| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Guenter Roeck | 11770 | 58.90% | 61 | 32.45% |
| Jean Delvare | 3020 | 15.11% | 55 | 29.26% |
| Frank Crawford | 1807 | 9.04% | 26 | 13.83% |
| Florin Iucha | 1234 | 6.17% | 1 | 0.53% |
| Maciej S. Szmigiero | 547 | 2.74% | 2 | 1.06% |
| Corentin Labbe | 399 | 2.00% | 1 | 0.53% |
| Zephaniah E. Hull | 227 | 1.14% | 3 | 1.60% |
| Rudolf Marek | 192 | 0.96% | 5 | 2.66% |
| Jonas Munsin | 192 | 0.96% | 4 | 2.13% |
| Björn Mork | 131 | 0.66% | 1 | 0.53% |
| Yani Ioannou | 107 | 0.54% | 1 | 0.53% |
| Justin Maggard | 83 | 0.42% | 1 | 0.53% |
| Greg Kroah-Hartman | 63 | 0.32% | 3 | 1.60% |
| Ahmad Khalifa | 32 | 0.16% | 2 | 1.06% |
| Nat Gurumoorthy | 25 | 0.13% | 1 | 0.53% |
| Thomas Lorblanches | 24 | 0.12% | 1 | 0.53% |
| Takeru Komoriya | 22 | 0.11% | 1 | 0.53% |
| Joe Perches | 18 | 0.09% | 1 | 0.53% |
| Björn Helgaas | 18 | 0.09% | 1 | 0.53% |
| Mark M. Hoffman | 17 | 0.09% | 2 | 1.06% |
| Andrew Paprocki | 10 | 0.05% | 2 | 1.06% |
| Jean-Marc Spaggiari | 7 | 0.04% | 1 | 0.53% |
| Paul Fertser | 7 | 0.04% | 1 | 0.53% |
| Julia Lawall | 7 | 0.04% | 1 | 0.53% |
| Ingo Molnar | 5 | 0.03% | 1 | 0.53% |
| Jonathan Cameron | 4 | 0.02% | 1 | 0.53% |
| Alexey Dobriyan | 4 | 0.02% | 1 | 0.53% |
| Frans Meulenbroeks | 4 | 0.02% | 1 | 0.53% |
| Rusty Russell | 2 | 0.01% | 1 | 0.53% |
| Darren Jenkins | 2 | 0.01% | 1 | 0.53% |
| Andrew Morton | 1 | 0.01% | 1 | 0.53% |
| H Hartley Sweeten | 1 | 0.01% | 1 | 0.53% |
| Laurent Riffard | 1 | 0.01% | 1 | 0.53% |
| Thomas Gleixner | 1 | 0.01% | 1 | 0.53% |
| Total | 19984 | 188 |
// SPDX-License-Identifier: GPL-2.0-or-later /* * it87.c - Part of lm_sensors, Linux kernel modules for hardware * monitoring. * * The IT8705F is an LPC-based Super I/O part that contains UARTs, a * parallel port, an IR port, a MIDI port, a floppy controller, etc., in * addition to an Environment Controller (Enhanced Hardware Monitor and * Fan Controller) * * This driver supports only the Environment Controller in the IT8705F and * similar parts. The other devices are supported by different drivers. * * Supports: IT8603E Super I/O chip w/LPC interface * IT8620E Super I/O chip w/LPC interface * IT8622E Super I/O chip w/LPC interface * IT8623E Super I/O chip w/LPC interface * IT8628E Super I/O chip w/LPC interface * IT8705F Super I/O chip w/LPC interface * IT8712F Super I/O chip w/LPC interface * IT8716F Super I/O chip w/LPC interface * IT8718F Super I/O chip w/LPC interface * IT8720F Super I/O chip w/LPC interface * IT8721F Super I/O chip w/LPC interface * IT8726F Super I/O chip w/LPC interface * IT8728F Super I/O chip w/LPC interface * IT8732F Super I/O chip w/LPC interface * IT8758E Super I/O chip w/LPC interface * IT8771E Super I/O chip w/LPC interface * IT8772E Super I/O chip w/LPC interface * IT8781F Super I/O chip w/LPC interface * IT8782F Super I/O chip w/LPC interface * IT8783E/F Super I/O chip w/LPC interface * IT8786E Super I/O chip w/LPC interface * IT8790E Super I/O chip w/LPC interface * IT8792E Super I/O chip w/LPC interface * IT87952E Super I/O chip w/LPC interface * Sis950 A clone of the IT8705F * * Copyright (C) 2001 Chris Gauthron * Copyright (C) 2005-2010 Jean Delvare <jdelvare@suse.de> */ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt #include <linux/bitops.h> #include <linux/module.h> #include <linux/init.h> #include <linux/slab.h> #include <linux/jiffies.h> #include <linux/platform_device.h> #include <linux/hwmon.h> #include <linux/hwmon-sysfs.h> #include <linux/hwmon-vid.h> #include <linux/err.h> #include <linux/mutex.h> #include <linux/sysfs.h> #include <linux/string.h> #include <linux/dmi.h> #include <linux/acpi.h> #include <linux/io.h> #define DRVNAME "it87" enum chips { it87, it8712, it8716, it8718, it8720, it8721, it8728, it8732, it8771, it8772, it8781, it8782, it8783, it8786, it8790, it8792, it8603, it8620, it8622, it8628, it87952 }; static struct platform_device *it87_pdev[2]; #define REG_2E 0x2e /* The register to read/write */ #define REG_4E 0x4e /* Secondary register to read/write */ #define DEV 0x07 /* Register: Logical device select */ #define PME 0x04 /* The device with the fan registers in it */ /* The device with the IT8718F/IT8720F VID value in it */ #define GPIO 0x07 #define DEVID 0x20 /* Register: Device ID */ #define DEVREV 0x22 /* Register: Device Revision */ static inline void __superio_enter(int ioreg) { outb(0x87, ioreg); outb(0x01, ioreg); outb(0x55, ioreg); outb(ioreg == REG_4E ? 0xaa : 0x55, ioreg); } static inline int superio_inb(int ioreg, int reg) { outb(reg, ioreg); return inb(ioreg + 1); } static inline void superio_outb(int ioreg, int reg, int val) { outb(reg, ioreg); outb(val, ioreg + 1); } static int superio_inw(int ioreg, int reg) { int val; outb(reg++, ioreg); val = inb(ioreg + 1) << 8; outb(reg, ioreg); val |= inb(ioreg + 1); return val; } static inline void superio_select(int ioreg, int ldn) { outb(DEV, ioreg); outb(ldn, ioreg + 1); } static inline int superio_enter(int ioreg, bool noentry) { /* * Try to reserve ioreg and ioreg + 1 for exclusive access. */ if (!request_muxed_region(ioreg, 2, DRVNAME)) return -EBUSY; if (!noentry) __superio_enter(ioreg); return 0; } static inline void superio_exit(int ioreg, bool noexit) { if (!noexit) { outb(0x02, ioreg); outb(0x02, ioreg + 1); } release_region(ioreg, 2); } /* Logical device 4 registers */ #define IT8712F_DEVID 0x8712 #define IT8705F_DEVID 0x8705 #define IT8716F_DEVID 0x8716 #define IT8718F_DEVID 0x8718 #define IT8720F_DEVID 0x8720 #define IT8721F_DEVID 0x8721 #define IT8726F_DEVID 0x8726 #define IT8728F_DEVID 0x8728 #define IT8732F_DEVID 0x8732 #define IT8792E_DEVID 0x8733 #define IT8771E_DEVID 0x8771 #define IT8772E_DEVID 0x8772 #define IT8781F_DEVID 0x8781 #define IT8782F_DEVID 0x8782 #define IT8783E_DEVID 0x8783 #define IT8786E_DEVID 0x8786 #define IT8790E_DEVID 0x8790 #define IT8603E_DEVID 0x8603 #define IT8620E_DEVID 0x8620 #define IT8622E_DEVID 0x8622 #define IT8623E_DEVID 0x8623 #define IT8628E_DEVID 0x8628 #define IT87952E_DEVID 0x8695 /* Logical device 4 (Environmental Monitor) registers */ #define IT87_ACT_REG 0x30 #define IT87_BASE_REG 0x60 #define IT87_SPECIAL_CFG_REG 0xf3 /* special configuration register */ /* Logical device 7 registers (IT8712F and later) */ #define IT87_SIO_GPIO1_REG 0x25 #define IT87_SIO_GPIO2_REG 0x26 #define IT87_SIO_GPIO3_REG 0x27 #define IT87_SIO_GPIO4_REG 0x28 #define IT87_SIO_GPIO5_REG 0x29 #define IT87_SIO_PINX1_REG 0x2a /* Pin selection */ #define IT87_SIO_PINX2_REG 0x2c /* Pin selection */ #define IT87_SIO_SPI_REG 0xef /* SPI function pin select */ #define IT87_SIO_VID_REG 0xfc /* VID value */ #define IT87_SIO_BEEP_PIN_REG 0xf6 /* Beep pin mapping */ /* Force chip IDs to specified values. Should only be used for testing */ static unsigned short force_id[2]; static unsigned int force_id_cnt; /* ACPI resource conflicts are ignored if this parameter is set to 1 */ static bool ignore_resource_conflict; /* Update battery voltage after every reading if true */ static bool update_vbat; /* Not all BIOSes properly configure the PWM registers */ static bool fix_pwm_polarity; /* Many IT87 constants specified below */ /* Length of ISA address segment */ #define IT87_EXTENT 8 /* Length of ISA address segment for Environmental Controller */ #define IT87_EC_EXTENT 2 /* Offset of EC registers from ISA base address */ #define IT87_EC_OFFSET 5 /* Where are the ISA address/data registers relative to the EC base address */ #define IT87_ADDR_REG_OFFSET 0 #define IT87_DATA_REG_OFFSET 1 /*----- The IT87 registers -----*/ #define IT87_REG_CONFIG 0x00 #define IT87_REG_ALARM1 0x01 #define IT87_REG_ALARM2 0x02 #define IT87_REG_ALARM3 0x03 /* * The IT8718F and IT8720F have the VID value in a different register, in * Super-I/O configuration space. */ #define IT87_REG_VID 0x0a /* Interface Selection register on other chips */ #define IT87_REG_IFSEL 0x0a /* * The IT8705F and IT8712F earlier than revision 0x08 use register 0x0b * for fan divisors. Later IT8712F revisions must use 16-bit tachometer * mode. */ #define IT87_REG_FAN_DIV 0x0b #define IT87_REG_FAN_16BIT 0x0c /* * Monitors: * - up to 13 voltage (0 to 7, battery, avcc, 10 to 12) * - up to 6 temp (1 to 6) * - up to 6 fan (1 to 6) */ static const u8 IT87_REG_FAN[] = { 0x0d, 0x0e, 0x0f, 0x80, 0x82, 0x4c }; static const u8 IT87_REG_FAN_MIN[] = { 0x10, 0x11, 0x12, 0x84, 0x86, 0x4e }; static const u8 IT87_REG_FANX[] = { 0x18, 0x19, 0x1a, 0x81, 0x83, 0x4d }; static const u8 IT87_REG_FANX_MIN[] = { 0x1b, 0x1c, 0x1d, 0x85, 0x87, 0x4f }; static const u8 IT87_REG_TEMP_OFFSET[] = { 0x56, 0x57, 0x59 }; #define IT87_REG_FAN_MAIN_CTRL 0x13 #define IT87_REG_FAN_CTL 0x14 static const u8 IT87_REG_PWM[] = { 0x15, 0x16, 0x17, 0x7f, 0xa7, 0xaf }; static const u8 IT87_REG_PWM_DUTY[] = { 0x63, 0x6b, 0x73, 0x7b, 0xa3, 0xab }; static const u8 IT87_REG_VIN[] = { 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x2f, 0x2c, 0x2d, 0x2e }; #define IT87_REG_TEMP(nr) (0x29 + (nr)) #define IT87_REG_VIN_MAX(nr) (0x30 + (nr) * 2) #define IT87_REG_VIN_MIN(nr) (0x31 + (nr) * 2) #define IT87_REG_TEMP_HIGH(nr) (0x40 + (nr) * 2) #define IT87_REG_TEMP_LOW(nr) (0x41 + (nr) * 2) #define IT87_REG_VIN_ENABLE 0x50 #define IT87_REG_TEMP_ENABLE 0x51 #define IT87_REG_TEMP_EXTRA 0x55 #define IT87_REG_BEEP_ENABLE 0x5c #define IT87_REG_CHIPID 0x58 static const u8 IT87_REG_AUTO_BASE[] = { 0x60, 0x68, 0x70, 0x78, 0xa0, 0xa8 }; #define IT87_REG_AUTO_TEMP(nr, i) (IT87_REG_AUTO_BASE[nr] + (i)) #define IT87_REG_AUTO_PWM(nr, i) (IT87_REG_AUTO_BASE[nr] + 5 + (i)) #define IT87_REG_TEMP456_ENABLE 0x77 #define NUM_VIN ARRAY_SIZE(IT87_REG_VIN) #define NUM_VIN_LIMIT 8 #define NUM_TEMP 6 #define NUM_TEMP_OFFSET ARRAY_SIZE(IT87_REG_TEMP_OFFSET) #define NUM_TEMP_LIMIT 3 #define NUM_FAN ARRAY_SIZE(IT87_REG_FAN) #define NUM_FAN_DIV 3 #define NUM_PWM ARRAY_SIZE(IT87_REG_PWM) #define NUM_AUTO_PWM ARRAY_SIZE(IT87_REG_PWM) struct it87_devices { const char *name; const char * const model; u32 features; u8 peci_mask; u8 old_peci_mask; u8 smbus_bitmap; /* SMBus enable bits in extra config register */ u8 ec_special_config; }; #define FEAT_12MV_ADC BIT(0) #define FEAT_NEWER_AUTOPWM BIT(1) #define FEAT_OLD_AUTOPWM BIT(2) #define FEAT_16BIT_FANS BIT(3) #define FEAT_TEMP_OFFSET BIT(4) #define FEAT_TEMP_PECI BIT(5) #define FEAT_TEMP_OLD_PECI BIT(6) #define FEAT_FAN16_CONFIG BIT(7) /* Need to enable 16-bit fans */ #define FEAT_FIVE_FANS BIT(8) /* Supports five fans */ #define FEAT_VID BIT(9) /* Set if chip supports VID */ #define FEAT_IN7_INTERNAL BIT(10) /* Set if in7 is internal */ #define FEAT_SIX_FANS BIT(11) /* Supports six fans */ #define FEAT_10_9MV_ADC BIT(12) #define FEAT_AVCC3 BIT(13) /* Chip supports in9/AVCC3 */ #define FEAT_FIVE_PWM BIT(14) /* Chip supports 5 pwm chn */ #define FEAT_SIX_PWM BIT(15) /* Chip supports 6 pwm chn */ #define FEAT_PWM_FREQ2 BIT(16) /* Separate pwm freq 2 */ #define FEAT_SIX_TEMP BIT(17) /* Up to 6 temp sensors */ #define FEAT_VIN3_5V BIT(18) /* VIN3 connected to +5V */ /* * Disabling configuration mode on some chips can result in system * hang-ups and access failures to the Super-IO chip at the * second SIO address. Never exit configuration mode on these * chips to avoid the problem. */ #define FEAT_NOCONF BIT(19) /* Chip conf mode enabled on startup */ #define FEAT_FOUR_FANS BIT(20) /* Supports four fans */ #define FEAT_FOUR_PWM BIT(21) /* Supports four fan controls */ #define FEAT_FOUR_TEMP BIT(22) #define FEAT_FANCTL_ONOFF BIT(23) /* chip has FAN_CTL ON/OFF */ static const struct it87_devices it87_devices[] = { [it87] = { .name = "it87", .model = "IT87F", .features = FEAT_OLD_AUTOPWM | FEAT_FANCTL_ONOFF, /* may need to overwrite */ }, [it8712] = { .name = "it8712", .model = "IT8712F", .features = FEAT_OLD_AUTOPWM | FEAT_VID | FEAT_FANCTL_ONOFF, /* may need to overwrite */ }, [it8716] = { .name = "it8716", .model = "IT8716F", .features = FEAT_16BIT_FANS | FEAT_TEMP_OFFSET | FEAT_VID | FEAT_FAN16_CONFIG | FEAT_FIVE_FANS | FEAT_PWM_FREQ2 | FEAT_FANCTL_ONOFF, }, [it8718] = { .name = "it8718", .model = "IT8718F", .features = FEAT_16BIT_FANS | FEAT_TEMP_OFFSET | FEAT_VID | FEAT_TEMP_OLD_PECI | FEAT_FAN16_CONFIG | FEAT_FIVE_FANS | FEAT_PWM_FREQ2 | FEAT_FANCTL_ONOFF, .old_peci_mask = 0x4, }, [it8720] = { .name = "it8720", .model = "IT8720F", .features = FEAT_16BIT_FANS | FEAT_TEMP_OFFSET | FEAT_VID | FEAT_TEMP_OLD_PECI | FEAT_FAN16_CONFIG | FEAT_FIVE_FANS | FEAT_PWM_FREQ2 | FEAT_FANCTL_ONOFF, .old_peci_mask = 0x4, }, [it8721] = { .name = "it8721", .model = "IT8721F", .features = FEAT_NEWER_AUTOPWM | FEAT_12MV_ADC | FEAT_16BIT_FANS | FEAT_TEMP_OFFSET | FEAT_TEMP_OLD_PECI | FEAT_TEMP_PECI | FEAT_FAN16_CONFIG | FEAT_FIVE_FANS | FEAT_IN7_INTERNAL | FEAT_PWM_FREQ2 | FEAT_FANCTL_ONOFF, .peci_mask = 0x05, .old_peci_mask = 0x02, /* Actually reports PCH */ }, [it8728] = { .name = "it8728", .model = "IT8728F", .features = FEAT_NEWER_AUTOPWM | FEAT_12MV_ADC | FEAT_16BIT_FANS | FEAT_TEMP_OFFSET | FEAT_TEMP_PECI | FEAT_FIVE_FANS | FEAT_IN7_INTERNAL | FEAT_PWM_FREQ2 | FEAT_FANCTL_ONOFF, .peci_mask = 0x07, }, [it8732] = { .name = "it8732", .model = "IT8732F", .features = FEAT_NEWER_AUTOPWM | FEAT_16BIT_FANS | FEAT_TEMP_OFFSET | FEAT_TEMP_OLD_PECI | FEAT_TEMP_PECI | FEAT_10_9MV_ADC | FEAT_IN7_INTERNAL | FEAT_FOUR_FANS | FEAT_FOUR_PWM | FEAT_FANCTL_ONOFF, .peci_mask = 0x07, .old_peci_mask = 0x02, /* Actually reports PCH */ }, [it8771] = { .name = "it8771", .model = "IT8771E", .features = FEAT_NEWER_AUTOPWM | FEAT_12MV_ADC | FEAT_16BIT_FANS | FEAT_TEMP_OFFSET | FEAT_TEMP_PECI | FEAT_IN7_INTERNAL | FEAT_PWM_FREQ2 | FEAT_FANCTL_ONOFF, /* PECI: guesswork */ /* 12mV ADC (OHM) */ /* 16 bit fans (OHM) */ /* three fans, always 16 bit (guesswork) */ .peci_mask = 0x07, }, [it8772] = { .name = "it8772", .model = "IT8772E", .features = FEAT_NEWER_AUTOPWM | FEAT_12MV_ADC | FEAT_16BIT_FANS | FEAT_TEMP_OFFSET | FEAT_TEMP_PECI | FEAT_IN7_INTERNAL | FEAT_PWM_FREQ2 | FEAT_FANCTL_ONOFF, /* PECI (coreboot) */ /* 12mV ADC (HWSensors4, OHM) */ /* 16 bit fans (HWSensors4, OHM) */ /* three fans, always 16 bit (datasheet) */ .peci_mask = 0x07, }, [it8781] = { .name = "it8781", .model = "IT8781F", .features = FEAT_16BIT_FANS | FEAT_TEMP_OFFSET | FEAT_TEMP_OLD_PECI | FEAT_FAN16_CONFIG | FEAT_PWM_FREQ2 | FEAT_FANCTL_ONOFF, .old_peci_mask = 0x4, }, [it8782] = { .name = "it8782", .model = "IT8782F", .features = FEAT_16BIT_FANS | FEAT_TEMP_OFFSET | FEAT_TEMP_OLD_PECI | FEAT_FAN16_CONFIG | FEAT_PWM_FREQ2 | FEAT_FANCTL_ONOFF, .old_peci_mask = 0x4, }, [it8783] = { .name = "it8783", .model = "IT8783E/F", .features = FEAT_16BIT_FANS | FEAT_TEMP_OFFSET | FEAT_TEMP_OLD_PECI | FEAT_FAN16_CONFIG | FEAT_PWM_FREQ2 | FEAT_FANCTL_ONOFF, .old_peci_mask = 0x4, }, [it8786] = { .name = "it8786", .model = "IT8786E", .features = FEAT_NEWER_AUTOPWM | FEAT_12MV_ADC | FEAT_16BIT_FANS | FEAT_TEMP_OFFSET | FEAT_TEMP_PECI | FEAT_IN7_INTERNAL | FEAT_PWM_FREQ2 | FEAT_FANCTL_ONOFF, .peci_mask = 0x07, }, [it8790] = { .name = "it8790", .model = "IT8790E", .features = FEAT_NEWER_AUTOPWM | FEAT_12MV_ADC | FEAT_16BIT_FANS | FEAT_TEMP_OFFSET | FEAT_TEMP_PECI | FEAT_IN7_INTERNAL | FEAT_PWM_FREQ2 | FEAT_FANCTL_ONOFF | FEAT_NOCONF, .peci_mask = 0x07, }, [it8792] = { .name = "it8792", .model = "IT8792E/IT8795E", .features = FEAT_NEWER_AUTOPWM | FEAT_16BIT_FANS | FEAT_TEMP_OFFSET | FEAT_TEMP_OLD_PECI | FEAT_TEMP_PECI | FEAT_10_9MV_ADC | FEAT_IN7_INTERNAL | FEAT_FANCTL_ONOFF | FEAT_NOCONF, .peci_mask = 0x07, .old_peci_mask = 0x02, /* Actually reports PCH */ }, [it8603] = { .name = "it8603", .model = "IT8603E", .features = FEAT_NEWER_AUTOPWM | FEAT_12MV_ADC | FEAT_16BIT_FANS | FEAT_TEMP_OFFSET | FEAT_TEMP_PECI | FEAT_IN7_INTERNAL | FEAT_AVCC3 | FEAT_PWM_FREQ2, .peci_mask = 0x07, }, [it8620] = { .name = "it8620", .model = "IT8620E", .features = FEAT_NEWER_AUTOPWM | FEAT_12MV_ADC | FEAT_16BIT_FANS | FEAT_TEMP_OFFSET | FEAT_TEMP_PECI | FEAT_SIX_FANS | FEAT_IN7_INTERNAL | FEAT_SIX_PWM | FEAT_PWM_FREQ2 | FEAT_SIX_TEMP | FEAT_VIN3_5V | FEAT_FANCTL_ONOFF, .peci_mask = 0x07, }, [it8622] = { .name = "it8622", .model = "IT8622E", .features = FEAT_NEWER_AUTOPWM | FEAT_12MV_ADC | FEAT_16BIT_FANS | FEAT_TEMP_OFFSET | FEAT_TEMP_PECI | FEAT_FIVE_FANS | FEAT_FIVE_PWM | FEAT_IN7_INTERNAL | FEAT_PWM_FREQ2 | FEAT_AVCC3 | FEAT_VIN3_5V | FEAT_FOUR_TEMP, .peci_mask = 0x07, .smbus_bitmap = BIT(1) | BIT(2), }, [it8628] = { .name = "it8628", .model = "IT8628E", .features = FEAT_NEWER_AUTOPWM | FEAT_12MV_ADC | FEAT_16BIT_FANS | FEAT_TEMP_OFFSET | FEAT_TEMP_PECI | FEAT_SIX_FANS | FEAT_IN7_INTERNAL | FEAT_SIX_PWM | FEAT_PWM_FREQ2 | FEAT_SIX_TEMP | FEAT_VIN3_5V | FEAT_FANCTL_ONOFF, .peci_mask = 0x07, }, [it87952] = { .name = "it87952", .model = "IT87952E", .features = FEAT_NEWER_AUTOPWM | FEAT_16BIT_FANS | FEAT_TEMP_OFFSET | FEAT_TEMP_OLD_PECI | FEAT_TEMP_PECI | FEAT_10_9MV_ADC | FEAT_IN7_INTERNAL | FEAT_FANCTL_ONOFF | FEAT_NOCONF, .peci_mask = 0x07, .old_peci_mask = 0x02, /* Actually reports PCH */ }, }; #define has_16bit_fans(data) ((data)->features & FEAT_16BIT_FANS) #define has_12mv_adc(data) ((data)->features & FEAT_12MV_ADC) #define has_10_9mv_adc(data) ((data)->features & FEAT_10_9MV_ADC) #define has_newer_autopwm(data) ((data)->features & FEAT_NEWER_AUTOPWM) #define has_old_autopwm(data) ((data)->features & FEAT_OLD_AUTOPWM) #define has_temp_offset(data) ((data)->features & FEAT_TEMP_OFFSET) #define has_temp_peci(data, nr) (((data)->features & FEAT_TEMP_PECI) && \ ((data)->peci_mask & BIT(nr))) #define has_temp_old_peci(data, nr) \ (((data)->features & FEAT_TEMP_OLD_PECI) && \ ((data)->old_peci_mask & BIT(nr))) #define has_fan16_config(data) ((data)->features & FEAT_FAN16_CONFIG) #define has_four_fans(data) ((data)->features & (FEAT_FOUR_FANS | \ FEAT_FIVE_FANS | \ FEAT_SIX_FANS)) #define has_five_fans(data) ((data)->features & (FEAT_FIVE_FANS | \ FEAT_SIX_FANS)) #define has_six_fans(data) ((data)->features & FEAT_SIX_FANS) #define has_vid(data) ((data)->features & FEAT_VID) #define has_in7_internal(data) ((data)->features & FEAT_IN7_INTERNAL) #define has_avcc3(data) ((data)->features & FEAT_AVCC3) #define has_four_pwm(data) ((data)->features & (FEAT_FOUR_PWM | \ FEAT_FIVE_PWM | \ FEAT_SIX_PWM)) #define has_five_pwm(data) ((data)->features & (FEAT_FIVE_PWM | \ FEAT_SIX_PWM)) #define has_six_pwm(data) ((data)->features & FEAT_SIX_PWM) #define has_pwm_freq2(data) ((data)->features & FEAT_PWM_FREQ2) #define has_four_temp(data) ((data)->features & FEAT_FOUR_TEMP) #define has_six_temp(data) ((data)->features & FEAT_SIX_TEMP) #define has_vin3_5v(data) ((data)->features & FEAT_VIN3_5V) #define has_noconf(data) ((data)->features & FEAT_NOCONF) #define has_scaling(data) ((data)->features & (FEAT_12MV_ADC | \ FEAT_10_9MV_ADC)) #define has_fanctl_onoff(data) ((data)->features & FEAT_FANCTL_ONOFF) struct it87_sio_data { int sioaddr; enum chips type; /* Values read from Super-I/O config space */ u8 revision; u8 vid_value; u8 beep_pin; u8 internal; /* Internal sensors can be labeled */ bool need_in7_reroute; /* Features skipped based on config or DMI */ u16 skip_in; u8 skip_vid; u8 skip_fan; u8 skip_pwm; u8 skip_temp; u8 smbus_bitmap; u8 ec_special_config; }; /* * For each registered chip, we need to keep some data in memory. * The structure is dynamically allocated. */ struct it87_data { const struct attribute_group *groups[7]; int sioaddr; enum chips type; u32 features; u8 peci_mask; u8 old_peci_mask; u8 smbus_bitmap; /* !