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b06367070d
Assume that IT8771E and IT8772E are fully compatible with IT8728F. IT8771E support contributed by Kelly Anderson. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Jean Delvare <khali@linux-fr.org>
2634 lines
78 KiB
C
2634 lines
78 KiB
C
/*
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* it87.c - Part of lm_sensors, Linux kernel modules for hardware
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* monitoring.
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*
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* The IT8705F is an LPC-based Super I/O part that contains UARTs, a
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* parallel port, an IR port, a MIDI port, a floppy controller, etc., in
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* addition to an Environment Controller (Enhanced Hardware Monitor and
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* Fan Controller)
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*
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* This driver supports only the Environment Controller in the IT8705F and
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* similar parts. The other devices are supported by different drivers.
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*
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* Supports: IT8705F Super I/O chip w/LPC interface
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* IT8712F Super I/O chip w/LPC interface
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* IT8716F Super I/O chip w/LPC interface
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* IT8718F Super I/O chip w/LPC interface
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* IT8720F Super I/O chip w/LPC interface
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* IT8721F Super I/O chip w/LPC interface
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* IT8726F Super I/O chip w/LPC interface
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* IT8728F Super I/O chip w/LPC interface
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* IT8758E Super I/O chip w/LPC interface
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* IT8771E Super I/O chip w/LPC interface
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* IT8772E Super I/O chip w/LPC interface
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* IT8782F Super I/O chip w/LPC interface
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* IT8783E/F Super I/O chip w/LPC interface
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* Sis950 A clone of the IT8705F
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*
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* Copyright (C) 2001 Chris Gauthron
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* Copyright (C) 2005-2010 Jean Delvare <khali@linux-fr.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/slab.h>
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#include <linux/jiffies.h>
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#include <linux/platform_device.h>
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#include <linux/hwmon.h>
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#include <linux/hwmon-sysfs.h>
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#include <linux/hwmon-vid.h>
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#include <linux/err.h>
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#include <linux/mutex.h>
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#include <linux/sysfs.h>
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#include <linux/string.h>
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#include <linux/dmi.h>
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#include <linux/acpi.h>
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#include <linux/io.h>
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#define DRVNAME "it87"
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enum chips { it87, it8712, it8716, it8718, it8720, it8721, it8728, it8771,
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it8772, it8782, it8783 };
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static unsigned short force_id;
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module_param(force_id, ushort, 0);
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MODULE_PARM_DESC(force_id, "Override the detected device ID");
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static struct platform_device *pdev;
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#define REG 0x2e /* The register to read/write */
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#define DEV 0x07 /* Register: Logical device select */
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#define VAL 0x2f /* The value to read/write */
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#define PME 0x04 /* The device with the fan registers in it */
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/* The device with the IT8718F/IT8720F VID value in it */
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#define GPIO 0x07
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#define DEVID 0x20 /* Register: Device ID */
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#define DEVREV 0x22 /* Register: Device Revision */
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static inline int superio_inb(int reg)
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{
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outb(reg, REG);
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return inb(VAL);
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}
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static inline void superio_outb(int reg, int val)
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{
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outb(reg, REG);
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outb(val, VAL);
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}
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static int superio_inw(int reg)
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{
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int val;
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outb(reg++, REG);
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val = inb(VAL) << 8;
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outb(reg, REG);
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val |= inb(VAL);
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return val;
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}
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static inline void superio_select(int ldn)
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{
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outb(DEV, REG);
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outb(ldn, VAL);
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}
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static inline int superio_enter(void)
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{
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/*
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* Try to reserve REG and REG + 1 for exclusive access.
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*/
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if (!request_muxed_region(REG, 2, DRVNAME))
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return -EBUSY;
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outb(0x87, REG);
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outb(0x01, REG);
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outb(0x55, REG);
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outb(0x55, REG);
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return 0;
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}
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static inline void superio_exit(void)
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{
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outb(0x02, REG);
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outb(0x02, VAL);
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release_region(REG, 2);
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}
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/* Logical device 4 registers */
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#define IT8712F_DEVID 0x8712
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#define IT8705F_DEVID 0x8705
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#define IT8716F_DEVID 0x8716
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#define IT8718F_DEVID 0x8718
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#define IT8720F_DEVID 0x8720
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#define IT8721F_DEVID 0x8721
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#define IT8726F_DEVID 0x8726
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#define IT8728F_DEVID 0x8728
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#define IT8771E_DEVID 0x8771
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#define IT8772E_DEVID 0x8772
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#define IT8782F_DEVID 0x8782
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#define IT8783E_DEVID 0x8783
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#define IT87_ACT_REG 0x30
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#define IT87_BASE_REG 0x60
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/* Logical device 7 registers (IT8712F and later) */
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#define IT87_SIO_GPIO1_REG 0x25
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#define IT87_SIO_GPIO3_REG 0x27
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#define IT87_SIO_GPIO5_REG 0x29
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#define IT87_SIO_PINX1_REG 0x2a /* Pin selection */
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#define IT87_SIO_PINX2_REG 0x2c /* Pin selection */
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#define IT87_SIO_SPI_REG 0xef /* SPI function pin select */
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#define IT87_SIO_VID_REG 0xfc /* VID value */
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#define IT87_SIO_BEEP_PIN_REG 0xf6 /* Beep pin mapping */
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/* Update battery voltage after every reading if true */
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static bool update_vbat;
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/* Not all BIOSes properly configure the PWM registers */
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static bool fix_pwm_polarity;
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/* Many IT87 constants specified below */
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/* Length of ISA address segment */
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#define IT87_EXTENT 8
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/* Length of ISA address segment for Environmental Controller */
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#define IT87_EC_EXTENT 2
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/* Offset of EC registers from ISA base address */
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#define IT87_EC_OFFSET 5
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/* Where are the ISA address/data registers relative to the EC base address */
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#define IT87_ADDR_REG_OFFSET 0
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#define IT87_DATA_REG_OFFSET 1
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/*----- The IT87 registers -----*/
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#define IT87_REG_CONFIG 0x00
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#define IT87_REG_ALARM1 0x01
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#define IT87_REG_ALARM2 0x02
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#define IT87_REG_ALARM3 0x03
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/*
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* The IT8718F and IT8720F have the VID value in a different register, in
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* Super-I/O configuration space.
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*/
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#define IT87_REG_VID 0x0a
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/*
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* The IT8705F and IT8712F earlier than revision 0x08 use register 0x0b
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* for fan divisors. Later IT8712F revisions must use 16-bit tachometer
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* mode.
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*/
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#define IT87_REG_FAN_DIV 0x0b
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#define IT87_REG_FAN_16BIT 0x0c
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/* Monitors: 9 voltage (0 to 7, battery), 3 temp (1 to 3), 3 fan (1 to 3) */
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static const u8 IT87_REG_FAN[] = { 0x0d, 0x0e, 0x0f, 0x80, 0x82 };
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static const u8 IT87_REG_FAN_MIN[] = { 0x10, 0x11, 0x12, 0x84, 0x86 };
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static const u8 IT87_REG_FANX[] = { 0x18, 0x19, 0x1a, 0x81, 0x83 };
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static const u8 IT87_REG_FANX_MIN[] = { 0x1b, 0x1c, 0x1d, 0x85, 0x87 };
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static const u8 IT87_REG_TEMP_OFFSET[] = { 0x56, 0x57, 0x59 };
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#define IT87_REG_FAN_MAIN_CTRL 0x13
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#define IT87_REG_FAN_CTL 0x14
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#define IT87_REG_PWM(nr) (0x15 + (nr))
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#define IT87_REG_PWM_DUTY(nr) (0x63 + (nr) * 8)
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#define IT87_REG_VIN(nr) (0x20 + (nr))
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#define IT87_REG_TEMP(nr) (0x29 + (nr))
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#define IT87_REG_VIN_MAX(nr) (0x30 + (nr) * 2)
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#define IT87_REG_VIN_MIN(nr) (0x31 + (nr) * 2)
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#define IT87_REG_TEMP_HIGH(nr) (0x40 + (nr) * 2)
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#define IT87_REG_TEMP_LOW(nr) (0x41 + (nr) * 2)
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#define IT87_REG_VIN_ENABLE 0x50
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#define IT87_REG_TEMP_ENABLE 0x51
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#define IT87_REG_TEMP_EXTRA 0x55
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#define IT87_REG_BEEP_ENABLE 0x5c
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#define IT87_REG_CHIPID 0x58
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#define IT87_REG_AUTO_TEMP(nr, i) (0x60 + (nr) * 8 + (i))
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#define IT87_REG_AUTO_PWM(nr, i) (0x65 + (nr) * 8 + (i))
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struct it87_devices {
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const char *name;
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u16 features;
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u8 peci_mask;
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u8 old_peci_mask;
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};
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#define FEAT_12MV_ADC (1 << 0)
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#define FEAT_NEWER_AUTOPWM (1 << 1)
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#define FEAT_OLD_AUTOPWM (1 << 2)
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#define FEAT_16BIT_FANS (1 << 3)
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#define FEAT_TEMP_OFFSET (1 << 4)
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#define FEAT_TEMP_PECI (1 << 5)
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#define FEAT_TEMP_OLD_PECI (1 << 6)
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static const struct it87_devices it87_devices[] = {
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[it87] = {
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.name = "it87",
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.features = FEAT_OLD_AUTOPWM, /* may need to overwrite */
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},
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[it8712] = {
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.name = "it8712",
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.features = FEAT_OLD_AUTOPWM, /* may need to overwrite */
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},
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[it8716] = {
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.name = "it8716",
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.features = FEAT_16BIT_FANS | FEAT_TEMP_OFFSET,
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},
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[it8718] = {
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.name = "it8718",
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.features = FEAT_16BIT_FANS | FEAT_TEMP_OFFSET
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| FEAT_TEMP_OLD_PECI,
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.old_peci_mask = 0x4,
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},
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[it8720] = {
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.name = "it8720",
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.features = FEAT_16BIT_FANS | FEAT_TEMP_OFFSET
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| FEAT_TEMP_OLD_PECI,
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.old_peci_mask = 0x4,
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},
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[it8721] = {
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.name = "it8721",
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.features = FEAT_NEWER_AUTOPWM | FEAT_12MV_ADC | FEAT_16BIT_FANS
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| FEAT_TEMP_OFFSET | FEAT_TEMP_OLD_PECI | FEAT_TEMP_PECI,
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.peci_mask = 0x05,
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.old_peci_mask = 0x02, /* Actually reports PCH */
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},
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[it8728] = {
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.name = "it8728",
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.features = FEAT_NEWER_AUTOPWM | FEAT_12MV_ADC | FEAT_16BIT_FANS
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| FEAT_TEMP_OFFSET | FEAT_TEMP_PECI,
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.peci_mask = 0x07,
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},
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[it8771] = {
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.name = "it8771",
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.features = FEAT_NEWER_AUTOPWM | FEAT_12MV_ADC | FEAT_16BIT_FANS
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| FEAT_TEMP_OFFSET | FEAT_TEMP_PECI,
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/* PECI: guesswork */
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/* 12mV ADC (OHM) */
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/* 16 bit fans (OHM) */
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.peci_mask = 0x07,
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},
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[it8772] = {
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.name = "it8772",
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.features = FEAT_NEWER_AUTOPWM | FEAT_12MV_ADC | FEAT_16BIT_FANS
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| FEAT_TEMP_OFFSET | FEAT_TEMP_PECI,
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/* PECI (coreboot) */
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/* 12mV ADC (HWSensors4, OHM) */
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/* 16 bit fans (HWSensors4, OHM) */
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.peci_mask = 0x07,
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},
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[it8782] = {
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.name = "it8782",
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.features = FEAT_16BIT_FANS | FEAT_TEMP_OFFSET
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| FEAT_TEMP_OLD_PECI,
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.old_peci_mask = 0x4,
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},
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[it8783] = {
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.name = "it8783",
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.features = FEAT_16BIT_FANS | FEAT_TEMP_OFFSET
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| FEAT_TEMP_OLD_PECI,
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.old_peci_mask = 0x4,
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},
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};
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#define has_16bit_fans(data) ((data)->features & FEAT_16BIT_FANS)
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#define has_12mv_adc(data) ((data)->features & FEAT_12MV_ADC)
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#define has_newer_autopwm(data) ((data)->features & FEAT_NEWER_AUTOPWM)
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#define has_old_autopwm(data) ((data)->features & FEAT_OLD_AUTOPWM)
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#define has_temp_offset(data) ((data)->features & FEAT_TEMP_OFFSET)
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#define has_temp_peci(data, nr) (((data)->features & FEAT_TEMP_PECI) && \
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((data)->peci_mask & (1 << nr)))
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#define has_temp_old_peci(data, nr) \
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(((data)->features & FEAT_TEMP_OLD_PECI) && \
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((data)->old_peci_mask & (1 << nr)))
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struct it87_sio_data {
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enum chips type;
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/* Values read from Super-I/O config space */
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u8 revision;
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u8 vid_value;
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u8 beep_pin;
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u8 internal; /* Internal sensors can be labeled */
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/* Features skipped based on config or DMI */
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u16 skip_in;
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u8 skip_vid;
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u8 skip_fan;
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u8 skip_pwm;
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u8 skip_temp;
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};
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/*
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* For each registered chip, we need to keep some data in memory.
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* The structure is dynamically allocated.
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*/
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struct it87_data {
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struct device *hwmon_dev;
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enum chips type;
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u16 features;
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u8 peci_mask;
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u8 old_peci_mask;
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unsigned short addr;
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const char *name;
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struct mutex update_lock;
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char valid; /* !=0 if following fields are valid */
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unsigned long last_updated; /* In jiffies */
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u16 in_scaled; /* Internal voltage sensors are scaled */
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u8 in[9][3]; /* [nr][0]=in, [1]=min, [2]=max */
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u8 has_fan; /* Bitfield, fans enabled */
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u16 fan[5][2]; /* Register values, [nr][0]=fan, [1]=min */
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u8 has_temp; /* Bitfield, temp sensors enabled */
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s8 temp[3][4]; /* [nr][0]=temp, [1]=min, [2]=max, [3]=offset */
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u8 sensor; /* Register value (IT87_REG_TEMP_ENABLE) */
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u8 extra; /* Register value (IT87_REG_TEMP_EXTRA) */
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u8 fan_div[3]; /* Register encoding, shifted right */
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u8 vid; /* Register encoding, combined */
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u8 vrm;
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u32 alarms; /* Register encoding, combined */
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u8 beeps; /* Register encoding */
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u8 fan_main_ctrl; /* Register value */
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u8 fan_ctl; /* Register value */
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/*
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* The following 3 arrays correspond to the same registers up to
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* the IT8720F. The meaning of bits 6-0 depends on the value of bit
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* 7, and we want to preserve settings on mode changes, so we have
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* to track all values separately.
