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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 Delvare16b5dda2012-01-16 22:51:48 +010020 * IT8728F Super I/O chip w/LPC interface
Jean Delvare44c1bcd2010-10-28 20:31:51 +020021 * IT8758E Super I/O chip w/LPC interface
Guenter Roeckb0636702012-09-07 17:34:41 -060022 * IT8771E Super I/O chip w/LPC interface
23 * IT8772E Super I/O chip w/LPC interface
Guenter Roeck0531d982012-03-02 11:46:44 -080024 * IT8782F Super I/O chip w/LPC interface
25 * IT8783E/F Super I/O chip w/LPC interface
Jean Delvare5f2dc792010-03-05 22:17:18 +010026 * Sis950 A clone of the IT8705F
27 *
28 * Copyright (C) 2001 Chris Gauthron
29 * Copyright (C) 2005-2010 Jean Delvare <khali@linux-fr.org>
30 *
31 * This program is free software; you can redistribute it and/or modify
32 * it under the terms of the GNU General Public License as published by
33 * the Free Software Foundation; either version 2 of the License, or
34 * (at your option) any later version.
35 *
36 * This program is distributed in the hope that it will be useful,
37 * but WITHOUT ANY WARRANTY; without even the implied warranty of
38 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
39 * GNU General Public License for more details.
40 *
41 * You should have received a copy of the GNU General Public License
42 * along with this program; if not, write to the Free Software
43 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
44 */
Linus Torvalds1da177e2005-04-16 15:20:36 -070045
Joe Perchesa8ca1032011-01-12 21:55:10 +010046#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
47
Linus Torvalds1da177e2005-04-16 15:20:36 -070048#include <linux/module.h>
49#include <linux/init.h>
50#include <linux/slab.h>
51#include <linux/jiffies.h>
corentin.labbeb74f3fd2007-06-13 20:27:36 +020052#include <linux/platform_device.h>
Mark M. Hoffman943b0832005-07-15 21:39:18 -040053#include <linux/hwmon.h>
Jean Delvare303760b2005-07-31 21:52:01 +020054#include <linux/hwmon-sysfs.h>
55#include <linux/hwmon-vid.h>
Mark M. Hoffman943b0832005-07-15 21:39:18 -040056#include <linux/err.h>
Ingo Molnar9a61bf62006-01-18 23:19:26 +010057#include <linux/mutex.h>
Jean Delvare87808be2006-09-24 21:17:13 +020058#include <linux/sysfs.h>
Jean Delvare98dd22c2008-10-09 15:33:58 +020059#include <linux/string.h>
60#include <linux/dmi.h>
Jean Delvareb9acb642009-01-07 16:37:35 +010061#include <linux/acpi.h>
H Hartley Sweeten6055fae2009-09-15 17:18:13 +020062#include <linux/io.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070063
corentin.labbeb74f3fd2007-06-13 20:27:36 +020064#define DRVNAME "it87"
Linus Torvalds1da177e2005-04-16 15:20:36 -070065
Guenter Roeckb0636702012-09-07 17:34:41 -060066enum chips { it87, it8712, it8716, it8718, it8720, it8721, it8728, it8771,
67 it8772, it8782, it8783 };
Linus Torvalds1da177e2005-04-16 15:20:36 -070068
Jean Delvare67b671b2007-12-06 23:13:42 +010069static unsigned short force_id;
70module_param(force_id, ushort, 0);
71MODULE_PARM_DESC(force_id, "Override the detected device ID");
72
corentin.labbeb74f3fd2007-06-13 20:27:36 +020073static struct platform_device *pdev;
74
Linus Torvalds1da177e2005-04-16 15:20:36 -070075#define REG 0x2e /* The register to read/write */
76#define DEV 0x07 /* Register: Logical device select */
77#define VAL 0x2f /* The value to read/write */
78#define PME 0x04 /* The device with the fan registers in it */
Jean-Marc Spaggiarib4da93e2009-01-07 16:37:32 +010079
80/* The device with the IT8718F/IT8720F VID value in it */
81#define GPIO 0x07
82
Linus Torvalds1da177e2005-04-16 15:20:36 -070083#define DEVID 0x20 /* Register: Device ID */
84#define DEVREV 0x22 /* Register: Device Revision */
85
Nat Gurumoorthy5b0380c2011-05-25 20:43:33 +020086static inline int superio_inb(int reg)
Linus Torvalds1da177e2005-04-16 15:20:36 -070087{
88 outb(reg, REG);
89 return inb(VAL);
90}
91
Nat Gurumoorthy5b0380c2011-05-25 20:43:33 +020092static inline void superio_outb(int reg, int val)
Jean Delvare436cad22010-07-09 16:22:48 +020093{
94 outb(reg, REG);
95 outb(val, VAL);
96}
97
Linus Torvalds1da177e2005-04-16 15:20:36 -070098static int superio_inw(int reg)
99{
100 int val;
101 outb(reg++, REG);
102 val = inb(VAL) << 8;
103 outb(reg, REG);
104 val |= inb(VAL);
105 return val;
106}
107
Nat Gurumoorthy5b0380c2011-05-25 20:43:33 +0200108static inline void superio_select(int ldn)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700109{
110 outb(DEV, REG);
Jean Delvare87673dd2006-08-28 14:37:19 +0200111 outb(ldn, VAL);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700112}
113
Nat Gurumoorthy5b0380c2011-05-25 20:43:33 +0200114static inline int superio_enter(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700115{
Nat Gurumoorthy5b0380c2011-05-25 20:43:33 +0200116 /*
117 * Try to reserve REG and REG + 1 for exclusive access.
118 */
119 if (!request_muxed_region(REG, 2, DRVNAME))
120 return -EBUSY;
121
Linus Torvalds1da177e2005-04-16 15:20:36 -0700122 outb(0x87, REG);
123 outb(0x01, REG);
124 outb(0x55, REG);
125 outb(0x55, REG);
Nat Gurumoorthy5b0380c2011-05-25 20:43:33 +0200126 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700127}
128
Nat Gurumoorthy5b0380c2011-05-25 20:43:33 +0200129static inline void superio_exit(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700130{
131 outb(0x02, REG);
132 outb(0x02, VAL);
Nat Gurumoorthy5b0380c2011-05-25 20:43:33 +0200133 release_region(REG, 2);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700134}
135
Jean Delvare87673dd2006-08-28 14:37:19 +0200136/* Logical device 4 registers */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700137#define IT8712F_DEVID 0x8712
138#define IT8705F_DEVID 0x8705
Jean Delvare17d648b2006-08-28 14:23:46 +0200139#define IT8716F_DEVID 0x8716
Jean Delvare87673dd2006-08-28 14:37:19 +0200140#define IT8718F_DEVID 0x8718
Jean-Marc Spaggiarib4da93e2009-01-07 16:37:32 +0100141#define IT8720F_DEVID 0x8720
Jean Delvare44c1bcd2010-10-28 20:31:51 +0200142#define IT8721F_DEVID 0x8721
Rudolf Marek08a8f6e2007-06-09 10:11:16 -0400143#define IT8726F_DEVID 0x8726
Jean Delvare16b5dda2012-01-16 22:51:48 +0100144#define IT8728F_DEVID 0x8728
Guenter Roeckb0636702012-09-07 17:34:41 -0600145#define IT8771E_DEVID 0x8771
146#define IT8772E_DEVID 0x8772
Guenter Roeck0531d982012-03-02 11:46:44 -0800147#define IT8782F_DEVID 0x8782
148#define IT8783E_DEVID 0x8783
Linus Torvalds1da177e2005-04-16 15:20:36 -0700149#define IT87_ACT_REG 0x30
150#define IT87_BASE_REG 0x60
151
Jean Delvare87673dd2006-08-28 14:37:19 +0200152/* Logical device 7 registers (IT8712F and later) */
Guenter Roeck0531d982012-03-02 11:46:44 -0800153#define IT87_SIO_GPIO1_REG 0x25
Jean Delvare895ff262009-12-09 20:35:47 +0100154#define IT87_SIO_GPIO3_REG 0x27
Jean Delvare591ec652009-12-09 20:35:48 +0100155#define IT87_SIO_GPIO5_REG 0x29
Guenter Roeck0531d982012-03-02 11:46:44 -0800156#define IT87_SIO_PINX1_REG 0x2a /* Pin selection */
Jean Delvare87673dd2006-08-28 14:37:19 +0200157#define IT87_SIO_PINX2_REG 0x2c /* Pin selection */
Guenter Roeck0531d982012-03-02 11:46:44 -0800158#define IT87_SIO_SPI_REG 0xef /* SPI function pin select */
Jean Delvare87673dd2006-08-28 14:37:19 +0200159#define IT87_SIO_VID_REG 0xfc /* VID value */
Jean Delvared9b327c2010-03-05 22:17:17 +0100160#define IT87_SIO_BEEP_PIN_REG 0xf6 /* Beep pin mapping */
Jean Delvare87673dd2006-08-28 14:37:19 +0200161
Linus Torvalds1da177e2005-04-16 15:20:36 -0700162/* Update battery voltage after every reading if true */
Rusty Russell90ab5ee2012-01-13 09:32:20 +1030163static bool update_vbat;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700164
165/* Not all BIOSes properly configure the PWM registers */
Rusty Russell90ab5ee2012-01-13 09:32:20 +1030166static bool fix_pwm_polarity;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700167
Linus Torvalds1da177e2005-04-16 15:20:36 -0700168/* Many IT87 constants specified below */
169
170/* Length of ISA address segment */
171#define IT87_EXTENT 8
172
Bjorn Helgaas87b4b662008-01-22 07:21:03 -0500173/* Length of ISA address segment for Environmental Controller */
174#define IT87_EC_EXTENT 2
175
176/* Offset of EC registers from ISA base address */
177#define IT87_EC_OFFSET 5
178
179/* Where are the ISA address/data registers relative to the EC base address */
180#define IT87_ADDR_REG_OFFSET 0
181#define IT87_DATA_REG_OFFSET 1
Linus Torvalds1da177e2005-04-16 15:20:36 -0700182
183/*----- The IT87 registers -----*/
184
185#define IT87_REG_CONFIG 0x00
186
187#define IT87_REG_ALARM1 0x01
188#define IT87_REG_ALARM2 0x02
189#define IT87_REG_ALARM3 0x03
190
Guenter Roeck4a0d71c2012-01-19 11:02:18 -0800191/*
192 * The IT8718F and IT8720F have the VID value in a different register, in
193 * Super-I/O configuration space.
194 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700195#define IT87_REG_VID 0x0a
Guenter Roeck4a0d71c2012-01-19 11:02:18 -0800196/*
197 * The IT8705F and IT8712F earlier than revision 0x08 use register 0x0b
198 * for fan divisors. Later IT8712F revisions must use 16-bit tachometer
199 * mode.
200 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700201#define IT87_REG_FAN_DIV 0x0b
Jean Delvare17d648b2006-08-28 14:23:46 +0200202#define IT87_REG_FAN_16BIT 0x0c
Linus Torvalds1da177e2005-04-16 15:20:36 -0700203
204/* Monitors: 9 voltage (0 to 7, battery), 3 temp (1 to 3), 3 fan (1 to 3) */
205
Jean Delvarec7f1f712007-09-03 17:11:46 +0200206static const u8 IT87_REG_FAN[] = { 0x0d, 0x0e, 0x0f, 0x80, 0x82 };
207static const u8 IT87_REG_FAN_MIN[] = { 0x10, 0x11, 0x12, 0x84, 0x86 };
208static const u8 IT87_REG_FANX[] = { 0x18, 0x19, 0x1a, 0x81, 0x83 };
209static const u8 IT87_REG_FANX_MIN[] = { 0x1b, 0x1c, 0x1d, 0x85, 0x87 };
Guenter Roeck161d8982012-12-19 22:17:01 +0100210static const u8 IT87_REG_TEMP_OFFSET[] = { 0x56, 0x57, 0x59 };
211
Linus Torvalds1da177e2005-04-16 15:20:36 -0700212#define IT87_REG_FAN_MAIN_CTRL 0x13
213#define IT87_REG_FAN_CTL 0x14
214#define IT87_REG_PWM(nr) (0x15 + (nr))
Jean Delvare6229cdb2010-12-08 16:27:22 +0100215#define IT87_REG_PWM_DUTY(nr) (0x63 + (nr) * 8)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700216
217#define IT87_REG_VIN(nr) (0x20 + (nr))
218#define IT87_REG_TEMP(nr) (0x29 + (nr))
219
220#define IT87_REG_VIN_MAX(nr) (0x30 + (nr) * 2)
221#define IT87_REG_VIN_MIN(nr) (0x31 + (nr) * 2)
222#define IT87_REG_TEMP_HIGH(nr) (0x40 + (nr) * 2)
223#define IT87_REG_TEMP_LOW(nr) (0x41 + (nr) * 2)
224
Linus Torvalds1da177e2005-04-16 15:20:36 -0700225#define IT87_REG_VIN_ENABLE 0x50
226#define IT87_REG_TEMP_ENABLE 0x51
Guenter Roeck4573acb2012-03-26 16:17:41 -0700227#define IT87_REG_TEMP_EXTRA 0x55
Jean Delvared9b327c2010-03-05 22:17:17 +0100228#define IT87_REG_BEEP_ENABLE 0x5c
Linus Torvalds1da177e2005-04-16 15:20:36 -0700229
230#define IT87_REG_CHIPID 0x58
231
Jean Delvare4f3f51b2010-03-05 22:17:21 +0100232#define IT87_REG_AUTO_TEMP(nr, i) (0x60 + (nr) * 8 + (i))
233#define IT87_REG_AUTO_PWM(nr, i) (0x65 + (nr) * 8 + (i))
234
Guenter Roeck483db432012-12-19 22:17:02 +0100235struct it87_devices {
236 const char *name;
237 u16 features;
Guenter Roeck19529782012-12-19 22:17:02 +0100238 u8 peci_mask;
239 u8 old_peci_mask;
Guenter Roeck483db432012-12-19 22:17:02 +0100240};
241
242#define FEAT_12MV_ADC (1 << 0)
243#define FEAT_NEWER_AUTOPWM (1 << 1)
244#define FEAT_OLD_AUTOPWM (1 << 2)
245#define FEAT_16BIT_FANS (1 << 3)
246#define FEAT_TEMP_OFFSET (1 << 4)
Guenter Roeck5d8d2f22012-12-19 22:17:02 +0100247#define FEAT_TEMP_PECI (1 << 5)
Guenter Roeck19529782012-12-19 22:17:02 +0100248#define FEAT_TEMP_OLD_PECI (1 << 6)
Guenter Roeck483db432012-12-19 22:17:02 +0100249
250static const struct it87_devices it87_devices[] = {
251 [it87] = {
252 .name = "it87",
253 .features = FEAT_OLD_AUTOPWM, /* may need to overwrite */
254 },
255 [it8712] = {
256 .name = "it8712",
257 .features = FEAT_OLD_AUTOPWM, /* may need to overwrite */
258 },
259 [it8716] = {
260 .name = "it8716",
261 .features = FEAT_16BIT_FANS | FEAT_TEMP_OFFSET,
262 },
263 [it8718] = {
264 .name = "it8718",
Guenter Roeck19529782012-12-19 22:17:02 +0100265 .features = FEAT_16BIT_FANS | FEAT_TEMP_OFFSET
266 | FEAT_TEMP_OLD_PECI,
267 .old_peci_mask = 0x4,
Guenter Roeck483db432012-12-19 22:17:02 +0100268 },
269 [it8720] = {
270 .name = "it8720",
Guenter Roeck19529782012-12-19 22:17:02 +0100271 .features = FEAT_16BIT_FANS | FEAT_TEMP_OFFSET
272 | FEAT_TEMP_OLD_PECI,
273 .old_peci_mask = 0x4,
Guenter Roeck483db432012-12-19 22:17:02 +0100274 },
275 [it8721] = {
276 .name = "it8721",
277 .features = FEAT_NEWER_AUTOPWM | FEAT_12MV_ADC | FEAT_16BIT_FANS
Guenter Roeck19529782012-12-19 22:17:02 +0100278 | FEAT_TEMP_OFFSET | FEAT_TEMP_OLD_PECI | FEAT_TEMP_PECI,
Guenter Roeck5d8d2f22012-12-19 22:17:02 +0100279 .peci_mask = 0x05,
Guenter Roeck19529782012-12-19 22:17:02 +0100280 .old_peci_mask = 0x02, /* Actually reports PCH */
Guenter Roeck483db432012-12-19 22:17:02 +0100281 },
282 [it8728] = {
283 .name = "it8728",
284 .features = FEAT_NEWER_AUTOPWM | FEAT_12MV_ADC | FEAT_16BIT_FANS
Guenter Roeck5d8d2f22012-12-19 22:17:02 +0100285 | FEAT_TEMP_OFFSET | FEAT_TEMP_PECI,
286 .peci_mask = 0x07,
Guenter Roeck483db432012-12-19 22:17:02 +0100287 },
Guenter Roeckb0636702012-09-07 17:34:41 -0600288 [it8771] = {
289 .name = "it8771",
290 .features = FEAT_NEWER_AUTOPWM | FEAT_12MV_ADC | FEAT_16BIT_FANS
291 | FEAT_TEMP_OFFSET | FEAT_TEMP_PECI,
292 /* PECI: guesswork */
293 /* 12mV ADC (OHM) */
294 /* 16 bit fans (OHM) */
295 .peci_mask = 0x07,
296 },
297 [it8772] = {
298 .name = "it8772",
299 .features = FEAT_NEWER_AUTOPWM | FEAT_12MV_ADC | FEAT_16BIT_FANS
300 | FEAT_TEMP_OFFSET | FEAT_TEMP_PECI,
301 /* PECI (coreboot) */
302 /* 12mV ADC (HWSensors4, OHM) */
303 /* 16 bit fans (HWSensors4, OHM) */
304 .peci_mask = 0x07,
305 },
Guenter Roeck483db432012-12-19 22:17:02 +0100306 [it8782] = {
307 .name = "it8782",
Guenter Roeck19529782012-12-19 22:17:02 +0100308 .features = FEAT_16BIT_FANS | FEAT_TEMP_OFFSET
309 | FEAT_TEMP_OLD_PECI,
310 .old_peci_mask = 0x4,
Guenter Roeck483db432012-12-19 22:17:02 +0100311 },
312 [it8783] = {
313 .name = "it8783",
Guenter Roeck19529782012-12-19 22:17:02 +0100314 .features = FEAT_16BIT_FANS | FEAT_TEMP_OFFSET
315 | FEAT_TEMP_OLD_PECI,
316 .old_peci_mask = 0x4,
Guenter Roeck483db432012-12-19 22:17:02 +0100317 },
318};
319
320#define has_16bit_fans(data) ((data)->features & FEAT_16BIT_FANS)
321#define has_12mv_adc(data) ((data)->features & FEAT_12MV_ADC)
322#define has_newer_autopwm(data) ((data)->features & FEAT_NEWER_AUTOPWM)
323#define has_old_autopwm(data) ((data)->features & FEAT_OLD_AUTOPWM)
324#define has_temp_offset(data) ((data)->features & FEAT_TEMP_OFFSET)
Guenter Roeck5d8d2f22012-12-19 22:17:02 +0100325#define has_temp_peci(data, nr) (((data)->features & FEAT_TEMP_PECI) && \
326 ((data)->peci_mask & (1 << nr)))
Guenter Roeck19529782012-12-19 22:17:02 +0100327#define has_temp_old_peci(data, nr) \
328 (((data)->features & FEAT_TEMP_OLD_PECI) && \
329 ((data)->old_peci_mask & (1 << nr)))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700330
corentin.labbeb74f3fd2007-06-13 20:27:36 +0200331struct it87_sio_data {
332 enum chips type;
333 /* Values read from Super-I/O config space */
Andrew Paprocki04751692008-08-06 22:41:06 +0200334 u8 revision;
corentin.labbeb74f3fd2007-06-13 20:27:36 +0200335 u8 vid_value;
Jean Delvared9b327c2010-03-05 22:17:17 +0100336 u8 beep_pin;
Jean Delvare738e5e02010-08-14 21:08:50 +0200337 u8 internal; /* Internal sensors can be labeled */
Jean Delvare591ec652009-12-09 20:35:48 +0100338 /* Features skipped based on config or DMI */
Guenter Roeck9172b5d2012-03-24 21:49:54 -0700339 u16 skip_in;
Jean Delvare895ff262009-12-09 20:35:47 +0100340 u8 skip_vid;
Jean Delvare591ec652009-12-09 20:35:48 +0100341 u8 skip_fan;
Jean Delvare98dd22c2008-10-09 15:33:58 +0200342 u8 skip_pwm;
Guenter Roeck4573acb2012-03-26 16:17:41 -0700343 u8 skip_temp;
corentin.labbeb74f3fd2007-06-13 20:27:36 +0200344};
345
Guenter Roeck4a0d71c2012-01-19 11:02:18 -0800346/*
347 * For each registered chip, we need to keep some data in memory.