=0 if SMBus needs to be disabled */ u8 ec_special_config; /* EC special config register restore value */ unsigned short addr; const char *name; struct mutex update_lock; bool valid; /* true if following fields are valid */ unsigned long last_updated; /* In jiffies */ u16 in_scaled; /* Internal voltage sensors are scaled */ u16 in_internal; /* Bitfield, internal sensors (for labels) */ u16 has_in; /* Bitfield, voltage sensors enabled */ u8 in[NUM_VIN][3]; /* [nr][0]=in, [1]=min, [2]=max */ bool need_in7_reroute; u8 has_fan; /* Bitfield, fans enabled */ u16 fan[NUM_FAN][2]; /* Register values, [nr][0]=fan, [1]=min */ u8 has_temp; /* Bitfield, temp sensors enabled */ s8 temp[NUM_TEMP][4]; /* [nr][0]=temp, [1]=min, [2]=max, [3]=offset */ u8 sensor; /* Register value (IT87_REG_TEMP_ENABLE) */ u8 extra; /* Register value (IT87_REG_TEMP_EXTRA) */ u8 fan_div[NUM_FAN_DIV];/* Register encoding, shifted right */ bool has_vid; /* True if VID supported */ u8 vid; /* Register encoding, combined */ u8 vrm; u32 alarms; /* Register encoding, combined */ bool has_beep; /* true if beep supported */ u8 beeps; /* Register encoding */ u8 fan_main_ctrl; /* Register value */ u8 fan_ctl; /* Register value */ /* * The following 3 arrays correspond to the same registers up to * the IT8720F. The meaning of bits 6-0 depends on the value of bit * 7, and we want to preserve settings on mode changes, so we have * to track all values separately. * Starting with the IT8721F, the manual PWM duty cycles are stored * in separate registers (8-bit values), so the separate tracking * is no longer needed, but it is still done to keep the driver * simple. */ u8 has_pwm; /* Bitfield, pwm control enabled */ u8 pwm_ctrl[NUM_PWM]; /* Register value */ u8 pwm_duty[NUM_PWM]; /* Manual PWM value set by user */ u8 pwm_temp_map[NUM_PWM];/* PWM to temp. chan. mapping (bits 1-0) */ /* Automatic fan speed control registers */ u8 auto_pwm[NUM_AUTO_PWM][4]; /* [nr][3] is hard-coded */ s8 auto_temp[NUM_AUTO_PWM][5]; /* [nr][0] is point1_temp_hyst */ }; /* Board specific settings from DMI matching */ struct it87_dmi_data { u8 skip_pwm; /* pwm channels to skip for this board */ }; /* Global for results from DMI matching, if needed */ static struct it87_dmi_data *dmi_data; static int adc_lsb(const struct it87_data *data, int nr) { int lsb; if (has_12mv_adc(data)) lsb = 120; else if (has_10_9mv_adc(data)) lsb = 109; else lsb = 160; if (data->in_scaled & BIT(nr)) lsb <<= 1; return lsb; } static u8 in_to_reg(const struct it87_data *data, int nr, long val) { val = DIV_ROUND_CLOSEST(val * 10, adc_lsb(data, nr)); return clamp_val(val, 0, 255); } static int in_from_reg(const struct it87_data *data, int nr, int val) { return DIV_ROUND_CLOSEST(val * adc_lsb(data, nr), 10); } static inline u8 FAN_TO_REG(long rpm, int div) { if (rpm == 0) return 255; rpm = clamp_val(rpm, 1, 1000000); return clamp_val((1350000 + rpm * div / 2) / (rpm * div), 1, 254); } static inline u16 FAN16_TO_REG(long rpm) { if (rpm == 0) return 0xffff; return clamp_val((1350000 + rpm) / (rpm * 2), 1, 0xfffe); } #define FAN_FROM_REG(val, div) ((val) == 0 ? -1 : (val) == 255 ? 0 : \ 1350000 / ((val) * (div))) /* The divider is fixed to 2 in 16-bit mode */ #define FAN16_FROM_REG(val) ((val) == 0 ? -1 : (val) == 0xffff ? 0 : \ 1350000 / ((val) * 2)) #define TEMP_TO_REG(val) (clamp_val(((val) < 0 ? (((val) - 500) / 1000) : \ ((val) + 500) / 1000), -128, 127)) #define TEMP_FROM_REG(val) ((val) * 1000) static u8 pwm_to_reg(const struct it87_data *data, long val) { 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) BIT(val) /* * PWM base frequencies. The frequency has to be divided by either 128 or 256, * depending on the chip type, to calculate the actual PWM frequency. * * Some of the chip datasheets suggest a base frequency of 51 kHz instead * of 750 kHz for the slowest base frequency, resulting in a PWM frequency * of 200 Hz. Sometimes both PWM frequency select registers are affected, * sometimes just one. It is unknown if this is a datasheet error or real, * so this is ignored for now. */ static const unsigned int pwm_freq[8] = { 48000000, 24000000, 12000000, 8000000, 6000000, 3000000, 1500000, 750000, }; static int smbus_disable(struct it87_data *data) { int err; if (data->smbus_bitmap) { err = superio_enter(data->sioaddr, has_noconf(data)); if (err) return err; superio_select(data->sioaddr, PME); superio_outb(data->sioaddr, IT87_SPECIAL_CFG_REG, data->ec_special_config & ~data->smbus_bitmap); superio_exit(data->sioaddr, has_noconf(data)); } return 0; } static int smbus_enable(struct it87_data *data) { int err; if (data->smbus_bitmap) { err = superio_enter(data->sioaddr, has_noconf(data)); if (err) return err; superio_select(data->sioaddr, PME); superio_outb(data->sioaddr, IT87_SPECIAL_CFG_REG, data->ec_special_config); superio_exit(data->sioaddr, has_noconf(data)); } return 0; } /* * Must be called with data->update_lock held, except during initialization. * Must be called with SMBus accesses disabled. * 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. * Must be called with SMBus accesses disabled. * 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); } 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)); } else if (has_newer_autopwm(data)) { int i; /* * 0: temperature hysteresis (base + 5) * 1: fan off temperature (base + 0) * 2: fan start temperature (base + 1) * 3: fan max temperature (base + 2) */ data->auto_temp[nr][0] = it87_read_value(data, IT87_REG_AUTO_TEMP(nr, 5)); for (i = 0; i < 3 ; i++) data->auto_temp[nr][i + 1] = it87_read_value(data, IT87_REG_AUTO_TEMP(nr, i)); /* * 0: start pwm value (base + 3) * 1: pwm slope (base + 4, 1/8th pwm) */ data->auto_pwm[nr][0] = it87_read_value(data, IT87_REG_AUTO_TEMP(nr, 3)); data->auto_pwm[nr][1] = it87_read_value(data, IT87_REG_AUTO_TEMP(nr, 4)); } } static int it87_lock(struct it87_data *data) { int err; mutex_lock(&data->update_lock); err = smbus_disable(data); if (err) mutex_unlock(&data->update_lock); return err; } static void it87_unlock(struct it87_data *data) { smbus_enable(data); mutex_unlock(&data->update_lock); } static struct it87_data *it87_update_device(struct device *dev) { struct it87_data *data = dev_get_drvdata(dev); struct it87_data *ret = data; int err; int i; mutex_lock(&data->update_lock); if (time_after(jiffies, data->last_updated + HZ + HZ / 2) || !data->valid) { err = smbus_disable(data); if (err) { ret = ERR_PTR(err); goto unlock; } 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 < NUM_VIN; i++) { if (!(data->has_in & BIT(i))) continue; data->in[i][0] = it87_read_value(data, IT87_REG_VIN[i]); /* VBAT and AVCC don't have limit registers */ if (i >= NUM_VIN_LIMIT) continue; 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)); } for (i = 0; i < NUM_FAN; i++) { /* Skip disabled fans */ if (!(data->has_fan & BIT(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 < NUM_TEMP; i++) { if (!(data->has_temp & BIT(i))) continue; data->temp[i][0] = it87_read_value(data, IT87_REG_TEMP(i)); if (has_temp_offset(data) && i < NUM_TEMP_OFFSET) data->temp[i][3] = it87_read_value(data, IT87_REG_TEMP_OFFSET[i]); if (i >= NUM_TEMP_LIMIT) continue; 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)); } /* 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 < NUM_PWM; i++) { if (!