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* Starting with the IT8721F, the manual PWM duty cycles are stored
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* in separate registers (8-bit values), so the separate tracking
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* is no longer needed, but it is still done to keep the driver
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* simple.
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*/
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u8 pwm_ctrl[3]; /* Register value */
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u8 pwm_duty[3]; /* Manual PWM value set by user */
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u8 pwm_temp_map[3]; /* PWM to temp. chan. mapping (bits 1-0) */
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/* Automatic fan speed control registers */
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u8 auto_pwm[3][4]; /* [nr][3] is hard-coded */
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s8 auto_temp[3][5]; /* [nr][0] is point1_temp_hyst */
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};
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static int adc_lsb(const struct it87_data *data, int nr)
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{
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int lsb = has_12mv_adc(data) ? 12 : 16;
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if (data->in_scaled & (1 << nr))
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lsb <<= 1;
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return lsb;
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}
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static u8 in_to_reg(const struct it87_data *data, int nr, long val)
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{
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val = DIV_ROUND_CLOSEST(val, adc_lsb(data, nr));
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return clamp_val(val, 0, 255);
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}
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static int in_from_reg(const struct it87_data *data, int nr, int val)
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{
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return val * adc_lsb(data, nr);
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}
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static inline u8 FAN_TO_REG(long rpm, int div)
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{
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if (rpm == 0)
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return 255;
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rpm = clamp_val(rpm, 1, 1000000);
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return clamp_val((1350000 + rpm * div / 2) / (rpm * div), 1, 254);
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}
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static inline u16 FAN16_TO_REG(long rpm)
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{
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if (rpm == 0)
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return 0xffff;
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return clamp_val((1350000 + rpm) / (rpm * 2), 1, 0xfffe);
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}
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#define FAN_FROM_REG(val, div) ((val) == 0 ? -1 : (val) == 255 ? 0 : \
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1350000 / ((val) * (div)))
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/* The divider is fixed to 2 in 16-bit mode */
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#define FAN16_FROM_REG(val) ((val) == 0 ? -1 : (val) == 0xffff ? 0 : \
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1350000 / ((val) * 2))
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#define TEMP_TO_REG(val) (clamp_val(((val) < 0 ? (((val) - 500) / 1000) : \
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((val) + 500) / 1000), -128, 127))
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#define TEMP_FROM_REG(val) ((val) * 1000)
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static u8 pwm_to_reg(const struct it87_data *data, long val)
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{
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if (has_newer_autopwm(data))
|
|
return val;
|
|
else
|
|
return val >> 1;
|
|
}
|
|
|
|
static int pwm_from_reg(const struct it87_data *data, u8 reg)
|
|
{
|
|
if (has_newer_autopwm(data))
|
|
return reg;
|
|
else
|
|
return (reg & 0x7f) << 1;
|
|
}
|
|
|
|
|
|
static int DIV_TO_REG(int val)
|
|
{
|
|
int answer = 0;
|
|
while (answer < 7 && (val >>= 1))
|
|
answer++;
|
|
return answer;
|
|
}
|
|
#define DIV_FROM_REG(val) (1 << (val))
|
|
|
|
static const unsigned int pwm_freq[8] = {
|
|
48000000 / 128,
|
|
24000000 / 128,
|
|
12000000 / 128,
|
|
8000000 / 128,
|
|
6000000 / 128,
|
|
3000000 / 128,
|
|
1500000 / 128,
|
|
750000 / 128,
|
|
};
|
|
|
|
static int it87_probe(struct platform_device *pdev);
|
|
static int it87_remove(struct platform_device *pdev);
|
|
|
|
static int it87_read_value(struct it87_data *data, u8 reg);
|
|
static void it87_write_value(struct it87_data *data, u8 reg, u8 value);
|
|
static struct it87_data *it87_update_device(struct device *dev);
|
|
static int it87_check_pwm(struct device *dev);
|
|
static void it87_init_device(struct platform_device *pdev);
|
|
|
|
|
|
static struct platform_driver it87_driver = {
|
|
.driver = {
|
|
.owner = THIS_MODULE,
|
|
.name = DRVNAME,
|
|
},
|
|
.probe = it87_probe,
|
|
.remove = it87_remove,
|
|
};
|
|
|
|
static ssize_t show_in(struct device *dev, struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
|
|
int nr = sattr->nr;
|
|
int index = sattr->index;
|
|
|
|
struct it87_data *data = it87_update_device(dev);
|
|
return sprintf(buf, "%d\n", in_from_reg(data, nr, data->in[nr][index]));
|
|
}
|
|
|
|
static ssize_t set_in(struct device *dev, struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
|
|
int nr = sattr->nr;
|
|
int index = sattr->index;
|
|
|
|
struct it87_data *data = dev_get_drvdata(dev);
|
|
unsigned long val;
|
|
|
|
if (kstrtoul(buf, 10, &val) < 0)
|
|
return -EINVAL;
|
|
|
|
mutex_lock(&data->update_lock);
|
|
data->in[nr][index] = in_to_reg(data, nr, val);
|
|
it87_write_value(data,
|
|
index == 1 ? IT87_REG_VIN_MIN(nr)
|
|
: IT87_REG_VIN_MAX(nr),
|
|
data->in[nr][index]);
|
|
mutex_unlock(&data->update_lock);
|
|
return count;
|
|
}
|
|
|
|
static SENSOR_DEVICE_ATTR_2(in0_input, S_IRUGO, show_in, NULL, 0, 0);
|
|
static SENSOR_DEVICE_ATTR_2(in0_min, S_IRUGO | S_IWUSR, show_in, set_in,
|
|
0, 1);
|
|
static SENSOR_DEVICE_ATTR_2(in0_max, S_IRUGO | S_IWUSR, show_in, set_in,
|
|
0, 2);
|
|
|
|
static SENSOR_DEVICE_ATTR_2(in1_input, S_IRUGO, show_in, NULL, 1, 0);
|
|
static SENSOR_DEVICE_ATTR_2(in1_min, S_IRUGO | S_IWUSR, show_in, set_in,
|
|
1, 1);
|
|
static SENSOR_DEVICE_ATTR_2(in1_max, S_IRUGO | S_IWUSR, show_in, set_in,
|
|
1, 2);
|
|
|
|
static SENSOR_DEVICE_ATTR_2(in2_input, S_IRUGO, show_in, NULL, 2, 0);
|
|
static SENSOR_DEVICE_ATTR_2(in2_min, S_IRUGO | S_IWUSR, show_in, set_in,
|
|
2, 1);
|
|
static SENSOR_DEVICE_ATTR_2(in2_max, S_IRUGO | S_IWUSR, show_in, set_in,
|
|
2, 2);
|
|
|
|
static SENSOR_DEVICE_ATTR_2(in3_input, S_IRUGO, show_in, NULL, 3, 0);
|
|
static SENSOR_DEVICE_ATTR_2(in3_min, S_IRUGO | S_IWUSR, show_in, set_in,
|
|
3, 1);
|
|
static SENSOR_DEVICE_ATTR_2(in3_max, S_IRUGO | S_IWUSR, show_in, set_in,
|
|
3, 2);
|
|
|
|
static SENSOR_DEVICE_ATTR_2(in4_input, S_IRUGO, show_in, NULL, 4, 0);
|
|
static SENSOR_DEVICE_ATTR_2(in4_min, S_IRUGO | S_IWUSR, show_in, set_in,
|
|
4, 1);
|
|
static SENSOR_DEVICE_ATTR_2(in4_max, S_IRUGO | S_IWUSR, show_in, set_in,
|
|
4, 2);
|
|
|
|
static SENSOR_DEVICE_ATTR_2(in5_input, S_IRUGO, show_in, NULL, 5, 0);
|
|
static SENSOR_DEVICE_ATTR_2(in5_min, S_IRUGO | S_IWUSR, show_in, set_in,
|
|
5, 1);
|
|
static SENSOR_DEVICE_ATTR_2(in5_max, S_IRUGO | S_IWUSR, show_in, set_in,
|
|
5, 2);
|
|
|
|
static SENSOR_DEVICE_ATTR_2(in6_input, S_IRUGO, show_in, NULL, 6, 0);
|
|
static SENSOR_DEVICE_ATTR_2(in6_min, S_IRUGO | S_IWUSR, show_in, set_in,
|
|
6, 1);
|
|
static SENSOR_DEVICE_ATTR_2(in6_max, S_IRUGO | S_IWUSR, show_in, set_in,
|
|
6, 2);
|
|
|
|
static SENSOR_DEVICE_ATTR_2(in7_input, S_IRUGO, show_in, NULL, 7, 0);
|
|
static SENSOR_DEVICE_ATTR_2(in7_min, S_IRUGO | S_IWUSR, show_in, set_in,
|
|
7, 1);
|
|
static SENSOR_DEVICE_ATTR_2(in7_max, S_IRUGO | S_IWUSR, show_in, set_in,
|
|
7, 2);
|
|
|
|
static SENSOR_DEVICE_ATTR_2(in8_input, S_IRUGO, show_in, NULL, 8, 0);
|
|
|
|
/* 3 temperatures */
|
|
static ssize_t show_temp(struct device *dev, struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
|
|
int nr = sattr->nr;
|
|
int index = sattr->index;
|
|
struct it87_data *data = it87_update_device(dev);
|
|
|
|
return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[nr][index]));
|
|
}
|
|
|
|
static ssize_t set_temp(struct device *dev, struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
|
|
int nr = sattr->nr;
|
|
int index = sattr->index;
|
|
struct it87_data *data = dev_get_drvdata(dev);
|
|
long val;
|
|
u8 reg, regval;
|
|
|
|
if (kstrtol(buf, 10, &val) < 0)
|
|
return -EINVAL;
|
|
|
|
mutex_lock(&data->update_lock);
|
|
|
|
switch (index) {
|
|
default:
|
|
case 1:
|
|
reg = IT87_REG_TEMP_LOW(nr);
|
|
break;
|
|
case 2:
|
|
reg = IT87_REG_TEMP_HIGH(nr);
|
|
break;
|
|
case 3:
|
|
regval = it87_read_value(data, IT87_REG_BEEP_ENABLE);
|
|
if (!(regval & 0x80)) {
|
|
regval |= 0x80;
|
|
it87_write_value(data, IT87_REG_BEEP_ENABLE, regval);
|
|
}
|
|
data->valid = 0;
|
|
reg = IT87_REG_TEMP_OFFSET[nr];
|
|
break;
|
|
}
|
|
|
|
data->temp[nr][index] = TEMP_TO_REG(val);
|
|
it87_write_value(data, reg, data->temp[nr][index]);
|
|
mutex_unlock(&data->update_lock);
|
|
return count;
|
|
}
|
|
|
|
static SENSOR_DEVICE_ATTR_2(temp1_input, S_IRUGO, show_temp, NULL, 0, 0);
|
|
static SENSOR_DEVICE_ATTR_2(temp1_min, S_IRUGO | S_IWUSR, show_temp, set_temp,
|
|
0, 1);
|
|
static SENSOR_DEVICE_ATTR_2(temp1_max, S_IRUGO | S_IWUSR, show_temp, set_temp,
|
|
0, 2);
|
|
static SENSOR_DEVICE_ATTR_2(temp1_offset, S_IRUGO | S_IWUSR, show_temp,
|
|
set_temp, 0, 3);
|
|
static SENSOR_DEVICE_ATTR_2(temp2_input, S_IRUGO, show_temp, NULL, 1, 0);
|
|
static SENSOR_DEVICE_ATTR_2(temp2_min, S_IRUGO | S_IWUSR, show_temp, set_temp,
|
|
1, 1);
|
|
static SENSOR_DEVICE_ATTR_2(temp2_max, S_IRUGO | S_IWUSR, show_temp, set_temp,
|
|
1, 2);
|
|
static SENSOR_DEVICE_ATTR_2(temp2_offset, S_IRUGO | S_IWUSR, show_temp,
|
|
set_temp, 1, 3);
|
|
static SENSOR_DEVICE_ATTR_2(temp3_input, S_IRUGO, show_temp, NULL, 2, 0);
|
|
static SENSOR_DEVICE_ATTR_2(temp3_min, S_IRUGO | S_IWUSR, show_temp, set_temp,
|
|
2, 1);
|
|
static SENSOR_DEVICE_ATTR_2(temp3_max, S_IRUGO | S_IWUSR, show_temp, set_temp,
|
|
2, 2);
|
|
static SENSOR_DEVICE_ATTR_2(temp3_offset, S_IRUGO | S_IWUSR, show_temp,
|
|
set_temp, 2, 3);
|
|
|
|
static ssize_t show_temp_type(struct device *dev, struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
|
|
int nr = sensor_attr->index;
|
|
struct it87_data *data = it87_update_device(dev);
|
|
u8 reg = data->sensor; /* In case value is updated while used */
|
|
u8 extra = data->extra;
|
|
|
|
if ((has_temp_peci(data, nr) && (reg >> 6 == nr + 1))
|
|
|| (has_temp_old_peci(data, nr) && (extra & 0x80)))
|
|
return sprintf(buf, "6\n"); /* Intel PECI */
|
|
if (reg & (1 << nr))
|
|
return sprintf(buf, "3\n"); /* thermal diode */
|
|
if (reg & (8 << nr))
|
|
return sprintf(buf, "4\n"); /* thermistor */
|
|
return sprintf(buf, "0\n"); /* disabled */
|
|
}
|
|
|
|
static ssize_t set_temp_type(struct device *dev, struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
|
|
int nr = sensor_attr->index;
|
|
|
|
struct it87_data *data = dev_get_drvdata(dev);
|
|
long val;
|
|
u8 reg, extra;
|
|
|
|
if (kstrtol(buf, 10, &val) < 0)
|
|
return -EINVAL;
|
|
|
|
reg = it87_read_value(data, IT87_REG_TEMP_ENABLE);
|
|
reg &= ~(1 << nr);
|
|
reg &= ~(8 << nr);
|
|
if (has_temp_peci(data, nr) && (reg >> 6 == nr + 1 || val == 6))
|
|
reg &= 0x3f;
|
|
extra = it87_read_value(data, IT87_REG_TEMP_EXTRA);
|
|
if (has_temp_old_peci(data, nr) && ((extra & 0x80) || val == 6))
|
|
extra &= 0x7f;
|
|
if (val == 2) { /* backwards compatibility */
|
|
dev_warn(dev,
|
|
"Sensor type 2 is deprecated, please use 4 instead\n");
|
|
val = 4;
|
|
}
|
|
/* 3 = thermal diode; 4 = thermistor; 6 = Intel PECI; 0 = disabled */
|
|
if (val == 3)
|
|
reg |= 1 << nr;
|
|
else if (val == 4)
|
|
reg |= 8 << nr;
|
|
else if (has_temp_peci(data, nr) && val == 6)
|
|
reg |= (nr + 1) << 6;
|
|
else if (has_temp_old_peci(data, nr) && val == 6)
|
|
extra |= 0x80;
|
|
else if (val != 0)
|
|
return -EINVAL;
|
|
|
|
mutex_lock(&data->update_lock);
|
|
data->sensor = reg;
|
|
data->extra = extra;
|
|
it87_write_value(data, IT87_REG_TEMP_ENABLE, data->sensor);
|
|
if (has_temp_old_peci(data, nr))
|
|
it87_write_value(data, IT87_REG_TEMP_EXTRA, data->extra);
|
|
data->valid = 0; /* Force cache refresh */
|
|
mutex_unlock(&data->update_lock);
|
|
return count;
|
|
}
|
|
|
|
static SENSOR_DEVICE_ATTR(temp1_type, S_IRUGO | S_IWUSR, show_temp_type,
|
|
set_temp_type, 0);
|
|
static SENSOR_DEVICE_ATTR(temp2_type, S_IRUGO | S_IWUSR, show_temp_type,
|
|
set_temp_type, 1);
|
|
static SENSOR_DEVICE_ATTR(temp3_type, S_IRUGO | S_IWUSR, show_temp_type,
|
|
set_temp_type, 2);
|
|
|
|
/* 3 Fans */
|
|
|
|
static int pwm_mode(const struct it87_data *data, int nr)
|
|
{
|
|
int ctrl = data->fan_main_ctrl & (1 << nr);
|
|
|
|
if (ctrl == 0) /* Full speed */
|
|
return 0;
|
|
if (data->pwm_ctrl[nr] & 0x80) /* Automatic mode */
|
|
return 2;
|
|
else /* Manual mode */
|
|
return 1;
|
|
}
|
|
|
|
static ssize_t show_fan(struct device *dev, struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
|
|
int nr = sattr->nr;
|
|
int index = sattr->index;
|
|
int speed;
|
|
struct it87_data *data = it87_update_device(dev);
|
|
|
|
speed = has_16bit_fans(data) ?