348 * The structure is dynamically allocated.
349 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700350struct it87_data {
Tony Jones1beeffe2007-08-20 13:46:20 -0700351 struct device *hwmon_dev;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700352 enum chips type;
Guenter Roeck483db432012-12-19 22:17:02 +0100353 u16 features;
Guenter Roeck19529782012-12-19 22:17:02 +0100354 u8 peci_mask;
355 u8 old_peci_mask;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700356
corentin.labbeb74f3fd2007-06-13 20:27:36 +0200357 unsigned short addr;
358 const char *name;
Ingo Molnar9a61bf62006-01-18 23:19:26 +0100359 struct mutex update_lock;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700360 char valid; /* !=0 if following fields are valid */
361 unsigned long last_updated; /* In jiffies */
362
Jean Delvare44c1bcd2010-10-28 20:31:51 +0200363 u16 in_scaled; /* Internal voltage sensors are scaled */
Guenter Roeck929c6a52012-12-19 22:17:00 +0100364 u8 in[9][3]; /* [nr][0]=in, [1]=min, [2]=max */
Jean Delvare9060f8b2006-08-28 14:24:17 +0200365 u8 has_fan; /* Bitfield, fans enabled */
Guenter Roecke1169ba2012-12-19 22:17:01 +0100366 u16 fan[5][2]; /* Register values, [nr][0]=fan, [1]=min */
Guenter Roeck4573acb2012-03-26 16:17:41 -0700367 u8 has_temp; /* Bitfield, temp sensors enabled */
Guenter Roeck161d8982012-12-19 22:17:01 +0100368 s8 temp[3][4]; /* [nr][0]=temp, [1]=min, [2]=max, [3]=offset */
Guenter Roeck19529782012-12-19 22:17:02 +0100369 u8 sensor; /* Register value (IT87_REG_TEMP_ENABLE) */
370 u8 extra; /* Register value (IT87_REG_TEMP_EXTRA) */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700371 u8 fan_div[3]; /* Register encoding, shifted right */
372 u8 vid; /* Register encoding, combined */
Jean Delvarea7be58a2005-12-18 16:40:14 +0100373 u8 vrm;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700374 u32 alarms; /* Register encoding, combined */
Jean Delvared9b327c2010-03-05 22:17:17 +0100375 u8 beeps; /* Register encoding */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700376 u8 fan_main_ctrl; /* Register value */
Jean Delvaref8d0c192007-02-14 21:15:02 +0100377 u8 fan_ctl; /* Register value */
Jean Delvareb99883d2010-03-05 22:17:15 +0100378
Guenter Roeck4a0d71c2012-01-19 11:02:18 -0800379 /*
380 * The following 3 arrays correspond to the same registers up to
Jean Delvare6229cdb2010-12-08 16:27:22 +0100381 * the IT8720F. The meaning of bits 6-0 depends on the value of bit
382 * 7, and we want to preserve settings on mode changes, so we have
383 * to track all values separately.
384 * Starting with the IT8721F, the manual PWM duty cycles are stored
385 * in separate registers (8-bit values), so the separate tracking
386 * is no longer needed, but it is still done to keep the driver
Guenter Roeck4a0d71c2012-01-19 11:02:18 -0800387 * simple.
388 */
Jean Delvareb99883d2010-03-05 22:17:15 +0100389 u8 pwm_ctrl[3]; /* Register value */
Jean Delvare6229cdb2010-12-08 16:27:22 +0100390 u8 pwm_duty[3]; /* Manual PWM value set by user */
Jean Delvareb99883d2010-03-05 22:17:15 +0100391 u8 pwm_temp_map[3]; /* PWM to temp. chan. mapping (bits 1-0) */
Jean Delvare4f3f51b2010-03-05 22:17:21 +0100392
393 /* Automatic fan speed control registers */
394 u8 auto_pwm[3][4]; /* [nr][3] is hard-coded */
395 s8 auto_temp[3][5]; /* [nr][0] is point1_temp_hyst */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700396};
397
Guenter Roeck0531d982012-03-02 11:46:44 -0800398static int adc_lsb(const struct it87_data *data, int nr)
399{
400 int lsb = has_12mv_adc(data) ? 12 : 16;
401 if (data->in_scaled & (1 << nr))
402 lsb <<= 1;
403 return lsb;
404}
405
Jean Delvare44c1bcd2010-10-28 20:31:51 +0200406static u8 in_to_reg(const struct it87_data *data, int nr, long val)
407{
Guenter Roeck0531d982012-03-02 11:46:44 -0800408 val = DIV_ROUND_CLOSEST(val, adc_lsb(data, nr));
Guenter Roeck2a844c12013-01-09 08:09:34 -0800409 return clamp_val(val, 0, 255);
Jean Delvare44c1bcd2010-10-28 20:31:51 +0200410}
411
412static int in_from_reg(const struct it87_data *data, int nr, int val)
413{
Guenter Roeck0531d982012-03-02 11:46:44 -0800414 return val * adc_lsb(data, nr);
Jean Delvare44c1bcd2010-10-28 20:31:51 +0200415}
Jean Delvare0df6454d2010-10-28 20:31:51 +0200416
417static inline u8 FAN_TO_REG(long rpm, int div)
418{
419 if (rpm == 0)
420 return 255;
Guenter Roeck2a844c12013-01-09 08:09:34 -0800421 rpm = clamp_val(rpm, 1, 1000000);
422 return clamp_val((1350000 + rpm * div / 2) / (rpm * div), 1, 254);
Jean Delvare0df6454d2010-10-28 20:31:51 +0200423}
424
425static inline u16 FAN16_TO_REG(long rpm)
426{
427 if (rpm == 0)
428 return 0xffff;
Guenter Roeck2a844c12013-01-09 08:09:34 -0800429 return clamp_val((1350000 + rpm) / (rpm * 2), 1, 0xfffe);
Jean Delvare0df6454d2010-10-28 20:31:51 +0200430}
431
432#define FAN_FROM_REG(val, div) ((val) == 0 ? -1 : (val) == 255 ? 0 : \
433 1350000 / ((val) * (div)))
434/* The divider is fixed to 2 in 16-bit mode */
435#define FAN16_FROM_REG(val) ((val) == 0 ? -1 : (val) == 0xffff ? 0 : \
436 1350000 / ((val) * 2))
437
Guenter Roeck2a844c12013-01-09 08:09:34 -0800438#define TEMP_TO_REG(val) (clamp_val(((val) < 0 ? (((val) - 500) / 1000) : \
439 ((val) + 500) / 1000), -128, 127))
Jean Delvare0df6454d2010-10-28 20:31:51 +0200440#define TEMP_FROM_REG(val) ((val) * 1000)
441
Jean Delvare44c1bcd2010-10-28 20:31:51 +0200442static u8 pwm_to_reg(const struct it87_data *data, long val)
443{
Jean Delvare16b5dda2012-01-16 22:51:48 +0100444 if (has_newer_autopwm(data))
Jean Delvare44c1bcd2010-10-28 20:31:51 +0200445 return val;
446 else
447 return val >> 1;
448}
449
450static int pwm_from_reg(const struct it87_data *data, u8 reg)
451{
Jean Delvare16b5dda2012-01-16 22:51:48 +0100452 if (has_newer_autopwm(data))
Jean Delvare44c1bcd2010-10-28 20:31:51 +0200453 return reg;
454 else
455 return (reg & 0x7f) << 1;
456}
457
Jean Delvare0df6454d2010-10-28 20:31:51 +0200458
459static int DIV_TO_REG(int val)
460{
461 int answer = 0;
462 while (answer < 7 && (val >>= 1))
463 answer++;
464 return answer;
465}
466#define DIV_FROM_REG(val) (1 << (val))
467
468static const unsigned int pwm_freq[8] = {
469 48000000 / 128,
470 24000000 / 128,
471 12000000 / 128,
472 8000000 / 128,
473 6000000 / 128,
474 3000000 / 128,
475 1500000 / 128,
476 750000 / 128,
477};
478
corentin.labbeb74f3fd2007-06-13 20:27:36 +0200479static int it87_probe(struct platform_device *pdev);
Bill Pemberton281dfd02012-11-19 13:25:51 -0500480static int it87_remove(struct platform_device *pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700481
corentin.labbeb74f3fd2007-06-13 20:27:36 +0200482static int it87_read_value(struct it87_data *data, u8 reg);
483static void it87_write_value(struct it87_data *data, u8 reg, u8 value);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700484static struct it87_data *it87_update_device(struct device *dev);
corentin.labbeb74f3fd2007-06-13 20:27:36 +0200485static int it87_check_pwm(struct device *dev);
486static void it87_init_device(struct platform_device *pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700487
488
corentin.labbeb74f3fd2007-06-13 20:27:36 +0200489static struct platform_driver it87_driver = {
Laurent Riffardcdaf7932005-11-26 20:37:41 +0100490 .driver = {
Jean Delvare87218842006-09-03 22:36:14 +0200491 .owner = THIS_MODULE,
corentin.labbeb74f3fd2007-06-13 20:27:36 +0200492 .name = DRVNAME,
Laurent Riffardcdaf7932005-11-26 20:37:41 +0100493 },
corentin.labbeb74f3fd2007-06-13 20:27:36 +0200494 .probe = it87_probe,
Bill Pemberton9e5e9b72012-11-19 13:21:20 -0500495 .remove = it87_remove,
Jean Delvarefde09502005-07-19 23:51:07 +0200496};
497
Jean Delvare20ad93d2005-06-05 11:53:25 +0200498static ssize_t show_in(struct device *dev, struct device_attribute *attr,
Guenter Roeck929c6a52012-12-19 22:17:00 +0100499 char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700500{
Guenter Roeck929c6a52012-12-19 22:17:00 +0100501 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
502 int nr = sattr->nr;
503 int index = sattr->index;
Jean Delvare20ad93d2005-06-05 11:53:25 +0200504
Linus Torvalds1da177e2005-04-16 15:20:36 -0700505 struct it87_data *data = it87_update_device(dev);
Guenter Roeck929c6a52012-12-19 22:17:00 +0100506 return sprintf(buf, "%d\n", in_from_reg(data, nr, data->in[nr][index]));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700507}
508
Guenter Roeck929c6a52012-12-19 22:17:00 +0100509static ssize_t set_in(struct device *dev, struct device_attribute *attr,
510 const char *buf, size_t count)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700511{
Guenter Roeck929c6a52012-12-19 22:17:00 +0100512 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
513 int nr = sattr->nr;
514 int index = sattr->index;
Jean Delvare20ad93d2005-06-05 11:53:25 +0200515
corentin.labbeb74f3fd2007-06-13 20:27:36 +0200516 struct it87_data *data = dev_get_drvdata(dev);
Jean Delvaref5f64502010-03-05 22:17:19 +0100517 unsigned long val;
518
Frans Meulenbroeks179c4fd2012-01-04 20:58:52 +0100519 if (kstrtoul(buf, 10, &val) < 0)
Jean Delvaref5f64502010-03-05 22:17:19 +0100520 return -EINVAL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700521
Ingo Molnar9a61bf62006-01-18 23:19:26 +0100522 mutex_lock(&data->update_lock);
Guenter Roeck929c6a52012-12-19 22:17:00 +0100523 data->in[nr][index] = in_to_reg(data, nr, val);
524 it87_write_value(data,
525 index == 1 ? IT87_REG_VIN_MIN(nr)
526 : IT87_REG_VIN_MAX(nr),
527 data->in[nr][index]);
Ingo Molnar9a61bf62006-01-18 23:19:26 +0100528 mutex_unlock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700529 return count;
530}
531
Guenter Roeck929c6a52012-12-19 22:17:00 +0100532static SENSOR_DEVICE_ATTR_2(in0_input, S_IRUGO, show_in, NULL, 0, 0);
533static SENSOR_DEVICE_ATTR_2(in0_min, S_IRUGO | S_IWUSR, show_in, set_in,
534 0, 1);
535static SENSOR_DEVICE_ATTR_2(in0_max, S_IRUGO | S_IWUSR, show_in, set_in,
536 0, 2);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700537
Guenter Roeck929c6a52012-12-19 22:17:00 +0100538static SENSOR_DEVICE_ATTR_2(in1_input, S_IRUGO, show_in, NULL, 1, 0);
539static SENSOR_DEVICE_ATTR_2(in1_min, S_IRUGO | S_IWUSR, show_in, set_in,
540 1, 1);
541static SENSOR_DEVICE_ATTR_2(in1_max, S_IRUGO | S_IWUSR, show_in, set_in,
542 1, 2);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700543
Guenter Roeck929c6a52012-12-19 22:17:00 +0100544static SENSOR_DEVICE_ATTR_2(in2_input, S_IRUGO, show_in, NULL, 2, 0);
545static SENSOR_DEVICE_ATTR_2(in2_min, S_IRUGO | S_IWUSR, show_in, set_in,
546 2, 1);
547static SENSOR_DEVICE_ATTR_2(in2_max, S_IRUGO | S_IWUSR, show_in, set_in,
548 2, 2);
549
550static SENSOR_DEVICE_ATTR_2(in3_input, S_IRUGO, show_in, NULL, 3, 0);
551static SENSOR_DEVICE_ATTR_2(in3_min, S_IRUGO | S_IWUSR, show_in, set_in,
552 3, 1);
553static SENSOR_DEVICE_ATTR_2(in3_max, S_IRUGO | S_IWUSR, show_in, set_in,
554 3, 2);
555
556static SENSOR_DEVICE_ATTR_2(in4_input, S_IRUGO, show_in, NULL, 4, 0);
557static SENSOR_DEVICE_ATTR_2(in4_min, S_IRUGO | S_IWUSR, show_in, set_in,
558 4, 1);
559static SENSOR_DEVICE_ATTR_2(in4_max, S_IRUGO | S_IWUSR, show_in, set_in,
560 4, 2);
561
562static SENSOR_DEVICE_ATTR_2(in5_input, S_IRUGO, show_in, NULL, 5, 0);
563static SENSOR_DEVICE_ATTR_2(in5_min, S_IRUGO | S_IWUSR, show_in, set_in,
564 5, 1);
565static SENSOR_DEVICE_ATTR_2(in5_max, S_IRUGO | S_IWUSR, show_in, set_in,
566 5, 2);
567
568static SENSOR_DEVICE_ATTR_2(in6_input, S_IRUGO, show_in, NULL, 6, 0);
569static SENSOR_DEVICE_ATTR_2(in6_min, S_IRUGO | S_IWUSR, show_in, set_in,
570 6, 1);
571static SENSOR_DEVICE_ATTR_2(in6_max, S_IRUGO | S_IWUSR, show_in, set_in,
572 6, 2);
573
574static SENSOR_DEVICE_ATTR_2(in7_input, S_IRUGO, show_in, NULL, 7, 0);
575static SENSOR_DEVICE_ATTR_2(in7_min, S_IRUGO | S_IWUSR, show_in, set_in,
576 7, 1);
577static SENSOR_DEVICE_ATTR_2(in7_max, S_IRUGO | S_IWUSR, show_in, set_in,
578 7, 2);
579
580static SENSOR_DEVICE_ATTR_2(in8_input, S_IRUGO, show_in, NULL, 8, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700581
582/* 3 temperatures */
Jean Delvare20ad93d2005-06-05 11:53:25 +0200583static ssize_t show_temp(struct device *dev, struct device_attribute *attr,
Guenter Roeck60ca3852012-12-19 22:17:00 +0100584 char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700585{
Guenter Roeck60ca3852012-12-19 22:17:00 +0100586 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
587 int nr = sattr->nr;
588 int index = sattr->index;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700589 struct it87_data *data = it87_update_device(dev);
Jean Delvare20ad93d2005-06-05 11:53:25 +0200590
Guenter Roeck60ca3852012-12-19 22:17:00 +0100591 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[nr][index]));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700592}
Jean Delvare20ad93d2005-06-05 11:53:25 +0200593
Guenter Roeck60ca3852012-12-19 22:17:00 +0100594static ssize_t set_temp(struct device *dev, struct device_attribute *attr,
595 const char *buf, size_t count)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700596{
Guenter Roeck60ca3852012-12-19 22:17:00 +0100597 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
598 int nr = sattr->nr;
599 int index = sattr->index;
corentin.labbeb74f3fd2007-06-13 20:27:36 +0200600 struct it87_data *data = dev_get_drvdata(dev);
Jean Delvaref5f64502010-03-05 22:17:19 +0100601 long val;
Guenter Roeck161d8982012-12-19 22:17:01 +0100602 u8 reg, regval;
Jean Delvaref5f64502010-03-05 22:17:19 +0100603
Frans Meulenbroeks179c4fd2012-01-04 20:58:52 +0100604 if (kstrtol(buf, 10, &val) < 0)
Jean Delvaref5f64502010-03-05 22:17:19 +0100605 return -EINVAL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700606
Ingo Molnar9a61bf62006-01-18 23:19:26 +0100607 mutex_lock(&data->update_lock);
Guenter Roeck161d8982012-12-19 22:17:01 +0100608
609 switch (index) {
610 default:
611 case 1:
612 reg = IT87_REG_TEMP_LOW(nr);
613 break;
614 case 2:
615 reg = IT87_REG_TEMP_HIGH(nr);
616 break;
617 case 3:
618 regval = it87_read_value(data, IT87_REG_BEEP_ENABLE);
619 if (!(regval & 0x80)) {
620 regval |= 0x80;
621 it87_write_value(data, IT87_REG_BEEP_ENABLE, regval);
622 }
623 data->valid = 0;
624 reg = IT87_REG_TEMP_OFFSET[nr];
625 break;
626 }
627
Guenter Roeck60ca3852012-12-19 22:17:00 +0100628 data->temp[nr][index] = TEMP_TO_REG(val);
Guenter Roeck161d8982012-12-19 22:17:01 +0100629 it87_write_value(data, reg, data->temp[nr][index]);
Ingo Molnar9a61bf62006-01-18 23:19:26 +0100630 mutex_unlock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700631 return count;
632}
Jean Delvare20ad93d2005-06-05 11:53:25 +0200633
Guenter Roeck60ca3852012-12-19 22:17:00 +0100634static SENSOR_DEVICE_ATTR_2(temp1_input, S_IRUGO, show_temp, NULL, 0, 0);
635static SENSOR_DEVICE_ATTR_2(temp1_min, S_IRUGO | S_IWUSR, show_temp, set_temp,
636 0, 1);
637static SENSOR_DEVICE_ATTR_2(temp1_max, S_IRUGO | S_IWUSR, show_temp, set_temp,
638 0, 2);
Guenter Roeck161d8982012-12-19 22:17:01 +0100639static SENSOR_DEVICE_ATTR_2(temp1_offset, S_IRUGO | S_IWUSR, show_temp,
640 set_temp, 0, 3);
Guenter Roeck60ca3852012-12-19 22:17:00 +0100641static SENSOR_DEVICE_ATTR_2(temp2_input, S_IRUGO, show_temp, NULL, 1, 0);
642static SENSOR_DEVICE_ATTR_2(temp2_min, S_IRUGO | S_IWUSR, show_temp, set_temp,
643 1, 1);
644static SENSOR_DEVICE_ATTR_2(temp2_max, S_IRUGO | S_IWUSR, show_temp, set_temp,
645 1, 2);
Guenter Roeck161d8982012-12-19 22:17:01 +0100646static SENSOR_DEVICE_ATTR_2(temp2_offset, S_IRUGO | S_IWUSR, show_temp,
647 set_temp, 1, 3);
Guenter Roeck60ca3852012-12-19 22:17:00 +0100648static SENSOR_DEVICE_ATTR_2(temp3_input, S_IRUGO, show_temp, NULL, 2, 0);
649static SENSOR_DEVICE_ATTR_2(temp3_min, S_IRUGO | S_IWUSR, show_temp, set_temp,
650 2, 1);
651static SENSOR_DEVICE_ATTR_2(temp3_max, S_IRUGO | S_IWUSR, show_temp, set_temp,
652 2, 2);
Guenter Roeck161d8982012-12-19 22:17:01 +0100653static SENSOR_DEVICE_ATTR_2(temp3_offset, S_IRUGO | S_IWUSR, show_temp,
654 set_temp, 2, 3);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700655
Guenter Roeck2cece012012-12-19 22:17:01 +0100656static ssize_t show_temp_type(struct device *dev, struct device_attribute *attr,
657 char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700658{
Jean Delvare20ad93d2005-06-05 11:53:25 +0200659 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
660 int nr = sensor_attr->index;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700661 struct it87_data *data = it87_update_device(dev);