(data->has_pwm & BIT(i))) continue; 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 = true; smbus_enable(data); } unlock: mutex_unlock(&data->update_lock); return ret; } 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); struct it87_data *data = it87_update_device(dev); int index = sattr->index; int nr = sattr->nr; if (IS_ERR(data)) return PTR_ERR(data); 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); struct it87_data *data = dev_get_drvdata(dev); int index = sattr->index; int nr = sattr->nr; unsigned long val; int err; if (kstrtoul(buf, 10, &val) < 0) return -EINVAL; err = it87_lock(data); if (err) return err; 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]); it87_unlock(data); 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); static SENSOR_DEVICE_ATTR_2(in9_input, S_IRUGO, show_in, NULL, 9, 0); static SENSOR_DEVICE_ATTR_2(in10_input, S_IRUGO, show_in, NULL, 10, 0); static SENSOR_DEVICE_ATTR_2(in11_input, S_IRUGO, show_in, NULL, 11, 0); static SENSOR_DEVICE_ATTR_2(in12_input, S_IRUGO, show_in, NULL, 12, 0); /* Up to 6 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); if (IS_ERR(data)) return PTR_ERR(data); 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; int err; if (kstrtol(buf, 10, &val) < 0) return -EINVAL; err = it87_lock(data); if (err) return err; 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 = false; reg = IT87_REG_TEMP_OFFSET[nr]; break; } data->temp[nr][index] = TEMP_TO_REG(val); it87_write_value(data, reg, data->temp[nr][index]); it87_unlock(data); 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 SENSOR_DEVICE_ATTR_2(temp4_input, S_IRUGO, show_temp, NULL, 3, 0); static SENSOR_DEVICE_ATTR_2(temp5_input, S_IRUGO, show_temp, NULL, 4, 0); static SENSOR_DEVICE_ATTR_2(temp6_input, S_IRUGO, show_temp, NULL, 5, 0); static int get_temp_type(struct it87_data *data, int index) { /* * 2 is deprecated; * 3 = thermal diode; * 4 = thermistor; * 5 = AMDTSI; * 6 = Intel PECI; * 0 = disabled */ u8 reg, extra; int ttype, type = 0; /* Detect PECI vs. AMDTSI */ ttype = 6; if ((has_temp_peci(data, index)) || data->type == it8721 || data->type == it8720) { extra = it87_read_value(data, IT87_REG_IFSEL); if ((extra & 0x70) == 0x40) ttype = 5; } reg = it87_read_value(data, IT87_REG_TEMP_ENABLE); /* Per chip special detection */ switch (data->type) { case it8622: if (!(reg & 0xc0) && index == 3) type = ttype; break; default: break; } if (type || index >= 3) return type; extra = it87_read_value(data, IT87_REG_TEMP_EXTRA); if ((has_temp_peci(data, index) && (reg >> 6 == index + 1)) || (has_temp_old_peci(data, index) && (extra & 0x80))) type = ttype; /* Intel PECI or AMDTSI */ else if (reg & BIT(index)) type = 3; /* thermal diode */ else if (reg & BIT(index + 3)) type = 4; /* thermistor */ return type; } 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); struct it87_data *data = it87_update_device(dev); if (IS_ERR(data)) return PTR_ERR(data); return sprintf(buf, "%d\n", get_temp_type(data, sensor_attr->index)); } 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; int err; if (kstrtol(buf, 10, &val) < 0) return -EINVAL; err = it87_lock(data); if (err) return err; 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) { count = -EINVAL; goto unlock; } 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 = false; /* Force cache refresh */ unlock: it87_unlock(data); 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); /* 6 Fans */ static int pwm_mode(const struct it87_data *data, int nr) { if (has_fanctl_onoff(data) && nr < 3 && !(data->fan_main_ctrl & BIT(nr))) return 0; /* Full speed */ if (data->pwm_ctrl[nr] & 0x80) return 2; /* Automatic mode */ if ((!has_fanctl_onoff(data) || nr >= 3) && data->pwm_duty[nr] == pwm_to_reg(data, 0xff)) return 0; /* Full speed */ return 1; /* Manual mode */ } 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); if (IS_ERR(data)) return PTR_ERR(data); 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); struct it87_data *data = it87_update_device(dev); int nr = sensor_attr->index; if (IS_ERR(data)) return PTR_ERR(data); return sprintf(buf, "%lu\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); struct it87_data *data = it87_update_device(dev); int nr = sensor_attr->index; if (IS_ERR(data)) return PTR_ERR(data); 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); struct it87_data *data = it87_update_device(dev); int nr = sensor_attr->index; if (IS_ERR(data)) return PTR_ERR(data); 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 sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); struct it87_data *data = it87_update_device(dev); int nr = sensor_attr->index; unsigned int freq; int index; if (IS_ERR(data)) return PTR_ERR(data); if (has_pwm_freq2(data) && nr == 1) index = (data->extra >> 4) & 0x07; else index = (data->fan_ctl >> 4) & 0x07; freq = pwm_freq[index] / (has_newer_autopwm(data) ? 256 : 128); return sprintf(buf, "%u\n", freq); } 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; int err; u8 reg; if (kstrtol(buf, 10, &val) < 0) return -EINVAL; err = it87_lock(data); if (err) return err; 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]); } it87_unlock(data); 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); struct it87_data *data = dev_get_drvdata(dev); int nr = sensor_attr->index; unsigned long val; int min, err; u8 old; if (kstrtoul(buf, 10, &val) < 0) return -EINVAL; err = it87_lock(data); if (err) return err; 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]); it87_unlock(data); 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; } } else if (has_newer_autopwm(data)) { for (i = 1; i < 3; i++) { if (data->auto_temp[nr][i] > data->auto_temp[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); struct it87_data *data = dev_get_drvdata(dev); int nr = sensor_attr->index; long val; int err; 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; } err = it87_lock(data); if (err) return err; if (val == 0) { if (nr < 3 && has_fanctl_onoff(data)) { 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 | BIT(nr)); /* set on/off mode */ data->fan_main_ctrl &= ~BIT(nr); it87_write_value(data, IT87_REG_FAN_MAIN_CTRL, data->fan_main_ctrl); } else { u8 ctrl; /* No on/off mode, set maximum pwm value */ data->pwm_duty[nr] = pwm_to_reg(data, 0xff); it87_write_value(data, IT87_REG_PWM_DUTY[nr], data->pwm_duty[nr]); /* and set manual mode */ if (has_newer_autopwm(data)) { ctrl = (data->pwm_ctrl[nr] & 0x7c) | data->pwm_temp_map[nr]; } else { ctrl = data->pwm_duty[nr]; } data->pwm_ctrl[nr] = ctrl; it87_write_value(data, IT87_REG_PWM[nr], ctrl); } } else { u8 ctrl; if (has_newer_autopwm(data)) { ctrl = (data->pwm_ctrl[nr] & 0x7c) | data->pwm_temp_map[nr]; if (val != 1) ctrl |= 0x80; } else { ctrl = (val == 1 ? data->pwm_duty[nr] : 0x80); } data->pwm_ctrl[nr] = ctrl; it87_write_value(data, IT87_REG_PWM[nr], ctrl); if (has_fanctl_onoff(data) && nr < 3) { /* set SmartGuardian mode */ data->fan_main_ctrl |= BIT(nr); it87_write_value(data, IT87_REG_FAN_MAIN_CTRL, data->fan_main_ctrl); } } it87_unlock(data); 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); struct it87_data *data = dev_get_drvdata(dev); int nr = sensor_attr->index; long val; int err; if (kstrtol(buf, 10, &val) < 0 || val < 0 || val > 255) return -EINVAL; err = it87_lock(data); if (err) return err; it87_update_pwm_ctrl(data, nr); 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) { count = -EBUSY; goto unlock; } 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]); } } unlock: it87_unlock(data); return count; } static ssize_t set_pwm_freq(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); struct it87_data *data = dev_get_drvdata(dev); int nr = sensor_attr->index; unsigned long val; int err; int i; if (kstrtoul(buf, 10, &val) < 0) return -EINVAL; val = clamp_val(val, 0, 1000000); val *= has_newer_autopwm(data) ? 256 : 128; /* Search for the nearest available frequency */ for (i = 0; i < 7; i++) { if (val > (pwm_freq[i] + pwm_freq[i + 1]) / 2) break; } err = it87_lock(data); if (err) return err; if (nr == 0) { 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); } else { data->extra = it87_read_value(data, IT87_REG_TEMP_EXTRA) & 0x8f; data->extra |= i << 4; it87_write_value(data, IT87_REG_TEMP_EXTRA, data->extra); } it87_unlock(data); 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); struct it87_data *data = it87_update_device(dev); int nr = sensor_attr->index; int map; if (IS_ERR(data)) return PTR_ERR(data); map = data->pwm_temp_map[nr]; if (map >= 3) map = 0; /* Should never happen */ if (nr >= 3) /* pwm channels 3..6 map to temp4..6 */ map += 3; return sprintf(buf, "%d\n", (int)BIT(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); struct it87_data *data = dev_get_drvdata(dev); int nr = sensor_attr->index; long val; int err; u8 reg; if (kstrtol(buf, 10, &val) < 0) return -EINVAL; if (nr >= 3) val -= 3; switch (val) { case BIT(0): reg = 0x00; break; case BIT(1): reg = 0x01; break; case BIT(2): reg = 0x02; break; default: return -EINVAL; } err = it87_lock(data); if (err) return err; it87_update_pwm_ctrl(data, nr); 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] = (data->pwm_ctrl[nr] & 0xfc) | data->pwm_temp_map[nr]; it87_write_value(data, IT87_REG_PWM[nr], data->pwm_ctrl[nr]); } it87_unlock(data); 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; if (IS_ERR(data)) return PTR_ERR(data); 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; int regaddr; long val; int err; if (kstrtol(buf, 10, &val) < 0 || val < 0 || val > 255) return -EINVAL; err = it87_lock(data); if (err) return err; data->auto_pwm[nr][point] = pwm_to_reg(data, val); if (has_newer_autopwm(data)) regaddr = IT87_REG_AUTO_TEMP(nr, 3); else regaddr = IT87_REG_AUTO_PWM(nr, point); it87_write_value(data, regaddr, data->auto_pwm[nr][point]); it87_unlock(data); return count; } static ssize_t show_auto_pwm_slope(struct device *dev, struct device_attribute *attr, char *buf) { struct it87_data *data = it87_update_device(dev); struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); int nr = sensor_attr->index; if (IS_ERR(data)) return