|
|
FAN16_FROM_REG(data->fan[nr][index]) :
|
|
FAN_FROM_REG(data->fan[nr][index],
|
|
DIV_FROM_REG(data->fan_div[nr]));
|
|
return sprintf(buf, "%d\n", speed);
|
|
}
|
|
|
|
static ssize_t show_fan_div(struct device *dev, struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
|
|
int nr = sensor_attr->index;
|
|
|
|
struct it87_data *data = it87_update_device(dev);
|
|
return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[nr]));
|
|
}
|
|
static ssize_t show_pwm_enable(struct device *dev,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
|
|
int nr = sensor_attr->index;
|
|
|
|
struct it87_data *data = it87_update_device(dev);
|
|
return sprintf(buf, "%d\n", pwm_mode(data, nr));
|
|
}
|
|
static ssize_t show_pwm(struct device *dev, struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
|
|
int nr = sensor_attr->index;
|
|
|
|
struct it87_data *data = it87_update_device(dev);
|
|
return sprintf(buf, "%d\n",
|
|
pwm_from_reg(data, data->pwm_duty[nr]));
|
|
}
|
|
static ssize_t show_pwm_freq(struct device *dev, struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct it87_data *data = it87_update_device(dev);
|
|
int index = (data->fan_ctl >> 4) & 0x07;
|
|
|
|
return sprintf(buf, "%u\n", pwm_freq[index]);
|
|
}
|
|
|
|
static ssize_t set_fan(struct device *dev, struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
|
|
int nr = sattr->nr;
|
|
int index = sattr->index;
|
|
|
|
struct it87_data *data = dev_get_drvdata(dev);
|
|
long val;
|
|
u8 reg;
|
|
|
|
if (kstrtol(buf, 10, &val) < 0)
|
|
return -EINVAL;
|
|
|
|
mutex_lock(&data->update_lock);
|
|
|
|
if (has_16bit_fans(data)) {
|
|
data->fan[nr][index] = FAN16_TO_REG(val);
|
|
it87_write_value(data, IT87_REG_FAN_MIN[nr],
|
|
data->fan[nr][index] & 0xff);
|
|
it87_write_value(data, IT87_REG_FANX_MIN[nr],
|
|
data->fan[nr][index] >> 8);
|
|
} else {
|
|
reg = it87_read_value(data, IT87_REG_FAN_DIV);
|
|
switch (nr) {
|
|
case 0:
|
|
data->fan_div[nr] = reg & 0x07;
|
|
break;
|
|
case 1:
|
|
data->fan_div[nr] = (reg >> 3) & 0x07;
|
|
break;
|
|
case 2:
|
|
data->fan_div[nr] = (reg & 0x40) ? 3 : 1;
|
|
break;
|
|
}
|
|
data->fan[nr][index] =
|
|
FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr]));
|
|
it87_write_value(data, IT87_REG_FAN_MIN[nr],
|
|
data->fan[nr][index]);
|
|
}
|
|
|
|
mutex_unlock(&data->update_lock);
|
|
return count;
|
|
}
|
|
|
|
static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
|
|
int nr = sensor_attr->index;
|
|
|
|
struct it87_data *data = dev_get_drvdata(dev);
|
|
unsigned long val;
|
|
int min;
|
|
u8 old;
|
|
|
|
if (kstrtoul(buf, 10, &val) < 0)
|
|
return -EINVAL;
|
|
|
|
mutex_lock(&data->update_lock);
|
|
old = it87_read_value(data, IT87_REG_FAN_DIV);
|
|
|
|
/* Save fan min limit */
|
|
min = FAN_FROM_REG(data->fan[nr][1], DIV_FROM_REG(data->fan_div[nr]));
|
|
|
|
switch (nr) {
|
|
case 0:
|
|
case 1:
|
|
data->fan_div[nr] = DIV_TO_REG(val);
|
|
break;
|
|
case 2:
|
|
if (val < 8)
|
|
data->fan_div[nr] = 1;
|
|
else
|
|
data->fan_div[nr] = 3;
|
|
}
|
|
val = old & 0x80;
|
|
val |= (data->fan_div[0] & 0x07);
|
|
val |= (data->fan_div[1] & 0x07) << 3;
|
|
if (data->fan_div[2] == 3)
|
|
val |= 0x1 << 6;
|
|
it87_write_value(data, IT87_REG_FAN_DIV, val);
|
|
|
|
/* Restore fan min limit */
|
|
data->fan[nr][1] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr]));
|
|
it87_write_value(data, IT87_REG_FAN_MIN[nr], data->fan[nr][1]);
|
|
|
|
mutex_unlock(&data->update_lock);
|
|
return count;
|
|
}
|
|
|
|
/* Returns 0 if OK, -EINVAL otherwise */
|
|
static int check_trip_points(struct device *dev, int nr)
|
|
{
|
|
const struct it87_data *data = dev_get_drvdata(dev);
|
|
int i, err = 0;
|
|
|
|
if (has_old_autopwm(data)) {
|
|
for (i = 0; i < 3; i++) {
|
|
if (data->auto_temp[nr][i] > data->auto_temp[nr][i + 1])
|
|
err = -EINVAL;
|
|
}
|
|
for (i = 0; i < 2; i++) {
|
|
if (data->auto_pwm[nr][i] > data->auto_pwm[nr][i + 1])
|
|
err = -EINVAL;
|
|
}
|
|
}
|
|
|
|
if (err) {
|
|
dev_err(dev,
|
|
"Inconsistent trip points, not switching to automatic mode\n");
|
|
dev_err(dev, "Adjust the trip points and try again\n");
|
|
}
|
|
return err;
|
|
}
|
|
|
|
static ssize_t set_pwm_enable(struct device *dev,
|
|
struct device_attribute *attr, const char *buf, size_t count)
|
|
{
|
|
struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
|
|
int nr = sensor_attr->index;
|
|
|
|
struct it87_data *data = dev_get_drvdata(dev);
|
|
long val;
|
|
|
|
if (kstrtol(buf, 10, &val) < 0 || val < 0 || val > 2)
|
|
return -EINVAL;
|
|
|
|
/* Check trip points before switching to automatic mode */
|
|
if (val == 2) {
|
|
if (check_trip_points(dev, nr) < 0)
|
|
return -EINVAL;
|
|
}
|
|
|
|
mutex_lock(&data->update_lock);
|
|
|
|
if (val == 0) {
|
|
int tmp;
|
|
/* make sure the fan is on when in on/off mode */
|
|
tmp = it87_read_value(data, IT87_REG_FAN_CTL);
|
|
it87_write_value(data, IT87_REG_FAN_CTL, tmp | (1 << nr));
|
|
/* set on/off mode */
|
|
data->fan_main_ctrl &= ~(1 << nr);
|
|
it87_write_value(data, IT87_REG_FAN_MAIN_CTRL,
|
|
data->fan_main_ctrl);
|
|
} else {
|
|
if (val == 1) /* Manual mode */
|
|
data->pwm_ctrl[nr] = has_newer_autopwm(data) ?
|
|
data->pwm_temp_map[nr] :
|
|
data->pwm_duty[nr];
|
|
else /* Automatic mode */
|
|
data->pwm_ctrl[nr] = 0x80 | data->pwm_temp_map[nr];
|
|
it87_write_value(data, IT87_REG_PWM(nr), data->pwm_ctrl[nr]);
|
|
/* set SmartGuardian mode */
|
|
data->fan_main_ctrl |= (1 << nr);
|
|
it87_write_value(data, IT87_REG_FAN_MAIN_CTRL,
|
|
data->fan_main_ctrl);
|
|
}
|
|
|
|
mutex_unlock(&data->update_lock);
|
|
return count;
|
|
}
|
|
static ssize_t set_pwm(struct device *dev, struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
|
|
int nr = sensor_attr->index;
|
|
|
|
struct it87_data *data = dev_get_drvdata(dev);
|
|
long val;
|
|
|
|
if (kstrtol(buf, 10, &val) < 0 || val < 0 || val > 255)
|
|
return -EINVAL;
|
|
|
|
mutex_lock(&data->update_lock);
|
|
if (has_newer_autopwm(data)) {
|
|
/*
|
|
* If we are in automatic mode, the PWM duty cycle register
|
|
* is read-only so we can't write the value.
|
|
*/
|
|
if (data->pwm_ctrl[nr] & 0x80) {
|
|
mutex_unlock(&data->update_lock);
|
|
return -EBUSY;
|
|
}
|
|
data->pwm_duty[nr] = pwm_to_reg(data, val);
|
|
it87_write_value(data, IT87_REG_PWM_DUTY(nr),
|
|
data->pwm_duty[nr]);
|
|
} else {
|
|
data->pwm_duty[nr] = pwm_to_reg(data, val);
|
|
/*
|
|
* If we are in manual mode, write the duty cycle immediately;
|
|
* otherwise, just store it for later use.
|
|
*/
|
|
if (!(data->pwm_ctrl[nr] & 0x80)) {
|
|
data->pwm_ctrl[nr] = data->pwm_duty[nr];
|
|
it87_write_value(data, IT87_REG_PWM(nr),
|
|
data->pwm_ctrl[nr]);
|
|
}
|
|
}
|
|
mutex_unlock(&data->update_lock);
|
|
return count;
|
|
}
|
|
static ssize_t set_pwm_freq(struct device *dev,
|
|
struct device_attribute *attr, const char *buf, size_t count)
|
|
{
|
|
struct it87_data *data = dev_get_drvdata(dev);
|
|
unsigned long val;
|
|
int i;
|
|
|
|
if (kstrtoul(buf, 10, &val) < 0)
|
|
return -EINVAL;
|
|
|
|
/* Search for the nearest available frequency */
|
|
for (i = 0; i < 7; i++) {
|
|
if (val > (pwm_freq[i] + pwm_freq[i+1]) / 2)
|
|
break;
|
|
}
|
|
|
|
mutex_lock(&data->update_lock);
|
|
data->fan_ctl = it87_read_value(data, IT87_REG_FAN_CTL) & 0x8f;
|
|
data->fan_ctl |= i << 4;
|
|
it87_write_value(data, IT87_REG_FAN_CTL, data->fan_ctl);
|
|
mutex_unlock(&data->update_lock);
|
|
|
|
return count;
|
|
}
|
|
static ssize_t show_pwm_temp_map(struct device *dev,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
|
|
int nr = sensor_attr->index;
|
|
|
|
struct it87_data *data = it87_update_device(dev);
|
|
int map;
|
|
|
|
if (data->pwm_temp_map[nr] < 3)
|
|
map = 1 << data->pwm_temp_map[nr];
|
|
else
|
|
map = 0; /* Should never happen */
|
|
return sprintf(buf, "%d\n", map);
|
|
}
|
|
static ssize_t set_pwm_temp_map(struct device *dev,
|
|
struct device_attribute *attr, const char *buf, size_t count)
|
|
{
|
|
struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
|
|
int nr = sensor_attr->index;
|
|
|
|
struct it87_data *data = dev_get_drvdata(dev);
|
|
long val;
|
|
u8 reg;
|
|
|
|
/*
|
|
* This check can go away if we ever support automatic fan speed
|
|
* control on newer chips.
|
|
*/
|
|
if (!has_old_autopwm(data)) {
|
|
dev_notice(dev, "Mapping change disabled for safety reasons\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (kstrtol(buf, 10, &val) < 0)
|
|
return -EINVAL;
|
|
|
|
switch (val) {
|
|
case (1 << 0):
|
|
reg = 0x00;
|
|
break;
|
|
case (1 << 1):
|
|
reg = 0x01;
|
|
break;
|
|
case (1 << 2):
|
|
reg = 0x02;
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
mutex_lock(&data->update_lock);
|
|
data->pwm_temp_map[nr] = reg;
|
|
/*
|
|
* If we are in automatic mode, write the temp mapping immediately;
|
|
* otherwise, just store it for later use.