Guenter Roeck4a0d71c2012-01-19 11:02:18 -0800662 u8 reg = data->sensor; /* In case value is updated while used */
Guenter Roeck19529782012-12-19 22:17:02 +0100663 u8 extra = data->extra;
Jean Delvare5f2dc792010-03-05 22:17:18 +0100664
Guenter Roeck19529782012-12-19 22:17:02 +0100665 if ((has_temp_peci(data, nr) && (reg >> 6 == nr + 1))
666 || (has_temp_old_peci(data, nr) && (extra & 0x80)))
Guenter Roeck5d8d2f22012-12-19 22:17:02 +0100667 return sprintf(buf, "6\n"); /* Intel PECI */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700668 if (reg & (1 << nr))
669 return sprintf(buf, "3\n"); /* thermal diode */
670 if (reg & (8 << nr))
Jean Delvare4ed10772008-10-17 17:51:16 +0200671 return sprintf(buf, "4\n"); /* thermistor */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700672 return sprintf(buf, "0\n"); /* disabled */
673}
Guenter Roeck2cece012012-12-19 22:17:01 +0100674
675static ssize_t set_temp_type(struct device *dev, struct device_attribute *attr,
676 const char *buf, size_t count)
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
corentin.labbeb74f3fd2007-06-13 20:27:36 +0200681 struct it87_data *data = dev_get_drvdata(dev);
Jean Delvaref5f64502010-03-05 22:17:19 +0100682 long val;
Guenter Roeck19529782012-12-19 22:17:02 +0100683 u8 reg, extra;
Jean Delvaref5f64502010-03-05 22:17:19 +0100684
Frans Meulenbroeks179c4fd2012-01-04 20:58:52 +0100685 if (kstrtol(buf, 10, &val) < 0)
Jean Delvaref5f64502010-03-05 22:17:19 +0100686 return -EINVAL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700687
Jean Delvare8acf07c2010-04-14 16:14:09 +0200688 reg = it87_read_value(data, IT87_REG_TEMP_ENABLE);
689 reg &= ~(1 << nr);
690 reg &= ~(8 << nr);
Guenter Roeck5d8d2f22012-12-19 22:17:02 +0100691 if (has_temp_peci(data, nr) && (reg >> 6 == nr + 1 || val == 6))
692 reg &= 0x3f;
Guenter Roeck19529782012-12-19 22:17:02 +0100693 extra = it87_read_value(data, IT87_REG_TEMP_EXTRA);
694 if (has_temp_old_peci(data, nr) && ((extra & 0x80) || val == 6))
695 extra &= 0x7f;
Jean Delvare4ed10772008-10-17 17:51:16 +0200696 if (val == 2) { /* backwards compatibility */
Guenter Roeck1d9bcf62012-12-19 22:17:01 +0100697 dev_warn(dev,
698 "Sensor type 2 is deprecated, please use 4 instead\n");
Jean Delvare4ed10772008-10-17 17:51:16 +0200699 val = 4;
700 }
Guenter Roeck5d8d2f22012-12-19 22:17:02 +0100701 /* 3 = thermal diode; 4 = thermistor; 6 = Intel PECI; 0 = disabled */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700702 if (val == 3)
Jean Delvare8acf07c2010-04-14 16:14:09 +0200703 reg |= 1 << nr;
Jean Delvare4ed10772008-10-17 17:51:16 +0200704 else if (val == 4)
Jean Delvare8acf07c2010-04-14 16:14:09 +0200705 reg |= 8 << nr;
Guenter Roeck5d8d2f22012-12-19 22:17:02 +0100706 else if (has_temp_peci(data, nr) && val == 6)
707 reg |= (nr + 1) << 6;
Guenter Roeck19529782012-12-19 22:17:02 +0100708 else if (has_temp_old_peci(data, nr) && val == 6)
709 extra |= 0x80;
Jean Delvare8acf07c2010-04-14 16:14:09 +0200710 else if (val != 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700711 return -EINVAL;
Jean Delvare8acf07c2010-04-14 16:14:09 +0200712
713 mutex_lock(&data->update_lock);
714 data->sensor = reg;
Guenter Roeck19529782012-12-19 22:17:02 +0100715 data->extra = extra;
corentin.labbeb74f3fd2007-06-13 20:27:36 +0200716 it87_write_value(data, IT87_REG_TEMP_ENABLE, data->sensor);
Guenter Roeck19529782012-12-19 22:17:02 +0100717 if (has_temp_old_peci(data, nr))
718 it87_write_value(data, IT87_REG_TEMP_EXTRA, data->extra);
Jean Delvare2b3d1d82010-04-14 16:14:10 +0200719 data->valid = 0; /* Force cache refresh */
Ingo Molnar9a61bf62006-01-18 23:19:26 +0100720 mutex_unlock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700721 return count;
722}
Linus Torvalds1da177e2005-04-16 15:20:36 -0700723
Guenter Roeck2cece012012-12-19 22:17:01 +0100724static SENSOR_DEVICE_ATTR(temp1_type, S_IRUGO | S_IWUSR, show_temp_type,
725 set_temp_type, 0);
726static SENSOR_DEVICE_ATTR(temp2_type, S_IRUGO | S_IWUSR, show_temp_type,
727 set_temp_type, 1);
728static SENSOR_DEVICE_ATTR(temp3_type, S_IRUGO | S_IWUSR, show_temp_type,
729 set_temp_type, 2);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700730
731/* 3 Fans */
Jean Delvareb99883d2010-03-05 22:17:15 +0100732
733static int pwm_mode(const struct it87_data *data, int nr)
734{
735 int ctrl = data->fan_main_ctrl & (1 << nr);
736
737 if (ctrl == 0) /* Full speed */
738 return 0;
739 if (data->pwm_ctrl[nr] & 0x80) /* Automatic mode */
740 return 2;
741 else /* Manual mode */
742 return 1;
743}
744
Jean Delvare20ad93d2005-06-05 11:53:25 +0200745static ssize_t show_fan(struct device *dev, struct device_attribute *attr,
Guenter Roecke1169ba2012-12-19 22:17:01 +0100746 char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700747{
Guenter Roecke1169ba2012-12-19 22:17:01 +0100748 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
749 int nr = sattr->nr;
750 int index = sattr->index;
751 int speed;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700752 struct it87_data *data = it87_update_device(dev);
Jean Delvare20ad93d2005-06-05 11:53:25 +0200753
Guenter Roecke1169ba2012-12-19 22:17:01 +0100754 speed = has_16bit_fans(data) ?
755 FAN16_FROM_REG(data->fan[nr][index]) :
756 FAN_FROM_REG(data->fan[nr][index],
757 DIV_FROM_REG(data->fan_div[nr]));
758 return sprintf(buf, "%d\n", speed);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700759}
Guenter Roecke1169ba2012-12-19 22:17:01 +0100760
Jean Delvare20ad93d2005-06-05 11:53:25 +0200761static ssize_t show_fan_div(struct device *dev, struct device_attribute *attr,
762 char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700763{
Jean Delvare20ad93d2005-06-05 11:53:25 +0200764 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
765 int nr = sensor_attr->index;
766
Linus Torvalds1da177e2005-04-16 15:20:36 -0700767 struct it87_data *data = it87_update_device(dev);
768 return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[nr]));
769}
Jean Delvare5f2dc792010-03-05 22:17:18 +0100770static ssize_t show_pwm_enable(struct device *dev,
771 struct device_attribute *attr, char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700772{
Jean Delvare20ad93d2005-06-05 11:53:25 +0200773 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
774 int nr = sensor_attr->index;
775
Linus Torvalds1da177e2005-04-16 15:20:36 -0700776 struct it87_data *data = it87_update_device(dev);
Jean Delvareb99883d2010-03-05 22:17:15 +0100777 return sprintf(buf, "%d\n", pwm_mode(data, nr));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700778}
Jean Delvare20ad93d2005-06-05 11:53:25 +0200779static ssize_t show_pwm(struct device *dev, struct device_attribute *attr,
780 char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700781{
Jean Delvare20ad93d2005-06-05 11:53:25 +0200782 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
783 int nr = sensor_attr->index;
784
Linus Torvalds1da177e2005-04-16 15:20:36 -0700785 struct it87_data *data = it87_update_device(dev);
Jean Delvare44c1bcd2010-10-28 20:31:51 +0200786 return sprintf(buf, "%d\n",
787 pwm_from_reg(data, data->pwm_duty[nr]));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700788}
Jean Delvaref8d0c192007-02-14 21:15:02 +0100789static ssize_t show_pwm_freq(struct device *dev, struct device_attribute *attr,
790 char *buf)
791{
792 struct it87_data *data = it87_update_device(dev);
793 int index = (data->fan_ctl >> 4) & 0x07;
794
795 return sprintf(buf, "%u\n", pwm_freq[index]);
796}
Guenter Roecke1169ba2012-12-19 22:17:01 +0100797
798static ssize_t set_fan(struct device *dev, struct device_attribute *attr,
799 const char *buf, size_t count)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700800{
Guenter Roecke1169ba2012-12-19 22:17:01 +0100801 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
802 int nr = sattr->nr;
803 int index = sattr->index;
Jean Delvare20ad93d2005-06-05 11:53:25 +0200804
corentin.labbeb74f3fd2007-06-13 20:27:36 +0200805 struct it87_data *data = dev_get_drvdata(dev);
Jean Delvaref5f64502010-03-05 22:17:19 +0100806 long val;
Jean Delvare7f999aa2007-02-14 21:15:03 +0100807 u8 reg;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700808
Frans Meulenbroeks179c4fd2012-01-04 20:58:52 +0100809 if (kstrtol(buf, 10, &val) < 0)
Jean Delvaref5f64502010-03-05 22:17:19 +0100810 return -EINVAL;
811
Ingo Molnar9a61bf62006-01-18 23:19:26 +0100812 mutex_lock(&data->update_lock);
Guenter Roecke1169ba2012-12-19 22:17:01 +0100813
814 if (has_16bit_fans(data)) {
815 data->fan[nr][index] = FAN16_TO_REG(val);
816 it87_write_value(data, IT87_REG_FAN_MIN[nr],
817 data->fan[nr][index] & 0xff);
818 it87_write_value(data, IT87_REG_FANX_MIN[nr],
819 data->fan[nr][index] >> 8);
820 } else {
821 reg = it87_read_value(data, IT87_REG_FAN_DIV);
822 switch (nr) {
823 case 0:
824 data->fan_div[nr] = reg & 0x07;
825 break;
826 case 1:
827 data->fan_div[nr] = (reg >> 3) & 0x07;
828 break;
829 case 2:
830 data->fan_div[nr] = (reg & 0x40) ? 3 : 1;
831 break;
832 }
833 data->fan[nr][index] =
834 FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr]));
835 it87_write_value(data, IT87_REG_FAN_MIN[nr],
836 data->fan[nr][index]);
Jean Delvare07eab462005-11-23 15:44:31 -0800837 }
838
Ingo Molnar9a61bf62006-01-18 23:19:26 +0100839 mutex_unlock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700840 return count;
841}
Guenter Roecke1169ba2012-12-19 22:17:01 +0100842
Jean Delvare20ad93d2005-06-05 11:53:25 +0200843static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr,
844 const char *buf, size_t count)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700845{
Jean Delvare20ad93d2005-06-05 11:53:25 +0200846 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
847 int nr = sensor_attr->index;
848
corentin.labbeb74f3fd2007-06-13 20:27:36 +0200849 struct it87_data *data = dev_get_drvdata(dev);
Jean Delvaref5f64502010-03-05 22:17:19 +0100850 unsigned long val;
Jean Delvare8ab4ec32006-08-28 14:35:46 +0200851 int min;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700852 u8 old;
853
Frans Meulenbroeks179c4fd2012-01-04 20:58:52 +0100854 if (kstrtoul(buf, 10, &val) < 0)
Jean Delvaref5f64502010-03-05 22:17:19 +0100855 return -EINVAL;
856
Ingo Molnar9a61bf62006-01-18 23:19:26 +0100857 mutex_lock(&data->update_lock);
corentin.labbeb74f3fd2007-06-13 20:27:36 +0200858 old = it87_read_value(data, IT87_REG_FAN_DIV);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700859
Jean Delvare8ab4ec32006-08-28 14:35:46 +0200860 /* Save fan min limit */
Guenter Roecke1169ba2012-12-19 22:17:01 +0100861 min = FAN_FROM_REG(data->fan[nr][1], DIV_FROM_REG(data->fan_div[nr]));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700862
863 switch (nr) {
864 case 0:
865 case 1:
866 data->fan_div[nr] = DIV_TO_REG(val);
867 break;
868 case 2:
869 if (val < 8)
870 data->fan_div[nr] = 1;
871 else
872 data->fan_div[nr] = 3;
873 }
874 val = old & 0x80;
875 val |= (data->fan_div[0] & 0x07);
876 val |= (data->fan_div[1] & 0x07) << 3;
877 if (data->fan_div[2] == 3)
878 val |= 0x1 << 6;
corentin.labbeb74f3fd2007-06-13 20:27:36 +0200879 it87_write_value(data, IT87_REG_FAN_DIV, val);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700880
Jean Delvare8ab4ec32006-08-28 14:35:46 +0200881 /* Restore fan min limit */
Guenter Roecke1169ba2012-12-19 22:17:01 +0100882 data->fan[nr][1] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr]));
883 it87_write_value(data, IT87_REG_FAN_MIN[nr], data->fan[nr][1]);
Jean Delvare8ab4ec32006-08-28 14:35:46 +0200884
Ingo Molnar9a61bf62006-01-18 23:19:26 +0100885 mutex_unlock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700886 return count;
887}
Jean Delvarecccfc9c2010-03-05 22:17:21 +0100888
889/* Returns 0 if OK, -EINVAL otherwise */
890static int check_trip_points(struct device *dev, int nr)
891{
892 const struct it87_data *data = dev_get_drvdata(dev);
893 int i, err = 0;
894
895 if (has_old_autopwm(data)) {
896 for (i = 0; i < 3; i++) {
897 if (data->auto_temp[nr][i] > data->auto_temp[nr][i + 1])
898 err = -EINVAL;
899 }
900 for (i = 0; i < 2; i++) {
901 if (data->auto_pwm[nr][i] > data->auto_pwm[nr][i + 1])
902 err = -EINVAL;
903 }
904 }
905
906 if (err) {
Guenter Roeck1d9bcf62012-12-19 22:17:01 +0100907 dev_err(dev,
908 "Inconsistent trip points, not switching to automatic mode\n");
Jean Delvarecccfc9c2010-03-05 22:17:21 +0100909 dev_err(dev, "Adjust the trip points and try again\n");
910 }
911 return err;
912}
913
Jean Delvare20ad93d2005-06-05 11:53:25 +0200914static ssize_t set_pwm_enable(struct device *dev,
915 struct device_attribute *attr, const char *buf, size_t count)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700916{
Jean Delvare20ad93d2005-06-05 11:53:25 +0200917 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
918 int nr = sensor_attr->index;
919
corentin.labbeb74f3fd2007-06-13 20:27:36 +0200920 struct it87_data *data = dev_get_drvdata(dev);
Jean Delvaref5f64502010-03-05 22:17:19 +0100921 long val;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700922
Frans Meulenbroeks179c4fd2012-01-04 20:58:52 +0100923 if (kstrtol(buf, 10, &val) < 0 || val < 0 || val > 2)
Jean Delvareb99883d2010-03-05 22:17:15 +0100924 return -EINVAL;
925
Jean Delvarecccfc9c2010-03-05 22:17:21 +0100926 /* Check trip points before switching to automatic mode */
927 if (val == 2) {
928 if (check_trip_points(dev, nr) < 0)
929 return -EINVAL;
930 }
931
Ingo Molnar9a61bf62006-01-18 23:19:26 +0100932 mutex_lock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700933
934 if (val == 0) {
935 int tmp;
936 /* make sure the fan is on when in on/off mode */
corentin.labbeb74f3fd2007-06-13 20:27:36 +0200937 tmp = it87_read_value(data, IT87_REG_FAN_CTL);
938 it87_write_value(data, IT87_REG_FAN_CTL, tmp | (1 << nr));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700939 /* set on/off mode */
940 data->fan_main_ctrl &= ~(1 << nr);
Jean Delvare5f2dc792010-03-05 22:17:18 +0100941 it87_write_value(data, IT87_REG_FAN_MAIN_CTRL,
942 data->fan_main_ctrl);
Jean Delvareb99883d2010-03-05 22:17:15 +0100943 } else {
944 if (val == 1) /* Manual mode */
Jean Delvare16b5dda2012-01-16 22:51:48 +0100945 data->pwm_ctrl[nr] = has_newer_autopwm(data) ?
Jean Delvare6229cdb2010-12-08 16:27:22 +0100946 data->pwm_temp_map[nr] :
947 data->pwm_duty[nr];
Jean Delvareb99883d2010-03-05 22:17:15 +0100948 else /* Automatic mode */
949 data->pwm_ctrl[nr] = 0x80 | data->pwm_temp_map[nr];
950 it87_write_value(data, IT87_REG_PWM(nr), data->pwm_ctrl[nr]);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700951 /* set SmartGuardian mode */
952 data->fan_main_ctrl |= (1 << nr);
Jean Delvare5f2dc792010-03-05 22:17:18 +0100953 it87_write_value(data, IT87_REG_FAN_MAIN_CTRL,
954 data->fan_main_ctrl);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700955 }
956
Ingo Molnar9a61bf62006-01-18 23:19:26 +0100957 mutex_unlock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700958 return count;
959}
Jean Delvare20ad93d2005-06-05 11:53:25 +0200960static ssize_t set_pwm(struct device *dev, struct device_attribute *attr,
961 const char *buf, size_t count)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700962{
Jean Delvare20ad93d2005-06-05 11:53:25 +0200963 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
964 int nr = sensor_attr->index;
965
corentin.labbeb74f3fd2007-06-13 20:27:36 +0200966 struct it87_data *data = dev_get_drvdata(dev);
Jean Delvaref5f64502010-03-05 22:17:19 +0100967 long val;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700968
Frans Meulenbroeks179c4fd2012-01-04 20:58:52 +0100969 if (kstrtol(buf, 10, &val) < 0 || val < 0 || val > 255)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700970 return -EINVAL;
971
Ingo Molnar9a61bf62006-01-18 23:19:26 +0100972 mutex_lock(&data->update_lock);
Jean Delvare16b5dda2012-01-16 22:51:48 +0100973 if (has_newer_autopwm(data)) {
Guenter Roeck4a0d71c2012-01-19 11:02:18 -0800974 /*
975 * If we are in automatic mode, the PWM duty cycle register
976 * is read-only so we can't write the value.
977 */
Jean Delvare6229cdb2010-12-08 16:27:22 +0100978 if (data->pwm_ctrl[nr] & 0x80) {
979 mutex_unlock(&data->update_lock);
980 return -EBUSY;
981 }
982 data->pwm_duty[nr] = pwm_to_reg(data, val);
983 it87_write_value(data, IT87_REG_PWM_DUTY(nr),
984 data->pwm_duty[nr]);
985 } else {
986 data->pwm_duty[nr] = pwm_to_reg(data, val);
Guenter Roeck4a0d71c2012-01-19 11:02:18 -0800987 /*
988 * If we are in manual mode, write the duty cycle immediately;
989 * otherwise, just store it for later use.
