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001735 int enable_pwm_interface;
Jean Delvared9b327c2010-03-05 22:17:17 +01001736 int fan_beep_need_rw;
corentin.labbeb74f3fd2007-06-13 20:27:36 +02001737 static const char *names[] = {
1738 "it87",
1739 "it8712",
1740 "it8716",
1741 "it8718",
Jean-Marc Spaggiarib4da93e2009-01-07 16:37:32 +01001742 "it8720",
Jean Delvare44c1bcd2010-10-28 20:31:51 +02001743 "it8721",
corentin.labbeb74f3fd2007-06-13 20:27:36 +02001744 };
Linus Torvalds1da177e2005-04-16 15:20:36 -07001745
corentin.labbeb74f3fd2007-06-13 20:27:36 +02001746 res = platform_get_resource(pdev, IORESOURCE_IO, 0);
Bjorn Helgaas87b4b662008-01-22 07:21:03 -05001747 if (!request_region(res->start, IT87_EC_EXTENT, DRVNAME)) {
corentin.labbeb74f3fd2007-06-13 20:27:36 +02001748 dev_err(dev, "Failed to request region 0x%lx-0x%lx\n",
1749 (unsigned long)res->start,
Bjorn Helgaas87b4b662008-01-22 07:21:03 -05001750 (unsigned long)(res->start + IT87_EC_EXTENT - 1));
Jean Delvare8e9afcb2006-12-12 18:18:28 +01001751 err = -EBUSY;
1752 goto ERROR0;
1753 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001754
Jean Delvare5f2dc792010-03-05 22:17:18 +01001755 data = kzalloc(sizeof(struct it87_data), GFP_KERNEL);
1756 if (!data) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001757 err = -ENOMEM;
1758 goto ERROR1;
1759 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001760
corentin.labbeb74f3fd2007-06-13 20:27:36 +02001761 data->addr = res->start;
1762 data->type = sio_data->type;
Andrew Paprocki04751692008-08-06 22:41:06 +02001763 data->revision = sio_data->revision;
corentin.labbeb74f3fd2007-06-13 20:27:36 +02001764 data->name = names[sio_data->type];
Linus Torvalds1da177e2005-04-16 15:20:36 -07001765
1766 /* Now, we do the remaining detection. */
corentin.labbeb74f3fd2007-06-13 20:27:36 +02001767 if ((it87_read_value(data, IT87_REG_CONFIG) & 0x80)
1768 || it87_read_value(data, IT87_REG_CHIPID) != 0x90) {
Jean Delvare8e9afcb2006-12-12 18:18:28 +01001769 err = -ENODEV;
1770 goto ERROR2;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001771 }
1772
corentin.labbeb74f3fd2007-06-13 20:27:36 +02001773 platform_set_drvdata(pdev, data);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001774
Ingo Molnar9a61bf62006-01-18 23:19:26 +01001775 mutex_init(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001776
Linus Torvalds1da177e2005-04-16 15:20:36 -07001777 /* Check PWM configuration */
corentin.labbeb74f3fd2007-06-13 20:27:36 +02001778 enable_pwm_interface = it87_check_pwm(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001779
Jean Delvare44c1bcd2010-10-28 20:31:51 +02001780 /* Starting with IT8721F, we handle scaling of internal voltages */
1781 if (data->type == it8721) {
1782 if (sio_data->internal & (1 << 0))
1783 data->in_scaled |= (1 << 3); /* in3 is AVCC */
1784 if (sio_data->internal & (1 << 1))
1785 data->in_scaled |= (1 << 7); /* in7 is VSB */
1786 if (sio_data->internal & (1 << 2))
1787 data->in_scaled |= (1 << 8); /* in8 is Vbat */
1788 }
1789
Linus Torvalds1da177e2005-04-16 15:20:36 -07001790 /* Initialize the IT87 chip */
corentin.labbeb74f3fd2007-06-13 20:27:36 +02001791 it87_init_device(pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001792
1793 /* Register sysfs hooks */
Jean Delvare5f2dc792010-03-05 22:17:18 +01001794 err = sysfs_create_group(&dev->kobj, &it87_group);
1795 if (err)
corentin.labbeb74f3fd2007-06-13 20:27:36 +02001796 goto ERROR2;