|
|
*/
|
|
if (data->pwm_ctrl[nr] & 0x80) {
|
|
data->pwm_ctrl[nr] = 0x80 | data->pwm_temp_map[nr];
|
|
it87_write_value(data, IT87_REG_PWM(nr), data->pwm_ctrl[nr]);
|
|
}
|
|
mutex_unlock(&data->update_lock);
|
|
return count;
|
|
}
|
|
|
|
static ssize_t show_auto_pwm(struct device *dev,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
struct it87_data *data = it87_update_device(dev);
|
|
struct sensor_device_attribute_2 *sensor_attr =
|
|
to_sensor_dev_attr_2(attr);
|
|
int nr = sensor_attr->nr;
|
|
int point = sensor_attr->index;
|
|
|
|
return sprintf(buf, "%d\n",
|
|
pwm_from_reg(data, data->auto_pwm[nr][point]));
|
|
}
|
|
|
|
static ssize_t set_auto_pwm(struct device *dev,
|
|
struct device_attribute *attr, const char *buf, size_t count)
|
|
{
|
|
struct it87_data *data = dev_get_drvdata(dev);
|
|
struct sensor_device_attribute_2 *sensor_attr =
|
|
to_sensor_dev_attr_2(attr);
|
|
int nr = sensor_attr->nr;
|
|
int point = sensor_attr->index;
|
|
long val;
|
|
|
|
if (kstrtol(buf, 10, &val) < 0 || val < 0 || val > 255)
|
|
return -EINVAL;
|
|
|
|
mutex_lock(&data->update_lock);
|
|
data->auto_pwm[nr][point] = pwm_to_reg(data, val);
|
|
it87_write_value(data, IT87_REG_AUTO_PWM(nr, point),
|
|
data->auto_pwm[nr][point]);
|
|
mutex_unlock(&data->update_lock);
|
|
return count;
|
|
}
|
|
|
|
static ssize_t show_auto_temp(struct device *dev,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
struct it87_data *data = it87_update_device(dev);
|
|
struct sensor_device_attribute_2 *sensor_attr =
|
|
to_sensor_dev_attr_2(attr);
|
|
int nr = sensor_attr->nr;
|
|
int point = sensor_attr->index;
|
|
|
|
return sprintf(buf, "%d\n", TEMP_FROM_REG(data->auto_temp[nr][point]));
|
|
}
|
|
|
|
static ssize_t set_auto_temp(struct device *dev,
|
|
struct device_attribute *attr, const char *buf, size_t count)
|
|
{
|
|
struct it87_data *data = dev_get_drvdata(dev);
|
|
struct sensor_device_attribute_2 *sensor_attr =
|
|
to_sensor_dev_attr_2(attr);
|
|
int nr = sensor_attr->nr;
|
|
int point = sensor_attr->index;
|
|
long val;
|
|
|
|
if (kstrtol(buf, 10, &val) < 0 || val < -128000 || val > 127000)
|
|
return -EINVAL;
|
|
|
|
mutex_lock(&data->update_lock);
|
|
data->auto_temp[nr][point] = TEMP_TO_REG(val);
|
|
it87_write_value(data, IT87_REG_AUTO_TEMP(nr, point),
|
|
data->auto_temp[nr][point]);
|
|
mutex_unlock(&data->update_lock);
|
|
return count;
|
|
}
|
|
|
|
static SENSOR_DEVICE_ATTR_2(fan1_input, S_IRUGO, show_fan, NULL, 0, 0);
|
|
static SENSOR_DEVICE_ATTR_2(fan1_min, S_IRUGO | S_IWUSR, show_fan, set_fan,
|
|
0, 1);
|
|
static SENSOR_DEVICE_ATTR(fan1_div, S_IRUGO | S_IWUSR, show_fan_div,
|
|
set_fan_div, 0);
|
|
|
|
static SENSOR_DEVICE_ATTR_2(fan2_input, S_IRUGO, show_fan, NULL, 1, 0);
|
|
static SENSOR_DEVICE_ATTR_2(fan2_min, S_IRUGO | S_IWUSR, show_fan, set_fan,
|
|
1, 1);
|
|
static SENSOR_DEVICE_ATTR(fan2_div, S_IRUGO | S_IWUSR, show_fan_div,
|
|
set_fan_div, 1);
|
|
|
|
static SENSOR_DEVICE_ATTR_2(fan3_input, S_IRUGO, show_fan, NULL, 2, 0);
|
|
static SENSOR_DEVICE_ATTR_2(fan3_min, S_IRUGO | S_IWUSR, show_fan, set_fan,
|
|
2, 1);
|
|
static SENSOR_DEVICE_ATTR(fan3_div, S_IRUGO | S_IWUSR, show_fan_div,
|
|
set_fan_div, 2);
|
|
|
|
static SENSOR_DEVICE_ATTR_2(fan4_input, S_IRUGO, show_fan, NULL, 3, 0);
|
|
static SENSOR_DEVICE_ATTR_2(fan4_min, S_IRUGO | S_IWUSR, show_fan, set_fan,
|
|
3, 1);
|
|
|
|
static SENSOR_DEVICE_ATTR_2(fan5_input, S_IRUGO, show_fan, NULL, 4, 0);
|
|
static SENSOR_DEVICE_ATTR_2(fan5_min, S_IRUGO | S_IWUSR, show_fan, set_fan,
|
|
4, 1);
|
|
|
|
static SENSOR_DEVICE_ATTR(pwm1_enable, S_IRUGO | S_IWUSR,
|
|
show_pwm_enable, set_pwm_enable, 0);
|
|
static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, show_pwm, set_pwm, 0);
|
|
static DEVICE_ATTR(pwm1_freq, S_IRUGO | S_IWUSR, show_pwm_freq, set_pwm_freq);
|
|
static SENSOR_DEVICE_ATTR(pwm1_auto_channels_temp, S_IRUGO | S_IWUSR,
|
|
show_pwm_temp_map, set_pwm_temp_map, 0);
|
|
static SENSOR_DEVICE_ATTR_2(pwm1_auto_point1_pwm, S_IRUGO | S_IWUSR,
|
|
show_auto_pwm, set_auto_pwm, 0, 0);
|
|
static SENSOR_DEVICE_ATTR_2(pwm1_auto_point2_pwm, S_IRUGO | S_IWUSR,
|
|
show_auto_pwm, set_auto_pwm, 0, 1);
|
|
static SENSOR_DEVICE_ATTR_2(pwm1_auto_point3_pwm, S_IRUGO | S_IWUSR,
|
|
show_auto_pwm, set_auto_pwm, 0, 2);
|
|
static SENSOR_DEVICE_ATTR_2(pwm1_auto_point4_pwm, S_IRUGO,
|
|
show_auto_pwm, NULL, 0, 3);
|
|
static SENSOR_DEVICE_ATTR_2(pwm1_auto_point1_temp, S_IRUGO | S_IWUSR,
|
|
show_auto_temp, set_auto_temp, 0, 1);
|
|
static SENSOR_DEVICE_ATTR_2(pwm1_auto_point1_temp_hyst, S_IRUGO | S_IWUSR,
|
|
show_auto_temp, set_auto_temp, 0, 0);
|
|
static SENSOR_DEVICE_ATTR_2(pwm1_auto_point2_temp, S_IRUGO | S_IWUSR,
|
|
show_auto_temp, set_auto_temp, 0, 2);
|
|
static SENSOR_DEVICE_ATTR_2(pwm1_auto_point3_temp, S_IRUGO | S_IWUSR,
|
|
show_auto_temp, set_auto_temp, 0, 3);
|
|
static SENSOR_DEVICE_ATTR_2(pwm1_auto_point4_temp, S_IRUGO | S_IWUSR,
|
|
show_auto_temp, set_auto_temp, 0, 4);
|
|
|
|
static SENSOR_DEVICE_ATTR(pwm2_enable, S_IRUGO | S_IWUSR,
|
|
show_pwm_enable, set_pwm_enable, 1);
|
|
static SENSOR_DEVICE_ATTR(pwm2, S_IRUGO | S_IWUSR, show_pwm, set_pwm, 1);
|
|
static DEVICE_ATTR(pwm2_freq, S_IRUGO, show_pwm_freq, NULL);
|
|
static SENSOR_DEVICE_ATTR(pwm2_auto_channels_temp, S_IRUGO | S_IWUSR,
|
|
show_pwm_temp_map, set_pwm_temp_map, 1);
|
|
static SENSOR_DEVICE_ATTR_2(pwm2_auto_point1_pwm, S_IRUGO | S_IWUSR,
|
|
show_auto_pwm, set_auto_pwm, 1, 0);
|
|
static SENSOR_DEVICE_ATTR_2(pwm2_auto_point2_pwm, S_IRUGO | S_IWUSR,
|
|
show_auto_pwm, set_auto_pwm, 1, 1);
|
|
static SENSOR_DEVICE_ATTR_2(pwm2_auto_point3_pwm, S_IRUGO | S_IWUSR,
|
|
show_auto_pwm, set_auto_pwm, 1, 2);
|
|
static SENSOR_DEVICE_ATTR_2(pwm2_auto_point4_pwm, S_IRUGO,
|
|
show_auto_pwm, NULL, 1, 3);
|
|
static SENSOR_DEVICE_ATTR_2(pwm2_auto_point1_temp, S_IRUGO | S_IWUSR,
|
|
show_auto_temp, set_auto_temp, 1, 1);
|
|
static SENSOR_DEVICE_ATTR_2(pwm2_auto_point1_temp_hyst, S_IRUGO | S_IWUSR,
|
|
show_auto_temp, set_auto_temp, 1, 0);
|
|
static SENSOR_DEVICE_ATTR_2(pwm2_auto_point2_temp, S_IRUGO | S_IWUSR,
|
|
show_auto_temp, set_auto_temp, 1, 2);
|
|
static SENSOR_DEVICE_ATTR_2(pwm2_auto_point3_temp, S_IRUGO | S_IWUSR,
|
|
show_auto_temp, set_auto_temp, 1, 3);
|
|
static SENSOR_DEVICE_ATTR_2(pwm2_auto_point4_temp, S_IRUGO | S_IWUSR,
|
|
show_auto_temp, set_auto_temp, 1, 4);
|
|
|
|
static SENSOR_DEVICE_ATTR(pwm3_enable, S_IRUGO | S_IWUSR,
|
|
show_pwm_enable, set_pwm_enable, 2);
|
|
static SENSOR_DEVICE_ATTR(pwm3, S_IRUGO | S_IWUSR, show_pwm, set_pwm, 2);
|
|
static DEVICE_ATTR(pwm3_freq, S_IRUGO, show_pwm_freq, NULL);
|
|
static SENSOR_DEVICE_ATTR(pwm3_auto_channels_temp, S_IRUGO | S_IWUSR,
|
|
show_pwm_temp_map, set_pwm_temp_map, 2);
|
|
static SENSOR_DEVICE_ATTR_2(pwm3_auto_point1_pwm, S_IRUGO | S_IWUSR,
|
|
show_auto_pwm, set_auto_pwm, 2, 0);
|
|
static SENSOR_DEVICE_ATTR_2(pwm3_auto_point2_pwm, S_IRUGO | S_IWUSR,
|
|
show_auto_pwm, set_auto_pwm, 2, 1);
|
|
static SENSOR_DEVICE_ATTR_2(pwm3_auto_point3_pwm, S_IRUGO | S_IWUSR,
|
|
show_auto_pwm, set_auto_pwm, 2, 2);
|
|
static SENSOR_DEVICE_ATTR_2(pwm3_auto_point4_pwm, S_IRUGO,
|
|
show_auto_pwm, NULL, 2, 3);
|
|
static SENSOR_DEVICE_ATTR_2(pwm3_auto_point1_temp, S_IRUGO | S_IWUSR,
|
|
show_auto_temp, set_auto_temp, 2, 1);
|
|
static SENSOR_DEVICE_ATTR_2(pwm3_auto_point1_temp_hyst, S_IRUGO | S_IWUSR,
|
|
show_auto_temp, set_auto_temp, 2, 0);
|
|
static SENSOR_DEVICE_ATTR_2(pwm3_auto_point2_temp, S_IRUGO | S_IWUSR,
|
|
show_auto_temp, set_auto_temp, 2, 2);
|
|
static SENSOR_DEVICE_ATTR_2(pwm3_auto_point3_temp, S_IRUGO | S_IWUSR,
|
|
show_auto_temp, set_auto_temp, 2, 3);
|
|
static SENSOR_DEVICE_ATTR_2(pwm3_auto_point4_temp, S_IRUGO | S_IWUSR,
|
|
show_auto_temp, set_auto_temp, 2, 4);
|
|
|
|
/* Alarms */
|
|
static ssize_t show_alarms(struct device *dev, struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct it87_data *data = it87_update_device(dev);
|
|
return sprintf(buf, "%u\n", data->alarms);
|
|
}
|
|
static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
|
|
|
|
static ssize_t show_alarm(struct device *dev, struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
int bitnr = to_sensor_dev_attr(attr)->index;
|
|
struct it87_data *data = it87_update_device(dev);
|
|
return sprintf(buf, "%u\n", (data->alarms >> bitnr) & 1);
|
|
}
|
|
|
|
static ssize_t clear_intrusion(struct device *dev, struct device_attribute
|
|
*attr, const char *buf, size_t count)
|
|
{
|
|
struct it87_data *data = dev_get_drvdata(dev);
|
|
long val;
|
|
int config;
|
|
|
|
if (kstrtol(buf, 10, &val) < 0 || val != 0)
|
|
return -EINVAL;
|
|
|
|
mutex_lock(&data->update_lock);
|
|
config = it87_read_value(data, IT87_REG_CONFIG);
|
|
if (config < 0) {
|
|
count = config;
|
|
} else {
|
|
config |= 1 << 5;
|
|
it87_write_value(data, IT87_REG_CONFIG, config);
|
|
/* Invalidate cache to force re-read */
|
|
data->valid = 0;
|
|
}
|
|
mutex_unlock(&data->update_lock);
|
|
|
|
return count;
|
|
}
|
|
|
|
static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 8);
|
|
static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 9);
|
|
static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 10);
|
|
static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 11);
|
|
static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 12);
|
|
static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 13);
|
|
static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 14);
|
|
static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 15);
|
|
static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 0);
|
|
static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 1);
|
|
static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 2);
|
|
static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 3);
|
|
static SENSOR_DEVICE_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 6);
|
|
static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 16);
|
|
static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 17);
|
|
static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 18);
|
|
static SENSOR_DEVICE_ATTR(intrusion0_alarm, S_IRUGO | S_IWUSR,
|
|
show_alarm, clear_intrusion, 4);
|
|
|
|