PTR_ERR(data); return sprintf(buf, "%d\n", data->auto_pwm[nr][1] & 0x7f); } static ssize_t set_auto_pwm_slope(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 *sensor_attr = to_sensor_dev_attr(attr); int nr = sensor_attr->index; unsigned long val; int err; if (kstrtoul(buf, 10, &val) < 0 || val > 127) return -EINVAL; err = it87_lock(data); if (err) return err; data->auto_pwm[nr][1] = (data->auto_pwm[nr][1] & 0x80) | val; it87_write_value(data, IT87_REG_AUTO_TEMP(nr, 4), data->auto_pwm[nr][1]); it87_unlock(data); 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; int reg; if (IS_ERR(data)) return PTR_ERR(data); if (has_old_autopwm(data) || point) reg = data->auto_temp[nr][point]; else reg = data->auto_temp[nr][1] - (data->auto_temp[nr][0] & 0x1f); return sprintf(buf, "%d\n", TEMP_FROM_REG(reg)); } 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; int reg; int err; if (kstrtol(buf, 10, &val) < 0 || val < -128000 || val > 127000) return -EINVAL; err = it87_lock(data); if (err) return err; if (has_newer_autopwm(data) && !point) { reg = data->auto_temp[nr][1] - TEMP_TO_REG(val); reg = clamp_val(reg, 0, 0x1f) | (data->auto_temp[nr][0] & 0xe0); data->auto_temp[nr][0] = reg; it87_write_value(data, IT87_REG_AUTO_TEMP(nr, 5), reg); } else { reg = TEMP_TO_REG(val); data->auto_temp[nr][point] = reg; if (has_newer_autopwm(data)) point--; it87_write_value(data, IT87_REG_AUTO_TEMP(nr, point), reg); } it87_unlock(data); 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_2(fan6_input, S_IRUGO, show_fan, NULL, 5, 0); static SENSOR_DEVICE_ATTR_2(fan6_min, S_IRUGO | S_IWUSR, show_fan, set_fan, 5, 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 SENSOR_DEVICE_ATTR(pwm1_freq, S_IRUGO | S_IWUSR, show_pwm_freq, set_pwm_freq, 0); static SENSOR_DEVICE_ATTR(pwm1_auto_channels_temp, S_IRUGO, 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_2(pwm1_auto_start, S_IRUGO | S_IWUSR, show_auto_pwm, set_auto_pwm, 0, 0); static SENSOR_DEVICE_ATTR(pwm1_auto_slope, S_IRUGO | S_IWUSR, show_auto_pwm_slope, set_auto_pwm_slope, 0); 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 SENSOR_DEVICE_ATTR(pwm2_freq, S_IRUGO, show_pwm_freq, set_pwm_freq, 1); static SENSOR_DEVICE_ATTR(pwm2_auto_channels_temp, S_IRUGO, 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_2(pwm2_auto_start, S_IRUGO | S_IWUSR, show_auto_pwm, set_auto_pwm, 1, 0); static SENSOR_DEVICE_ATTR(pwm2_auto_slope, S_IRUGO | S_IWUSR, show_auto_pwm_slope, set_auto_pwm_slope, 1); 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 SENSOR_DEVICE_ATTR(pwm3_freq, S_IRUGO, show_pwm_freq, NULL, 2); static SENSOR_DEVICE_ATTR(pwm3_auto_channels_temp, S_IRUGO, 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); static SENSOR_DEVICE_ATTR_2(pwm3_auto_start, S_IRUGO | S_IWUSR, show_auto_pwm, set_auto_pwm, 2, 0); static SENSOR_DEVICE_ATTR(pwm3_auto_slope, S_IRUGO | S_IWUSR, show_auto_pwm_slope, set_auto_pwm_slope, 2); static SENSOR_DEVICE_ATTR(pwm4_enable, S_IRUGO | S_IWUSR, show_pwm_enable, set_pwm_enable, 3); static SENSOR_DEVICE_ATTR(pwm4, S_IRUGO | S_IWUSR, show_pwm, set_pwm, 3); static SENSOR_DEVICE_ATTR(pwm4_freq, S_IRUGO, show_pwm_freq, NULL, 3); static SENSOR_DEVICE_ATTR(pwm4_auto_channels_temp, S_IRUGO, show_pwm_temp_map, set_pwm_temp_map, 3); static SENSOR_DEVICE_ATTR_2(pwm4_auto_point1_temp, S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, 2, 1); static SENSOR_DEVICE_ATTR_2(pwm4_auto_point1_temp_hyst, S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, 2, 0); static SENSOR_DEVICE_ATTR_2(pwm4_auto_point2_temp, S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, 2, 2); static SENSOR_DEVICE_ATTR_2(pwm4_auto_point3_temp, S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, 2, 3); static SENSOR_DEVICE_ATTR_2(pwm4_auto_start, S_IRUGO | S_IWUSR, show_auto_pwm, set_auto_pwm, 3, 0); static SENSOR_DEVICE_ATTR(pwm4_auto_slope, S_IRUGO | S_IWUSR, show_auto_pwm_slope, set_auto_pwm_slope, 3); static SENSOR_DEVICE_ATTR(pwm5_enable, S_IRUGO | S_IWUSR, show_pwm_enable, set_pwm_enable, 4); static SENSOR_DEVICE_ATTR(pwm5, S_IRUGO | S_IWUSR, show_pwm, set_pwm, 4); static SENSOR_DEVICE_ATTR(pwm5_freq, S_IRUGO, show_pwm_freq, NULL, 4); static SENSOR_DEVICE_ATTR(pwm5_auto_channels_temp, S_IRUGO, show_pwm_temp_map, set_pwm_temp_map, 4); static SENSOR_DEVICE_ATTR_2(pwm5_auto_point1_temp, S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, 2, 1); static SENSOR_DEVICE_ATTR_2(pwm5_auto_point1_temp_hyst, S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, 2, 0); static SENSOR_DEVICE_ATTR_2(pwm5_auto_point2_temp, S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, 2, 2); static SENSOR_DEVICE_ATTR_2(pwm5_auto_point3_temp, S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, 2, 3); static SENSOR_DEVICE_ATTR_2(pwm5_auto_start, S_IRUGO | S_IWUSR, show_auto_pwm, set_auto_pwm, 4, 0); static SENSOR_DEVICE_ATTR(pwm5_auto_slope, S_IRUGO | S_IWUSR, show_auto_pwm_slope, set_auto_pwm_slope, 4); static SENSOR_DEVICE_ATTR(pwm6_enable, S_IRUGO | S_IWUSR, show_pwm_enable, set_pwm_enable, 5); static SENSOR_DEVICE_ATTR(pwm6, S_IRUGO | S_IWUSR, show_pwm, set_pwm, 5); static SENSOR_DEVICE_ATTR(pwm6_freq, S_IRUGO, show_pwm_freq, NULL, 5); static SENSOR_DEVICE_ATTR(pwm6_auto_channels_temp, S_IRUGO, show_pwm_temp_map, set_pwm_temp_map, 5); static SENSOR_DEVICE_ATTR_2(pwm6_auto_point1_temp, S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, 2, 1); static SENSOR_DEVICE_ATTR_2(pwm6_auto_point1_temp_hyst, S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, 2, 0); static SENSOR_DEVICE_ATTR_2(pwm6_auto_point2_temp, S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, 2, 2); static SENSOR_DEVICE_ATTR_2(pwm6_auto_point3_temp, S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, 2, 3); static SENSOR_DEVICE_ATTR_2(pwm6_auto_start, S_IRUGO | S_IWUSR, show_auto_pwm, set_auto_pwm, 5, 0); static SENSOR_DEVICE_ATTR(pwm6_auto_slope, S_IRUGO | S_IWUSR, show_auto_pwm_slope, set_auto_pwm_slope, 5); /* Alarms */ static ssize_t alarms_show(struct device *dev, struct device_attribute *attr, char *buf) { struct it87_data *data = it87_update_device(dev); if (IS_ERR(data)) return PTR_ERR(data); return sprintf(buf, "%u\n", data->alarms); } static DEVICE_ATTR_RO(alarms); static ssize_t show_alarm(struct device *dev, struct device_attribute *attr, char *buf) { struct it87_data *data = it87_update_device(dev); int bitnr = to_sensor_dev_attr(attr)->index; if (IS_ERR(data)) return PTR_ERR(data); 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); int err, config; long val; if (kstrtol(buf, 10, &val) < 0 || val != 0) return -EINVAL; err = it87_lock(data); if (err) return err; config = it87_read_value(data, IT87_REG_CONFIG); if (config < 0) { count = config; } else { config |= BIT(5); it87_write_value(data, IT87_REG_CONFIG, config); /* Invalidate cache to force re-read */ data->valid = false; } it87_unlock(data); 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(fan6_alarm, S_IRUGO, show_alarm, NULL, 7); 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) { struct it87_data *data = it87_update_device(dev); int bitnr = to_sensor_dev_attr(attr)->index; if (IS_ERR(data)) return PTR_ERR(data); 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; int err; if (kstrtol(buf, 10, &val) < 0 || (val != 0 && val != 1)) return -EINVAL; err = it87_lock(data); if (err) return err; data->beeps = it87_read_value(data, IT87_REG_BEEP_ENABLE); if (val) data->beeps |= BIT(bitnr); else data->beeps &= ~BIT(bitnr); it87_write_value(data, IT87_REG_BEEP_ENABLE, data->beeps); it87_unlock(data); 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(fan6_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 vrm_show(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 vrm_store(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_RW(vrm); static ssize_t cpu0_vid_show(struct device *dev, struct device_attribute *attr, char *buf) { struct it87_data *data = it87_update_device(dev); if (IS_ERR(data)) return PTR_ERR(data); return sprintf(buf, "%ld\n", (long)vid_from_reg(data->vid, data->vrm)); } static DEVICE_ATTR_RO(cpu0_vid); static ssize_t show_label(struct device *dev, struct device_attribute *attr, char *buf) { static const char * const labels[] = { "+5V", "5VSB", "Vbat", "AVCC", }; static const char * const labels_it8721[] = { "+3.3V", "3VSB", "Vbat", "+3.3V", }; struct it87_data *data = dev_get_drvdata(dev); int nr = to_sensor_dev_attr(attr)->index; const char *label; if (has_vin3_5v(data) && nr == 0) label = labels[0]; else if (has_scaling(data)) label = labels_it8721[nr]; else label = labels[nr]; return sprintf(buf, "%s\n", label); } 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); /* AVCC3 */ static SENSOR_DEVICE_ATTR(in9_label, S_IRUGO, show_label, NULL, 3); static umode_t it87_in_is_visible(struct kobject *kobj, struct attribute *attr, int index) { struct device *dev = kobj_to_dev(kobj); struct it87_data *data = dev_get_drvdata(dev); int i = index / 5; /* voltage index */ int a = index % 5; /* attribute index */ if (index >= 40) { /* in8 and higher only have input attributes */ i = index - 40 + 8; a = 0; } if (!