Jean Delvare17d648b2006-08-28 14:23:46 +02001797
Jean Delvared9b327c2010-03-05 22:17:17 +01001798 if (sio_data->beep_pin) {
1799 err = sysfs_create_group(&dev->kobj, &it87_group_beep);
1800 if (err)
1801 goto ERROR4;
1802 }
1803
Jean Delvare9060f8b2006-08-28 14:24:17 +02001804 /* Do not create fan files for disabled fans */
Jean Delvare723a0aa2010-03-05 22:17:16 +01001805 fan_group = it87_get_fan_group(data);
Jean Delvared9b327c2010-03-05 22:17:17 +01001806 fan_beep_need_rw = 1;
Jean Delvare723a0aa2010-03-05 22:17:16 +01001807 for (i = 0; i < 5; i++) {
1808 if (!(data->has_fan & (1 << i)))
1809 continue;
1810 err = sysfs_create_group(&dev->kobj, &fan_group[i]);
1811 if (err)
1812 goto ERROR4;
Jean Delvared9b327c2010-03-05 22:17:17 +01001813
1814 if (sio_data->beep_pin) {
1815 err = sysfs_create_file(&dev->kobj,
1816 it87_attributes_fan_beep[i]);
1817 if (err)
1818 goto ERROR4;
1819 if (!fan_beep_need_rw)
1820 continue;
1821
1822 /* As we have a single beep enable bit for all fans,
1823 * only the first enabled fan has a writable attribute
1824 * for it. */
1825 if (sysfs_chmod_file(&dev->kobj,
1826 it87_attributes_fan_beep[i],
1827 S_IRUGO | S_IWUSR))
1828 dev_dbg(dev, "chmod +w fan%d_beep failed\n",
1829 i + 1);
1830 fan_beep_need_rw = 0;
1831 }
Jean Delvare17d648b2006-08-28 14:23:46 +02001832 }
1833
Linus Torvalds1da177e2005-04-16 15:20:36 -07001834 if (enable_pwm_interface) {
Jean Delvare723a0aa2010-03-05 22:17:16 +01001835 for (i = 0; i < 3; i++) {
1836 if (sio_data->skip_pwm & (1 << i))
1837 continue;
1838 err = sysfs_create_group(&dev->kobj,
1839 &it87_group_pwm[i]);
1840 if (err)
Jean Delvare98dd22c2008-10-09 15:33:58 +02001841 goto ERROR4;
Jean Delvare4f3f51b2010-03-05 22:17:21 +01001842
1843 if (!has_old_autopwm(data))
1844 continue;
1845 err = sysfs_create_group(&dev->kobj,
1846 &it87_group_autopwm[i]);
1847 if (err)
1848 goto ERROR4;
Jean Delvare98dd22c2008-10-09 15:33:58 +02001849 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001850 }
1851
Jean Delvare895ff262009-12-09 20:35:47 +01001852 if (!sio_data->skip_vid) {
Jean Delvare303760b2005-07-31 21:52:01 +02001853 data->vrm = vid_which_vrm();
Jean Delvare87673dd2006-08-28 14:37:19 +02001854 /* VID reading from Super-I/O config space if available */
corentin.labbeb74f3fd2007-06-13 20:27:36 +02001855 data->vid = sio_data->vid_value;
Jean Delvare6a8d7ac2010-03-05 22:17:16 +01001856 err = sysfs_create_group(&dev->kobj, &it87_group_vid);
1857 if (err)
Jean Delvare87808be2006-09-24 21:17:13 +02001858 goto ERROR4;
1859 }
1860
Jean Delvare738e5e02010-08-14 21:08:50 +02001861 /* Export labels for internal sensors */
1862 for (i = 0; i < 3; i++) {
1863 if (!(sio_data->internal & (1 << i)))
1864 continue;
1865 err = sysfs_create_file(&dev->kobj,
1866 it87_attributes_label[i]);
1867 if (err)
1868 goto ERROR4;
1869 }
1870
Tony Jones1beeffe2007-08-20 13:46:20 -07001871 data->hwmon_dev = hwmon_device_register(dev);
1872 if (IS_ERR(data->hwmon_dev)) {
1873 err = PTR_ERR(data->hwmon_dev);
Jean Delvare87808be2006-09-24 21:17:13 +02001874 goto ERROR4;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001875 }
1876
1877 return 0;
1878
Jean Delvare87808be2006-09-24 21:17:13 +02001879ERROR4:
Jean Delvare723a0aa2010-03-05 22:17:16 +01001880 it87_remove_files(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001881ERROR2:
corentin.labbeb74f3fd2007-06-13 20:27:36 +02001882 platform_set_drvdata(pdev, NULL);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001883 kfree(data);