static ssize_t show_beep(struct device *dev, struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
int bitnr = to_sensor_dev_attr(attr)->index;
|
|
struct it87_data *data = it87_update_device(dev);
|
|
return sprintf(buf, "%u\n", (data->beeps >> bitnr) & 1);
|
|
}
|
|
static ssize_t set_beep(struct device *dev, struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
int bitnr = to_sensor_dev_attr(attr)->index;
|
|
struct it87_data *data = dev_get_drvdata(dev);
|
|
long val;
|
|
|
|
if (kstrtol(buf, 10, &val) < 0
|
|
|| (val != 0 && val != 1))
|
|
return -EINVAL;
|
|
|
|
mutex_lock(&data->update_lock);
|
|
data->beeps = it87_read_value(data, IT87_REG_BEEP_ENABLE);
|
|
if (val)
|
|
data->beeps |= (1 << bitnr);
|
|
else
|
|
data->beeps &= ~(1 << bitnr);
|
|
it87_write_value(data, IT87_REG_BEEP_ENABLE, data->beeps);
|
|
mutex_unlock(&data->update_lock);
|
|
return count;
|
|
}
|
|
|
|
static SENSOR_DEVICE_ATTR(in0_beep, S_IRUGO | S_IWUSR,
|
|
show_beep, set_beep, 1);
|
|
static SENSOR_DEVICE_ATTR(in1_beep, S_IRUGO, show_beep, NULL, 1);
|
|
static SENSOR_DEVICE_ATTR(in2_beep, S_IRUGO, show_beep, NULL, 1);
|
|
static SENSOR_DEVICE_ATTR(in3_beep, S_IRUGO, show_beep, NULL, 1);
|
|
static SENSOR_DEVICE_ATTR(in4_beep, S_IRUGO, show_beep, NULL, 1);
|
|
static SENSOR_DEVICE_ATTR(in5_beep, S_IRUGO, show_beep, NULL, 1);
|
|
static SENSOR_DEVICE_ATTR(in6_beep, S_IRUGO, show_beep, NULL, 1);
|
|
static SENSOR_DEVICE_ATTR(in7_beep, S_IRUGO, show_beep, NULL, 1);
|
|
/* fanX_beep writability is set later */
|
|
static SENSOR_DEVICE_ATTR(fan1_beep, S_IRUGO, show_beep, set_beep, 0);
|
|
static SENSOR_DEVICE_ATTR(fan2_beep, S_IRUGO, show_beep, set_beep, 0);
|
|
static SENSOR_DEVICE_ATTR(fan3_beep, S_IRUGO, show_beep, set_beep, 0);
|
|
static SENSOR_DEVICE_ATTR(fan4_beep, S_IRUGO, show_beep, set_beep, 0);
|
|
static SENSOR_DEVICE_ATTR(fan5_beep, S_IRUGO, show_beep, set_beep, 0);
|
|
static SENSOR_DEVICE_ATTR(temp1_beep, S_IRUGO | S_IWUSR,
|
|
show_beep, set_beep, 2);
|
|
static SENSOR_DEVICE_ATTR(temp2_beep, S_IRUGO, show_beep, NULL, 2);
|
|
static SENSOR_DEVICE_ATTR(temp3_beep, S_IRUGO, show_beep, NULL, 2);
|
|
|
|
static ssize_t show_vrm_reg(struct device *dev, struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct it87_data *data = dev_get_drvdata(dev);
|
|
return sprintf(buf, "%u\n", data->vrm);
|
|
}
|
|
static ssize_t store_vrm_reg(struct device *dev, struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
struct it87_data *data = dev_get_drvdata(dev);
|
|
unsigned long val;
|
|
|
|
if (kstrtoul(buf, 10, &val) < 0)
|
|
return -EINVAL;
|
|
|
|
data->vrm = val;
|
|
|
|
return count;
|
|
}
|
|
static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg);
|
|
|
|
static ssize_t show_vid_reg(struct device *dev, struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct it87_data *data = it87_update_device(dev);
|
|
return sprintf(buf, "%ld\n", (long) vid_from_reg(data->vid, data->vrm));
|
|
}
|
|
static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL);
|
|
|
|
static ssize_t show_label(struct device *dev, struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
static const char * const labels[] = {
|
|
"+5V",
|
|
"5VSB",
|
|
"Vbat",
|
|
};
|
|
static const char * const labels_it8721[] = {
|
|
"+3.3V",
|
|
"3VSB",
|
|
"Vbat",
|
|
};
|
|
struct it87_data *data = dev_get_drvdata(dev);
|
|
int nr = to_sensor_dev_attr(attr)->index;
|
|
|
|
return sprintf(buf, "%s\n", has_12mv_adc(data) ? labels_it8721[nr]
|
|
: labels[nr]);
|
|
}
|
|
static SENSOR_DEVICE_ATTR(in3_label, S_IRUGO, show_label, NULL, 0);
|
|
static SENSOR_DEVICE_ATTR(in7_label, S_IRUGO, show_label, NULL, 1);
|
|
static SENSOR_DEVICE_ATTR(in8_label, S_IRUGO, show_label, NULL, 2);
|
|
|
|
static ssize_t show_name(struct device *dev, struct device_attribute
|
|
*devattr, char *buf)
|
|
{
|
|
struct it87_data *data = dev_get_drvdata(dev);
|
|
return sprintf(buf, "%s\n", data->name);
|
|
}
|
|
static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
|
|
|
|
static struct attribute *it87_attributes_in[9][5] = {
|
|
{
|
|
&sensor_dev_attr_in0_input.dev_attr.attr,
|
|
&sensor_dev_attr_in0_min.dev_attr.attr,
|
|
&sensor_dev_attr_in0_max.dev_attr.attr,
|
|
&sensor_dev_attr_in0_alarm.dev_attr.attr,
|
|
NULL
|
|
}, {
|
|
&sensor_dev_attr_in1_input.dev_attr.attr,
|
|
&sensor_dev_attr_in1_min.dev_attr.attr,
|
|
&sensor_dev_attr_in1_max.dev_attr.attr,
|
|
&sensor_dev_attr_in1_alarm.dev_attr.attr,
|
|
NULL
|
|
}, {
|
|
&sensor_dev_attr_in2_input.dev_attr.attr,
|
|
&sensor_dev_attr_in2_min.dev_attr.attr,
|
|
&sensor_dev_attr_in2_max.dev_attr.attr,
|
|
&sensor_dev_attr_in2_alarm.dev_attr.attr,
|
|
NULL
|
|
}, {
|
|
&sensor_dev_attr_in3_input.dev_attr.attr,
|
|
&sensor_dev_attr_in3_min.dev_attr.attr,
|
|
&sensor_dev_attr_in3_max.dev_attr.attr,
|
|
&sensor_dev_attr_in3_alarm.dev_attr.attr,
|
|
NULL
|
|
}, {
|
|
&sensor_dev_attr_in4_input.dev_attr.attr,
|
|
&sensor_dev_attr_in4_min.dev_attr.attr,
|
|
&sensor_dev_attr_in4_max.dev_attr.attr,
|
|
&sensor_dev_attr_in4_alarm.dev_attr.attr,
|
|
NULL
|
|
}, {
|
|
&sensor_dev_attr_in5_input.dev_attr.attr,
|
|
&sensor_dev_attr_in5_min.dev_attr.attr,
|
|
&sensor_dev_attr_in5_max.dev_attr.attr,
|
|
&sensor_dev_attr_in5_alarm.dev_attr.attr,
|
|
NULL
|
|
}, {
|
|
&sensor_dev_attr_in6_input.dev_attr.attr,
|
|
&sensor_dev_attr_in6_min.dev_attr.attr,
|
|
&sensor_dev_attr_in6_max.dev_attr.attr,
|
|
&sensor_dev_attr_in6_alarm.dev_attr.attr,
|
|
NULL
|
|
}, {
|
|
&sensor_dev_attr_in7_input.dev_attr.attr,
|
|
&sensor_dev_attr_in7_min.dev_attr.attr,
|
|
&sensor_dev_attr_in7_max.dev_attr.attr,
|
|
&sensor_dev_attr_in7_alarm.dev_attr.attr,
|
|
NULL
|
|
}, {
|
|
&sensor_dev_attr_in8_input.dev_attr.attr,
|
|
NULL
|
|
} };
|
|
|
|
static const struct attribute_group it87_group_in[9] = {
|
|
{ .attrs = it87_attributes_in[0] },
|
|
{ .attrs = it87_attributes_in[1] },
|
|
{ .attrs = it87_attributes_in[2] },
|
|
{ .attrs = it87_attributes_in[3] },
|
|
{ .attrs = it87_attributes_in[4] },
|
|
{ .attrs = it87_attributes_in[5] },
|
|
{ .attrs = it87_attributes_in[6] },
|
|
{ .attrs = it87_attributes_in[7] },
|
|
{ .attrs = it87_attributes_in[8] },
|
|
};
|
|
|
|
static struct attribute *it87_attributes_temp[3][6] = {
|
|
{
|
|
&sensor_dev_attr_temp1_input.dev_attr.attr,
|
|
&sensor_dev_attr_temp1_max.dev_attr.attr,
|
|
&sensor_dev_attr_temp1_min.dev_attr.attr,
|
|
&sensor_dev_attr_temp1_type.dev_attr.attr,
|
|
&sensor_dev_attr_temp1_alarm.dev_attr.attr,
|
|
NULL
|
|
} , {
|
|
&sensor_dev_attr_temp2_input.dev_attr.attr,
|
|
&sensor_dev_attr_temp2_max.dev_attr.attr,
|
|
&sensor_dev_attr_temp2_min.dev_attr.attr,
|
|
&sensor_dev_attr_temp2_type.dev_attr.attr,
|
|
&sensor_dev_attr_temp2_alarm.dev_attr.attr,
|
|
NULL
|
|
} , {
|
|
&sensor_dev_attr_temp3_input.dev_attr.attr,
|
|
&sensor_dev_attr_temp3_max.dev_attr.attr,
|
|
&sensor_dev_attr_temp3_min.dev_attr.attr,
|
|
&sensor_dev_attr_temp3_type.dev_attr.attr,
|
|
&sensor_dev_attr_temp3_alarm.dev_attr.attr,
|
|
NULL
|
|
} };
|
|
|
|
static const struct attribute_group it87_group_temp[3] = {
|
|
{ .attrs = it87_attributes_temp[0] },
|
|
{ .attrs = it87_attributes_temp[1] },
|
|
{ .attrs = it87_attributes_temp[2] },
|
|
};
|
|
|
|
static struct attribute *it87_attributes_temp_offset[] = {
|
|
&sensor_dev_attr_temp1_offset.dev_attr.attr,
|
|
&sensor_dev_attr_temp2_offset.dev_attr.attr,
|
|
&sensor_dev_attr_temp3_offset.dev_attr.attr,
|
|
};
|
|
|
|
static struct attribute *it87_attributes[] = {
|
|
&dev_attr_alarms.attr,
|
|
&sensor_dev_attr_intrusion0_alarm.dev_attr.attr,
|
|
&dev_attr_name.attr,
|
|
NULL
|
|
};
|
|
|
|
static const struct attribute_group it87_group = {
|
|
.attrs = it87_attributes,
|
|
};
|
|
|
|
static struct attribute *it87_attributes_in_beep[] = {
|
|
&sensor_dev_attr_in0_beep.dev_attr.attr,
|
|
&sensor_dev_attr_in1_beep.dev_attr.attr,
|
|
&sensor_dev_attr_in2_beep.dev_attr.attr,
|
|
&sensor_dev_attr_in3_beep.dev_attr.attr,
|
|
&sensor_dev_attr_in4_beep.dev_attr.attr,
|
|
&sensor_dev_attr_in5_beep.dev_attr.attr,
|
|
&sensor_dev_attr_in6_beep.dev_attr.attr,
|
|
&sensor_dev_attr_in7_beep.dev_attr.attr,
|
|
NULL
|
|
};
|
|
|
|
static struct attribute *it87_attributes_temp_beep[] = {
|
|
&sensor_dev_attr_temp1_beep.dev_attr.attr,
|
|
&sensor_dev_attr_temp2_beep.dev_attr.attr,
|
|
&sensor_dev_attr_temp3_beep.dev_attr.attr,
|
|
};
|
|
|
|
static struct attribute *it87_attributes_fan[5][3+1] = { {
|
|
&sensor_dev_attr_fan1_input.dev_attr.attr,
|
|
&sensor_dev_attr_fan1_min.dev_attr.attr,
|
|
&sensor_dev_attr_fan1_alarm.dev_attr.attr,
|
|
NULL
|
|
}, {
|
|
&sensor_dev_attr_fan2_input.dev_attr.attr,
|
|
&sensor_dev_attr_fan2_min.dev_attr.attr,
|
|
&sensor_dev_attr_fan2_alarm.dev_attr.attr,
|
|
NULL
|
|
}, {
|
|
&sensor_dev_attr_fan3_input.dev_attr.attr,
|
|
&sensor_dev_attr_fan3_min.dev_attr.attr,
|
|
&sensor_dev_attr_fan3_alarm.dev_attr.attr,
|
|
NULL
|
|
}, {
|
|
&sensor_dev_attr_fan4_input.dev_attr.attr,
|
|
&sensor_dev_attr_fan4_min.dev_attr.attr,
|
|
&sensor_dev_attr_fan4_alarm.dev_attr.attr,
|
|
NULL
|
|
}, {
|
|
&sensor_dev_attr_fan5_input.dev_attr.attr,
|
|
&sensor_dev_attr_fan5_min.dev_attr.attr,
|
|
&sensor_dev_attr_fan5_alarm.dev_attr.attr,
|
|
NULL
|
|
} };
|
|
|
|
static const struct attribute_group it87_group_fan[5] = {
|
|
{ .attrs = it87_attributes_fan[0] },
|
|
{ .attrs = it87_attributes_fan[1] },
|
|
{ .attrs = it87_attributes_fan[2] },
|
|
{ .attrs = it87_attributes_fan[3] },
|
|
{ .attrs = it87_attributes_fan[4] },
|
|
};
|
|
|
|
static const struct attribute *it87_attributes_fan_div[] = {
|
|
&sensor_dev_attr_fan1_div.dev_attr.attr,
|
|
&sensor_dev_attr_fan2_div.dev_attr.attr,
|
|
&sensor_dev_attr_fan3_div.dev_attr.attr,
|
|
};
|
|
|
|
static struct attribute *it87_attributes_pwm[3][4+1] = { {
|
|
&sensor_dev_attr_pwm1_enable.dev_attr.attr,
|
|
&sensor_dev_attr_pwm1.dev_attr.attr,
|
|
&dev_attr_pwm1_freq.attr,
|
|
&sensor_dev_attr_pwm1_auto_channels_temp.dev_attr.attr,
|
|
NULL
|
|
}, {
|
|
&sensor_dev_attr_pwm2_enable.dev_attr.attr,
|
|
&sensor_dev_attr_pwm2.dev_attr.attr,
|
|
&dev_attr_pwm2_freq.attr,
|
|
&sensor_dev_attr_pwm2_auto_channels_temp.dev_attr.attr,
|
|
NULL
|
|
}, {
|
|
&sensor_dev_attr_pwm3_enable.dev_attr.attr,
|
|
&sensor_dev_attr_pwm3.dev_attr.attr,
|
|