(data->has_in & BIT(i))) return 0; if (a == 4 && !data->has_beep) return 0; return attr->mode; } static struct attribute *it87_attributes_in[] = { &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, &sensor_dev_attr_in0_beep.dev_attr.attr, /* 4 */ &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, &sensor_dev_attr_in1_beep.dev_attr.attr, /* 9 */ &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, &sensor_dev_attr_in2_beep.dev_attr.attr, /* 14 */ &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, &sensor_dev_attr_in3_beep.dev_attr.attr, /* 19 */ &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, &sensor_dev_attr_in4_beep.dev_attr.attr, /* 24 */ &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, &sensor_dev_attr_in5_beep.dev_attr.attr, /* 29 */ &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, &sensor_dev_attr_in6_beep.dev_attr.attr, /* 34 */ &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, &sensor_dev_attr_in7_beep.dev_attr.attr, /* 39 */ &sensor_dev_attr_in8_input.dev_attr.attr, /* 40 */ &sensor_dev_attr_in9_input.dev_attr.attr, &sensor_dev_attr_in10_input.dev_attr.attr, &sensor_dev_attr_in11_input.dev_attr.attr, &sensor_dev_attr_in12_input.dev_attr.attr, NULL }; static const struct attribute_group it87_group_in = { .attrs = it87_attributes_in, .is_visible = it87_in_is_visible, }; static umode_t it87_temp_is_visible(struct kobject *kobj, struct attribute *attr, int index) { struct device *dev = kobj_to_dev(kobj); struct it87_data *data = dev_get_drvdata(dev); int i = index / 7; /* temperature index */ int a = index % 7; /* attribute index */ if (index >= 21) { i = index - 21 + 3; a = 0; } if (!(data->has_temp & BIT(i))) return 0; if (a == 3) { if (get_temp_type(data, i) == 0) return 0; return attr->mode; } if (a == 5 && !has_temp_offset(data)) return 0; if (a == 6 && !data->has_beep) return 0; return attr->mode; } static struct attribute *it87_attributes_temp[] = { &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, &sensor_dev_attr_temp1_offset.dev_attr.attr, /* 5 */ &sensor_dev_attr_temp1_beep.dev_attr.attr, /* 6 */ &sensor_dev_attr_temp2_input.dev_attr.attr, /* 7 */ &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, &sensor_dev_attr_temp2_offset.dev_attr.attr, &sensor_dev_attr_temp2_beep.dev_attr.attr, &sensor_dev_attr_temp3_input.dev_attr.attr, /* 14 */ &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, &sensor_dev_attr_temp3_offset.dev_attr.attr, &sensor_dev_attr_temp3_beep.dev_attr.attr, &sensor_dev_attr_temp4_input.dev_attr.attr, /* 21 */ &sensor_dev_attr_temp5_input.dev_attr.attr, &sensor_dev_attr_temp6_input.dev_attr.attr, NULL }; static const struct attribute_group it87_group_temp = { .attrs = it87_attributes_temp, .is_visible = it87_temp_is_visible, }; static umode_t it87_is_visible(struct kobject *kobj, struct attribute *attr, int index) { struct device *dev = kobj_to_dev(kobj); struct it87_data *data = dev_get_drvdata(dev); if ((index == 2 || index == 3) && !data->has_vid) return 0; if (index > 3 && !(data->in_internal & BIT(index - 4))) return 0; return attr->mode; } static struct attribute *it87_attributes[] = { &dev_attr_alarms.attr, &sensor_dev_attr_intrusion0_alarm.dev_attr.attr, &dev_attr_vrm.attr, /* 2 */ &dev_attr_cpu0_vid.attr, /* 3 */ &sensor_dev_attr_in3_label.dev_attr.attr, /* 4 .. 7 */ &sensor_dev_attr_in7_label.dev_attr.attr, &sensor_dev_attr_in8_label.dev_attr.attr, &sensor_dev_attr_in9_label.dev_attr.attr, NULL }; static const struct attribute_group it87_group = { .attrs = it87_attributes, .is_visible = it87_is_visible, }; static umode_t it87_fan_is_visible(struct kobject *kobj, struct attribute *attr, int index) { struct device *dev = kobj_to_dev(kobj); struct it87_data *data = dev_get_drvdata(dev); int i = index / 5; /* fan index */ int a = index % 5; /* attribute index */ if (index >= 15) { /* fan 4..6 don't have divisor attributes */ i = (index - 15) / 4 + 3; a = (index - 15) % 4; } if (!(data->has_fan & BIT(i))) return 0; if (a == 3) { /* beep */ if (!data->has_beep) return 0; /* first fan beep attribute is writable */ if (i == __ffs(data->has_fan)) return attr->mode | S_IWUSR; } if (a == 4 && has_16bit_fans(data)) /* divisor */ return 0; return attr->mode; } static struct attribute *it87_attributes_fan[] = { &sensor_dev_attr_fan1_input.dev_attr.attr, &sensor_dev_attr_fan1_min.dev_attr.attr, &sensor_dev_attr_fan1_alarm.dev_attr.attr, &sensor_dev_attr_fan1_beep.dev_attr.attr, /* 3 */ &sensor_dev_attr_fan1_div.dev_attr.attr, /* 4 */ &sensor_dev_attr_fan2_input.dev_attr.attr, &sensor_dev_attr_fan2_min.dev_attr.attr, &sensor_dev_attr_fan2_alarm.dev_attr.attr, &sensor_dev_attr_fan2_beep.dev_attr.attr, &sensor_dev_attr_fan2_div.dev_attr.attr, /* 9 */ &sensor_dev_attr_fan3_input.dev_attr.attr, &sensor_dev_attr_fan3_min.dev_attr.attr, &sensor_dev_attr_fan3_alarm.dev_attr.attr, &sensor_dev_attr_fan3_beep.dev_attr.attr, &sensor_dev_attr_fan3_div.dev_attr.attr, /* 14 */ &sensor_dev_attr_fan4_input.dev_attr.attr, /* 15 */ &sensor_dev_attr_fan4_min.dev_attr.attr, &sensor_dev_attr_fan4_alarm.dev_attr.attr, &sensor_dev_attr_fan4_beep.dev_attr.attr, &sensor_dev_attr_fan5_input.dev_attr.attr, /* 19 */ &sensor_dev_attr_fan5_min.dev_attr.attr, &sensor_dev_attr_fan5_alarm.dev_attr.attr, &sensor_dev_attr_fan5_beep.dev_attr.attr, &sensor_dev_attr_fan6_input.dev_attr.attr, /* 23 */ &sensor_dev_attr_fan6_min.dev_attr.attr, &sensor_dev_attr_fan6_alarm.dev_attr.attr, &sensor_dev_attr_fan6_beep.dev_attr.attr, NULL }; static const struct attribute_group it87_group_fan = { .attrs = it87_attributes_fan, .is_visible = it87_fan_is_visible, }; static umode_t it87_pwm_is_visible(struct kobject *kobj, struct attribute *attr, int index) { struct device *dev = kobj_to_dev(kobj); struct it87_data *data = dev_get_drvdata(dev); int i = index / 4; /* pwm index */ int a = index % 4; /* attribute index */ if (!(data->has_pwm & BIT(i))) return 0; /* pwmX_auto_channels_temp is only writable if auto pwm is supported */ if (a == 3 && (has_old_autopwm(data) || has_newer_autopwm(data))) return attr->mode | S_IWUSR; /* pwm2_freq is writable if there are two pwm frequency selects */ if (has_pwm_freq2(data) && i == 1 && a == 2) return attr->mode | S_IWUSR; return attr->mode; } static struct attribute *it87_attributes_pwm[] = { &sensor_dev_attr_pwm1_enable.dev_attr.attr, &sensor_dev_attr_pwm1.dev_attr.attr, &sensor_dev_attr_pwm1_freq.dev_attr.attr, &sensor_dev_attr_pwm1_auto_channels_temp.dev_attr.attr, &sensor_dev_attr_pwm2_enable.dev_attr.attr, &sensor_dev_attr_pwm2.dev_attr.attr, &sensor_dev_attr_pwm2_freq.dev_attr.attr, &sensor_dev_attr_pwm2_auto_channels_temp.dev_attr.attr, &sensor_dev_attr_pwm3_enable.dev_attr.attr, &sensor_dev_attr_pwm3.dev_attr.attr, &sensor_dev_attr_pwm3_freq.dev_attr.attr, &sensor_dev_attr_pwm3_auto_channels_temp.dev_attr.attr, &sensor_dev_attr_pwm4_enable.dev_attr.attr, &sensor_dev_attr_pwm4.dev_attr.attr, &sensor_dev_attr_pwm4_freq.dev_attr.attr, &sensor_dev_attr_pwm4_auto_channels_temp.dev_attr.attr, &sensor_dev_attr_pwm5_enable.dev_attr.attr, &sensor_dev_attr_pwm5.dev_attr.attr, &sensor_dev_attr_pwm5_freq.dev_attr.attr, &sensor_dev_attr_pwm5_auto_channels_temp.dev_attr.attr, &sensor_dev_attr_pwm6_enable.dev_attr.attr, &sensor_dev_attr_pwm6.dev_attr.attr, &sensor_dev_attr_pwm6_freq.dev_attr.attr, &sensor_dev_attr_pwm6_auto_channels_temp.dev_attr.attr, NULL }; static const struct attribute_group it87_group_pwm = { .attrs = it87_attributes_pwm, .is_visible = it87_pwm_is_visible, }; static umode_t it87_auto_pwm_is_visible(struct kobject *kobj, struct attribute *attr, int index) { struct device *dev = kobj_to_dev(kobj); struct it87_data *data = dev_get_drvdata(dev); int i = index / 11; /* pwm index */ int a = index % 11; /* attribute index */ if (index >= 33) { /* pwm 4..6 */ i = (index - 33) / 6 + 3; a = (index - 33) % 6 + 4; } if (!(data->has_pwm & BIT(i))) return 0; if (has_newer_autopwm(data)) { if (a < 4) /* no auto point pwm */ return 0; if (a == 8) /* no auto_point4 */ return 0; } if (has_old_autopwm(data)) { if (a >= 9) /* no pwm_auto_start, pwm_auto_slope */ return 0; } return attr->mode; } static struct attribute *it87_attributes_auto_pwm[] = { &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, &sensor_dev_attr_pwm1_auto_start.dev_attr.attr, &sensor_dev_attr_pwm1_auto_slope.dev_attr.attr, &sensor_dev_attr_pwm2_auto_point1_pwm.dev_attr.attr, /* 11 */ &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, &sensor_dev_attr_pwm2_auto_start.dev_attr.attr, &sensor_dev_attr_pwm2_auto_slope.dev_attr.attr, &sensor_dev_attr_pwm3_auto_point1_pwm.dev_attr.attr, /* 22 */ &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, &sensor_dev_attr_pwm3_auto_start.dev_attr.attr, &sensor_dev_attr_pwm3_auto_slope.dev_attr.attr, &sensor_dev_attr_pwm4_auto_point1_temp.dev_attr.attr, /* 33 */ &sensor_dev_attr_pwm4_auto_point1_temp_hyst.dev_attr.attr, &sensor_dev_attr_pwm4_auto_point2_temp.dev_attr.attr, &sensor_dev_attr_pwm4_auto_point3_temp.dev_attr.attr, &sensor_dev_attr_pwm4_auto_start.dev_attr.attr, &sensor_dev_attr_pwm4_auto_slope.dev_attr.attr, &sensor_dev_attr_pwm5_auto_point1_temp.dev_attr.attr, &sensor_dev_attr_pwm5_auto_point1_temp_hyst.dev_attr.attr, &sensor_dev_attr_pwm5_auto_point2_temp.dev_attr.attr, &sensor_dev_attr_pwm5_auto_point3_temp.dev_attr.attr, &sensor_dev_attr_pwm5_auto_start.dev_attr.attr, &sensor_dev_attr_pwm5_auto_slope.dev_attr.attr, &sensor_dev_attr_pwm6_auto_point1_temp.dev_attr.attr, &sensor_dev_attr_pwm6_auto_point1_temp_hyst.dev_attr.attr, &sensor_dev_attr_pwm6_auto_point2_temp.dev_attr.attr, &sensor_dev_attr_pwm6_auto_point3_temp.dev_attr.attr, &sensor_dev_attr_pwm6_auto_start.dev_attr.attr, &sensor_dev_attr_pwm6_auto_slope.dev_attr.attr, NULL, }; static