1884ERROR1:
Bjorn Helgaas87b4b662008-01-22 07:21:03 -05001885 release_region(res->start, IT87_EC_EXTENT);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001886ERROR0:
1887 return err;
1888}
1889
corentin.labbeb74f3fd2007-06-13 20:27:36 +02001890static int __devexit it87_remove(struct platform_device *pdev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001891{
corentin.labbeb74f3fd2007-06-13 20:27:36 +02001892 struct it87_data *data = platform_get_drvdata(pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001893
Tony Jones1beeffe2007-08-20 13:46:20 -07001894 hwmon_device_unregister(data->hwmon_dev);
Jean Delvare723a0aa2010-03-05 22:17:16 +01001895 it87_remove_files(&pdev->dev);
Mark M. Hoffman943b0832005-07-15 21:39:18 -04001896
Bjorn Helgaas87b4b662008-01-22 07:21:03 -05001897 release_region(data->addr, IT87_EC_EXTENT);
corentin.labbeb74f3fd2007-06-13 20:27:36 +02001898 platform_set_drvdata(pdev, NULL);
Mark M. Hoffman943b0832005-07-15 21:39:18 -04001899 kfree(data);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001900
1901 return 0;
1902}
1903
Jean Delvare7f999aa2007-02-14 21:15:03 +01001904/* Must be called with data->update_lock held, except during initialization.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001905 We ignore the IT87 BUSY flag at this moment - it could lead to deadlocks,
1906 would slow down the IT87 access and should not be necessary. */
corentin.labbeb74f3fd2007-06-13 20:27:36 +02001907static int it87_read_value(struct it87_data *data, u8 reg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001908{
corentin.labbeb74f3fd2007-06-13 20:27:36 +02001909 outb_p(reg, data->addr + IT87_ADDR_REG_OFFSET);
1910 return inb_p(data->addr + IT87_DATA_REG_OFFSET);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001911}
1912
Jean Delvare7f999aa2007-02-14 21:15:03 +01001913/* Must be called with data->update_lock held, except during initialization.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001914 We ignore the IT87 BUSY flag at this moment - it could lead to deadlocks,
1915 would slow down the IT87 access and should not be necessary. */
corentin.labbeb74f3fd2007-06-13 20:27:36 +02001916static void it87_write_value(struct it87_data *data, u8 reg, u8 value)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001917{
corentin.labbeb74f3fd2007-06-13 20:27:36 +02001918 outb_p(reg, data->addr + IT87_ADDR_REG_OFFSET);
1919 outb_p(value, data->addr + IT87_DATA_REG_OFFSET);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001920}
1921
1922/* Return 1 if and only if the PWM interface is safe to use */
corentin.labbeb74f3fd2007-06-13 20:27:36 +02001923static int __devinit it87_check_pwm(struct device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001924{
corentin.labbeb74f3fd2007-06-13 20:27:36 +02001925 struct it87_data *data = dev_get_drvdata(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001926 /* Some BIOSes fail to correctly configure the IT87 fans. All fans off
1927 * and polarity set to active low is sign that this is the case so we
1928 * disable pwm control to protect the user. */
corentin.labbeb74f3fd2007-06-13 20:27:36 +02001929 int tmp = it87_read_value(data, IT87_REG_FAN_CTL);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001930 if ((tmp & 0x87) == 0) {
1931 if (fix_pwm_polarity) {
1932 /* The user asks us to attempt a chip reconfiguration.