990 */
Jean Delvare6229cdb2010-12-08 16:27:22 +0100991 if (!(data->pwm_ctrl[nr] & 0x80)) {
992 data->pwm_ctrl[nr] = data->pwm_duty[nr];
993 it87_write_value(data, IT87_REG_PWM(nr),
994 data->pwm_ctrl[nr]);
995 }
Jean Delvareb99883d2010-03-05 22:17:15 +0100996 }
Ingo Molnar9a61bf62006-01-18 23:19:26 +0100997 mutex_unlock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700998 return count;
999}
Jean Delvaref8d0c192007-02-14 21:15:02 +01001000static ssize_t set_pwm_freq(struct device *dev,
1001 struct device_attribute *attr, const char *buf, size_t count)
1002{
corentin.labbeb74f3fd2007-06-13 20:27:36 +02001003 struct it87_data *data = dev_get_drvdata(dev);
Jean Delvaref5f64502010-03-05 22:17:19 +01001004 unsigned long val;
Jean Delvaref8d0c192007-02-14 21:15:02 +01001005 int i;
1006
Frans Meulenbroeks179c4fd2012-01-04 20:58:52 +01001007 if (kstrtoul(buf, 10, &val) < 0)
Jean Delvaref5f64502010-03-05 22:17:19 +01001008 return -EINVAL;
1009
Jean Delvaref8d0c192007-02-14 21:15:02 +01001010 /* Search for the nearest available frequency */
1011 for (i = 0; i < 7; i++) {
1012 if (val > (pwm_freq[i] + pwm_freq[i+1]) / 2)
1013 break;
1014 }
1015
1016 mutex_lock(&data->update_lock);
corentin.labbeb74f3fd2007-06-13 20:27:36 +02001017 data->fan_ctl = it87_read_value(data, IT87_REG_FAN_CTL) & 0x8f;
Jean Delvaref8d0c192007-02-14 21:15:02 +01001018 data->fan_ctl |= i << 4;
corentin.labbeb74f3fd2007-06-13 20:27:36 +02001019 it87_write_value(data, IT87_REG_FAN_CTL, data->fan_ctl);
Jean Delvaref8d0c192007-02-14 21:15:02 +01001020 mutex_unlock(&data->update_lock);
1021
1022 return count;
1023}
Jean Delvare94ac7ee2010-03-05 22:17:16 +01001024static ssize_t show_pwm_temp_map(struct device *dev,
1025 struct device_attribute *attr, char *buf)
1026{
1027 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1028 int nr = sensor_attr->index;
1029
1030 struct it87_data *data = it87_update_device(dev);
1031 int map;
1032
1033 if (data->pwm_temp_map[nr] < 3)
1034 map = 1 << data->pwm_temp_map[nr];
1035 else
1036 map = 0; /* Should never happen */
1037 return sprintf(buf, "%d\n", map);
1038}
1039static ssize_t set_pwm_temp_map(struct device *dev,
1040 struct device_attribute *attr, const char *buf, size_t count)
1041{
1042 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1043 int nr = sensor_attr->index;
1044
1045 struct it87_data *data = dev_get_drvdata(dev);
1046 long val;
1047 u8 reg;
1048
Guenter Roeck4a0d71c2012-01-19 11:02:18 -08001049 /*
1050 * This check can go away if we ever support automatic fan speed
1051 * control on newer chips.
1052 */
Jean Delvare4f3f51b2010-03-05 22:17:21 +01001053 if (!has_old_autopwm(data)) {
1054 dev_notice(dev, "Mapping change disabled for safety reasons\n");
1055 return -EINVAL;
1056 }
1057
Frans Meulenbroeks179c4fd2012-01-04 20:58:52 +01001058 if (kstrtol(buf, 10, &val) < 0)
Jean Delvare94ac7ee2010-03-05 22:17:16 +01001059 return -EINVAL;
1060
1061 switch (val) {
1062 case (1 << 0):
1063 reg = 0x00;
1064 break;
1065 case (1 << 1):
1066 reg = 0x01;
1067 break;
1068 case (1 << 2):
1069 reg = 0x02;
1070 break;
1071 default:
1072 return -EINVAL;
1073 }
1074
1075 mutex_lock(&data->update_lock);
1076 data->pwm_temp_map[nr] = reg;
Guenter Roeck4a0d71c2012-01-19 11:02:18 -08001077 /*
1078 * If we are in automatic mode, write the temp mapping immediately;
1079 * otherwise, just store it for later use.
1080 */
Jean Delvare94ac7ee2010-03-05 22:17:16 +01001081 if (data->pwm_ctrl[nr] & 0x80) {
1082 data->pwm_ctrl[nr] = 0x80 | data->pwm_temp_map[nr];
1083 it87_write_value(data, IT87_REG_PWM(nr), data->pwm_ctrl[nr]);
1084 }
1085 mutex_unlock(&data->update_lock);
1086 return count;
1087}
Linus Torvalds1da177e2005-04-16 15:20:36 -07001088
Jean Delvare4f3f51b2010-03-05 22:17:21 +01001089static ssize_t show_auto_pwm(struct device *dev,
1090 struct device_attribute *attr, char *buf)
1091{
1092 struct it87_data *data = it87_update_device(dev);
1093 struct sensor_device_attribute_2 *sensor_attr =
1094 to_sensor_dev_attr_2(attr);
1095 int nr = sensor_attr->nr;
1096 int point = sensor_attr->index;
1097
Jean Delvare44c1bcd2010-10-28 20:31:51 +02001098 return sprintf(buf, "%d\n",
1099 pwm_from_reg(data, data->auto_pwm[nr][point]));
Jean Delvare4f3f51b2010-03-05 22:17:21 +01001100}
1101
1102static ssize_t set_auto_pwm(struct device *dev,
1103 struct device_attribute *attr, const char *buf, size_t count)
1104{
1105 struct it87_data *data = dev_get_drvdata(dev);
1106 struct sensor_device_attribute_2 *sensor_attr =
1107 to_sensor_dev_attr_2(attr);
1108 int nr = sensor_attr->nr;
1109 int point = sensor_attr->index;
1110 long val;
1111
Frans Meulenbroeks179c4fd2012-01-04 20:58:52 +01001112 if (kstrtol(buf, 10, &val) < 0 || val < 0 || val > 255)
Jean Delvare4f3f51b2010-03-05 22:17:21 +01001113 return -EINVAL;
1114
1115 mutex_lock(&data->update_lock);
Jean Delvare44c1bcd2010-10-28 20:31:51 +02001116 data->auto_pwm[nr][point] = pwm_to_reg(data, val);
Jean Delvare4f3f51b2010-03-05 22:17:21 +01001117 it87_write_value(data, IT87_REG_AUTO_PWM(nr, point),
1118 data->auto_pwm[nr][point]);
1119 mutex_unlock(&data->update_lock);
1120 return count;
1121}
1122
1123static ssize_t show_auto_temp(struct device *dev,
1124 struct device_attribute *attr, char *buf)
1125{
1126 struct it87_data *data = it87_update_device(dev);
1127 struct sensor_device_attribute_2 *sensor_attr =
1128 to_sensor_dev_attr_2(attr);
1129 int nr = sensor_attr->nr;
1130 int point = sensor_attr->index;
1131
1132 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->auto_temp[nr][point]));
1133}
1134
1135static ssize_t set_auto_temp(struct device *dev,
1136 struct device_attribute *attr, const char *buf, size_t count)
1137{
1138 struct it87_data *data = dev_get_drvdata(dev);
1139 struct sensor_device_attribute_2 *sensor_attr =
1140 to_sensor_dev_attr_2(attr);
1141 int nr = sensor_attr->nr;
1142 int point = sensor_attr->index;
1143 long val;
1144
Frans Meulenbroeks179c4fd2012-01-04 20:58:52 +01001145 if (kstrtol(buf, 10, &val) < 0 || val < -128000 || val > 127000)
Jean Delvare4f3f51b2010-03-05 22:17:21 +01001146 return -EINVAL;
1147
1148 mutex_lock(&data->update_lock);
1149 data->auto_temp[nr][point] = TEMP_TO_REG(val);
1150 it87_write_value(data, IT87_REG_AUTO_TEMP(nr, point),
1151 data->auto_temp[nr][point]);
1152 mutex_unlock(&data->update_lock);
1153 return count;
1154}
1155
Guenter Roecke1169ba2012-12-19 22:17:01 +01001156static SENSOR_DEVICE_ATTR_2(fan1_input, S_IRUGO, show_fan, NULL, 0, 0);
1157static SENSOR_DEVICE_ATTR_2(fan1_min, S_IRUGO | S_IWUSR, show_fan, set_fan,
1158 0, 1);
1159static SENSOR_DEVICE_ATTR(fan1_div, S_IRUGO | S_IWUSR, show_fan_div,
1160 set_fan_div, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001161
Guenter Roecke1169ba2012-12-19 22:17:01 +01001162static SENSOR_DEVICE_ATTR_2(fan2_input, S_IRUGO, show_fan, NULL, 1, 0);
1163static SENSOR_DEVICE_ATTR_2(fan2_min, S_IRUGO | S_IWUSR, show_fan, set_fan,
1164 1, 1);
1165static SENSOR_DEVICE_ATTR(fan2_div, S_IRUGO | S_IWUSR, show_fan_div,
1166 set_fan_div, 1);
1167
1168static SENSOR_DEVICE_ATTR_2(fan3_input, S_IRUGO, show_fan, NULL, 2, 0);
1169static SENSOR_DEVICE_ATTR_2(fan3_min, S_IRUGO | S_IWUSR, show_fan, set_fan,
1170 2, 1);
1171static SENSOR_DEVICE_ATTR(fan3_div, S_IRUGO | S_IWUSR, show_fan_div,
1172 set_fan_div, 2);
1173
1174static SENSOR_DEVICE_ATTR_2(fan4_input, S_IRUGO, show_fan, NULL, 3, 0);
1175static SENSOR_DEVICE_ATTR_2(fan4_min, S_IRUGO | S_IWUSR, show_fan, set_fan,
1176 3, 1);
1177
1178static SENSOR_DEVICE_ATTR_2(fan5_input, S_IRUGO, show_fan, NULL, 4, 0);
1179static SENSOR_DEVICE_ATTR_2(fan5_min, S_IRUGO | S_IWUSR, show_fan, set_fan,
1180 4, 1);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001181
Guenter Roeckc4458db2012-12-19 22:17:02 +01001182static SENSOR_DEVICE_ATTR(pwm1_enable, S_IRUGO | S_IWUSR,
1183 show_pwm_enable, set_pwm_enable, 0);
1184static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, show_pwm, set_pwm, 0);
1185static DEVICE_ATTR(pwm1_freq, S_IRUGO | S_IWUSR, show_pwm_freq, set_pwm_freq);
1186static SENSOR_DEVICE_ATTR(pwm1_auto_channels_temp, S_IRUGO | S_IWUSR,
1187 show_pwm_temp_map, set_pwm_temp_map, 0);
1188static SENSOR_DEVICE_ATTR_2(pwm1_auto_point1_pwm, S_IRUGO | S_IWUSR,
1189 show_auto_pwm, set_auto_pwm, 0, 0);
1190static SENSOR_DEVICE_ATTR_2(pwm1_auto_point2_pwm, S_IRUGO | S_IWUSR,
1191 show_auto_pwm, set_auto_pwm, 0, 1);
1192static SENSOR_DEVICE_ATTR_2(pwm1_auto_point3_pwm, S_IRUGO | S_IWUSR,
1193 show_auto_pwm, set_auto_pwm, 0, 2);
1194static SENSOR_DEVICE_ATTR_2(pwm1_auto_point4_pwm, S_IRUGO,
1195 show_auto_pwm, NULL, 0, 3);
1196static SENSOR_DEVICE_ATTR_2(pwm1_auto_point1_temp, S_IRUGO | S_IWUSR,
1197 show_auto_temp, set_auto_temp, 0, 1);
1198static SENSOR_DEVICE_ATTR_2(pwm1_auto_point1_temp_hyst, S_IRUGO | S_IWUSR,
1199 show_auto_temp, set_auto_temp, 0, 0);
1200static SENSOR_DEVICE_ATTR_2(pwm1_auto_point2_temp, S_IRUGO | S_IWUSR,
1201 show_auto_temp, set_auto_temp, 0, 2);
1202static SENSOR_DEVICE_ATTR_2(pwm1_auto_point3_temp, S_IRUGO | S_IWUSR,
1203 show_auto_temp, set_auto_temp, 0, 3);
1204static SENSOR_DEVICE_ATTR_2(pwm1_auto_point4_temp, S_IRUGO | S_IWUSR,
1205 show_auto_temp, set_auto_temp, 0, 4);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001206
Guenter Roeckc4458db2012-12-19 22:17:02 +01001207static SENSOR_DEVICE_ATTR(pwm2_enable, S_IRUGO | S_IWUSR,
1208 show_pwm_enable, set_pwm_enable, 1);
1209static SENSOR_DEVICE_ATTR(pwm2, S_IRUGO | S_IWUSR, show_pwm, set_pwm, 1);
1210static DEVICE_ATTR(pwm2_freq, S_IRUGO, show_pwm_freq, NULL);
1211static SENSOR_DEVICE_ATTR(pwm2_auto_channels_temp, S_IRUGO | S_IWUSR,
1212 show_pwm_temp_map, set_pwm_temp_map, 1);
1213static SENSOR_DEVICE_ATTR_2(pwm2_auto_point1_pwm, S_IRUGO | S_IWUSR,
1214 show_auto_pwm, set_auto_pwm, 1, 0);
1215static SENSOR_DEVICE_ATTR_2(pwm2_auto_point2_pwm, S_IRUGO | S_IWUSR,
1216 show_auto_pwm, set_auto_pwm, 1, 1);
1217static SENSOR_DEVICE_ATTR_2(pwm2_auto_point3_pwm, S_IRUGO | S_IWUSR,
1218 show_auto_pwm, set_auto_pwm, 1, 2);
1219static SENSOR_DEVICE_ATTR_2(pwm2_auto_point4_pwm, S_IRUGO,
1220 show_auto_pwm, NULL, 1, 3);
1221static SENSOR_DEVICE_ATTR_2(pwm2_auto_point1_temp, S_IRUGO | S_IWUSR,
1222 show_auto_temp, set_auto_temp, 1, 1);
1223static SENSOR_DEVICE_ATTR_2(pwm2_auto_point1_temp_hyst, S_IRUGO | S_IWUSR,
1224 show_auto_temp, set_auto_temp, 1, 0);
1225static SENSOR_DEVICE_ATTR_2(pwm2_auto_point2_temp, S_IRUGO | S_IWUSR,
1226 show_auto_temp, set_auto_temp, 1, 2);
1227static SENSOR_DEVICE_ATTR_2(pwm2_auto_point3_temp, S_IRUGO | S_IWUSR,
1228 show_auto_temp, set_auto_temp, 1, 3);
1229static SENSOR_DEVICE_ATTR_2(pwm2_auto_point4_temp, S_IRUGO | S_IWUSR,
1230 show_auto_temp, set_auto_temp, 1, 4);
1231
1232static SENSOR_DEVICE_ATTR(pwm3_enable, S_IRUGO | S_IWUSR,
1233 show_pwm_enable, set_pwm_enable, 2);
1234static SENSOR_DEVICE_ATTR(pwm3, S_IRUGO | S_IWUSR, show_pwm, set_pwm, 2);
1235static DEVICE_ATTR(pwm3_freq, S_IRUGO, show_pwm_freq, NULL);
1236static SENSOR_DEVICE_ATTR(pwm3_auto_channels_temp, S_IRUGO | S_IWUSR,
1237 show_pwm_temp_map, set_pwm_temp_map, 2);
1238static SENSOR_DEVICE_ATTR_2(pwm3_auto_point1_pwm, S_IRUGO | S_IWUSR,
1239 show_auto_pwm, set_auto_pwm, 2, 0);
1240static SENSOR_DEVICE_ATTR_2(pwm3_auto_point2_pwm, S_IRUGO | S_IWUSR,
1241 show_auto_pwm, set_auto_pwm, 2, 1);
1242static SENSOR_DEVICE_ATTR_2(pwm3_auto_point3_pwm, S_IRUGO | S_IWUSR,
1243 show_auto_pwm, set_auto_pwm, 2, 2);
1244static SENSOR_DEVICE_ATTR_2(pwm3_auto_point4_pwm, S_IRUGO,
1245 show_auto_pwm, NULL, 2, 3);
1246static SENSOR_DEVICE_ATTR_2(pwm3_auto_point1_temp, S_IRUGO | S_IWUSR,
1247 show_auto_temp, set_auto_temp, 2, 1);
1248static SENSOR_DEVICE_ATTR_2(pwm3_auto_point1_temp_hyst, S_IRUGO | S_IWUSR,
1249 show_auto_temp, set_auto_temp, 2, 0);
1250static SENSOR_DEVICE_ATTR_2(pwm3_auto_point2_temp, S_IRUGO | S_IWUSR,
1251 show_auto_temp, set_auto_temp, 2, 2);
1252static SENSOR_DEVICE_ATTR_2(pwm3_auto_point3_temp, S_IRUGO | S_IWUSR,
1253 show_auto_temp, set_auto_temp, 2, 3);
1254static SENSOR_DEVICE_ATTR_2(pwm3_auto_point4_temp, S_IRUGO | S_IWUSR,
1255 show_auto_temp, set_auto_temp, 2, 4);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001256
1257/* Alarms */
Jean Delvare5f2dc792010-03-05 22:17:18 +01001258static ssize_t show_alarms(struct device *dev, struct device_attribute *attr,
1259 char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001260{
1261 struct it87_data *data = it87_update_device(dev);
Jean Delvare68188ba2005-05-16 18:52:38 +02001262 return sprintf(buf, "%u\n", data->alarms);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001263}
Jean Delvare1d66c642005-04-18 21:16:59 -07001264static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001265
Jean Delvare0124dd72007-11-25 16:16:41 +01001266static ssize_t show_alarm(struct device *dev, struct device_attribute *attr,
1267 char *buf)
1268{
1269 int bitnr = to_sensor_dev_attr(attr)->index;
1270 struct it87_data *data = it87_update_device(dev);
1271 return sprintf(buf, "%u\n", (data->alarms >> bitnr) & 1);
1272}
Jean Delvare3d30f9e2011-07-25 21:46:10 +02001273
1274static ssize_t clear_intrusion(struct device *dev, struct device_attribute
1275 *attr, const char *buf, size_t count)
1276{
1277 struct it87_data *data = dev_get_drvdata(dev);
1278 long val;
1279 int config;
1280
Frans Meulenbroeks179c4fd2012-01-04 20:58:52 +01001281 if (kstrtol(buf, 10, &val) < 0 || val != 0)
Jean Delvare3d30f9e2011-07-25 21:46:10 +02001282 return -EINVAL;
1283
1284 mutex_lock(&data->update_lock);
1285 config = it87_read_value(data, IT87_REG_CONFIG);
1286 if (config < 0) {
1287 count = config;
1288 } else {
1289 config |= 1 << 5;
1290 it87_write_value(data, IT87_REG_CONFIG, config);
1291 /* Invalidate cache to force re-read */
1292 data->valid = 0;
1293 }
1294 mutex_unlock(&data->update_lock);
1295
1296 return count;
1297}
1298
Jean Delvare0124dd72007-11-25 16:16:41 +01001299static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 8);
1300static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 9);
1301static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 10);
1302static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 11);
1303static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 12);
1304static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 13);
1305static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 14);
1306static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 15);
1307static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 0);
1308static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 1);
1309static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 2);
1310static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 3);
1311static SENSOR_DEVICE_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 6);
1312static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 16);
1313static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 17);
1314static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 18);
Jean Delvare3d30f9e2011-07-25 21:46:10 +02001315static SENSOR_DEVICE_ATTR(intrusion0_alarm, S_IRUGO | S_IWUSR,
1316 show_alarm, clear_intrusion, 4);
Jean Delvare0124dd72007-11-25 16:16:41 +01001317
Jean Delvared9b327c2010-03-05 22:17:17 +01001318static ssize_t show_beep(struct device *dev, struct device_attribute *attr,
1319 char *buf)
1320{
1321 int bitnr = to_sensor_dev_attr(attr)->index;
1322 struct it87_data *data = it87_update_device(dev);
1323 return sprintf(buf, "%u\n", (data->beeps >> bitnr) & 1);