const struct attribute_group it87_group_auto_pwm = { .attrs = it87_attributes_auto_pwm, .is_visible = it87_auto_pwm_is_visible, }; /* * Original explanation: * On various Gigabyte AM4 boards (AB350, AX370), the second Super-IO chip * (IT8792E) needs to be in configuration mode before accessing the first * due to a bug in IT8792E which otherwise results in LPC bus access errors. * This needs to be done before accessing the first Super-IO chip since * the second chip may have been accessed prior to loading this driver. * * The problem is also reported to affect IT8795E, which is used on X299 boards * and has the same chip ID as IT8792E (0x8733). It also appears to affect * systems with IT8790E, which is used on some Z97X-Gaming boards as well as * Z87X-OC. * * From other information supplied: * ChipIDs 0x8733, 0x8695 (early ID for IT87952E) and 0x8790 are initialized * and left in configuration mode, and entering and/or exiting configuration * mode is what causes the crash. * * The recommendation is to look up the chipID before doing any mode swap * and then act accordingly. */ /* SuperIO detection - will change isa_address if a chip is found */ static int __init it87_find(int sioaddr, unsigned short *address, struct it87_sio_data *sio_data, int chip_cnt) { int err; u16 chip_type; const struct it87_devices *config = NULL; bool enabled = false; /* First step, lock memory but don't enter configuration mode */ err = superio_enter(sioaddr, true); if (err) return err; err = -ENODEV; chip_type = superio_inw(sioaddr, DEVID); /* Check for a valid chip before forcing chip id */ if (chip_type == 0xffff) { /* Enter configuration mode */ __superio_enter(sioaddr); enabled = true; /* and then try again */ chip_type = superio_inw(sioaddr, DEVID); if (chip_type == 0xffff) goto exit; } if (force_id_cnt == 1) { /* If only one value given use for all chips */ if (force_id[0]) chip_type = force_id[0]; } else if (force_id[chip_cnt]) chip_type = force_id[chip_cnt]; 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 IT8732F_DEVID: sio_data->type = it8732; break; case IT8792E_DEVID: sio_data->type = it8792; break; case IT8771E_DEVID: sio_data->type = it8771; break; case IT8772E_DEVID: sio_data->type = it8772; break; case IT8781F_DEVID: sio_data->type = it8781; break; case IT8782F_DEVID: sio_data->type = it8782; break; case IT8783E_DEVID: sio_data->type = it8783; break; case IT8786E_DEVID: sio_data->type = it8786; break; case IT8790E_DEVID: sio_data->type = it8790; break; case IT8603E_DEVID: case IT8623E_DEVID: sio_data->type = it8603; break; case IT8620E_DEVID: sio_data->type = it8620; break; case IT8622E_DEVID: sio_data->type = it8622; break; case IT8628E_DEVID: sio_data->type = it8628; break; case IT87952E_DEVID: sio_data->type = it87952; break; case 0xffff: /* No device at all */ goto exit; default: pr_debug("Unsupported chip (DEVID=0x%x)\n", chip_type); goto exit; } config = &it87_devices[sio_data->type]; /* * If previously we didn't enter configuration mode and it isn't a * chip we know is initialised in configuration mode, then enter * configuration mode. * * I don't know if any such chips can exist but be defensive. */ if (!enabled && !has_noconf(config)) { __superio_enter(sioaddr); enabled = true; } superio_select(sioaddr, PME); if (!(superio_inb(sioaddr, IT87_ACT_REG) & 0x01)) { pr_info("Device (chip %s ioreg 0x%x) not activated, skipping\n", config->model, sioaddr); goto exit; } *address = superio_inw(sioaddr, IT87_BASE_REG) & ~(IT87_EXTENT - 1); if (*address == 0) { pr_info("Base address not set (chip %s ioreg 0x%x), skipping\n", config->model, sioaddr); goto exit; } err = 0; sio_data->sioaddr = sioaddr; sio_data->revision = superio_inb(sioaddr, DEVREV) & 0x0f; pr_info("Found %s chip at 0x%x, revision %d\n", it87_devices[sio_data->type].model, *address, sio_data->revision); /* in7 (VSB or VCCH5V) is always internal on some chips */ if (has_in7_internal(config)) sio_data->internal |= BIT(1); /* in8 (Vbat) is always internal */ sio_data->internal |= BIT(2); /* in9 (AVCC3), always internal if supported */ if (has_avcc3(config)) sio_data->internal |= BIT(3); /* in9 is AVCC */ else sio_data->skip_in |= BIT(9); if (!has_four_pwm(config)) sio_data->skip_pwm |= BIT(3) | BIT(4) | BIT(5); else if (!has_five_pwm(config)) sio_data->skip_pwm |= BIT(4) | BIT(5); else if (!has_six_pwm(config)) sio_data->skip_pwm |= BIT(5); if (!has_vid(config)) sio_data->skip_vid = 1; /* Read GPIO config and VID value from LDN 7 (GPIO) */ if (sio_data->type == it87) { /* The IT8705F has a different LD number for GPIO */ superio_select(sioaddr, 5); sio_data->beep_pin = superio_inb(sioaddr, IT87_SIO_BEEP_PIN_REG) & 0x3f; } else if (sio_data->type == it8783) { int reg25, reg27, reg2a, reg2c, regef; superio_select(sioaddr, GPIO); reg25 = superio_inb(sioaddr, IT87_SIO_GPIO1_REG); reg27 = superio_inb(sioaddr, IT87_SIO_GPIO3_REG); reg2a = superio_inb(sioaddr, IT87_SIO_PINX1_REG); reg2c = superio_inb(sioaddr, IT87_SIO_PINX2_REG); regef = superio_inb(sioaddr, IT87_SIO_SPI_REG); /* Check if fan3 is there or not */ if ((reg27 & BIT(0)) || !(reg2c & BIT(2))) sio_data->skip_fan |= BIT(2); if ((reg25 & BIT(4)) || (!(reg2a & BIT(1)) && (regef & BIT(0)))) sio_data->skip_pwm |= BIT(2); /* Check if fan2 is there or not */ if (reg27 & BIT(7)) sio_data->skip_fan |= BIT(1); if (reg27 & BIT(3)) sio_data->skip_pwm |= BIT(1); /* VIN5 */ if ((reg27 & BIT(0)) || (reg2c & BIT(2))) sio_data->skip_in |= BIT(5); /* No VIN5 */ /* VIN6 */ if (reg27 & BIT(1)) sio_data->skip_in |= BIT(6); /* No VIN6 */ /* * VIN7 * Does not depend on bit 2 of Reg2C, contrary to datasheet. */ if (reg27 & BIT(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 & BIT(1))) { reg2c |= BIT(1); superio_outb(sioaddr, IT87_SIO_PINX2_REG, reg2c); sio_data->need_in7_reroute = true; 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 & BIT(0)) sio_data->internal |= BIT(0); if (reg2c & BIT(1)) sio_data->internal |= BIT(1); sio_data->beep_pin = superio_inb(sioaddr, IT87_SIO_BEEP_PIN_REG) & 0x3f; } else if (sio_data->type == it8603) { int reg27, reg29; superio_select(sioaddr, GPIO); reg27 = superio_inb(sioaddr, IT87_SIO_GPIO3_REG); /* Check if fan3 is there or not */ if (reg27 & BIT(6)) sio_data->skip_pwm |= BIT(2); if (reg27 & BIT(7)) sio_data->skip_fan |= BIT(2); /* Check if fan2 is there or not */ reg29 = superio_inb(sioaddr, IT87_SIO_GPIO5_REG); if (reg29 & BIT(1)) sio_data->skip_pwm |= BIT(1); if (reg29 & BIT(2)) sio_data->skip_fan |= BIT(1); sio_data->skip_in |= BIT(5); /* No VIN5 */ sio_data->skip_in |= BIT(6); /* No VIN6 */ sio_data->beep_pin = superio_inb(sioaddr, IT87_SIO_BEEP_PIN_REG) & 0x3f; } else if (sio_data->type == it8620 || sio_data->type == it8628) { int reg; superio_select(sioaddr, GPIO); /* Check for pwm5 */ reg = superio_inb(sioaddr, IT87_SIO_GPIO1_REG); if (reg & BIT(6)) sio_data->skip_pwm |= BIT(4); /* Check for fan4, fan5 */ reg = superio_inb(sioaddr, IT87_SIO_GPIO2_REG); if (!(reg & BIT(5))) sio_data->skip_fan |= BIT(3); if (!(reg & BIT(4))) sio_data->skip_fan |= BIT(4); /* Check for pwm3, fan3 */ reg = superio_inb(sioaddr, IT87_SIO_GPIO3_REG); if (reg & BIT(6)) sio_data->skip_pwm |= BIT(2); if (reg & BIT(7)) sio_data->skip_fan |= BIT(2); /* Check for pwm4 */ reg = superio_inb(sioaddr, IT87_SIO_GPIO4_REG); if (reg & BIT(2)) sio_data->skip_pwm |= BIT(3); /* Check for pwm2, fan2 */ reg = superio_inb(sioaddr, IT87_SIO_GPIO5_REG); if (reg & BIT(1)) sio_data->skip_pwm |= BIT(1); if (reg & BIT(2)) sio_data->skip_fan |= BIT(1); /* Check for pwm6, fan6 */ if (!(reg & BIT(7))) { sio_data->skip_pwm |= BIT(5); sio_data->skip_fan |= BIT(5); } /* Check if AVCC is on VIN3 */ reg = superio_inb(sioaddr, IT87_SIO_PINX2_REG); if (reg & BIT(0)) sio_data->internal |= BIT(0); else sio_data->skip_in |= BIT(9); sio_data->beep_pin = superio_inb(sioaddr, IT87_SIO_BEEP_PIN_REG) & 0x3f; } else if (sio_data->type == it8622) { int reg; superio_select(sioaddr, GPIO); /* Check for pwm4, fan4 */ reg = superio_inb(sioaddr, IT87_SIO_GPIO1_REG); if (reg & BIT(6)) sio_data->skip_fan |= BIT(3); if (reg & BIT(5)) sio_data->skip_pwm |= BIT(3); /* Check for pwm3, fan3, pwm5, fan5 */ reg = superio_inb(sioaddr, IT87_SIO_GPIO3_REG); if (reg & BIT(6)) sio_data->skip_pwm |= BIT(2); if (reg & BIT(7)) sio_data->skip_fan |= BIT(2); if (reg & BIT(3)) sio_data->skip_pwm |= BIT(4); if (reg & BIT(1)) sio_data->skip_fan |= BIT(4); /* Check for pwm2, fan2 */ reg = superio_inb(sioaddr, IT87_SIO_GPIO5_REG); if (reg & BIT(1)) sio_data->skip_pwm |= BIT(1); if (reg & BIT(2)) sio_data->skip_fan |= BIT(1); /* Check for AVCC */ reg = superio_inb(sioaddr, IT87_SIO_PINX2_REG); if (!