1933 * This means switching to active high polarity and
1934 * inverting all fan speed values. */
1935 int i;
1936 u8 pwm[3];
1937
1938 for (i = 0; i < 3; i++)
corentin.labbeb74f3fd2007-06-13 20:27:36 +02001939 pwm[i] = it87_read_value(data,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001940 IT87_REG_PWM(i));
1941
1942 /* If any fan is in automatic pwm mode, the polarity
1943 * might be correct, as suspicious as it seems, so we
1944 * better don't change anything (but still disable the
1945 * PWM interface). */
1946 if (!((pwm[0] | pwm[1] | pwm[2]) & 0x80)) {
corentin.labbeb74f3fd2007-06-13 20:27:36 +02001947 dev_info(dev, "Reconfiguring PWM to "
Linus Torvalds1da177e2005-04-16 15:20:36 -07001948 "active high polarity\n");
corentin.labbeb74f3fd2007-06-13 20:27:36 +02001949 it87_write_value(data, IT87_REG_FAN_CTL,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001950 tmp | 0x87);
1951 for (i = 0; i < 3; i++)
corentin.labbeb74f3fd2007-06-13 20:27:36 +02001952 it87_write_value(data,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001953 IT87_REG_PWM(i),
1954 0x7f & ~pwm[i]);
1955 return 1;
1956 }
1957
corentin.labbeb74f3fd2007-06-13 20:27:36 +02001958 dev_info(dev, "PWM configuration is "
Linus Torvalds1da177e2005-04-16 15:20:36 -07001959 "too broken to be fixed\n");
1960 }
1961
corentin.labbeb74f3fd2007-06-13 20:27:36 +02001962 dev_info(dev, "Detected broken BIOS "
Linus Torvalds1da177e2005-04-16 15:20:36 -07001963 "defaults, disabling PWM interface\n");
1964 return 0;
1965 } else if (fix_pwm_polarity) {
corentin.labbeb74f3fd2007-06-13 20:27:36 +02001966 dev_info(dev, "PWM configuration looks "
Linus Torvalds1da177e2005-04-16 15:20:36 -07001967 "sane, won't touch\n");
1968 }
1969
1970 return 1;
1971}
1972
1973/* Called when we have found a new IT87. */
corentin.labbeb74f3fd2007-06-13 20:27:36 +02001974static void __devinit it87_init_device(struct platform_device *pdev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001975{
Jean Delvare591ec652009-12-09 20:35:48 +01001976 struct it87_sio_data *sio_data = pdev->dev.platform_data;
corentin.labbeb74f3fd2007-06-13 20:27:36 +02001977 struct it87_data *data = platform_get_drvdata(pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001978 int tmp, i;
Jean Delvare591ec652009-12-09 20:35:48 +01001979 u8 mask;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001980
Jean Delvareb99883d2010-03-05 22:17:15 +01001981 /* For each PWM channel:
1982 * - If it is in automatic mode, setting to manual mode should set
1983 * the fan to full speed by default.
1984 * - If it is in manual mode, we need a mapping to temperature
1985 * channels to use when later setting to automatic mode later.
1986 * Use a 1:1 mapping by default (we are clueless.)
1987 * In both cases, the value can (and should) be changed by the user
Jean Delvare6229cdb2010-12-08 16:27:22 +01001988 * prior to switching to a different mode.