1324}
1325static ssize_t set_beep(struct device *dev, struct device_attribute *attr,
1326 const char *buf, size_t count)
1327{
1328 int bitnr = to_sensor_dev_attr(attr)->index;
1329 struct it87_data *data = dev_get_drvdata(dev);
1330 long val;
1331
Frans Meulenbroeks179c4fd2012-01-04 20:58:52 +01001332 if (kstrtol(buf, 10, &val) < 0
Jean Delvared9b327c2010-03-05 22:17:17 +01001333 || (val != 0 && val != 1))
1334 return -EINVAL;
1335
1336 mutex_lock(&data->update_lock);
1337 data->beeps = it87_read_value(data, IT87_REG_BEEP_ENABLE);
1338 if (val)
1339 data->beeps |= (1 << bitnr);
1340 else
1341 data->beeps &= ~(1 << bitnr);
1342 it87_write_value(data, IT87_REG_BEEP_ENABLE, data->beeps);
1343 mutex_unlock(&data->update_lock);
1344 return count;
1345}
1346
1347static SENSOR_DEVICE_ATTR(in0_beep, S_IRUGO | S_IWUSR,
1348 show_beep, set_beep, 1);
1349static SENSOR_DEVICE_ATTR(in1_beep, S_IRUGO, show_beep, NULL, 1);
1350static SENSOR_DEVICE_ATTR(in2_beep, S_IRUGO, show_beep, NULL, 1);
1351static SENSOR_DEVICE_ATTR(in3_beep, S_IRUGO, show_beep, NULL, 1);
1352static SENSOR_DEVICE_ATTR(in4_beep, S_IRUGO, show_beep, NULL, 1);
1353static SENSOR_DEVICE_ATTR(in5_beep, S_IRUGO, show_beep, NULL, 1);
1354static SENSOR_DEVICE_ATTR(in6_beep, S_IRUGO, show_beep, NULL, 1);
1355static SENSOR_DEVICE_ATTR(in7_beep, S_IRUGO, show_beep, NULL, 1);
1356/* fanX_beep writability is set later */
1357static SENSOR_DEVICE_ATTR(fan1_beep, S_IRUGO, show_beep, set_beep, 0);
1358static SENSOR_DEVICE_ATTR(fan2_beep, S_IRUGO, show_beep, set_beep, 0);
1359static SENSOR_DEVICE_ATTR(fan3_beep, S_IRUGO, show_beep, set_beep, 0);
1360static SENSOR_DEVICE_ATTR(fan4_beep, S_IRUGO, show_beep, set_beep, 0);
1361static SENSOR_DEVICE_ATTR(fan5_beep, S_IRUGO, show_beep, set_beep, 0);
1362static SENSOR_DEVICE_ATTR(temp1_beep, S_IRUGO | S_IWUSR,
1363 show_beep, set_beep, 2);
1364static SENSOR_DEVICE_ATTR(temp2_beep, S_IRUGO, show_beep, NULL, 2);
1365static SENSOR_DEVICE_ATTR(temp3_beep, S_IRUGO, show_beep, NULL, 2);
1366
Jean Delvare5f2dc792010-03-05 22:17:18 +01001367static ssize_t show_vrm_reg(struct device *dev, struct device_attribute *attr,
1368 char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001369{
Jean Delvare90d66192007-10-08 18:24:35 +02001370 struct it87_data *data = dev_get_drvdata(dev);
Jean Delvarea7be58a2005-12-18 16:40:14 +01001371 return sprintf(buf, "%u\n", data->vrm);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001372}
Jean Delvare5f2dc792010-03-05 22:17:18 +01001373static ssize_t store_vrm_reg(struct device *dev, struct device_attribute *attr,
1374 const char *buf, size_t count)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001375{
corentin.labbeb74f3fd2007-06-13 20:27:36 +02001376 struct it87_data *data = dev_get_drvdata(dev);
Jean Delvaref5f64502010-03-05 22:17:19 +01001377 unsigned long val;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001378
Frans Meulenbroeks179c4fd2012-01-04 20:58:52 +01001379 if (kstrtoul(buf, 10, &val) < 0)
Jean Delvaref5f64502010-03-05 22:17:19 +01001380 return -EINVAL;
1381
Linus Torvalds1da177e2005-04-16 15:20:36 -07001382 data->vrm = val;
1383
1384 return count;
1385}
1386static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001387
Jean Delvare5f2dc792010-03-05 22:17:18 +01001388static ssize_t show_vid_reg(struct device *dev, struct device_attribute *attr,
1389 char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001390{
1391 struct it87_data *data = it87_update_device(dev);
1392 return sprintf(buf, "%ld\n", (long) vid_from_reg(data->vid, data->vrm));
1393}
1394static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL);
Jean Delvare87808be2006-09-24 21:17:13 +02001395
Jean Delvare738e5e02010-08-14 21:08:50 +02001396static ssize_t show_label(struct device *dev, struct device_attribute *attr,
1397 char *buf)
1398{
Guenter Roeck3c4c4972012-01-20 09:29:44 -08001399 static const char * const labels[] = {
Jean Delvare738e5e02010-08-14 21:08:50 +02001400 "+5V",
1401 "5VSB",
1402 "Vbat",
1403 };
Guenter Roeck3c4c4972012-01-20 09:29:44 -08001404 static const char * const labels_it8721[] = {
Jean Delvare44c1bcd2010-10-28 20:31:51 +02001405 "+3.3V",
1406 "3VSB",
1407 "Vbat",
1408 };
1409 struct it87_data *data = dev_get_drvdata(dev);
Jean Delvare738e5e02010-08-14 21:08:50 +02001410 int nr = to_sensor_dev_attr(attr)->index;
1411
Jean Delvare16b5dda2012-01-16 22:51:48 +01001412 return sprintf(buf, "%s\n", has_12mv_adc(data) ? labels_it8721[nr]
1413 : labels[nr]);
Jean Delvare738e5e02010-08-14 21:08:50 +02001414}
1415static SENSOR_DEVICE_ATTR(in3_label, S_IRUGO, show_label, NULL, 0);
1416static SENSOR_DEVICE_ATTR(in7_label, S_IRUGO, show_label, NULL, 1);
1417static SENSOR_DEVICE_ATTR(in8_label, S_IRUGO, show_label, NULL, 2);
1418
corentin.labbeb74f3fd2007-06-13 20:27:36 +02001419static ssize_t show_name(struct device *dev, struct device_attribute
1420 *devattr, char *buf)
1421{
1422 struct it87_data *data = dev_get_drvdata(dev);
1423 return sprintf(buf, "%s\n", data->name);
1424}
1425static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
1426
Guenter Roeck9172b5d2012-03-24 21:49:54 -07001427static struct attribute *it87_attributes_in[9][5] = {
1428{
Jean Delvare87808be2006-09-24 21:17:13 +02001429 &sensor_dev_attr_in0_input.dev_attr.attr,
Jean Delvare87808be2006-09-24 21:17:13 +02001430 &sensor_dev_attr_in0_min.dev_attr.attr,
Jean Delvare87808be2006-09-24 21:17:13 +02001431 &sensor_dev_attr_in0_max.dev_attr.attr,
Jean Delvare0124dd72007-11-25 16:16:41 +01001432 &sensor_dev_attr_in0_alarm.dev_attr.attr,
Guenter Roeck9172b5d2012-03-24 21:49:54 -07001433 NULL
1434}, {
1435 &sensor_dev_attr_in1_input.dev_attr.attr,
1436 &sensor_dev_attr_in1_min.dev_attr.attr,
1437 &sensor_dev_attr_in1_max.dev_attr.attr,
Jean Delvare0124dd72007-11-25 16:16:41 +01001438 &sensor_dev_attr_in1_alarm.dev_attr.attr,
Guenter Roeck9172b5d2012-03-24 21:49:54 -07001439 NULL
1440}, {
1441 &sensor_dev_attr_in2_input.dev_attr.attr,
1442 &sensor_dev_attr_in2_min.dev_attr.attr,
1443 &sensor_dev_attr_in2_max.dev_attr.attr,
Jean Delvare0124dd72007-11-25 16:16:41 +01001444 &sensor_dev_attr_in2_alarm.dev_attr.attr,
Guenter Roeck9172b5d2012-03-24 21:49:54 -07001445 NULL
1446}, {
1447 &sensor_dev_attr_in3_input.dev_attr.attr,
1448 &sensor_dev_attr_in3_min.dev_attr.attr,
1449 &sensor_dev_attr_in3_max.dev_attr.attr,
Jean Delvare0124dd72007-11-25 16:16:41 +01001450 &sensor_dev_attr_in3_alarm.dev_attr.attr,
Guenter Roeck9172b5d2012-03-24 21:49:54 -07001451 NULL
1452}, {
1453 &sensor_dev_attr_in4_input.dev_attr.attr,
1454 &sensor_dev_attr_in4_min.dev_attr.attr,
1455 &sensor_dev_attr_in4_max.dev_attr.attr,
Jean Delvare0124dd72007-11-25 16:16:41 +01001456 &sensor_dev_attr_in4_alarm.dev_attr.attr,
Guenter Roeck9172b5d2012-03-24 21:49:54 -07001457 NULL
1458}, {
1459 &sensor_dev_attr_in5_input.dev_attr.attr,
1460 &sensor_dev_attr_in5_min.dev_attr.attr,
1461 &sensor_dev_attr_in5_max.dev_attr.attr,
Jean Delvare0124dd72007-11-25 16:16:41 +01001462 &sensor_dev_attr_in5_alarm.dev_attr.attr,
Guenter Roeck9172b5d2012-03-24 21:49:54 -07001463 NULL
1464}, {
1465 &sensor_dev_attr_in6_input.dev_attr.attr,
1466 &sensor_dev_attr_in6_min.dev_attr.attr,
1467 &sensor_dev_attr_in6_max.dev_attr.attr,
Jean Delvare0124dd72007-11-25 16:16:41 +01001468 &sensor_dev_attr_in6_alarm.dev_attr.attr,
Guenter Roeck9172b5d2012-03-24 21:49:54 -07001469 NULL
1470}, {
1471 &sensor_dev_attr_in7_input.dev_attr.attr,
1472 &sensor_dev_attr_in7_min.dev_attr.attr,
1473 &sensor_dev_attr_in7_max.dev_attr.attr,
Jean Delvare0124dd72007-11-25 16:16:41 +01001474 &sensor_dev_attr_in7_alarm.dev_attr.attr,
Guenter Roeck9172b5d2012-03-24 21:49:54 -07001475 NULL
1476}, {
1477 &sensor_dev_attr_in8_input.dev_attr.attr,
1478 NULL
1479} };
Jean Delvare87808be2006-09-24 21:17:13 +02001480
Guenter Roeck9172b5d2012-03-24 21:49:54 -07001481static const struct attribute_group it87_group_in[9] = {
1482 { .attrs = it87_attributes_in[0] },
1483 { .attrs = it87_attributes_in[1] },
1484 { .attrs = it87_attributes_in[2] },
1485 { .attrs = it87_attributes_in[3] },
1486 { .attrs = it87_attributes_in[4] },
1487 { .attrs = it87_attributes_in[5] },
1488 { .attrs = it87_attributes_in[6] },
1489 { .attrs = it87_attributes_in[7] },
1490 { .attrs = it87_attributes_in[8] },
1491};
1492
Guenter Roeck4573acb2012-03-26 16:17:41 -07001493static struct attribute *it87_attributes_temp[3][6] = {
1494{
Jean Delvare87808be2006-09-24 21:17:13 +02001495 &sensor_dev_attr_temp1_input.dev_attr.attr,
Jean Delvare87808be2006-09-24 21:17:13 +02001496 &sensor_dev_attr_temp1_max.dev_attr.attr,
Jean Delvare87808be2006-09-24 21:17:13 +02001497 &sensor_dev_attr_temp1_min.dev_attr.attr,
Jean Delvare87808be2006-09-24 21:17:13 +02001498 &sensor_dev_attr_temp1_type.dev_attr.attr,
Jean Delvare0124dd72007-11-25 16:16:41 +01001499 &sensor_dev_attr_temp1_alarm.dev_attr.attr,
Guenter Roeck4573acb2012-03-26 16:17:41 -07001500 NULL
1501} , {
1502 &sensor_dev_attr_temp2_input.dev_attr.attr,
1503 &sensor_dev_attr_temp2_max.dev_attr.attr,
1504 &sensor_dev_attr_temp2_min.dev_attr.attr,
1505 &sensor_dev_attr_temp2_type.dev_attr.attr,
Jean Delvare0124dd72007-11-25 16:16:41 +01001506 &sensor_dev_attr_temp2_alarm.dev_attr.attr,
Guenter Roeck4573acb2012-03-26 16:17:41 -07001507 NULL
1508} , {
1509 &sensor_dev_attr_temp3_input.dev_attr.attr,
1510 &sensor_dev_attr_temp3_max.dev_attr.attr,
1511 &sensor_dev_attr_temp3_min.dev_attr.attr,
1512 &sensor_dev_attr_temp3_type.dev_attr.attr,
Jean Delvare0124dd72007-11-25 16:16:41 +01001513 &sensor_dev_attr_temp3_alarm.dev_attr.attr,
Guenter Roeck4573acb2012-03-26 16:17:41 -07001514 NULL
1515} };
Jean Delvare87808be2006-09-24 21:17:13 +02001516
Guenter Roeck4573acb2012-03-26 16:17:41 -07001517static const struct attribute_group it87_group_temp[3] = {
1518 { .attrs = it87_attributes_temp[0] },
1519 { .attrs = it87_attributes_temp[1] },
1520 { .attrs = it87_attributes_temp[2] },
1521};
1522
Guenter Roeck161d8982012-12-19 22:17:01 +01001523static struct attribute *it87_attributes_temp_offset[] = {
1524 &sensor_dev_attr_temp1_offset.dev_attr.attr,
1525 &sensor_dev_attr_temp2_offset.dev_attr.attr,
1526 &sensor_dev_attr_temp3_offset.dev_attr.attr,
1527};
1528
Guenter Roeck4573acb2012-03-26 16:17:41 -07001529static struct attribute *it87_attributes[] = {
Jean Delvare87808be2006-09-24 21:17:13 +02001530 &dev_attr_alarms.attr,
Jean Delvare3d30f9e2011-07-25 21:46:10 +02001531 &sensor_dev_attr_intrusion0_alarm.dev_attr.attr,
corentin.labbeb74f3fd2007-06-13 20:27:36 +02001532 &dev_attr_name.attr,
Jean Delvare87808be2006-09-24 21:17:13 +02001533 NULL
1534};
1535
1536static const struct attribute_group it87_group = {
1537 .attrs = it87_attributes,
1538};
1539
Guenter Roeck9172b5d2012-03-24 21:49:54 -07001540static struct attribute *it87_attributes_in_beep[] = {
Jean Delvared9b327c2010-03-05 22:17:17 +01001541 &sensor_dev_attr_in0_beep.dev_attr.attr,
1542 &sensor_dev_attr_in1_beep.dev_attr.attr,
1543 &sensor_dev_attr_in2_beep.dev_attr.attr,
1544 &sensor_dev_attr_in3_beep.dev_attr.attr,
1545 &sensor_dev_attr_in4_beep.dev_attr.attr,
1546 &sensor_dev_attr_in5_beep.dev_attr.attr,
1547 &sensor_dev_attr_in6_beep.dev_attr.attr,
1548 &sensor_dev_attr_in7_beep.dev_attr.attr,
Guenter Roeck9172b5d2012-03-24 21:49:54 -07001549 NULL
1550};
Jean Delvared9b327c2010-03-05 22:17:17 +01001551
Guenter Roeck4573acb2012-03-26 16:17:41 -07001552static struct attribute *it87_attributes_temp_beep[] = {
Jean Delvared9b327c2010-03-05 22:17:17 +01001553 &sensor_dev_attr_temp1_beep.dev_attr.attr,
1554 &sensor_dev_attr_temp2_beep.dev_attr.attr,
1555 &sensor_dev_attr_temp3_beep.dev_attr.attr,
Jean Delvared9b327c2010-03-05 22:17:17 +01001556};
1557
Guenter Roecke1169ba2012-12-19 22:17:01 +01001558static struct attribute *it87_attributes_fan[5][3+1] = { {
Jean Delvare87808be2006-09-24 21:17:13 +02001559 &sensor_dev_attr_fan1_input.dev_attr.attr,
1560 &sensor_dev_attr_fan1_min.dev_attr.attr,
Jean Delvare723a0aa2010-03-05 22:17:16 +01001561 &sensor_dev_attr_fan1_alarm.dev_attr.attr,
1562 NULL
1563}, {
Jean Delvare87808be2006-09-24 21:17:13 +02001564 &sensor_dev_attr_fan2_input.dev_attr.attr,
1565 &sensor_dev_attr_fan2_min.dev_attr.attr,
Jean Delvare723a0aa2010-03-05 22:17:16 +01001566 &sensor_dev_attr_fan2_alarm.dev_attr.attr,
1567 NULL
1568}, {
Jean Delvare87808be2006-09-24 21:17:13 +02001569 &sensor_dev_attr_fan3_input.dev_attr.attr,
1570 &sensor_dev_attr_fan3_min.dev_attr.attr,
Jean Delvare0124dd72007-11-25 16:16:41 +01001571 &sensor_dev_attr_fan3_alarm.dev_attr.attr,
Jean Delvare723a0aa2010-03-05 22:17:16 +01001572 NULL
Guenter Roecke1169ba2012-12-19 22:17:01 +01001573}, {
1574 &sensor_dev_attr_fan4_input.dev_attr.attr,
1575 &sensor_dev_attr_fan4_min.dev_attr.attr,
1576 &sensor_dev_attr_fan4_alarm.dev_attr.attr,
1577 NULL
1578}, {
1579 &sensor_dev_attr_fan5_input.dev_attr.attr,
1580 &sensor_dev_attr_fan5_min.dev_attr.attr,
1581 &sensor_dev_attr_fan5_alarm.dev_attr.attr,
1582 NULL
Jean Delvare723a0aa2010-03-05 22:17:16 +01001583} };
Jean Delvare0124dd72007-11-25 16:16:41 +01001584
Guenter Roecke1169ba2012-12-19 22:17:01 +01001585static const struct attribute_group it87_group_fan[5] = {
Jean Delvare723a0aa2010-03-05 22:17:16 +01001586 { .attrs = it87_attributes_fan[0] },
1587 { .attrs = it87_attributes_fan[1] },
1588 { .attrs = it87_attributes_fan[2] },
Guenter Roecke1169ba2012-12-19 22:17:01 +01001589 { .attrs = it87_attributes_fan[3] },
1590 { .attrs = it87_attributes_fan[4] },
Jean Delvare723a0aa2010-03-05 22:17:16 +01001591};
1592
Guenter Roecke1169ba2012-12-19 22:17:01 +01001593static const struct attribute *it87_attributes_fan_div[] = {
1594 &sensor_dev_attr_fan1_div.dev_attr.attr,
1595 &sensor_dev_attr_fan2_div.dev_attr.attr,
1596 &sensor_dev_attr_fan3_div.dev_attr.attr,
1597};
Jean Delvare723a0aa2010-03-05 22:17:16 +01001598
1599static struct attribute *it87_attributes_pwm[3][4+1] = { {
Jean Delvare87808be2006-09-24 21:17:13 +02001600 &sensor_dev_attr_pwm1_enable.dev_attr.attr,
Jean Delvare87808be2006-09-24 21:17:13 +02001601 &sensor_dev_attr_pwm1.dev_attr.attr,
Jean Delvared5b0b5d2007-12-14 14:41:53 +01001602 &dev_attr_pwm1_freq.attr,
Jean Delvare94ac7ee2010-03-05 22:17:16 +01001603 &sensor_dev_attr_pwm1_auto_channels_temp.dev_attr.attr,
Jean Delvare723a0aa2010-03-05 22:17:16 +01001604 NULL
1605}, {
1606 &sensor_dev_attr_pwm2_enable.dev_attr.attr,
1607 &sensor_dev_attr_pwm2.dev_attr.attr,
1608 &dev_attr_pwm2_freq.attr,
Jean Delvare94ac7ee2010-03-05 22:17:16 +01001609 &sensor_dev_attr_pwm2_auto_channels_temp.dev_attr.attr,
Jean Delvare723a0aa2010-03-05 22:17:16 +01001610 NULL
1611}, {
1612 &sensor_dev_attr_pwm3_enable.dev_attr.attr,
1613 &sensor_dev_attr_pwm3.dev_attr.attr,
1614 &dev_attr_pwm3_freq.attr,
Jean Delvare94ac7ee2010-03-05 22:17:16 +01001615 &sensor_dev_attr_pwm3_auto_channels_temp.dev_attr.attr,
Jean Delvare723a0aa2010-03-05 22:17:16 +01001616 NULL
1617} };
Jean Delvare87808be2006-09-24 21:17:13 +02001618
Jean Delvare723a0aa2010-03-05 22:17:16 +01001619static const struct attribute_group it87_group_pwm[3] = {
1620 { .attrs = it87_attributes_pwm[0] },
1621 { .attrs = it87_attributes_pwm[1] },
1622 { .attrs = it87_attributes_pwm[2] },
1623};
1624
Jean Delvare4f3f51b2010-03-05 22:17:21 +01001625static struct attribute *it87_attributes_autopwm[3][9+1] = { {
1626 &sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr,
1627 &sensor_dev_attr_pwm1_auto_point2_pwm.dev_attr.attr,
1628 &sensor_dev_attr_pwm1_auto_point3_pwm.dev_attr.attr,