&dev_attr_pwm3_freq.attr,
|
|
&sensor_dev_attr_pwm3_auto_channels_temp.dev_attr.attr,
|
|
NULL
|
|
} };
|
|
|
|
static const struct attribute_group it87_group_pwm[3] = {
|
|
{ .attrs = it87_attributes_pwm[0] },
|
|
{ .attrs = it87_attributes_pwm[1] },
|
|
{ .attrs = it87_attributes_pwm[2] },
|
|
};
|
|
|
|
static struct attribute *it87_attributes_autopwm[3][9+1] = { {
|
|
&sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr,
|
|
&sensor_dev_attr_pwm1_auto_point2_pwm.dev_attr.attr,
|
|
&sensor_dev_attr_pwm1_auto_point3_pwm.dev_attr.attr,
|
|
&sensor_dev_attr_pwm1_auto_point4_pwm.dev_attr.attr,
|
|
&sensor_dev_attr_pwm1_auto_point1_temp.dev_attr.attr,
|
|
&sensor_dev_attr_pwm1_auto_point1_temp_hyst.dev_attr.attr,
|
|
&sensor_dev_attr_pwm1_auto_point2_temp.dev_attr.attr,
|
|
&sensor_dev_attr_pwm1_auto_point3_temp.dev_attr.attr,
|
|
&sensor_dev_attr_pwm1_auto_point4_temp.dev_attr.attr,
|
|
NULL
|
|
}, {
|
|
&sensor_dev_attr_pwm2_auto_point1_pwm.dev_attr.attr,
|
|
&sensor_dev_attr_pwm2_auto_point2_pwm.dev_attr.attr,
|
|
&sensor_dev_attr_pwm2_auto_point3_pwm.dev_attr.attr,
|
|
&sensor_dev_attr_pwm2_auto_point4_pwm.dev_attr.attr,
|
|
&sensor_dev_attr_pwm2_auto_point1_temp.dev_attr.attr,
|
|
&sensor_dev_attr_pwm2_auto_point1_temp_hyst.dev_attr.attr,
|
|
&sensor_dev_attr_pwm2_auto_point2_temp.dev_attr.attr,
|
|
&sensor_dev_attr_pwm2_auto_point3_temp.dev_attr.attr,
|
|
&sensor_dev_attr_pwm2_auto_point4_temp.dev_attr.attr,
|
|
NULL
|
|
}, {
|
|
&sensor_dev_attr_pwm3_auto_point1_pwm.dev_attr.attr,
|
|
&sensor_dev_attr_pwm3_auto_point2_pwm.dev_attr.attr,
|
|
&sensor_dev_attr_pwm3_auto_point3_pwm.dev_attr.attr,
|
|
&sensor_dev_attr_pwm3_auto_point4_pwm.dev_attr.attr,
|
|
&sensor_dev_attr_pwm3_auto_point1_temp.dev_attr.attr,
|
|
&sensor_dev_attr_pwm3_auto_point1_temp_hyst.dev_attr.attr,
|
|
&sensor_dev_attr_pwm3_auto_point2_temp.dev_attr.attr,
|
|
&sensor_dev_attr_pwm3_auto_point3_temp.dev_attr.attr,
|
|
&sensor_dev_attr_pwm3_auto_point4_temp.dev_attr.attr,
|
|
NULL
|
|
} };
|
|
|
|
static const struct attribute_group it87_group_autopwm[3] = {
|
|
{ .attrs = it87_attributes_autopwm[0] },
|
|
{ .attrs = it87_attributes_autopwm[1] },
|
|
{ .attrs = it87_attributes_autopwm[2] },
|
|
};
|
|
|
|
static struct attribute *it87_attributes_fan_beep[] = {
|
|
&sensor_dev_attr_fan1_beep.dev_attr.attr,
|
|
&sensor_dev_attr_fan2_beep.dev_attr.attr,
|
|
&sensor_dev_attr_fan3_beep.dev_attr.attr,
|
|
&sensor_dev_attr_fan4_beep.dev_attr.attr,
|
|
&sensor_dev_attr_fan5_beep.dev_attr.attr,
|
|
};
|
|
|
|
static struct attribute *it87_attributes_vid[] = {
|
|
&dev_attr_vrm.attr,
|
|
&dev_attr_cpu0_vid.attr,
|
|
NULL
|
|
};
|
|
|
|
static const struct attribute_group it87_group_vid = {
|
|
.attrs = it87_attributes_vid,
|
|
};
|
|
|
|
static struct attribute *it87_attributes_label[] = {
|
|
&sensor_dev_attr_in3_label.dev_attr.attr,
|
|
&sensor_dev_attr_in7_label.dev_attr.attr,
|
|
&sensor_dev_attr_in8_label.dev_attr.attr,
|
|
NULL
|
|
};
|
|
|
|
static const struct attribute_group it87_group_label = {
|
|
.attrs = it87_attributes_label,
|
|
};
|
|
|
|
/* SuperIO detection - will change isa_address if a chip is found */
|
|
static int __init it87_find(unsigned short *address,
|
|
struct it87_sio_data *sio_data)
|
|
{
|
|
int err;
|
|
u16 chip_type;
|
|
const char *board_vendor, *board_name;
|
|
|
|
err = superio_enter();
|
|
if (err)
|
|
return err;
|
|
|
|
err = -ENODEV;
|
|
chip_type = force_id ? force_id : superio_inw(DEVID);
|
|
|
|
switch (chip_type) {
|
|
case IT8705F_DEVID:
|
|
sio_data->type = it87;
|
|
break;
|
|
case IT8712F_DEVID:
|
|
sio_data->type = it8712;
|
|
break;
|
|
case IT8716F_DEVID:
|
|
case IT8726F_DEVID:
|
|
sio_data->type = it8716;
|
|
break;
|
|
case IT8718F_DEVID:
|
|
sio_data->type = it8718;
|
|
break;
|
|
case IT8720F_DEVID:
|
|
sio_data->type = it8720;
|
|
break;
|
|
case IT8721F_DEVID:
|
|
sio_data->type = it8721;
|
|
break;
|
|
case IT8728F_DEVID:
|
|
sio_data->type = it8728;
|
|
break;
|
|
case IT8771E_DEVID:
|
|
sio_data->type = it8771;
|
|
break;
|
|
case IT8772E_DEVID:
|
|
sio_data->type = it8772;
|
|
break;
|
|
case IT8782F_DEVID:
|
|
sio_data->type = it8782;
|
|
break;
|
|
case IT8783E_DEVID:
|
|
sio_data->type = it8783;
|
|
break;
|
|
case 0xffff: /* No device at all */
|
|
goto exit;
|
|
default:
|
|
pr_debug("Unsupported chip (DEVID=0x%x)\n", chip_type);
|
|
goto exit;
|
|
}
|
|
|
|
superio_select(PME);
|
|
if (!(superio_inb(IT87_ACT_REG) & 0x01)) {
|
|
pr_info("Device not activated, skipping\n");
|
|
goto exit;
|
|
}
|
|
|
|
*address = superio_inw(IT87_BASE_REG) & ~(IT87_EXTENT - 1);
|
|
if (*address == 0) {
|
|
pr_info("Base address not set, skipping\n");
|
|
goto exit;
|
|
}
|
|
|
|
err = 0;
|
|
sio_data->revision = superio_inb(DEVREV) & 0x0f;
|
|
pr_info("Found IT%04xF chip at 0x%x, revision %d\n",
|
|
chip_type, *address, sio_data->revision);
|
|
|
|
/* in8 (Vbat) is always internal */
|
|
sio_data->internal = (1 << 2);
|
|
|
|
/* Read GPIO config and VID value from LDN 7 (GPIO) */
|
|
if (sio_data->type == it87) {
|
|
/* The IT8705F doesn't have VID pins at all */
|
|
sio_data->skip_vid = 1;
|
|
|
|
/* The IT8705F has a different LD number for GPIO */
|
|
superio_select(5);
|
|
sio_data->beep_pin = superio_inb(IT87_SIO_BEEP_PIN_REG) & 0x3f;
|
|
} else if (sio_data->type == it8783) {
|
|
int reg25, reg27, reg2A, reg2C, regEF;
|
|
|
|
sio_data->skip_vid = 1; /* No VID */
|
|
|
|
superio_select(GPIO);
|
|
|
|
reg25 = superio_inb(IT87_SIO_GPIO1_REG);
|
|
reg27 = superio_inb(IT87_SIO_GPIO3_REG);
|
|
reg2A = superio_inb(IT87_SIO_PINX1_REG);
|
|
reg2C = superio_inb(IT87_SIO_PINX2_REG);
|
|
regEF = superio_inb(IT87_SIO_SPI_REG);
|
|
|
|
/* Check if fan3 is there or not */
|
|
if ((reg27 & (1 << 0)) || !(reg2C & (1 << 2)))
|
|
sio_data->skip_fan |= (1 << 2);
|
|
if ((reg25 & (1 << 4))
|
|
|| (!(reg2A & (1 << 1)) && (regEF & (1 << 0))))
|
|
sio_data->skip_pwm |= (1 << 2);
|
|
|
|
/* Check if fan2 is there or not */
|
|
if (reg27 & (1 << 7))
|
|
sio_data->skip_fan |= (1 << 1);
|
|
if (reg27 & (1 << 3))
|
|
sio_data->skip_pwm |= (1 << 1);
|
|
|
|
/* VIN5 */
|
|
if ((reg27 & (1 << 0)) || (reg2C & (1 << 2)))
|
|
sio_data->skip_in |= (1 << 5); /* No VIN5 */
|
|
|
|
/* VIN6 */
|
|
if (reg27 & (1 << 1))
|
|
sio_data->skip_in |= (1 << 6); /* No VIN6 */
|
|
|
|
/*
|
|
* VIN7
|
|
* Does not depend on bit 2 of Reg2C, contrary to datasheet.
|
|
*/
|
|
if (reg27 & (1 << 2)) {
|
|
/*
|
|
* The data sheet is a bit unclear regarding the
|
|
* internal voltage divider for VCCH5V. It says
|
|
* "This bit enables and switches VIN7 (pin 91) to the
|
|
* internal voltage divider for VCCH5V".
|
|
* This is different to other chips, where the internal
|
|
* voltage divider would connect VIN7 to an internal
|
|
* voltage source. Maybe that is the case here as well.
|
|
*
|
|
* Since we don't know for sure, re-route it if that is
|
|
* not the case, and ask the user to report if the
|
|
* resulting voltage is sane.
|
|
*/
|
|
if (!(reg2C & (1 << 1))) {
|
|
reg2C |= (1 << 1);
|
|
superio_outb(IT87_SIO_PINX2_REG, reg2C);
|
|
pr_notice("Routing internal VCCH5V to in7.\n");
|
|
}
|
|
pr_notice("in7 routed to internal voltage divider, with external pin disabled.\n");
|
|
pr_notice("Please report if it displays a reasonable voltage.\n");
|
|
}
|
|
|
|
if (reg2C & (1 << 0))
|
|
sio_data->internal |= (1 << 0);
|
|
if (reg2C & (1 << 1))
|
|
sio_data->internal |= (1 << 1);
|
|
|
|
sio_data->beep_pin = superio_inb(IT87_SIO_BEEP_PIN_REG) & 0x3f;
|
|
|
|
} else {
|
|
int reg;
|
|
bool uart6;
|
|
|
|
superio_select(GPIO);
|
|
|
|
reg = superio_inb(IT87_SIO_GPIO3_REG);
|
|
if (sio_data->type == it8721 || sio_data->type == it8728 ||
|
|
sio_data->type == it8771 || sio_data->type == it8772 ||
|
|
sio_data->type == it8782) {
|
|
/*
|
|
* IT8721F/IT8758E, and IT8782F don't have VID pins
|
|
* at all, not sure about the IT8728F and compatibles.
|
|
*/
|
|
sio_data->skip_vid = 1;
|
|
} else {
|
|
/* We need at least 4 VID pins */
|
|
if (reg & 0x0f) {
|
|
pr_info("VID is disabled (pins used for GPIO)\n");
|
|
sio_data->skip_vid = 1;
|
|
}
|
|
}
|
|
|
|
/* Check if fan3 is there or not */
|
|
if (reg & (1 << 6))
|
|
sio_data->skip_pwm |= (1 << 2);
|
|
if (reg & (1 << 7))
|
|
sio_data->skip_fan |= (1 << 2);
|
|
|
|
/* Check if fan2 is there or not */
|
|
reg = superio_inb(IT87_SIO_GPIO5_REG);
|
|
if (reg & (1 << 1))
|
|
sio_data->skip_pwm |= (1 << 1);
|
|
if (reg & (1 << 2))
|
|
sio_data->skip_fan |= (1 << 1);
|
|
|
|
if ((sio_data->type == it8718 || sio_data->type == it8720)
|
|
&& !(sio_data->skip_vid))
|
|
sio_data->vid_value = superio_inb(IT87_SIO_VID_REG);
|
|
|
|
reg = superio_inb(IT87_SIO_PINX2_REG);
|
|
|
|
uart6 = sio_data->type == it8782 && (reg & (1 << 2));
|
|
|
|
/*
|
|
* The IT8720F has no VIN7 pin, so VCCH should always be
|
|
* routed internally to VIN7 with an internal divider.
|
|
* Curiously, there still is a configuration bit to control
|
|
* this, which means it can be set incorrectly. And even
|
|
* more curiously, many boards out there are improperly
|
|
* configured, even though the IT8720F datasheet claims
|
|
* that the internal routing of VCCH to VIN7 is the default
|
|
* setting. So we force the internal routing in this case.
|
|
*
|
|
* On IT8782F, VIN7 is multiplexed with one of the UART6 pins.
|
|
* If UART6 is enabled, re-route VIN7 to the internal divider
|
|
* if that is not already the case.
|
|
*/
|
|
if ((sio_data->type == it8720 || uart6) && !(reg & (1 << 1))) {
|
|
reg |= (1 << 1);
|
|
superio_outb(IT87_SIO_PINX2_REG, reg);
|
|
pr_notice("Routing internal VCCH to in7\n");
|
|
}
|
|
if (reg & (1 << 0))
|
|
sio_data->internal |= (1 << 0);
|
|
if ((reg & (1 << 1)) || sio_data->type == it8721 ||
|
|
sio_data->type == it8728 ||
|
|
sio_data->type == it8771 ||
|
|
sio_data->type == it8772)
|
|
sio_data->internal |= (1 << 1);
|
|
|
|
/*
|
|
* On IT8782F, UART6 pins overlap with VIN5, VIN6, and VIN7.
|
|
* While VIN7 can be routed to the internal voltage divider,
|
|
* VIN5 and VIN6 are not available if UART6 is enabled.
|
|
*
|
|
* Also, temp3 is not available if UART6 is enabled and TEMPIN3
|
|
* is the temperature source. Since we can not read the
|
|
* temperature source here, skip_temp is preliminary.