1989 * Note that this is no longer needed for the IT8721F and later, as
1990 * these have separate registers for the temperature mapping and the
1991 * manual duty cycle. */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001992 for (i = 0; i < 3; i++) {
Jean Delvareb99883d2010-03-05 22:17:15 +01001993 data->pwm_temp_map[i] = i;
1994 data->pwm_duty[i] = 0x7f; /* Full speed */
Jean Delvare4f3f51b2010-03-05 22:17:21 +01001995 data->auto_pwm[i][3] = 0x7f; /* Full speed, hard-coded */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001996 }
1997
Jean Delvarec5df9b72006-08-28 14:37:54 +02001998 /* Some chips seem to have default value 0xff for all limit
1999 * registers. For low voltage limits it makes no sense and triggers
2000 * alarms, so change to 0 instead. For high temperature limits, it
2001 * means -1 degree C, which surprisingly doesn't trigger an alarm,
2002 * but is still confusing, so change to 127 degrees C. */
2003 for (i = 0; i < 8; i++) {
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002004 tmp = it87_read_value(data, IT87_REG_VIN_MIN(i));
Jean Delvarec5df9b72006-08-28 14:37:54 +02002005 if (tmp == 0xff)
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002006 it87_write_value(data, IT87_REG_VIN_MIN(i), 0);
Jean Delvarec5df9b72006-08-28 14:37:54 +02002007 }
2008 for (i = 0; i < 3; i++) {
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002009 tmp = it87_read_value(data, IT87_REG_TEMP_HIGH(i));
Jean Delvarec5df9b72006-08-28 14:37:54 +02002010 if (tmp == 0xff)
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002011 it87_write_value(data, IT87_REG_TEMP_HIGH(i), 127);
Jean Delvarec5df9b72006-08-28 14:37:54 +02002012 }
2013
Jean Delvarea00afb92010-04-14 16:14:09 +02002014 /* Temperature channels are not forcibly enabled, as they can be
2015 * set to two different sensor types and we can't guess which one
2016 * is correct for a given system. These channels can be enabled at
2017 * run-time through the temp{1-3}_type sysfs accessors if needed. */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002018
2019 /* Check if voltage monitors are reset manually or by some reason */
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002020 tmp = it87_read_value(data, IT87_REG_VIN_ENABLE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002021 if ((tmp & 0xff) == 0) {
2022 /* Enable all voltage monitors */
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002023 it87_write_value(data, IT87_REG_VIN_ENABLE, 0xff);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002024 }
2025
2026 /* Check if tachometers are reset manually or by some reason */
Jean Delvare591ec652009-12-09 20:35:48 +01002027 mask = 0x70 & ~(sio_data->skip_fan << 4);
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002028 data->fan_main_ctrl = it87_read_value(data, IT87_REG_FAN_MAIN_CTRL);
Jean Delvare591ec652009-12-09 20:35:48 +01002029 if ((data->fan_main_ctrl & mask) == 0) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002030 /* Enable all fan tachometers */
Jean Delvare591ec652009-12-09 20:35:48 +01002031 data->fan_main_ctrl |= mask;
Jean Delvare5f2dc792010-03-05 22:17:18 +01002032 it87_write_value(data, IT87_REG_FAN_MAIN_CTRL,
2033 data->fan_main_ctrl);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002034 }
Jean Delvare9060f8b2006-08-28 14:24:17 +02002035 data->has_fan = (data->fan_main_ctrl >> 4) & 0x07;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002036
Jean Delvare17d648b2006-08-28 14:23:46 +02002037 /* Set tachometers to 16-bit mode if needed */
Andrew Paprocki04751692008-08-06 22:41:06 +02002038 if (has_16bit_fans(data)) {
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002039 tmp = it87_read_value(data, IT87_REG_FAN_16BIT);