1629 &sensor_dev_attr_pwm1_auto_point4_pwm.dev_attr.attr,
1630 &sensor_dev_attr_pwm1_auto_point1_temp.dev_attr.attr,
1631 &sensor_dev_attr_pwm1_auto_point1_temp_hyst.dev_attr.attr,
1632 &sensor_dev_attr_pwm1_auto_point2_temp.dev_attr.attr,
1633 &sensor_dev_attr_pwm1_auto_point3_temp.dev_attr.attr,
1634 &sensor_dev_attr_pwm1_auto_point4_temp.dev_attr.attr,
1635 NULL
1636}, {
1637 &sensor_dev_attr_pwm2_auto_point1_pwm.dev_attr.attr,
1638 &sensor_dev_attr_pwm2_auto_point2_pwm.dev_attr.attr,
1639 &sensor_dev_attr_pwm2_auto_point3_pwm.dev_attr.attr,
1640 &sensor_dev_attr_pwm2_auto_point4_pwm.dev_attr.attr,
1641 &sensor_dev_attr_pwm2_auto_point1_temp.dev_attr.attr,
1642 &sensor_dev_attr_pwm2_auto_point1_temp_hyst.dev_attr.attr,
1643 &sensor_dev_attr_pwm2_auto_point2_temp.dev_attr.attr,
1644 &sensor_dev_attr_pwm2_auto_point3_temp.dev_attr.attr,
1645 &sensor_dev_attr_pwm2_auto_point4_temp.dev_attr.attr,
1646 NULL
1647}, {
1648 &sensor_dev_attr_pwm3_auto_point1_pwm.dev_attr.attr,
1649 &sensor_dev_attr_pwm3_auto_point2_pwm.dev_attr.attr,
1650 &sensor_dev_attr_pwm3_auto_point3_pwm.dev_attr.attr,
1651 &sensor_dev_attr_pwm3_auto_point4_pwm.dev_attr.attr,
1652 &sensor_dev_attr_pwm3_auto_point1_temp.dev_attr.attr,
1653 &sensor_dev_attr_pwm3_auto_point1_temp_hyst.dev_attr.attr,
1654 &sensor_dev_attr_pwm3_auto_point2_temp.dev_attr.attr,
1655 &sensor_dev_attr_pwm3_auto_point3_temp.dev_attr.attr,
1656 &sensor_dev_attr_pwm3_auto_point4_temp.dev_attr.attr,
1657 NULL
1658} };
1659
1660static const struct attribute_group it87_group_autopwm[3] = {
1661 { .attrs = it87_attributes_autopwm[0] },
1662 { .attrs = it87_attributes_autopwm[1] },
1663 { .attrs = it87_attributes_autopwm[2] },
1664};
1665
Jean Delvared9b327c2010-03-05 22:17:17 +01001666static struct attribute *it87_attributes_fan_beep[] = {
1667 &sensor_dev_attr_fan1_beep.dev_attr.attr,
1668 &sensor_dev_attr_fan2_beep.dev_attr.attr,
1669 &sensor_dev_attr_fan3_beep.dev_attr.attr,
1670 &sensor_dev_attr_fan4_beep.dev_attr.attr,
1671 &sensor_dev_attr_fan5_beep.dev_attr.attr,
1672};
1673
Jean Delvare6a8d7ac2010-03-05 22:17:16 +01001674static struct attribute *it87_attributes_vid[] = {
Jean Delvare87808be2006-09-24 21:17:13 +02001675 &dev_attr_vrm.attr,
1676 &dev_attr_cpu0_vid.attr,
1677 NULL
1678};
1679
Jean Delvare6a8d7ac2010-03-05 22:17:16 +01001680static const struct attribute_group it87_group_vid = {
1681 .attrs = it87_attributes_vid,
Jean Delvare87808be2006-09-24 21:17:13 +02001682};
Linus Torvalds1da177e2005-04-16 15:20:36 -07001683
Jean Delvare738e5e02010-08-14 21:08:50 +02001684static struct attribute *it87_attributes_label[] = {
1685 &sensor_dev_attr_in3_label.dev_attr.attr,
1686 &sensor_dev_attr_in7_label.dev_attr.attr,
1687 &sensor_dev_attr_in8_label.dev_attr.attr,
1688 NULL
1689};
1690
1691static const struct attribute_group it87_group_label = {
Jean Delvarefa8b6972011-07-17 18:39:19 +02001692 .attrs = it87_attributes_label,
Jean Delvare738e5e02010-08-14 21:08:50 +02001693};
1694
Jean Delvare2d8672c2005-07-19 23:56:35 +02001695/* SuperIO detection - will change isa_address if a chip is found */
corentin.labbeb74f3fd2007-06-13 20:27:36 +02001696static int __init it87_find(unsigned short *address,
1697 struct it87_sio_data *sio_data)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001698{
Nat Gurumoorthy5b0380c2011-05-25 20:43:33 +02001699 int err;
corentin.labbeb74f3fd2007-06-13 20:27:36 +02001700 u16 chip_type;
Jean Delvare98dd22c2008-10-09 15:33:58 +02001701 const char *board_vendor, *board_name;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001702
Nat Gurumoorthy5b0380c2011-05-25 20:43:33 +02001703 err = superio_enter();
1704 if (err)
1705 return err;
1706
1707 err = -ENODEV;
Jean Delvare67b671b2007-12-06 23:13:42 +01001708 chip_type = force_id ? force_id : superio_inw(DEVID);
corentin.labbeb74f3fd2007-06-13 20:27:36 +02001709
1710 switch (chip_type) {
1711 case IT8705F_DEVID:
1712 sio_data->type = it87;
1713 break;
1714 case IT8712F_DEVID:
1715 sio_data->type = it8712;
1716 break;
1717 case IT8716F_DEVID:
1718 case IT8726F_DEVID:
1719 sio_data->type = it8716;
1720 break;
1721 case IT8718F_DEVID:
1722 sio_data->type = it8718;
1723 break;
Jean-Marc Spaggiarib4da93e2009-01-07 16:37:32 +01001724 case IT8720F_DEVID:
1725 sio_data->type = it8720;
1726 break;
Jean Delvare44c1bcd2010-10-28 20:31:51 +02001727 case IT8721F_DEVID:
1728 sio_data->type = it8721;
1729 break;
Jean Delvare16b5dda2012-01-16 22:51:48 +01001730 case IT8728F_DEVID:
1731 sio_data->type = it8728;
1732 break;
Guenter Roeckb0636702012-09-07 17:34:41 -06001733 case IT8771E_DEVID:
1734 sio_data->type = it8771;
1735 break;
1736 case IT8772E_DEVID:
1737 sio_data->type = it8772;
1738 break;
Guenter Roeck0531d982012-03-02 11:46:44 -08001739 case IT8782F_DEVID:
1740 sio_data->type = it8782;
1741 break;
1742 case IT8783E_DEVID:
1743 sio_data->type = it8783;
1744 break;
corentin.labbeb74f3fd2007-06-13 20:27:36 +02001745 case 0xffff: /* No device at all */
1746 goto exit;
1747 default:
Joe Perchesa8ca1032011-01-12 21:55:10 +01001748 pr_debug("Unsupported chip (DEVID=0x%x)\n", chip_type);
corentin.labbeb74f3fd2007-06-13 20:27:36 +02001749 goto exit;
1750 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001751
Jean Delvare87673dd2006-08-28 14:37:19 +02001752 superio_select(PME);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001753 if (!(superio_inb(IT87_ACT_REG) & 0x01)) {
Joe Perchesa8ca1032011-01-12 21:55:10 +01001754 pr_info("Device not activated, skipping\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07001755 goto exit;
1756 }
1757
1758 *address = superio_inw(IT87_BASE_REG) & ~(IT87_EXTENT - 1);
1759 if (*address == 0) {
Joe Perchesa8ca1032011-01-12 21:55:10 +01001760 pr_info("Base address not set, skipping\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07001761 goto exit;
1762 }
1763
1764 err = 0;
Andrew Paprocki04751692008-08-06 22:41:06 +02001765 sio_data->revision = superio_inb(DEVREV) & 0x0f;
Joe Perchesa8ca1032011-01-12 21:55:10 +01001766 pr_info("Found IT%04xF chip at 0x%x, revision %d\n",
Andrew Paprocki04751692008-08-06 22:41:06 +02001767 chip_type, *address, sio_data->revision);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001768
Jean Delvare738e5e02010-08-14 21:08:50 +02001769 /* in8 (Vbat) is always internal */
1770 sio_data->internal = (1 << 2);
1771
Jean Delvare87673dd2006-08-28 14:37:19 +02001772 /* Read GPIO config and VID value from LDN 7 (GPIO) */
Jean Delvare895ff262009-12-09 20:35:47 +01001773 if (sio_data->type == it87) {
1774 /* The IT8705F doesn't have VID pins at all */
1775 sio_data->skip_vid = 1;
Jean Delvared9b327c2010-03-05 22:17:17 +01001776
1777 /* The IT8705F has a different LD number for GPIO */
1778 superio_select(5);
1779 sio_data->beep_pin = superio_inb(IT87_SIO_BEEP_PIN_REG) & 0x3f;
Guenter Roeck0531d982012-03-02 11:46:44 -08001780 } else if (sio_data->type == it8783) {
1781 int reg25, reg27, reg2A, reg2C, regEF;
Guenter Roeck0531d982012-03-02 11:46:44 -08001782
1783 sio_data->skip_vid = 1; /* No VID */
1784
1785 superio_select(GPIO);
1786
1787 reg25 = superio_inb(IT87_SIO_GPIO1_REG);
1788 reg27 = superio_inb(IT87_SIO_GPIO3_REG);
1789 reg2A = superio_inb(IT87_SIO_PINX1_REG);
1790 reg2C = superio_inb(IT87_SIO_PINX2_REG);
1791 regEF = superio_inb(IT87_SIO_SPI_REG);
1792
Guenter Roeck0531d982012-03-02 11:46:44 -08001793 /* Check if fan3 is there or not */
Guenter Roeck9172b5d2012-03-24 21:49:54 -07001794 if ((reg27 & (1 << 0)) || !(reg2C & (1 << 2)))
Guenter Roeck0531d982012-03-02 11:46:44 -08001795 sio_data->skip_fan |= (1 << 2);
1796 if ((reg25 & (1 << 4))
1797 || (!(reg2A & (1 << 1)) && (regEF & (1 << 0))))
1798 sio_data->skip_pwm |= (1 << 2);
1799
1800 /* Check if fan2 is there or not */
1801 if (reg27 & (1 << 7))
1802 sio_data->skip_fan |= (1 << 1);
1803 if (reg27 & (1 << 3))
1804 sio_data->skip_pwm |= (1 << 1);
1805
1806 /* VIN5 */
Guenter Roeck9172b5d2012-03-24 21:49:54 -07001807 if ((reg27 & (1 << 0)) || (reg2C & (1 << 2)))
1808 sio_data->skip_in |= (1 << 5); /* No VIN5 */
Guenter Roeck0531d982012-03-02 11:46:44 -08001809
1810 /* VIN6 */
Guenter Roeck9172b5d2012-03-24 21:49:54 -07001811 if (reg27 & (1 << 1))
1812 sio_data->skip_in |= (1 << 6); /* No VIN6 */
Guenter Roeck0531d982012-03-02 11:46:44 -08001813
1814 /*
1815 * VIN7
1816 * Does not depend on bit 2 of Reg2C, contrary to datasheet.
1817 */
Guenter Roeck9172b5d2012-03-24 21:49:54 -07001818 if (reg27 & (1 << 2)) {
1819 /*
1820 * The data sheet is a bit unclear regarding the
1821 * internal voltage divider for VCCH5V. It says
1822 * "This bit enables and switches VIN7 (pin 91) to the
1823 * internal voltage divider for VCCH5V".
1824 * This is different to other chips, where the internal
1825 * voltage divider would connect VIN7 to an internal
1826 * voltage source. Maybe that is the case here as well.
1827 *
1828 * Since we don't know for sure, re-route it if that is
1829 * not the case, and ask the user to report if the
1830 * resulting voltage is sane.
1831 */
1832 if (!(reg2C & (1 << 1))) {
1833 reg2C |= (1 << 1);
1834 superio_outb(IT87_SIO_PINX2_REG, reg2C);
1835 pr_notice("Routing internal VCCH5V to in7.\n");
1836 }
1837 pr_notice("in7 routed to internal voltage divider, with external pin disabled.\n");
1838 pr_notice("Please report if it displays a reasonable voltage.\n");
1839 }
Guenter Roeck0531d982012-03-02 11:46:44 -08001840
1841 if (reg2C & (1 << 0))
1842 sio_data->internal |= (1 << 0);
1843 if (reg2C & (1 << 1))
1844 sio_data->internal |= (1 << 1);
1845
1846 sio_data->beep_pin = superio_inb(IT87_SIO_BEEP_PIN_REG) & 0x3f;
1847
Jean Delvare895ff262009-12-09 20:35:47 +01001848 } else {
Jean Delvare87673dd2006-08-28 14:37:19 +02001849 int reg;
Guenter Roeck9172b5d2012-03-24 21:49:54 -07001850 bool uart6;
Jean Delvare87673dd2006-08-28 14:37:19 +02001851
1852 superio_select(GPIO);
Jean Delvare44c1bcd2010-10-28 20:31:51 +02001853
Jean Delvare895ff262009-12-09 20:35:47 +01001854 reg = superio_inb(IT87_SIO_GPIO3_REG);
Guenter Roeck0531d982012-03-02 11:46:44 -08001855 if (sio_data->type == it8721 || sio_data->type == it8728 ||
Guenter Roeckb0636702012-09-07 17:34:41 -06001856 sio_data->type == it8771 || sio_data->type == it8772 ||
Guenter Roeck0531d982012-03-02 11:46:44 -08001857 sio_data->type == it8782) {
Jean Delvare16b5dda2012-01-16 22:51:48 +01001858 /*
Guenter Roeck0531d982012-03-02 11:46:44 -08001859 * IT8721F/IT8758E, and IT8782F don't have VID pins
Guenter Roeckb0636702012-09-07 17:34:41 -06001860 * at all, not sure about the IT8728F and compatibles.
Jean Delvare16b5dda2012-01-16 22:51:48 +01001861 */
Jean Delvare895ff262009-12-09 20:35:47 +01001862 sio_data->skip_vid = 1;
Jean Delvare44c1bcd2010-10-28 20:31:51 +02001863 } else {
1864 /* We need at least 4 VID pins */
1865 if (reg & 0x0f) {
Joe Perchesa8ca1032011-01-12 21:55:10 +01001866 pr_info("VID is disabled (pins used for GPIO)\n");
Jean Delvare44c1bcd2010-10-28 20:31:51 +02001867 sio_data->skip_vid = 1;
1868 }
Jean Delvare895ff262009-12-09 20:35:47 +01001869 }
1870
Jean Delvare591ec652009-12-09 20:35:48 +01001871 /* Check if fan3 is there or not */
1872 if (reg & (1 << 6))
1873 sio_data->skip_pwm |= (1 << 2);
1874 if (reg & (1 << 7))
1875 sio_data->skip_fan |= (1 << 2);
1876
1877 /* Check if fan2 is there or not */
1878 reg = superio_inb(IT87_SIO_GPIO5_REG);
1879 if (reg & (1 << 1))
1880 sio_data->skip_pwm |= (1 << 1);
1881 if (reg & (1 << 2))
1882 sio_data->skip_fan |= (1 << 1);
1883
Jean Delvare895ff262009-12-09 20:35:47 +01001884 if ((sio_data->type == it8718 || sio_data->type == it8720)
1885 && !(sio_data->skip_vid))
corentin.labbeb74f3fd2007-06-13 20:27:36 +02001886 sio_data->vid_value = superio_inb(IT87_SIO_VID_REG);
Jean Delvare87673dd2006-08-28 14:37:19 +02001887
1888 reg = superio_inb(IT87_SIO_PINX2_REG);
Guenter Roeck9172b5d2012-03-24 21:49:54 -07001889
1890 uart6 = sio_data->type == it8782 && (reg & (1 << 2));
1891
Jean Delvare436cad22010-07-09 16:22:48 +02001892 /*
1893 * The IT8720F has no VIN7 pin, so VCCH should always be
1894 * routed internally to VIN7 with an internal divider.
1895 * Curiously, there still is a configuration bit to control
1896 * this, which means it can be set incorrectly. And even
1897 * more curiously, many boards out there are improperly
1898 * configured, even though the IT8720F datasheet claims
1899 * that the internal routing of VCCH to VIN7 is the default
1900 * setting. So we force the internal routing in this case.
Guenter Roeck0531d982012-03-02 11:46:44 -08001901 *
1902 * On IT8782F, VIN7 is multiplexed with one of the UART6 pins.
Guenter Roeck9172b5d2012-03-24 21:49:54 -07001903 * If UART6 is enabled, re-route VIN7 to the internal divider
1904 * if that is not already the case.
Jean Delvare436cad22010-07-09 16:22:48 +02001905 */
Guenter Roeck9172b5d2012-03-24 21:49:54 -07001906 if ((sio_data->type == it8720 || uart6) && !(reg & (1 << 1))) {
Jean Delvare436cad22010-07-09 16:22:48 +02001907 reg |= (1 << 1);
1908 superio_outb(IT87_SIO_PINX2_REG, reg);
Joe Perchesa8ca1032011-01-12 21:55:10 +01001909 pr_notice("Routing internal VCCH to in7\n");
Jean Delvare436cad22010-07-09 16:22:48 +02001910 }
Jean Delvare87673dd2006-08-28 14:37:19 +02001911 if (reg & (1 << 0))
Jean Delvare738e5e02010-08-14 21:08:50 +02001912 sio_data->internal |= (1 << 0);
Jean Delvare16b5dda2012-01-16 22:51:48 +01001913 if ((reg & (1 << 1)) || sio_data->type == it8721 ||
Guenter Roeckb0636702012-09-07 17:34:41 -06001914 sio_data->type == it8728 ||
1915 sio_data->type == it8771 ||
1916 sio_data->type == it8772)
Jean Delvare738e5e02010-08-14 21:08:50 +02001917 sio_data->internal |= (1 << 1);
Jean Delvared9b327c2010-03-05 22:17:17 +01001918
Guenter Roeck9172b5d2012-03-24 21:49:54 -07001919 /*
1920 * On IT8782F, UART6 pins overlap with VIN5, VIN6, and VIN7.
1921 * While VIN7 can be routed to the internal voltage divider,
1922 * VIN5 and VIN6 are not available if UART6 is enabled.
Guenter Roeck4573acb2012-03-26 16:17:41 -07001923 *
1924 * Also, temp3 is not available if UART6 is enabled and TEMPIN3
1925 * is the temperature source. Since we can not read the
1926 * temperature source here, skip_temp is preliminary.
Guenter Roeck9172b5d2012-03-24 21:49:54 -07001927 */
Guenter Roeck4573acb2012-03-26 16:17:41 -07001928 if (uart6) {
Guenter Roeck9172b5d2012-03-24 21:49:54 -07001929 sio_data->skip_in |= (1 << 5) | (1 << 6);
Guenter Roeck4573acb2012-03-26 16:17:41 -07001930 sio_data->skip_temp |= (1 << 2);
1931 }
Guenter Roeck9172b5d2012-03-24 21:49:54 -07001932
Jean Delvared9b327c2010-03-05 22:17:17 +01001933 sio_data->beep_pin = superio_inb(IT87_SIO_BEEP_PIN_REG) & 0x3f;
Jean Delvare87673dd2006-08-28 14:37:19 +02001934 }
Jean Delvared9b327c2010-03-05 22:17:17 +01001935 if (sio_data->beep_pin)
Joe Perchesa8ca1032011-01-12 21:55:10 +01001936 pr_info("Beeping is supported\n");
Jean Delvare87673dd2006-08-28 14:37:19 +02001937
Jean Delvare98dd22c2008-10-09 15:33:58 +02001938 /* Disable specific features based on DMI strings */
1939 board_vendor = dmi_get_system_info(DMI_BOARD_VENDOR);
1940 board_name = dmi_get_system_info(DMI_BOARD_NAME);
1941 if (board_vendor && board_name) {
1942 if (strcmp(board_vendor, "nVIDIA") == 0
1943 && strcmp(board_name, "FN68PT") == 0) {
Guenter Roeck4a0d71c2012-01-19 11:02:18 -08001944 /*
1945 * On the Shuttle SN68PT, FAN_CTL2 is apparently not
1946 * connected to a fan, but to something else. One user
1947 * has reported instant system power-off when changing
1948 * the PWM2 duty cycle, so we disable it.