|
|
*/
|
|
if (uart6) {
|
|
sio_data->skip_in |= (1 << 5) | (1 << 6);
|
|
sio_data->skip_temp |= (1 << 2);
|
|
}
|
|
|
|
sio_data->beep_pin = superio_inb(IT87_SIO_BEEP_PIN_REG) & 0x3f;
|
|
}
|
|
if (sio_data->beep_pin)
|
|
pr_info("Beeping is supported\n");
|
|
|
|
/* Disable specific features based on DMI strings */
|
|
board_vendor = dmi_get_system_info(DMI_BOARD_VENDOR);
|
|
board_name = dmi_get_system_info(DMI_BOARD_NAME);
|
|
if (board_vendor && board_name) {
|
|
if (strcmp(board_vendor, "nVIDIA") == 0
|
|
&& strcmp(board_name, "FN68PT") == 0) {
|
|
/*
|
|
* On the Shuttle SN68PT, FAN_CTL2 is apparently not
|
|
* connected to a fan, but to something else. One user
|
|
* has reported instant system power-off when changing
|
|
* the PWM2 duty cycle, so we disable it.
|
|
* I use the board name string as the trigger in case
|
|
* the same board is ever used in other systems.
|
|
*/
|
|
pr_info("Disabling pwm2 due to hardware constraints\n");
|
|
sio_data->skip_pwm = (1 << 1);
|
|
}
|
|
}
|
|
|
|
exit:
|
|
superio_exit();
|
|
return err;
|
|
}
|
|
|
|
static void it87_remove_files(struct device *dev)
|
|
{
|
|
struct it87_data *data = platform_get_drvdata(pdev);
|
|
struct it87_sio_data *sio_data = dev->platform_data;
|
|
int i;
|
|
|
|
sysfs_remove_group(&dev->kobj, &it87_group);
|
|
for (i = 0; i < 9; i++) {
|
|
if (sio_data->skip_in & (1 << i))
|
|
continue;
|
|
sysfs_remove_group(&dev->kobj, &it87_group_in[i]);
|
|
if (it87_attributes_in_beep[i])
|
|
sysfs_remove_file(&dev->kobj,
|
|
it87_attributes_in_beep[i]);
|
|
}
|
|
for (i = 0; i < 3; i++) {
|
|
if (!(data->has_temp & (1 << i)))
|
|
continue;
|
|
sysfs_remove_group(&dev->kobj, &it87_group_temp[i]);
|
|
if (has_temp_offset(data))
|
|
sysfs_remove_file(&dev->kobj,
|
|
it87_attributes_temp_offset[i]);
|
|
if (sio_data->beep_pin)
|
|
sysfs_remove_file(&dev->kobj,
|
|
it87_attributes_temp_beep[i]);
|
|
}
|
|
for (i = 0; i < 5; i++) {
|
|
if (!(data->has_fan & (1 << i)))
|
|
continue;
|
|
sysfs_remove_group(&dev->kobj, &it87_group_fan[i]);
|
|
if (sio_data->beep_pin)
|
|
sysfs_remove_file(&dev->kobj,
|
|
it87_attributes_fan_beep[i]);
|
|
if (i < 3 && !has_16bit_fans(data))
|
|
sysfs_remove_file(&dev->kobj,
|
|
it87_attributes_fan_div[i]);
|
|
}
|
|
for (i = 0; i < 3; i++) {
|
|
if (sio_data->skip_pwm & (1 << 0))
|
|
continue;
|
|
sysfs_remove_group(&dev->kobj, &it87_group_pwm[i]);
|
|
if (has_old_autopwm(data))
|
|
sysfs_remove_group(&dev->kobj,
|
|
&it87_group_autopwm[i]);
|
|
}
|
|
if (!sio_data->skip_vid)
|
|
sysfs_remove_group(&dev->kobj, &it87_group_vid);
|
|
sysfs_remove_group(&dev->kobj, &it87_group_label);
|
|
}
|
|
|
|
static int it87_probe(struct platform_device *pdev)
|
|
{
|
|
struct it87_data *data;
|
|
struct resource *res;
|
|
struct device *dev = &pdev->dev;
|
|
struct it87_sio_data *sio_data = dev->platform_data;
|
|
int err = 0, i;
|
|
int enable_pwm_interface;
|
|
int fan_beep_need_rw;
|
|
|
|
res = platform_get_resource(pdev, IORESOURCE_IO, 0);
|
|
if (!devm_request_region(&pdev->dev, res->start, IT87_EC_EXTENT,
|
|
DRVNAME)) {
|
|
dev_err(dev, "Failed to request region 0x%lx-0x%lx\n",
|
|
(unsigned long)res->start,
|
|
(unsigned long)(res->start + IT87_EC_EXTENT - 1));
|
|
return -EBUSY;
|
|
}
|
|
|
|
data = devm_kzalloc(&pdev->dev, sizeof(struct it87_data), GFP_KERNEL);
|
|
if (!data)
|
|
return -ENOMEM;
|
|
|
|
data->addr = res->start;
|
|
data->type = sio_data->type;
|
|
data->features = it87_devices[sio_data->type].features;
|
|
data->peci_mask = it87_devices[sio_data->type].peci_mask;
|
|
data->old_peci_mask = it87_devices[sio_data->type].old_peci_mask;
|
|
data->name = it87_devices[sio_data->type].name;
|
|
/*
|
|
* IT8705F Datasheet 0.4.1, 3h == Version G.
|
|
* IT8712F Datasheet 0.9.1, section 8.3.5 indicates 8h == Version J.
|
|
* These are the first revisions with 16-bit tachometer support.
|
|
*/
|
|
switch (data->type) {
|
|
case it87:
|
|
if (sio_data->revision >= 0x03) {
|
|
data->features &= ~FEAT_OLD_AUTOPWM;
|
|
data->features |= FEAT_16BIT_FANS;
|
|
}
|
|
break;
|
|
case it8712:
|
|
if (sio_data->revision >= 0x08) {
|
|
data->features &= ~FEAT_OLD_AUTOPWM;
|
|
data->features |= FEAT_16BIT_FANS;
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
/* Now, we do the remaining detection. */
|
|
if ((it87_read_value(data, IT87_REG_CONFIG) & 0x80)
|
|
|| it87_read_value(data, IT87_REG_CHIPID) != 0x90)
|
|
return -ENODEV;
|
|
|
|
platform_set_drvdata(pdev, data);
|
|
|
|
mutex_init(&data->update_lock);
|
|
|
|
/* Check PWM configuration */
|
|
enable_pwm_interface = it87_check_pwm(dev);
|
|
|
|
/* Starting with IT8721F, we handle scaling of internal voltages */
|
|
if (has_12mv_adc(data)) {
|
|
if (sio_data->internal & (1 << 0))
|
|
data->in_scaled |= (1 << 3); /* in3 is AVCC */
|
|
if (sio_data->internal & (1 << 1))
|
|
data->in_scaled |= (1 << 7); /* in7 is VSB */
|
|
if (sio_data->internal & (1 << 2))
|
|
data->in_scaled |= (1 << 8); /* in8 is Vbat */
|
|
} else if (sio_data->type == it8782 || sio_data->type == it8783) {
|
|
if (sio_data->internal & (1 << 0))
|
|
data->in_scaled |= (1 << 3); /* in3 is VCC5V */
|
|
if (sio_data->internal & (1 << 1))
|
|
data->in_scaled |= (1 << 7); /* in7 is VCCH5V */
|
|
}
|
|
|
|
data->has_temp = 0x07;
|
|
if (sio_data->skip_temp & (1 << 2)) {
|
|
if (sio_data->type == it8782
|
|
&& !(it87_read_value(data, IT87_REG_TEMP_EXTRA) & 0x80))
|
|
data->has_temp &= ~(1 << 2);
|
|
}
|
|
|
|
/* Initialize the IT87 chip */
|
|
it87_init_device(pdev);
|
|
|
|
/* Register sysfs hooks */
|
|
err = sysfs_create_group(&dev->kobj, &it87_group);
|
|
if (err)
|
|
return err;
|
|
|
|
for (i = 0; i < 9; i++) {
|
|
if (sio_data->skip_in & (1 << i))
|
|
continue;
|
|
err = sysfs_create_group(&dev->kobj, &it87_group_in[i]);
|
|
if (err)
|
|
goto error;
|
|
if (sio_data->beep_pin && it87_attributes_in_beep[i]) {
|
|
err = sysfs_create_file(&dev->kobj,
|
|
it87_attributes_in_beep[i]);
|
|
if (err)
|
|
goto error;
|
|
}
|
|
}
|
|
|
|
for (i = 0; i < 3; i++) {
|
|
if (!(data->has_temp & (1 << i)))
|
|
continue;
|
|
err = sysfs_create_group(&dev->kobj, &it87_group_temp[i]);
|
|
if (err)
|
|
goto error;
|
|
if (has_temp_offset(data)) {
|
|
err = sysfs_create_file(&dev->kobj,
|
|
it87_attributes_temp_offset[i]);
|
|
if (err)
|
|
goto error;
|
|
}
|
|
if (sio_data->beep_pin) {
|
|
err = sysfs_create_file(&dev->kobj,
|
|
it87_attributes_temp_beep[i]);
|
|
if (err)
|
|
goto error;
|
|
}
|
|
}
|
|
|
|
/* Do not create fan files for disabled fans */
|
|
fan_beep_need_rw = 1;
|
|
for (i = 0; i < 5; i++) {
|
|
if (!(data->has_fan & (1 << i)))
|
|
continue;
|
|
err = sysfs_create_group(&dev->kobj, &it87_group_fan[i]);
|
|
if (err)
|
|
goto error;
|
|
|
|
if (i < 3 && !has_16bit_fans(data)) {
|
|
err = sysfs_create_file(&dev->kobj,
|
|
it87_attributes_fan_div[i]);
|
|
if (err)
|
|
goto error;
|
|
}
|
|
|
|
if (sio_data->beep_pin) {
|
|
err = sysfs_create_file(&dev->kobj,
|
|
it87_attributes_fan_beep[i]);
|
|
if (err)
|
|
goto error;
|
|
if (!fan_beep_need_rw)
|
|
continue;
|
|
|
|
/*
|
|
* As we have a single beep enable bit for all fans,
|
|
* only the first enabled fan has a writable attribute
|
|
* for it.
|
|
*/
|
|
if (sysfs_chmod_file(&dev->kobj,
|
|
it87_attributes_fan_beep[i],
|
|
S_IRUGO | S_IWUSR))
|
|
dev_dbg(dev, "chmod +w fan%d_beep failed\n",
|
|
i + 1);
|
|
fan_beep_need_rw = 0;
|
|
}
|
|
}
|
|
|
|
if (enable_pwm_interface) {
|
|
for (i = 0; i < 3; i++) {
|
|
if (sio_data->skip_pwm & (1 << i))
|
|
continue;
|
|
err = sysfs_create_group(&dev->kobj,
|
|
&it87_group_pwm[i]);
|
|
if (err)
|
|
goto error;
|
|
|
|
if (!has_old_autopwm(data))
|
|
continue;
|
|
err = sysfs_create_group(&dev->kobj,
|
|
&it87_group_autopwm[i]);
|
|
if (err)
|
|
goto error;
|
|
}
|
|
}
|
|
|
|
if (!sio_data->skip_vid) {
|
|
data->vrm = vid_which_vrm();
|
|
/* VID reading from Super-I/O config space if available */
|
|
data->vid = sio_data->vid_value;
|
|
err = sysfs_create_group(&dev->kobj, &it87_group_vid);
|
|
if (err)
|
|
goto error;
|
|
}
|
|
|
|
/* Export labels for internal sensors */
|
|
for (i = 0; i < 3; i++) {
|
|
if (!(sio_data->internal & (1 << i)))
|
|
continue;
|
|
err = sysfs_create_file(&dev->kobj,
|
|
it87_attributes_label[i]);
|
|
if (err)
|
|
goto error;
|
|
}
|
|
|
|
data->hwmon_dev = hwmon_device_register(dev);
|
|
if (IS_ERR(data->hwmon_dev)) {
|
|
err = PTR_ERR(data->hwmon_dev);
|
|
goto error;
|
|
}
|
|
|
|
return 0;
|
|
|
|
error:
|
|
it87_remove_files(dev);
|
|
return err;
|
|
}
|
|
|
|
static int it87_remove(struct platform_device *pdev)
|
|
{
|
|
struct it87_data *data = platform_get_drvdata(pdev);
|
|
|
|
hwmon_device_unregister(data->hwmon_dev);
|
|
it87_remove_files(&pdev->dev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Must be called with data->update_lock held, except during initialization.
|
|
* We ignore the IT87 BUSY flag at this moment - it could lead to deadlocks,
|
|
* would slow down the IT87 access and should not be necessary.
|
|
*/
|
|
static int it87_read_value(struct it87_data *data, u8 reg)
|
|
{
|
|
outb_p(reg, data->addr + IT87_ADDR_REG_OFFSET);
|
|
return inb_p(data->addr + IT87_DATA_REG_OFFSET);
|
|
}
|
|
|
|
/*
|
|
* Must be called with data->update_lock held, except during initialization.
|
|
* We ignore the IT87 BUSY flag at this moment - it could lead to deadlocks,
|
|
* would slow down the IT87 access and should not be necessary.
|
|
*/
|
|
static void it87_write_value(struct it87_data *data, u8 reg, u8 value)
|
|
{
|
|
outb_p(reg, data->addr + IT87_ADDR_REG_OFFSET);
|
|
outb_p(value, data->addr + IT87_DATA_REG_OFFSET);
|
|
}
|
|
|
|
/* Return 1 if and only if the PWM interface is safe to use */
|
|
static int it87_check_pwm(struct device *dev)
|
|
{
|
|
struct it87_data *data = dev_get_drvdata(dev);
|
|
/*
|
|
* Some BIOSes fail to correctly configure the IT87 fans. All fans off
|
|
* and polarity set to active low is sign that this is the case so we
|
|
* disable pwm control to protect the user.
|
|
*/
|
|
int tmp = it87_read_value(data, IT87_REG_FAN_CTL);
|
|
if ((tmp & 0x87) == 0) {
|
|
if (fix_pwm_polarity) {
|
|
/*
|
|
* The user asks us to attempt a chip reconfiguration.
|
|
* This means switching to active high polarity and
|
|
* inverting all fan speed values.
|
|
*/
|
|
int i;
|
|
u8 pwm[3];
|
|
|
|
for (i = 0; i < 3; i++)
|
|
pwm[i] = it87_read_value(data,
|
|
IT87_REG_PWM(i));
|
|
|
|
/*
|
|
* If any fan is in automatic pwm mode, the polarity
|
|
* might be correct, as suspicious as it seems, so we
|
|
* better don't change anything (but still disable the
|
|
* PWM interface).