Jean Delvare9060f8b2006-08-28 14:24:17 +02002040 if (~tmp & 0x07 & data->has_fan) {
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002041 dev_dbg(&pdev->dev,
Jean Delvare17d648b2006-08-28 14:23:46 +02002042 "Setting fan1-3 to 16-bit mode\n");
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002043 it87_write_value(data, IT87_REG_FAN_16BIT,
Jean Delvare17d648b2006-08-28 14:23:46 +02002044 tmp | 0x07);
2045 }
Andrew Paprocki816d8c62008-08-06 22:41:06 +02002046 /* IT8705F only supports three fans. */
2047 if (data->type != it87) {
2048 if (tmp & (1 << 4))
2049 data->has_fan |= (1 << 3); /* fan4 enabled */
2050 if (tmp & (1 << 5))
2051 data->has_fan |= (1 << 4); /* fan5 enabled */
2052 }
Jean Delvare17d648b2006-08-28 14:23:46 +02002053 }
2054
Jean Delvare591ec652009-12-09 20:35:48 +01002055 /* Fan input pins may be used for alternative functions */
2056 data->has_fan &= ~sio_data->skip_fan;
2057
Linus Torvalds1da177e2005-04-16 15:20:36 -07002058 /* Start monitoring */
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002059 it87_write_value(data, IT87_REG_CONFIG,
2060 (it87_read_value(data, IT87_REG_CONFIG) & 0x36)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002061 | (update_vbat ? 0x41 : 0x01));
2062}
2063
Jean Delvareb99883d2010-03-05 22:17:15 +01002064static void it87_update_pwm_ctrl(struct it87_data *data, int nr)
2065{
2066 data->pwm_ctrl[nr] = it87_read_value(data, IT87_REG_PWM(nr));
Jean Delvare6229cdb2010-12-08 16:27:22 +01002067 if (data->type == it8721) {
Jean Delvareb99883d2010-03-05 22:17:15 +01002068 data->pwm_temp_map[nr] = data->pwm_ctrl[nr] & 0x03;
Jean Delvare6229cdb2010-12-08 16:27:22 +01002069 data->pwm_duty[nr] = it87_read_value(data,
2070 IT87_REG_PWM_DUTY(nr));
2071 } else {
2072 if (data->pwm_ctrl[nr] & 0x80) /* Automatic mode */
2073 data->pwm_temp_map[nr] = data->pwm_ctrl[nr] & 0x03;
2074 else /* Manual mode */
2075 data->pwm_duty[nr] = data->pwm_ctrl[nr] & 0x7f;
2076 }
Jean Delvare4f3f51b2010-03-05 22:17:21 +01002077
2078 if (has_old_autopwm(data)) {
2079 int i;
2080
2081 for (i = 0; i < 5 ; i++)
2082 data->auto_temp[nr][i] = it87_read_value(data,
2083 IT87_REG_AUTO_TEMP(nr, i));
2084 for (i = 0; i < 3 ; i++)
2085 data->auto_pwm[nr][i] = it87_read_value(data,
2086 IT87_REG_AUTO_PWM(nr, i));
2087 }
Jean Delvareb99883d2010-03-05 22:17:15 +01002088}
2089
Linus Torvalds1da177e2005-04-16 15:20:36 -07002090static struct it87_data *it87_update_device(struct device *dev)
2091{
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002092 struct it87_data *data = dev_get_drvdata(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002093 int i;
2094
Ingo Molnar9a61bf62006-01-18 23:19:26 +01002095 mutex_lock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002096
2097 if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
2098 || !data->valid) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002099 if (update_vbat) {
2100 /* Cleared after each update, so reenable. Value
Jean Delvare5f2dc792010-03-05 22:17:18 +01002101 returned by this read will be previous value */
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002102 it87_write_value(data, IT87_REG_CONFIG,
Jean Delvare5f2dc792010-03-05 22:17:18 +01002103 it87_read_value(data, IT87_REG_CONFIG) | 0x40);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002104 }
2105 for (i = 0; i <= 7; i++) {
2106 data->in[i] =
Jean Delvare5f2dc792010-03-05 22:17:18 +01002107 it87_read_value(data, IT87_REG_VIN(i));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002108 data->in_min[i] =
Jean Delvare5f2dc792010-03-05 22:17:18 +01002109 it87_read_value(data, IT87_REG_VIN_MIN(i));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002110 data->in_max[i] =