1949 * I use the board name string as the trigger in case
1950 * the same board is ever used in other systems.
1951 */
Joe Perchesa8ca1032011-01-12 21:55:10 +01001952 pr_info("Disabling pwm2 due to hardware constraints\n");
Jean Delvare98dd22c2008-10-09 15:33:58 +02001953 sio_data->skip_pwm = (1 << 1);
1954 }
1955 }
1956
Linus Torvalds1da177e2005-04-16 15:20:36 -07001957exit:
1958 superio_exit();
1959 return err;
1960}
1961
Jean Delvare723a0aa2010-03-05 22:17:16 +01001962static void it87_remove_files(struct device *dev)
1963{
1964 struct it87_data *data = platform_get_drvdata(pdev);
1965 struct it87_sio_data *sio_data = dev->platform_data;
Jean Delvare723a0aa2010-03-05 22:17:16 +01001966 int i;
1967
1968 sysfs_remove_group(&dev->kobj, &it87_group);
Guenter Roeck9172b5d2012-03-24 21:49:54 -07001969 for (i = 0; i < 9; i++) {
1970 if (sio_data->skip_in & (1 << i))
1971 continue;
1972 sysfs_remove_group(&dev->kobj, &it87_group_in[i]);
1973 if (it87_attributes_in_beep[i])
1974 sysfs_remove_file(&dev->kobj,
1975 it87_attributes_in_beep[i]);
1976 }
Guenter Roeck4573acb2012-03-26 16:17:41 -07001977 for (i = 0; i < 3; i++) {
1978 if (!(data->has_temp & (1 << i)))
1979 continue;
1980 sysfs_remove_group(&dev->kobj, &it87_group_temp[i]);
Guenter Roeck161d8982012-12-19 22:17:01 +01001981 if (has_temp_offset(data))
1982 sysfs_remove_file(&dev->kobj,
1983 it87_attributes_temp_offset[i]);
Guenter Roeck4573acb2012-03-26 16:17:41 -07001984 if (sio_data->beep_pin)
1985 sysfs_remove_file(&dev->kobj,
1986 it87_attributes_temp_beep[i]);
1987 }
Jean Delvare723a0aa2010-03-05 22:17:16 +01001988 for (i = 0; i < 5; i++) {
1989 if (!(data->has_fan & (1 << i)))
1990 continue;
Guenter Roecke1169ba2012-12-19 22:17:01 +01001991 sysfs_remove_group(&dev->kobj, &it87_group_fan[i]);
Jean Delvared9b327c2010-03-05 22:17:17 +01001992 if (sio_data->beep_pin)
1993 sysfs_remove_file(&dev->kobj,
1994 it87_attributes_fan_beep[i]);
Guenter Roecke1169ba2012-12-19 22:17:01 +01001995 if (i < 3 && !has_16bit_fans(data))
1996 sysfs_remove_file(&dev->kobj,
1997 it87_attributes_fan_div[i]);
Jean Delvare723a0aa2010-03-05 22:17:16 +01001998 }
1999 for (i = 0; i < 3; i++) {
2000 if (sio_data->skip_pwm & (1 << 0))
2001 continue;
2002 sysfs_remove_group(&dev->kobj, &it87_group_pwm[i]);
Jean Delvare4f3f51b2010-03-05 22:17:21 +01002003 if (has_old_autopwm(data))
2004 sysfs_remove_group(&dev->kobj,
2005 &it87_group_autopwm[i]);
Jean Delvare723a0aa2010-03-05 22:17:16 +01002006 }
Jean Delvare6a8d7ac2010-03-05 22:17:16 +01002007 if (!sio_data->skip_vid)
2008 sysfs_remove_group(&dev->kobj, &it87_group_vid);
Jean Delvare738e5e02010-08-14 21:08:50 +02002009 sysfs_remove_group(&dev->kobj, &it87_group_label);
Jean Delvare723a0aa2010-03-05 22:17:16 +01002010}
2011
Bill Pemberton6c931ae2012-11-19 13:22:35 -05002012static int it87_probe(struct platform_device *pdev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002013{
Linus Torvalds1da177e2005-04-16 15:20:36 -07002014 struct it87_data *data;
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002015 struct resource *res;
2016 struct device *dev = &pdev->dev;
2017 struct it87_sio_data *sio_data = dev->platform_data;
Jean Delvare723a0aa2010-03-05 22:17:16 +01002018 int err = 0, i;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002019 int enable_pwm_interface;
Jean Delvared9b327c2010-03-05 22:17:17 +01002020 int fan_beep_need_rw;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002021
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002022 res = platform_get_resource(pdev, IORESOURCE_IO, 0);
Guenter Roeck62a1d052012-03-24 21:54:41 -07002023 if (!devm_request_region(&pdev->dev, res->start, IT87_EC_EXTENT,
2024 DRVNAME)) {
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002025 dev_err(dev, "Failed to request region 0x%lx-0x%lx\n",
2026 (unsigned long)res->start,
Bjorn Helgaas87b4b662008-01-22 07:21:03 -05002027 (unsigned long)(res->start + IT87_EC_EXTENT - 1));
Guenter Roeck62a1d052012-03-24 21:54:41 -07002028 return -EBUSY;
Jean Delvare8e9afcb2006-12-12 18:18:28 +01002029 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07002030
Guenter Roeck62a1d052012-03-24 21:54:41 -07002031 data = devm_kzalloc(&pdev->dev, sizeof(struct it87_data), GFP_KERNEL);
2032 if (!data)
2033 return -ENOMEM;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002034
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002035 data->addr = res->start;
2036 data->type = sio_data->type;
Guenter Roeck483db432012-12-19 22:17:02 +01002037 data->features = it87_devices[sio_data->type].features;
Guenter Roeck5d8d2f22012-12-19 22:17:02 +01002038 data->peci_mask = it87_devices[sio_data->type].peci_mask;
Guenter Roeck19529782012-12-19 22:17:02 +01002039 data->old_peci_mask = it87_devices[sio_data->type].old_peci_mask;
Guenter Roeck483db432012-12-19 22:17:02 +01002040 data->name = it87_devices[sio_data->type].name;
2041 /*
2042 * IT8705F Datasheet 0.4.1, 3h == Version G.
2043 * IT8712F Datasheet 0.9.1, section 8.3.5 indicates 8h == Version J.
2044 * These are the first revisions with 16-bit tachometer support.
2045 */
2046 switch (data->type) {
2047 case it87:
2048 if (sio_data->revision >= 0x03) {
2049 data->features &= ~FEAT_OLD_AUTOPWM;
2050 data->features |= FEAT_16BIT_FANS;
2051 }
2052 break;
2053 case it8712:
2054 if (sio_data->revision >= 0x08) {
2055 data->features &= ~FEAT_OLD_AUTOPWM;
2056 data->features |= FEAT_16BIT_FANS;
2057 }
2058 break;
2059 default:
2060 break;
2061 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07002062
2063 /* Now, we do the remaining detection. */
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002064 if ((it87_read_value(data, IT87_REG_CONFIG) & 0x80)
Guenter Roeck62a1d052012-03-24 21:54:41 -07002065 || it87_read_value(data, IT87_REG_CHIPID) != 0x90)
2066 return -ENODEV;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002067
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002068 platform_set_drvdata(pdev, data);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002069
Ingo Molnar9a61bf62006-01-18 23:19:26 +01002070 mutex_init(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002071
Linus Torvalds1da177e2005-04-16 15:20:36 -07002072 /* Check PWM configuration */
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002073 enable_pwm_interface = it87_check_pwm(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002074
Jean Delvare44c1bcd2010-10-28 20:31:51 +02002075 /* Starting with IT8721F, we handle scaling of internal voltages */
Jean Delvare16b5dda2012-01-16 22:51:48 +01002076 if (has_12mv_adc(data)) {
Jean Delvare44c1bcd2010-10-28 20:31:51 +02002077 if (sio_data->internal & (1 << 0))
2078 data->in_scaled |= (1 << 3); /* in3 is AVCC */
2079 if (sio_data->internal & (1 << 1))
2080 data->in_scaled |= (1 << 7); /* in7 is VSB */
2081 if (sio_data->internal & (1 << 2))
2082 data->in_scaled |= (1 << 8); /* in8 is Vbat */
Guenter Roeck0531d982012-03-02 11:46:44 -08002083 } else if (sio_data->type == it8782 || sio_data->type == it8783) {
2084 if (sio_data->internal & (1 << 0))
2085 data->in_scaled |= (1 << 3); /* in3 is VCC5V */
2086 if (sio_data->internal & (1 << 1))
2087 data->in_scaled |= (1 << 7); /* in7 is VCCH5V */
Jean Delvare44c1bcd2010-10-28 20:31:51 +02002088 }
2089
Guenter Roeck4573acb2012-03-26 16:17:41 -07002090 data->has_temp = 0x07;
2091 if (sio_data->skip_temp & (1 << 2)) {
2092 if (sio_data->type == it8782
2093 && !(it87_read_value(data, IT87_REG_TEMP_EXTRA) & 0x80))
2094 data->has_temp &= ~(1 << 2);
2095 }
2096
Linus Torvalds1da177e2005-04-16 15:20:36 -07002097 /* Initialize the IT87 chip */
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002098 it87_init_device(pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002099
2100 /* Register sysfs hooks */
Jean Delvare5f2dc792010-03-05 22:17:18 +01002101 err = sysfs_create_group(&dev->kobj, &it87_group);
2102 if (err)
Guenter Roeck62a1d052012-03-24 21:54:41 -07002103 return err;
Jean Delvare17d648b2006-08-28 14:23:46 +02002104
Guenter Roeck9172b5d2012-03-24 21:49:54 -07002105 for (i = 0; i < 9; i++) {
2106 if (sio_data->skip_in & (1 << i))
2107 continue;
2108 err = sysfs_create_group(&dev->kobj, &it87_group_in[i]);
2109 if (err)
Guenter Roeck62a1d052012-03-24 21:54:41 -07002110 goto error;
Guenter Roeck9172b5d2012-03-24 21:49:54 -07002111 if (sio_data->beep_pin && it87_attributes_in_beep[i]) {
2112 err = sysfs_create_file(&dev->kobj,
2113 it87_attributes_in_beep[i]);
2114 if (err)
Guenter Roeck62a1d052012-03-24 21:54:41 -07002115 goto error;
Guenter Roeck9172b5d2012-03-24 21:49:54 -07002116 }
2117 }
2118
Guenter Roeck4573acb2012-03-26 16:17:41 -07002119 for (i = 0; i < 3; i++) {
2120 if (!(data->has_temp & (1 << i)))
2121 continue;
2122 err = sysfs_create_group(&dev->kobj, &it87_group_temp[i]);
Jean Delvared9b327c2010-03-05 22:17:17 +01002123 if (err)
Guenter Roeck62a1d052012-03-24 21:54:41 -07002124 goto error;
Guenter Roeck161d8982012-12-19 22:17:01 +01002125 if (has_temp_offset(data)) {
2126 err = sysfs_create_file(&dev->kobj,
2127 it87_attributes_temp_offset[i]);
2128 if (err)
2129 goto error;
2130 }
Guenter Roeck4573acb2012-03-26 16:17:41 -07002131 if (sio_data->beep_pin) {
2132 err = sysfs_create_file(&dev->kobj,
2133 it87_attributes_temp_beep[i]);
2134 if (err)
2135 goto error;
2136 }
Jean Delvared9b327c2010-03-05 22:17:17 +01002137 }
2138
Jean Delvare9060f8b2006-08-28 14:24:17 +02002139 /* Do not create fan files for disabled fans */
Jean Delvared9b327c2010-03-05 22:17:17 +01002140 fan_beep_need_rw = 1;
Jean Delvare723a0aa2010-03-05 22:17:16 +01002141 for (i = 0; i < 5; i++) {
2142 if (!(data->has_fan & (1 << i)))
2143 continue;
Guenter Roecke1169ba2012-12-19 22:17:01 +01002144 err = sysfs_create_group(&dev->kobj, &it87_group_fan[i]);
Jean Delvare723a0aa2010-03-05 22:17:16 +01002145 if (err)
Guenter Roeck62a1d052012-03-24 21:54:41 -07002146 goto error;
Jean Delvared9b327c2010-03-05 22:17:17 +01002147
Guenter Roecke1169ba2012-12-19 22:17:01 +01002148 if (i < 3 && !has_16bit_fans(data)) {
2149 err = sysfs_create_file(&dev->kobj,
2150 it87_attributes_fan_div[i]);
2151 if (err)
2152 goto error;
2153 }
2154
Jean Delvared9b327c2010-03-05 22:17:17 +01002155 if (sio_data->beep_pin) {
2156 err = sysfs_create_file(&dev->kobj,
2157 it87_attributes_fan_beep[i]);
2158 if (err)
Guenter Roeck62a1d052012-03-24 21:54:41 -07002159 goto error;
Jean Delvared9b327c2010-03-05 22:17:17 +01002160 if (!fan_beep_need_rw)
2161 continue;
2162
Guenter Roeck4a0d71c2012-01-19 11:02:18 -08002163 /*
2164 * As we have a single beep enable bit for all fans,
Jean Delvared9b327c2010-03-05 22:17:17 +01002165 * only the first enabled fan has a writable attribute
Guenter Roeck4a0d71c2012-01-19 11:02:18 -08002166 * for it.
2167 */
Jean Delvared9b327c2010-03-05 22:17:17 +01002168 if (sysfs_chmod_file(&dev->kobj,
2169 it87_attributes_fan_beep[i],
2170 S_IRUGO | S_IWUSR))
2171 dev_dbg(dev, "chmod +w fan%d_beep failed\n",
2172 i + 1);
2173 fan_beep_need_rw = 0;
2174 }
Jean Delvare17d648b2006-08-28 14:23:46 +02002175 }
2176
Linus Torvalds1da177e2005-04-16 15:20:36 -07002177 if (enable_pwm_interface) {
Jean Delvare723a0aa2010-03-05 22:17:16 +01002178 for (i = 0; i < 3; i++) {
2179 if (sio_data->skip_pwm & (1 << i))
2180 continue;
2181 err = sysfs_create_group(&dev->kobj,
2182 &it87_group_pwm[i]);
2183 if (err)
Guenter Roeck62a1d052012-03-24 21:54:41 -07002184 goto error;
Jean Delvare4f3f51b2010-03-05 22:17:21 +01002185
2186 if (!has_old_autopwm(data))
2187 continue;
2188 err = sysfs_create_group(&dev->kobj,
2189 &it87_group_autopwm[i]);
2190 if (err)
Guenter Roeck62a1d052012-03-24 21:54:41 -07002191 goto error;
Jean Delvare98dd22c2008-10-09 15:33:58 +02002192 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07002193 }
2194
Jean Delvare895ff262009-12-09 20:35:47 +01002195 if (!sio_data->skip_vid) {
Jean Delvare303760b2005-07-31 21:52:01 +02002196 data->vrm = vid_which_vrm();
Jean Delvare87673dd2006-08-28 14:37:19 +02002197 /* VID reading from Super-I/O config space if available */
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002198 data->vid = sio_data->vid_value;
Jean Delvare6a8d7ac2010-03-05 22:17:16 +01002199 err = sysfs_create_group(&dev->kobj, &it87_group_vid);
2200 if (err)
Guenter Roeck62a1d052012-03-24 21:54:41 -07002201 goto error;
Jean Delvare87808be2006-09-24 21:17:13 +02002202 }
2203
Jean Delvare738e5e02010-08-14 21:08:50 +02002204 /* Export labels for internal sensors */
2205 for (i = 0; i < 3; i++) {
2206 if (!(sio_data->internal & (1 << i)))
2207 continue;
2208 err = sysfs_create_file(&dev->kobj,
2209 it87_attributes_label[i]);
2210 if (err)
Guenter Roeck62a1d052012-03-24 21:54:41 -07002211 goto error;
Jean Delvare738e5e02010-08-14 21:08:50 +02002212 }
2213
Tony Jones1beeffe2007-08-20 13:46:20 -07002214 data->hwmon_dev = hwmon_device_register(dev);
2215 if (IS_ERR(data->hwmon_dev)) {
2216 err = PTR_ERR(data->hwmon_dev);
Guenter Roeck62a1d052012-03-24 21:54:41 -07002217 goto error;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002218 }
2219
2220 return 0;
2221
Guenter Roeck62a1d052012-03-24 21:54:41 -07002222error:
Jean Delvare723a0aa2010-03-05 22:17:16 +01002223 it87_remove_files(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002224 return err;
2225}
2226
Bill Pemberton281dfd02012-11-19 13:25:51 -05002227static int it87_remove(struct platform_device *pdev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002228{
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002229 struct it87_data *data = platform_get_drvdata(pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002230
Tony Jones1beeffe2007-08-20 13:46:20 -07002231 hwmon_device_unregister(data->hwmon_dev);
Jean Delvare723a0aa2010-03-05 22:17:16 +01002232 it87_remove_files(&pdev->dev);
Mark M. Hoffman943b0832005-07-15 21:39:18 -04002233
Linus Torvalds1da177e2005-04-16 15:20:36 -07002234 return 0;
2235}
2236
Guenter Roeck4a0d71c2012-01-19 11:02:18 -08002237/*
2238 * Must be called with data->update_lock held, except during initialization.
2239 * We ignore the IT87 BUSY flag at this moment - it could lead to deadlocks,
2240 * would slow down the IT87 access and should not be necessary.
2241 */
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002242static int it87_read_value(struct it87_data *data, u8 reg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002243{
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002244 outb_p(reg, data->addr + IT87_ADDR_REG_OFFSET);
2245 return inb_p(data->addr + IT87_DATA_REG_OFFSET);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002246}
2247
Guenter Roeck4a0d71c2012-01-19 11:02:18 -08002248/*
2249 * Must be called with data->update_lock held, except during initialization.
2250 * We ignore the IT87 BUSY flag at this moment - it could lead to deadlocks,
2251 * would slow down the IT87 access and should not be necessary.
2252 */
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002253static void it87_write_value(struct it87_data *data, u8 reg, u8 value)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002254{
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002255 outb_p(reg, data->addr + IT87_ADDR_REG_OFFSET);
2256 outb_p(value, data->addr + IT87_DATA_REG_OFFSET);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002257}
2258
2259/* Return 1 if and only if the PWM interface is safe to use */
Bill Pemberton6c931ae2012-11-19 13:22:35 -05002260static int it87_check_pwm(struct device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002261{
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002262 struct it87_data *data = dev_get_drvdata(dev);
Guenter Roeck4a0d71c2012-01-19 11:02:18 -08002263 /*
2264 * Some BIOSes fail to correctly configure the IT87 fans. All fans off
Linus Torvalds1da177e2005-04-16 15:20:36 -07002265 * and polarity set to active low is sign that this is the case so we
Guenter Roeck4a0d71c2012-01-19 11:02:18 -08002266 * disable pwm control to protect the user.
2267 */
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002268 int tmp = it87_read_value(data, IT87_REG_FAN_CTL);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002269 if ((tmp & 0x87) == 0) {
2270 if (fix_pwm_polarity) {
Guenter Roeck4a0d71c2012-01-19 11:02:18 -08002271 /*
2272 * The user asks us to attempt a chip reconfiguration.
Linus Torvalds1da177e2005-04-16 15:20:36 -07002273 * This means switching to active high polarity and
Guenter Roeck4a0d71c2012-01-19 11:02:18 -08002274 * inverting all fan speed values.
2275 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002276 int i;
2277 u8 pwm[3];
2278
2279 for (i = 0; i < 3; i++)
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002280 pwm[i] = it87_read_value(data,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002281 IT87_REG_PWM(i));
2282
Guenter Roeck4a0d71c2012-01-19 11:02:18 -08002283 /*
2284 * If any fan is in automatic pwm mode, the polarity
Linus Torvalds1da177e2005-04-16 15:20:36 -07002285 * might be correct, as suspicious as it seems, so we
2286 * better don't change anything (but still disable the
Guenter Roeck4a0d71c2012-01-19 11:02:18 -08002287 * PWM interface).