|
|
*/
|
|
if (!((pwm[0] | pwm[1] | pwm[2]) & 0x80)) {
|
|
dev_info(dev,
|
|
"Reconfiguring PWM to active high polarity\n");
|
|
it87_write_value(data, IT87_REG_FAN_CTL,
|
|
tmp | 0x87);
|
|
for (i = 0; i < 3; i++)
|
|
it87_write_value(data,
|
|
IT87_REG_PWM(i),
|
|
0x7f & ~pwm[i]);
|
|
return 1;
|
|
}
|
|
|
|
dev_info(dev,
|
|
"PWM configuration is too broken to be fixed\n");
|
|
}
|
|
|
|
dev_info(dev,
|
|
"Detected broken BIOS defaults, disabling PWM interface\n");
|
|
return 0;
|
|
} else if (fix_pwm_polarity) {
|
|
dev_info(dev,
|
|
"PWM configuration looks sane, won't touch\n");
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
/* Called when we have found a new IT87. */
|
|
static void it87_init_device(struct platform_device *pdev)
|
|
{
|
|
struct it87_sio_data *sio_data = pdev->dev.platform_data;
|
|
struct it87_data *data = platform_get_drvdata(pdev);
|
|
int tmp, i;
|
|
u8 mask;
|
|
|
|
/*
|
|
* For each PWM channel:
|
|
* - If it is in automatic mode, setting to manual mode should set
|
|
* the fan to full speed by default.
|
|
* - If it is in manual mode, we need a mapping to temperature
|
|
* channels to use when later setting to automatic mode later.
|
|
* Use a 1:1 mapping by default (we are clueless.)
|
|
* In both cases, the value can (and should) be changed by the user
|
|
* prior to switching to a different mode.
|
|
* Note that this is no longer needed for the IT8721F and later, as
|
|
* these have separate registers for the temperature mapping and the
|
|
* manual duty cycle.
|
|
*/
|
|
for (i = 0; i < 3; i++) {
|
|
data->pwm_temp_map[i] = i;
|
|
data->pwm_duty[i] = 0x7f; /* Full speed */
|
|
data->auto_pwm[i][3] = 0x7f; /* Full speed, hard-coded */
|
|
}
|
|
|
|
/*
|
|
* Some chips seem to have default value 0xff for all limit
|
|
* registers. For low voltage limits it makes no sense and triggers
|
|
* alarms, so change to 0 instead. For high temperature limits, it
|
|
* means -1 degree C, which surprisingly doesn't trigger an alarm,
|
|
* but is still confusing, so change to 127 degrees C.
|
|
*/
|
|
for (i = 0; i < 8; i++) {
|
|
tmp = it87_read_value(data, IT87_REG_VIN_MIN(i));
|
|
if (tmp == 0xff)
|
|
it87_write_value(data, IT87_REG_VIN_MIN(i), 0);
|
|
}
|
|
for (i = 0; i < 3; i++) {
|
|
tmp = it87_read_value(data, IT87_REG_TEMP_HIGH(i));
|
|
if (tmp == 0xff)
|
|
it87_write_value(data, IT87_REG_TEMP_HIGH(i), 127);
|
|
}
|
|
|
|
/*
|
|
* Temperature channels are not forcibly enabled, as they can be
|
|
* set to two different sensor types and we can't guess which one
|
|
* is correct for a given system. These channels can be enabled at
|
|
* run-time through the temp{1-3}_type sysfs accessors if needed.
|
|
*/
|
|
|
|
/* Check if voltage monitors are reset manually or by some reason */
|
|
tmp = it87_read_value(data, IT87_REG_VIN_ENABLE);
|
|
if ((tmp & 0xff) == 0) {
|
|
/* Enable all voltage monitors */
|
|
it87_write_value(data, IT87_REG_VIN_ENABLE, 0xff);
|
|
}
|
|
|
|
/* Check if tachometers are reset manually or by some reason */
|
|
mask = 0x70 & ~(sio_data->skip_fan << 4);
|
|
data->fan_main_ctrl = it87_read_value(data, IT87_REG_FAN_MAIN_CTRL);
|
|
if ((data->fan_main_ctrl & mask) == 0) {
|
|
/* Enable all fan tachometers */
|
|
data->fan_main_ctrl |= mask;
|
|
it87_write_value(data, IT87_REG_FAN_MAIN_CTRL,
|
|
data->fan_main_ctrl);
|
|
}
|
|
data->has_fan = (data->fan_main_ctrl >> 4) & 0x07;
|
|
|
|
/* Set tachometers to 16-bit mode if needed */
|
|
if (has_16bit_fans(data)) {
|
|
tmp = it87_read_value(data, IT87_REG_FAN_16BIT);
|
|
if (~tmp & 0x07 & data->has_fan) {
|
|
dev_dbg(&pdev->dev,
|
|
"Setting fan1-3 to 16-bit mode\n");
|
|
it87_write_value(data, IT87_REG_FAN_16BIT,
|
|
tmp | 0x07);
|
|
}
|
|
/* IT8705F, IT8782F, and IT8783E/F only support three fans. */
|
|
if (data->type != it87 && data->type != it8782 &&
|
|
data->type != it8783) {
|
|
if (tmp & (1 << 4))
|
|
data->has_fan |= (1 << 3); /* fan4 enabled */
|
|
if (tmp & (1 << 5))
|
|
data->has_fan |= (1 << 4); /* fan5 enabled */
|
|
}
|
|
}
|
|
|
|
/* Fan input pins may be used for alternative functions */
|
|
data->has_fan &= ~sio_data->skip_fan;
|
|
|
|
/* Start monitoring */
|
|
it87_write_value(data, IT87_REG_CONFIG,
|
|
(it87_read_value(data, IT87_REG_CONFIG) & 0x3e)
|
|
| (update_vbat ? 0x41 : 0x01));
|
|
}
|
|
|
|
static void it87_update_pwm_ctrl(struct it87_data *data, int nr)
|
|
{
|
|
data->pwm_ctrl[nr] = it87_read_value(data, IT87_REG_PWM(nr));
|
|
if (has_newer_autopwm(data)) {
|
|
data->pwm_temp_map[nr] = data->pwm_ctrl[nr] & 0x03;
|
|
data->pwm_duty[nr] = it87_read_value(data,
|
|
IT87_REG_PWM_DUTY(nr));
|
|
} else {
|
|
if (data->pwm_ctrl[nr] & 0x80) /* Automatic mode */
|
|
data->pwm_temp_map[nr] = data->pwm_ctrl[nr] & 0x03;
|
|
else /* Manual mode */
|
|
data->pwm_duty[nr] = data->pwm_ctrl[nr] & 0x7f;
|
|
}
|
|
|
|
if (has_old_autopwm(data)) {
|
|
int i;
|
|
|
|
for (i = 0; i < 5 ; i++)
|
|
data->auto_temp[nr][i] = it87_read_value(data,
|
|
IT87_REG_AUTO_TEMP(nr, i));
|
|
for (i = 0; i < 3 ; i++)
|
|
data->auto_pwm[nr][i] = it87_read_value(data,
|
|
IT87_REG_AUTO_PWM(nr, i));
|
|
}
|
|
}
|
|
|
|
static struct it87_data *it87_update_device(struct device *dev)
|
|
{
|
|
struct it87_data *data = dev_get_drvdata(dev);
|
|
int i;
|
|
|
|
mutex_lock(&data->update_lock);
|
|
|
|
if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
|
|
|| !data->valid) {
|
|
if (update_vbat) {
|
|
/*
|
|
* Cleared after each update, so reenable. Value
|
|
* returned by this read will be previous value
|
|
*/
|
|
it87_write_value(data, IT87_REG_CONFIG,
|
|
it87_read_value(data, IT87_REG_CONFIG) | 0x40);
|
|
}
|
|
for (i = 0; i <= 7; i++) {
|
|
data->in[i][0] =
|
|
it87_read_value(data, IT87_REG_VIN(i));
|
|
data->in[i][1] =
|
|
it87_read_value(data, IT87_REG_VIN_MIN(i));
|
|
data->in[i][2] =
|
|
it87_read_value(data, IT87_REG_VIN_MAX(i));
|
|
}
|
|
/* in8 (battery) has no limit registers */
|
|
data->in[8][0] = it87_read_value(data, IT87_REG_VIN(8));
|
|
|
|
for (i = 0; i < 5; i++) {
|
|
/* Skip disabled fans */
|
|
if (!(data->has_fan & (1 << i)))
|
|
continue;
|
|
|
|
data->fan[i][1] =
|
|
it87_read_value(data, IT87_REG_FAN_MIN[i]);
|
|
data->fan[i][0] = it87_read_value(data,
|
|
IT87_REG_FAN[i]);
|
|
/* Add high byte if in 16-bit mode */
|
|
if (has_16bit_fans(data)) {
|
|
data->fan[i][0] |= it87_read_value(data,
|
|
IT87_REG_FANX[i]) << 8;
|
|
data->fan[i][1] |= it87_read_value(data,
|
|
IT87_REG_FANX_MIN[i]) << 8;
|
|
}
|
|
}
|
|
for (i = 0; i < 3; i++) {
|
|
if (!(data->has_temp & (1 << i)))
|
|
continue;
|
|
data->temp[i][0] =
|
|
it87_read_value(data, IT87_REG_TEMP(i));
|
|
data->temp[i][1] =
|
|
it87_read_value(data, IT87_REG_TEMP_LOW(i));
|
|
data->temp[i][2] =
|
|
it87_read_value(data, IT87_REG_TEMP_HIGH(i));
|
|
if (has_temp_offset(data))
|
|
data->temp[i][3] =
|
|
it87_read_value(data,
|
|
IT87_REG_TEMP_OFFSET[i]);
|
|
}
|
|
|
|
/* Newer chips don't have clock dividers */
|
|
if ((data->has_fan & 0x07) && !has_16bit_fans(data)) {
|
|
i = it87_read_value(data, IT87_REG_FAN_DIV);
|
|
data->fan_div[0] = i & 0x07;
|
|
data->fan_div[1] = (i >> 3) & 0x07;
|
|
data->fan_div[2] = (i & 0x40) ? 3 : 1;
|
|
}
|
|
|
|
data->alarms =
|
|
it87_read_value(data, IT87_REG_ALARM1) |
|
|
(it87_read_value(data, IT87_REG_ALARM2) << 8) |
|
|
(it87_read_value(data, IT87_REG_ALARM3) << 16);
|
|
data->beeps = it87_read_value(data, IT87_REG_BEEP_ENABLE);
|
|
|
|
data->fan_main_ctrl = it87_read_value(data,
|
|
IT87_REG_FAN_MAIN_CTRL);
|
|
data->fan_ctl = it87_read_value(data, IT87_REG_FAN_CTL);
|
|
for (i = 0; i < 3; i++)
|
|
it87_update_pwm_ctrl(data, i);
|
|
|
|
data->sensor = it87_read_value(data, IT87_REG_TEMP_ENABLE);
|
|
data->extra = it87_read_value(data, IT87_REG_TEMP_EXTRA);
|
|
/*
|
|
* The IT8705F does not have VID capability.
|
|
* The IT8718F and later don't use IT87_REG_VID for the
|
|
* same purpose.
|
|
*/
|
|
if (data->type == it8712 || data->type == it8716) {
|
|
data->vid = it87_read_value(data, IT87_REG_VID);
|
|
/*
|
|
* The older IT8712F revisions had only 5 VID pins,
|
|
* but we assume it is always safe to read 6 bits.
|
|
*/
|
|
data->vid &= 0x3f;
|
|
}
|
|
data->last_updated = jiffies;
|
|
data->valid = 1;
|
|
}
|
|
|
|
mutex_unlock(&data->update_lock);
|
|
|
|
return data;
|
|
}
|
|
|
|
static int __init it87_device_add(unsigned short address,
|
|
const struct it87_sio_data *sio_data)
|
|
{
|
|
struct resource res = {
|
|
.start = address + IT87_EC_OFFSET,
|
|
.end = address + IT87_EC_OFFSET + IT87_EC_EXTENT - 1,
|
|
.name = DRVNAME,
|
|
.flags = IORESOURCE_IO,
|
|
};
|
|
int err;
|
|
|
|
err = acpi_check_resource_conflict(&res);
|
|
if (err)
|
|
goto exit;
|
|
|
|
pdev = platform_device_alloc(DRVNAME, address);
|
|
if (!pdev) {
|
|
err = -ENOMEM;
|
|
pr_err("Device allocation failed\n");
|
|
goto exit;
|
|
}
|
|
|
|
err = platform_device_add_resources(pdev, &res, 1);
|
|
if (err) {
|
|
pr_err("Device resource addition failed (%d)\n", err);
|
|
goto exit_device_put;
|
|
}
|
|
|
|
err = platform_device_add_data(pdev, sio_data,
|
|
sizeof(struct it87_sio_data));
|
|
if (err) {
|
|
pr_err("Platform data allocation failed\n");
|
|
goto exit_device_put;
|
|
}
|
|
|
|
err = platform_device_add(pdev);
|
|
if (err) {
|
|
pr_err("Device addition failed (%d)\n", err);
|
|
goto exit_device_put;
|
|
}
|
|
|
|
return 0;
|
|
|
|
exit_device_put:
|
|
platform_device_put(pdev);
|
|
exit:
|
|
return err;
|
|
}
|
|
|
|
static int __init sm_it87_init(void)
|
|
{
|
|
int err;
|
|
unsigned short isa_address = 0;
|
|
struct it87_sio_data sio_data;
|
|
|
|
memset(&sio_data, 0, sizeof(struct it87_sio_data));
|
|
err = it87_find(&isa_address, &sio_data);
|
|
if (err)
|
|
return err;
|
|
err = platform_driver_register(&it87_driver);
|
|
if (err)
|
|
return err;
|
|
|
|
err = it87_device_add(isa_address, &sio_data);
|
|
if (err) {
|
|
platform_driver_unregister(&it87_driver);
|
|
return err;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void __exit sm_it87_exit(void)
|
|
{
|
|
platform_device_unregister(pdev);
|
|
platform_driver_unregister(&it87_driver);
|
|
}
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|
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|
MODULE_AUTHOR("Chris Gauthron, Jean Delvare <khali@linux-fr.org>");
|
|
MODULE_DESCRIPTION("IT8705F/IT871xF/IT872xF hardware monitoring driver");
|
|
module_param(update_vbat, bool, 0);
|
|
MODULE_PARM_DESC(update_vbat, "Update vbat if set else return powerup value");
|
|
module_param(fix_pwm_polarity, bool, 0);
|
|
MODULE_PARM_DESC(fix_pwm_polarity,
|
|
"Force PWM polarity to active high (DANGEROUS)");
|
|
MODULE_LICENSE("GPL");
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|
|
|
module_init(sm_it87_init);
|
|
module_exit(sm_it87_exit);
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