Jean Delvare5f2dc792010-03-05 22:17:18 +01002111 it87_read_value(data, IT87_REG_VIN_MAX(i));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002112 }
Jean Delvare3543a532006-08-28 14:27:25 +02002113 /* in8 (battery) has no limit registers */
Jean Delvare5f2dc792010-03-05 22:17:18 +01002114 data->in[8] = it87_read_value(data, IT87_REG_VIN(8));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002115
Jean Delvarec7f1f712007-09-03 17:11:46 +02002116 for (i = 0; i < 5; i++) {
Jean Delvare9060f8b2006-08-28 14:24:17 +02002117 /* Skip disabled fans */
2118 if (!(data->has_fan & (1 << i)))
2119 continue;
2120
Linus Torvalds1da177e2005-04-16 15:20:36 -07002121 data->fan_min[i] =
Jean Delvare5f2dc792010-03-05 22:17:18 +01002122 it87_read_value(data, IT87_REG_FAN_MIN[i]);
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002123 data->fan[i] = it87_read_value(data,
Jean Delvarec7f1f712007-09-03 17:11:46 +02002124 IT87_REG_FAN[i]);
Jean Delvare17d648b2006-08-28 14:23:46 +02002125 /* Add high byte if in 16-bit mode */
Andrew Paprocki04751692008-08-06 22:41:06 +02002126 if (has_16bit_fans(data)) {
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002127 data->fan[i] |= it87_read_value(data,
Jean Delvarec7f1f712007-09-03 17:11:46 +02002128 IT87_REG_FANX[i]) << 8;
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002129 data->fan_min[i] |= it87_read_value(data,
Jean Delvarec7f1f712007-09-03 17:11:46 +02002130 IT87_REG_FANX_MIN[i]) << 8;
Jean Delvare17d648b2006-08-28 14:23:46 +02002131 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07002132 }
2133 for (i = 0; i < 3; i++) {
2134 data->temp[i] =
Jean Delvare5f2dc792010-03-05 22:17:18 +01002135 it87_read_value(data, IT87_REG_TEMP(i));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002136 data->temp_high[i] =
Jean Delvare5f2dc792010-03-05 22:17:18 +01002137 it87_read_value(data, IT87_REG_TEMP_HIGH(i));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002138 data->temp_low[i] =
Jean Delvare5f2dc792010-03-05 22:17:18 +01002139 it87_read_value(data, IT87_REG_TEMP_LOW(i));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002140 }
2141
Jean Delvare17d648b2006-08-28 14:23:46 +02002142 /* Newer chips don't have clock dividers */
Andrew Paprocki04751692008-08-06 22:41:06 +02002143 if ((data->has_fan & 0x07) && !has_16bit_fans(data)) {
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002144 i = it87_read_value(data, IT87_REG_FAN_DIV);
Jean Delvare17d648b2006-08-28 14:23:46 +02002145 data->fan_div[0] = i & 0x07;
2146 data->fan_div[1] = (i >> 3) & 0x07;
2147 data->fan_div[2] = (i & 0x40) ? 3 : 1;
2148 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07002149
2150 data->alarms =
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002151 it87_read_value(data, IT87_REG_ALARM1) |
2152 (it87_read_value(data, IT87_REG_ALARM2) << 8) |
2153 (it87_read_value(data, IT87_REG_ALARM3) << 16);
Jean Delvared9b327c2010-03-05 22:17:17 +01002154 data->beeps = it87_read_value(data, IT87_REG_BEEP_ENABLE);
Jean Delvareb99883d2010-03-05 22:17:15 +01002155
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002156 data->fan_main_ctrl = it87_read_value(data,
2157 IT87_REG_FAN_MAIN_CTRL);
2158 data->fan_ctl = it87_read_value(data, IT87_REG_FAN_CTL);
Jean Delvareb99883d2010-03-05 22:17:15 +01002159 for (i = 0; i < 3; i++)
2160 it87_update_pwm_ctrl(data, i);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002161
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002162 data->sensor = it87_read_value(data, IT87_REG_TEMP_ENABLE);
Andrew Paprocki04751692008-08-06 22:41:06 +02002163 /* The 8705 does not have VID capability.