2288 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002289 if (!((pwm[0] | pwm[1] | pwm[2]) & 0x80)) {
Guenter Roeck1d9bcf62012-12-19 22:17:01 +01002290 dev_info(dev,
2291 "Reconfiguring PWM to active high polarity\n");
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002292 it87_write_value(data, IT87_REG_FAN_CTL,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002293 tmp | 0x87);
2294 for (i = 0; i < 3; i++)
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002295 it87_write_value(data,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002296 IT87_REG_PWM(i),
2297 0x7f & ~pwm[i]);
2298 return 1;
2299 }
2300
Guenter Roeck1d9bcf62012-12-19 22:17:01 +01002301 dev_info(dev,
2302 "PWM configuration is too broken to be fixed\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07002303 }
2304
Guenter Roeck1d9bcf62012-12-19 22:17:01 +01002305 dev_info(dev,
2306 "Detected broken BIOS defaults, disabling PWM interface\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07002307 return 0;
2308 } else if (fix_pwm_polarity) {
Guenter Roeck1d9bcf62012-12-19 22:17:01 +01002309 dev_info(dev,
2310 "PWM configuration looks sane, won't touch\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07002311 }
2312
2313 return 1;
2314}
2315
2316/* Called when we have found a new IT87. */
Bill Pemberton6c931ae2012-11-19 13:22:35 -05002317static void it87_init_device(struct platform_device *pdev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002318{
Jean Delvare591ec652009-12-09 20:35:48 +01002319 struct it87_sio_data *sio_data = pdev->dev.platform_data;
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002320 struct it87_data *data = platform_get_drvdata(pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002321 int tmp, i;
Jean Delvare591ec652009-12-09 20:35:48 +01002322 u8 mask;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002323
Guenter Roeck4a0d71c2012-01-19 11:02:18 -08002324 /*
2325 * For each PWM channel:
Jean Delvareb99883d2010-03-05 22:17:15 +01002326 * - If it is in automatic mode, setting to manual mode should set
2327 * the fan to full speed by default.
2328 * - If it is in manual mode, we need a mapping to temperature
2329 * channels to use when later setting to automatic mode later.
2330 * Use a 1:1 mapping by default (we are clueless.)
2331 * In both cases, the value can (and should) be changed by the user
Jean Delvare6229cdb2010-12-08 16:27:22 +01002332 * prior to switching to a different mode.
2333 * Note that this is no longer needed for the IT8721F and later, as
2334 * these have separate registers for the temperature mapping and the
Guenter Roeck4a0d71c2012-01-19 11:02:18 -08002335 * manual duty cycle.
2336 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002337 for (i = 0; i < 3; i++) {
Jean Delvareb99883d2010-03-05 22:17:15 +01002338 data->pwm_temp_map[i] = i;
2339 data->pwm_duty[i] = 0x7f; /* Full speed */
Jean Delvare4f3f51b2010-03-05 22:17:21 +01002340 data->auto_pwm[i][3] = 0x7f; /* Full speed, hard-coded */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002341 }
2342
Guenter Roeck4a0d71c2012-01-19 11:02:18 -08002343 /*
2344 * Some chips seem to have default value 0xff for all limit
Jean Delvarec5df9b72006-08-28 14:37:54 +02002345 * registers. For low voltage limits it makes no sense and triggers
2346 * alarms, so change to 0 instead. For high temperature limits, it
2347 * means -1 degree C, which surprisingly doesn't trigger an alarm,
Guenter Roeck4a0d71c2012-01-19 11:02:18 -08002348 * but is still confusing, so change to 127 degrees C.
2349 */
Jean Delvarec5df9b72006-08-28 14:37:54 +02002350 for (i = 0; i < 8; i++) {
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002351 tmp = it87_read_value(data, IT87_REG_VIN_MIN(i));
Jean Delvarec5df9b72006-08-28 14:37:54 +02002352 if (tmp == 0xff)
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002353 it87_write_value(data, IT87_REG_VIN_MIN(i), 0);
Jean Delvarec5df9b72006-08-28 14:37:54 +02002354 }
2355 for (i = 0; i < 3; i++) {
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002356 tmp = it87_read_value(data, IT87_REG_TEMP_HIGH(i));
Jean Delvarec5df9b72006-08-28 14:37:54 +02002357 if (tmp == 0xff)
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002358 it87_write_value(data, IT87_REG_TEMP_HIGH(i), 127);
Jean Delvarec5df9b72006-08-28 14:37:54 +02002359 }
2360
Guenter Roeck4a0d71c2012-01-19 11:02:18 -08002361 /*
2362 * Temperature channels are not forcibly enabled, as they can be
Jean Delvarea00afb92010-04-14 16:14:09 +02002363 * set to two different sensor types and we can't guess which one
2364 * is correct for a given system. These channels can be enabled at
Guenter Roeck4a0d71c2012-01-19 11:02:18 -08002365 * run-time through the temp{1-3}_type sysfs accessors if needed.
2366 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002367
2368 /* Check if voltage monitors are reset manually or by some reason */
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002369 tmp = it87_read_value(data, IT87_REG_VIN_ENABLE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002370 if ((tmp & 0xff) == 0) {
2371 /* Enable all voltage monitors */
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002372 it87_write_value(data, IT87_REG_VIN_ENABLE, 0xff);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002373 }
2374
2375 /* Check if tachometers are reset manually or by some reason */
Jean Delvare591ec652009-12-09 20:35:48 +01002376 mask = 0x70 & ~(sio_data->skip_fan << 4);
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002377 data->fan_main_ctrl = it87_read_value(data, IT87_REG_FAN_MAIN_CTRL);
Jean Delvare591ec652009-12-09 20:35:48 +01002378 if ((data->fan_main_ctrl & mask) == 0) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002379 /* Enable all fan tachometers */
Jean Delvare591ec652009-12-09 20:35:48 +01002380 data->fan_main_ctrl |= mask;
Jean Delvare5f2dc792010-03-05 22:17:18 +01002381 it87_write_value(data, IT87_REG_FAN_MAIN_CTRL,
2382 data->fan_main_ctrl);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002383 }
Jean Delvare9060f8b2006-08-28 14:24:17 +02002384 data->has_fan = (data->fan_main_ctrl >> 4) & 0x07;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002385
Jean Delvare17d648b2006-08-28 14:23:46 +02002386 /* Set tachometers to 16-bit mode if needed */
Andrew Paprocki04751692008-08-06 22:41:06 +02002387 if (has_16bit_fans(data)) {
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002388 tmp = it87_read_value(data, IT87_REG_FAN_16BIT);
Jean Delvare9060f8b2006-08-28 14:24:17 +02002389 if (~tmp & 0x07 & data->has_fan) {
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002390 dev_dbg(&pdev->dev,
Jean Delvare17d648b2006-08-28 14:23:46 +02002391 "Setting fan1-3 to 16-bit mode\n");
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002392 it87_write_value(data, IT87_REG_FAN_16BIT,
Jean Delvare17d648b2006-08-28 14:23:46 +02002393 tmp | 0x07);
2394 }
Guenter Roeck0531d982012-03-02 11:46:44 -08002395 /* IT8705F, IT8782F, and IT8783E/F only support three fans. */
2396 if (data->type != it87 && data->type != it8782 &&
2397 data->type != it8783) {
Andrew Paprocki816d8c62008-08-06 22:41:06 +02002398 if (tmp & (1 << 4))
2399 data->has_fan |= (1 << 3); /* fan4 enabled */
2400 if (tmp & (1 << 5))
2401 data->has_fan |= (1 << 4); /* fan5 enabled */
2402 }
Jean Delvare17d648b2006-08-28 14:23:46 +02002403 }
2404
Jean Delvare591ec652009-12-09 20:35:48 +01002405 /* Fan input pins may be used for alternative functions */
2406 data->has_fan &= ~sio_data->skip_fan;
2407
Linus Torvalds1da177e2005-04-16 15:20:36 -07002408 /* Start monitoring */
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002409 it87_write_value(data, IT87_REG_CONFIG,
Jean Delvare41002f82012-07-12 22:47:37 +02002410 (it87_read_value(data, IT87_REG_CONFIG) & 0x3e)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002411 | (update_vbat ? 0x41 : 0x01));
2412}
2413
Jean Delvareb99883d2010-03-05 22:17:15 +01002414static void it87_update_pwm_ctrl(struct it87_data *data, int nr)
2415{
2416 data->pwm_ctrl[nr] = it87_read_value(data, IT87_REG_PWM(nr));
Jean Delvare16b5dda2012-01-16 22:51:48 +01002417 if (has_newer_autopwm(data)) {
Jean Delvareb99883d2010-03-05 22:17:15 +01002418 data->pwm_temp_map[nr] = data->pwm_ctrl[nr] & 0x03;
Jean Delvare6229cdb2010-12-08 16:27:22 +01002419 data->pwm_duty[nr] = it87_read_value(data,
2420 IT87_REG_PWM_DUTY(nr));
2421 } else {
2422 if (data->pwm_ctrl[nr] & 0x80) /* Automatic mode */
2423 data->pwm_temp_map[nr] = data->pwm_ctrl[nr] & 0x03;
2424 else /* Manual mode */
2425 data->pwm_duty[nr] = data->pwm_ctrl[nr] & 0x7f;
2426 }
Jean Delvare4f3f51b2010-03-05 22:17:21 +01002427
2428 if (has_old_autopwm(data)) {
2429 int i;
2430
2431 for (i = 0; i < 5 ; i++)
2432 data->auto_temp[nr][i] = it87_read_value(data,
2433 IT87_REG_AUTO_TEMP(nr, i));
2434 for (i = 0; i < 3 ; i++)
2435 data->auto_pwm[nr][i] = it87_read_value(data,
2436 IT87_REG_AUTO_PWM(nr, i));
2437 }
Jean Delvareb99883d2010-03-05 22:17:15 +01002438}
2439
Linus Torvalds1da177e2005-04-16 15:20:36 -07002440static struct it87_data *it87_update_device(struct device *dev)
2441{
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002442 struct it87_data *data = dev_get_drvdata(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002443 int i;
2444
Ingo Molnar9a61bf62006-01-18 23:19:26 +01002445 mutex_lock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002446
2447 if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
2448 || !data->valid) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002449 if (update_vbat) {
Guenter Roeck4a0d71c2012-01-19 11:02:18 -08002450 /*
2451 * Cleared after each update, so reenable. Value
2452 * returned by this read will be previous value
2453 */
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002454 it87_write_value(data, IT87_REG_CONFIG,
Jean Delvare5f2dc792010-03-05 22:17:18 +01002455 it87_read_value(data, IT87_REG_CONFIG) | 0x40);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002456 }
2457 for (i = 0; i <= 7; i++) {
Guenter Roeck929c6a52012-12-19 22:17:00 +01002458 data->in[i][0] =
Jean Delvare5f2dc792010-03-05 22:17:18 +01002459 it87_read_value(data, IT87_REG_VIN(i));
Guenter Roeck929c6a52012-12-19 22:17:00 +01002460 data->in[i][1] =
Jean Delvare5f2dc792010-03-05 22:17:18 +01002461 it87_read_value(data, IT87_REG_VIN_MIN(i));
Guenter Roeck929c6a52012-12-19 22:17:00 +01002462 data->in[i][2] =
Jean Delvare5f2dc792010-03-05 22:17:18 +01002463 it87_read_value(data, IT87_REG_VIN_MAX(i));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002464 }
Jean Delvare3543a532006-08-28 14:27:25 +02002465 /* in8 (battery) has no limit registers */
Guenter Roeck929c6a52012-12-19 22:17:00 +01002466 data->in[8][0] = it87_read_value(data, IT87_REG_VIN(8));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002467
Jean Delvarec7f1f712007-09-03 17:11:46 +02002468 for (i = 0; i < 5; i++) {
Jean Delvare9060f8b2006-08-28 14:24:17 +02002469 /* Skip disabled fans */
2470 if (!(data->has_fan & (1 << i)))
2471 continue;
2472
Guenter Roecke1169ba2012-12-19 22:17:01 +01002473 data->fan[i][1] =
Jean Delvare5f2dc792010-03-05 22:17:18 +01002474 it87_read_value(data, IT87_REG_FAN_MIN[i]);
Guenter Roecke1169ba2012-12-19 22:17:01 +01002475 data->fan[i][0] = it87_read_value(data,
Jean Delvarec7f1f712007-09-03 17:11:46 +02002476 IT87_REG_FAN[i]);
Jean Delvare17d648b2006-08-28 14:23:46 +02002477 /* Add high byte if in 16-bit mode */
Andrew Paprocki04751692008-08-06 22:41:06 +02002478 if (has_16bit_fans(data)) {
Guenter Roecke1169ba2012-12-19 22:17:01 +01002479 data->fan[i][0] |= it87_read_value(data,
Jean Delvarec7f1f712007-09-03 17:11:46 +02002480 IT87_REG_FANX[i]) << 8;
Guenter Roecke1169ba2012-12-19 22:17:01 +01002481 data->fan[i][1] |= it87_read_value(data,
Jean Delvarec7f1f712007-09-03 17:11:46 +02002482 IT87_REG_FANX_MIN[i]) << 8;
Jean Delvare17d648b2006-08-28 14:23:46 +02002483 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07002484 }
2485 for (i = 0; i < 3; i++) {
Guenter Roeck4573acb2012-03-26 16:17:41 -07002486 if (!(data->has_temp & (1 << i)))
2487 continue;
Guenter Roeck60ca3852012-12-19 22:17:00 +01002488 data->temp[i][0] =
Jean Delvare5f2dc792010-03-05 22:17:18 +01002489 it87_read_value(data, IT87_REG_TEMP(i));
Guenter Roeck60ca3852012-12-19 22:17:00 +01002490 data->temp[i][1] =
Jean Delvare5f2dc792010-03-05 22:17:18 +01002491 it87_read_value(data, IT87_REG_TEMP_LOW(i));
Guenter Roeck60ca3852012-12-19 22:17:00 +01002492 data->temp[i][2] =
2493 it87_read_value(data, IT87_REG_TEMP_HIGH(i));
Guenter Roeck161d8982012-12-19 22:17:01 +01002494 if (has_temp_offset(data))
2495 data->temp[i][3] =
2496 it87_read_value(data,
2497 IT87_REG_TEMP_OFFSET[i]);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002498 }
2499
Jean Delvare17d648b2006-08-28 14:23:46 +02002500 /* Newer chips don't have clock dividers */
Andrew Paprocki04751692008-08-06 22:41:06 +02002501 if ((data->has_fan & 0x07) && !has_16bit_fans(data)) {
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002502 i = it87_read_value(data, IT87_REG_FAN_DIV);
Jean Delvare17d648b2006-08-28 14:23:46 +02002503 data->fan_div[0] = i & 0x07;
2504 data->fan_div[1] = (i >> 3) & 0x07;
2505 data->fan_div[2] = (i & 0x40) ? 3 : 1;
2506 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07002507
2508 data->alarms =
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002509 it87_read_value(data, IT87_REG_ALARM1) |
2510 (it87_read_value(data, IT87_REG_ALARM2) << 8) |
2511 (it87_read_value(data, IT87_REG_ALARM3) << 16);
Jean Delvared9b327c2010-03-05 22:17:17 +01002512 data->beeps = it87_read_value(data, IT87_REG_BEEP_ENABLE);
Jean Delvareb99883d2010-03-05 22:17:15 +01002513
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002514 data->fan_main_ctrl = it87_read_value(data,
2515 IT87_REG_FAN_MAIN_CTRL);
2516 data->fan_ctl = it87_read_value(data, IT87_REG_FAN_CTL);
Jean Delvareb99883d2010-03-05 22:17:15 +01002517 for (i = 0; i < 3; i++)
2518 it87_update_pwm_ctrl(data, i);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002519
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002520 data->sensor = it87_read_value(data, IT87_REG_TEMP_ENABLE);
Guenter Roeck19529782012-12-19 22:17:02 +01002521 data->extra = it87_read_value(data, IT87_REG_TEMP_EXTRA);
Guenter Roeck4a0d71c2012-01-19 11:02:18 -08002522 /*
2523 * The IT8705F does not have VID capability.
2524 * The IT8718F and later don't use IT87_REG_VID for the
2525 * same purpose.
2526 */
Jean Delvare17d648b2006-08-28 14:23:46 +02002527 if (data->type == it8712 || data->type == it8716) {
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002528 data->vid = it87_read_value(data, IT87_REG_VID);
Guenter Roeck4a0d71c2012-01-19 11:02:18 -08002529 /*
2530 * The older IT8712F revisions had only 5 VID pins,
2531 * but we assume it is always safe to read 6 bits.
2532 */
Jean Delvare17d648b2006-08-28 14:23:46 +02002533 data->vid &= 0x3f;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002534 }
2535 data->last_updated = jiffies;
2536 data->valid = 1;
2537 }
2538
Ingo Molnar9a61bf62006-01-18 23:19:26 +01002539 mutex_unlock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002540
2541 return data;
2542}
2543
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002544static int __init it87_device_add(unsigned short address,
2545 const struct it87_sio_data *sio_data)
2546{
2547 struct resource res = {
Bjorn Helgaas87b4b662008-01-22 07:21:03 -05002548 .start = address + IT87_EC_OFFSET,
2549 .end = address + IT87_EC_OFFSET + IT87_EC_EXTENT - 1,
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002550 .name = DRVNAME,
2551 .flags = IORESOURCE_IO,
2552 };
2553 int err;
2554
Jean Delvareb9acb642009-01-07 16:37:35 +01002555 err = acpi_check_resource_conflict(&res);
2556 if (err)
2557 goto exit;
2558
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002559 pdev = platform_device_alloc(DRVNAME, address);
2560 if (!pdev) {
2561 err = -ENOMEM;
Joe Perchesa8ca1032011-01-12 21:55:10 +01002562 pr_err("Device allocation failed\n");
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002563 goto exit;
2564 }
2565
2566 err = platform_device_add_resources(pdev, &res, 1);
2567 if (err) {
Joe Perchesa8ca1032011-01-12 21:55:10 +01002568 pr_err("Device resource addition failed (%d)\n", err);
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002569 goto exit_device_put;
2570 }
2571
2572 err = platform_device_add_data(pdev, sio_data,
2573 sizeof(struct it87_sio_data));
2574 if (err) {
Joe Perchesa8ca1032011-01-12 21:55:10 +01002575 pr_err("Platform data allocation failed\n");
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002576 goto exit_device_put;
2577 }
2578
2579 err = platform_device_add(pdev);
2580 if (err) {
Joe Perchesa8ca1032011-01-12 21:55:10 +01002581 pr_err("Device addition failed (%d)\n", err);
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002582 goto exit_device_put;
2583 }
2584
2585 return 0;
2586
2587exit_device_put:
2588 platform_device_put(pdev);
2589exit:
2590 return err;
2591}
2592
Linus Torvalds1da177e2005-04-16 15:20:36 -07002593static int __init sm_it87_init(void)
2594{
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002595 int err;
Jean Delvare5f2dc792010-03-05 22:17:18 +01002596 unsigned short isa_address = 0;
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002597 struct it87_sio_data sio_data;
Jean Delvarefde09502005-07-19 23:51:07 +02002598
Jean Delvare98dd22c2008-10-09 15:33:58 +02002599 memset(&sio_data, 0, sizeof(struct it87_sio_data));
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002600 err = it87_find(&isa_address, &sio_data);
2601 if (err)
2602 return err;
2603 err = platform_driver_register(&it87_driver);
2604 if (err)
2605 return err;
2606
2607 err = it87_device_add(isa_address, &sio_data);
Jean Delvare5f2dc792010-03-05 22:17:18 +01002608 if (err) {
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002609 platform_driver_unregister(&it87_driver);
2610 return err;
2611 }
2612
2613 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002614}
2615
2616static void __exit sm_it87_exit(void)
2617{
corentin.labbeb74f3fd2007-06-13 20:27:36 +02002618 platform_device_unregister(pdev);
2619 platform_driver_unregister(&it87_driver);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002620}
2621
2622
Guenter Roeck1d9bcf62012-12-19 22:17:01 +01002623MODULE_AUTHOR("Chris Gauthron, Jean Delvare <khali@linux-fr.org>");
Jean Delvare44c1bcd2010-10-28 20:31:51 +02002624MODULE_DESCRIPTION("IT8705F/IT871xF/IT872xF hardware monitoring driver");
Linus Torvalds1da177e2005-04-16 15:20:36 -07002625module_param(update_vbat, bool, 0);
2626MODULE_PARM_DESC(update_vbat, "Update vbat if set else return powerup value");
2627module_param(fix_pwm_polarity, bool, 0);
Jean Delvare5f2dc792010-03-05 22:17:18 +01002628MODULE_PARM_DESC(fix_pwm_polarity,
2629 "Force PWM polarity to active high (DANGEROUS)");
Linus Torvalds1da177e2005-04-16 15:20:36 -07002630MODULE_LICENSE("GPL");
2631
2632module_init(sm_it87_init);
2633module_exit(sm_it87_exit);