Jean Delvare44c1bcd2010-10-28 20:31:51 +02002164 The 8718 and later don't use IT87_REG_VID for the
Jean-Marc Spaggiarib4da93e2009-01-07 16:37:32 +01002165 same purpose. */
Jean Delvare17d648b2006-08-28 14:23:46 +02002166 if (data->type == it8712 || data->type == it8716) {
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002167 data->vid = it87_read_value(data, IT87_REG_VID);
Jean Delvare17d648b2006-08-28 14:23:46 +02002168 /* The older IT8712F revisions had only 5 VID pins,
2169 but we assume it is always safe to read 6 bits. */
2170 data->vid &= 0x3f;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002171 }
2172 data->last_updated = jiffies;
2173 data->valid = 1;
2174 }
2175
Ingo Molnar9a61bf62006-01-18 23:19:26 +01002176 mutex_unlock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002177
2178 return data;
2179}
2180
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002181static int __init it87_device_add(unsigned short address,
2182 const struct it87_sio_data *sio_data)
2183{
2184 struct resource res = {
Bjorn Helgaas87b4b662008-01-22 07:21:03 -05002185 .start = address + IT87_EC_OFFSET,
2186 .end = address + IT87_EC_OFFSET + IT87_EC_EXTENT - 1,
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002187 .name = DRVNAME,
2188 .flags = IORESOURCE_IO,
2189 };
2190 int err;
2191
Jean Delvareb9acb642009-01-07 16:37:35 +01002192 err = acpi_check_resource_conflict(&res);
2193 if (err)
2194 goto exit;
2195
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002196 pdev = platform_device_alloc(DRVNAME, address);
2197 if (!pdev) {
2198 err = -ENOMEM;
Joe Perchesa8ca1032011-01-12 21:55:10 +01002199 pr_err("Device allocation failed\n");
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002200 goto exit;
2201 }
2202
2203 err = platform_device_add_resources(pdev, &res, 1);
2204 if (err) {
Joe Perchesa8ca1032011-01-12 21:55:10 +01002205 pr_err("Device resource addition failed (%d)\n", err);
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002206 goto exit_device_put;
2207 }
2208
2209 err = platform_device_add_data(pdev, sio_data,
2210 sizeof(struct it87_sio_data));
2211 if (err) {
Joe Perchesa8ca1032011-01-12 21:55:10 +01002212 pr_err("Platform data allocation failed\n");
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002213 goto exit_device_put;
2214 }
2215
2216 err = platform_device_add(pdev);
2217 if (err) {
Joe Perchesa8ca1032011-01-12 21:55:10 +01002218 pr_err("Device addition failed (%d)\n", err);
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002219 goto exit_device_put;
2220 }
2221
2222 return 0;
2223
2224exit_device_put:
2225 platform_device_put(pdev);
2226exit:
2227 return err;
2228}
2229
Linus Torvalds1da177e2005-04-16 15:20:36 -07002230static int __init sm_it87_init(void)
2231{
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002232 int err;
Jean Delvare5f2dc792010-03-05 22:17:18 +01002233 unsigned short isa_address = 0;
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002234 struct it87_sio_data sio_data;
Jean Delvarefde09502005-07-19 23:51:07 +02002235
Jean Delvare98dd22c2008-10-09 15:33:58 +02002236 memset(&sio_data, 0, sizeof(struct it87_sio_data));
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002237 err = it87_find(&isa_address, &sio_data);
2238 if (err)
2239 return err;
2240 err = platform_driver_register(&it87_driver);
2241 if (err)
2242 return err;
2243
2244 err = it87_device_add(isa_address, &sio_data);
Jean Delvare5f2dc792010-03-05 22:17:18 +01002245 if (err) {
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002246 platform_driver_unregister(&it87_driver);
2247 return err;
2248 }
2249
2250 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002251}
2252
2253static void __exit sm_it87_exit(void)
2254{
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002255 platform_device_unregister(pdev);
2256 platform_driver_unregister(&it87_driver);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002257}
2258
2259
Jean Delvaref1d8e332007-11-25 16:14:44 +01002260MODULE_AUTHOR("Chris Gauthron, "
Jean Delvareb19367c2006-08-28 14:39:26 +02002261 "Jean Delvare <khali@linux-fr.org>");
Jean Delvare44c1bcd2010-10-28 20:31:51 +02002262MODULE_DESCRIPTION("IT8705F/IT871xF/IT872xF hardware monitoring driver");
Linus Torvalds1da177e2005-04-16 15:20:36 -07002263module_param(update_vbat, bool, 0);
2264MODULE_PARM_DESC(update_vbat, "Update vbat if set else return powerup value");
2265module_param(fix_pwm_polarity, bool, 0);
Jean Delvare5f2dc792010-03-05 22:17:18 +01002266MODULE_PARM_DESC(fix_pwm_polarity,
2267 "Force PWM polarity to active high (DANGEROUS)");
Linus Torvalds1da177e2005-04-16 15:20:36 -07002268MODULE_LICENSE("GPL");
2269
2270module_init(sm_it87_init);
2271module_exit(sm_it87_exit);