(reg & BIT(0))) sio_data->skip_in |= BIT(9); sio_data->beep_pin = superio_inb(sioaddr, IT87_SIO_BEEP_PIN_REG) & 0x3f; } else if (sio_data->type == it8732) { int reg; superio_select(sioaddr, GPIO); /* Check for pwm2, fan2 */ reg = superio_inb(sioaddr, IT87_SIO_GPIO5_REG); if (reg & BIT(1)) sio_data->skip_pwm |= BIT(1); if (reg & BIT(2)) sio_data->skip_fan |= BIT(1); /* Check for pwm3, fan3, fan4 */ reg = superio_inb(sioaddr, IT87_SIO_GPIO3_REG); if (reg & BIT(6)) sio_data->skip_pwm |= BIT(2); if (reg & BIT(7)) sio_data->skip_fan |= BIT(2); if (reg & BIT(5)) sio_data->skip_fan |= BIT(3); /* Check if AVCC is on VIN3 */ reg = superio_inb(sioaddr, IT87_SIO_PINX2_REG); if (reg & BIT(0)) sio_data->internal |= BIT(0); sio_data->beep_pin = superio_inb(sioaddr, IT87_SIO_BEEP_PIN_REG) & 0x3f; } else { int reg; bool uart6; superio_select(sioaddr, GPIO); /* Check for fan4, fan5 */ if (has_five_fans(config)) { reg = superio_inb(sioaddr, IT87_SIO_GPIO2_REG); switch (sio_data->type) { case it8718: if (reg & BIT(5)) sio_data->skip_fan |= BIT(3); if (reg & BIT(4)) sio_data->skip_fan |= BIT(4); break; case it8720: case it8721: case it8728: if (!(reg & BIT(5))) sio_data->skip_fan |= BIT(3); if (!(reg & BIT(4))) sio_data->skip_fan |= BIT(4); break; default: break; } } reg = superio_inb(sioaddr, IT87_SIO_GPIO3_REG); if (!sio_data->skip_vid) { /* 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 & BIT(6)) sio_data->skip_pwm |= BIT(2); if (reg & BIT(7)) sio_data->skip_fan |= BIT(2); /* Check if fan2 is there or not */ reg = superio_inb(sioaddr, IT87_SIO_GPIO5_REG); if (reg & BIT(1)) sio_data->skip_pwm |= BIT(1); if (reg & BIT(2)) sio_data->skip_fan |= BIT(1); if ((sio_data->type == it8718 || sio_data->type == it8720) && !(sio_data->skip_vid)) sio_data->vid_value = superio_inb(sioaddr, IT87_SIO_VID_REG); reg = superio_inb(sioaddr, IT87_SIO_PINX2_REG); uart6 = sio_data->type == it8782 && (reg & BIT(2)); /* * The IT8720F has no VIN7 pin, so VCCH5V 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 VCCH5V 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 & BIT(1))) { reg |= BIT(1); superio_outb(sioaddr, IT87_SIO_PINX2_REG, reg); sio_data->need_in7_reroute = true; pr_notice("Routing internal VCCH5V to in7\n"); } if (reg & BIT(0)) sio_data->internal |= BIT(0); if (reg & BIT(1)) sio_data->internal |= BIT(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 |= BIT(5) | BIT(6); sio_data->skip_temp |= BIT(2); } sio_data->beep_pin = superio_inb(sioaddr, IT87_SIO_BEEP_PIN_REG) & 0x3f; } if (sio_data->beep_pin) pr_info("Beeping is supported\n"); /* Set values based on DMI matches */ if (dmi_data) sio_data->skip_pwm |= dmi_data->skip_pwm; if (config->smbus_bitmap) { u8 reg; superio_select(sioaddr, PME); reg = superio_inb(sioaddr, IT87_SPECIAL_CFG_REG); sio_data->ec_special_config = reg; sio_data->smbus_bitmap = reg & config->smbus_bitmap; } exit: superio_exit(sioaddr, !enabled); return err; } /* * 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. */ static void it87_check_limit_regs(struct it87_data *data) { int i, reg; for (i = 0; i < NUM_VIN_LIMIT; i++) { reg = it87_read_value(data, IT87_REG_VIN_MIN(i)); if (reg == 0xff) it87_write_value(data, IT87_REG_VIN_MIN(i), 0); } for (i = 0; i < NUM_TEMP_LIMIT; i++) { reg = it87_read_value(data, IT87_REG_TEMP_HIGH(i)); if (reg == 0xff) it87_write_value(data, IT87_REG_TEMP_HIGH(i), 127); } } /* Check if voltage monitors are reset manually or by some reason */ static void it87_check_voltage_monitors_reset(struct it87_data *data) { int reg; reg = it87_read_value(data, IT87_REG_VIN_ENABLE); if ((reg & 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 */ static void it87_check_tachometers_reset(struct platform_device *pdev) { struct it87_sio_data *sio_data = dev_get_platdata(&pdev->dev); struct it87_data *data = platform_get_drvdata(pdev); u8 mask, fan_main_ctrl; mask = 0x70 & ~(sio_data->skip_fan << 4); fan_main_ctrl = it87_read_value(data, IT87_REG_FAN_MAIN_CTRL); if ((fan_main_ctrl & mask) == 0) { /* Enable all fan tachometers */ fan_main_ctrl |= mask; it87_write_value(data, IT87_REG_FAN_MAIN_CTRL, fan_main_ctrl); } } /* Set tachometers to 16-bit mode if needed */ static void it87_check_tachometers_16bit_mode(struct platform_device *pdev) { struct it87_data *data = platform_get_drvdata(pdev); int reg; if (!has_fan16_config(data)) return; reg = it87_read_value(data, IT87_REG_FAN_16BIT); if (~reg & 0x07 & data->has_fan) { dev_dbg(&pdev->dev, "Setting fan1-3 to 16-bit mode\n"); it87_write_value(data, IT87_REG_FAN_16BIT, reg | 0x07); } } static void it87_start_monitoring(struct it87_data *data) { it87_write_value(data, IT87_REG_CONFIG, (it87_read_value(data, IT87_REG_CONFIG) & 0x3e) | (update_vbat ? 0x41 : 0x01)); } /* Called when we have found a new IT87. */ static void it87_init_device(struct platform_device *pdev) { struct it87_sio_data *sio_data = dev_get_platdata(&pdev->dev); struct it87_data *data = platform_get_drvdata(pdev); int tmp, i; /* * 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 < NUM_AUTO_PWM; i++) { data->pwm_temp_map[i] = i; data->pwm_duty[i] = 0x7f; /* Full speed */ data->auto_pwm[i][3] = 0x7f; /* Full speed, hard-coded */ } it87_check_limit_regs(data); /* * 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. */ it87_check_voltage_monitors_reset(data); it87_check_tachometers_reset(pdev); data->fan_main_ctrl = it87_read_value(data, IT87_REG_FAN_MAIN_CTRL); data->has_fan = (data->fan_main_ctrl >> 4) & 0x07; it87_check_tachometers_16bit_mode(pdev); /* Check for additional fans */ tmp = it87_read_value(data, IT87_REG_FAN_16BIT); if (has_four_fans(data) && (tmp & BIT(4))) data->has_fan |= BIT(3); /* fan4 enabled */ if (has_five_fans(data) && (tmp & BIT(5))) data->has_fan |= BIT(4); /* fan5 enabled */ if (has_six_fans(data) && (tmp & BIT(2))) data->has_fan |= BIT(5); /* fan6 enabled */ /* Fan input pins may be used for alternative functions */ data->has_fan &= ~sio_data->skip_fan; /* Check if pwm5, pwm6 are enabled */ if (has_six_pwm(data)) { /* The following code may be IT8620E specific */ tmp = it87_read_value(data, IT87_REG_FAN_DIV); if ((tmp & 0xc0) == 0xc0) sio_data->skip_pwm |= BIT(4); if (!(tmp & BIT(3))) sio_data->skip_pwm |= BIT(5); } it87_start_monitoring(data); } /* 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 < ARRAY_SIZE(pwm); 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"); } return 0; } else if (fix_pwm_polarity) { dev_info(dev, "PWM configuration looks sane, won't touch\n"); } return 1; } 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_get_platdata(dev); int enable_pwm_interface; struct device *hwmon_dev; int err; 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->sioaddr = sio_data->sioaddr; data->type = sio_data->type; data->smbus_bitmap = sio_data->smbus_bitmap; data->ec_special_config = sio_data->ec_special_config; 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; /* * 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_FAN16_CONFIG | FEAT_16BIT_FANS; } break; case it8712: if (sio_data->revision >= 0x08) { data->features &= ~FEAT_OLD_AUTOPWM; data->features |= FEAT_FAN16_CONFIG | FEAT_16BIT_FANS | FEAT_FIVE_FANS; } break; default: break; } platform_set_drvdata(pdev, data); mutex_init(&data->update_lock); err = smbus_disable(data); if (err) return err; /* Now, we do the remaining detection. */ if ((it87_read_value(data, IT87_REG_CONFIG) & 0x80) || it87_read_value(data, IT87_REG_CHIPID) != 0x90) { smbus_enable(data); return -ENODEV; } /* Check PWM configuration */ enable_pwm_interface = it87_check_pwm(dev); if (!enable_pwm_interface) dev_info(dev, "Detected broken BIOS defaults, disabling PWM interface\n"); /* Starting with IT8721F, we handle scaling of internal voltages */ if (has_scaling(data)) { if (sio_data->internal & BIT(0)) data->in_scaled |= BIT(3); /* in3 is AVCC */ if (sio_data->internal & BIT(1)) data->in_scaled |= BIT(7); /* in7 is VSB */ if (sio_data->internal & BIT(2)) data->in_scaled |= BIT(8); /* in8 is Vbat */ if (sio_data->internal & BIT(3)) data->in_scaled |= BIT(9); /* in9 is AVCC */ } else if (sio_data->type == it8781 || sio_data->type == it8782 || sio_data->type == it8783) { if (sio_data->internal & BIT(0)) data->in_scaled |= BIT(3); /* in3 is VCC5V */ if (sio_data->internal & BIT(1)) data->in_scaled |= BIT(7); /* in7 is VCCH5V */ } data->has_temp = 0x07; if (sio_data->skip_temp & BIT(2)) { if (sio_data->type == it8782 && !(it87_read_value(data, IT87_REG_TEMP_EXTRA) & 0x80)) data->has_temp &= ~BIT(2); } data->in_internal = sio_data->internal; data->need_in7_reroute = sio_data->need_in7_reroute; data->has_in = 0x3ff & ~sio_data->skip_in; if (has_four_temp(data)) { data->has_temp |= BIT(3); } else if (has_six_temp(data)) { u8 reg = it87_read_value(data, IT87_REG_TEMP456_ENABLE); /* Check for additional temperature sensors */ if ((reg & 0x03) >= 0x02) data->has_temp |= BIT(3); if (((reg >> 2) & 0x03) >= 0x02) data->has_temp |= BIT(4); if (((reg >> 4) & 0x03) >= 0x02) data->has_temp |= BIT(5); /* Check for additional voltage sensors */ if ((reg & 0x03) == 0x01) data->has_in |= BIT(10); if (((reg >> 2) & 0x03) == 0x01) data->has_in |= BIT(11); if (((reg >> 4) & 0x03) == 0x01) data->has_in |= BIT(12); } data->has_beep = !!sio_data->beep_pin; /* Initialize the IT87 chip */ it87_init_device(pdev); smbus_enable(data); if (!sio_data->skip_vid) { data->has_vid = true; data->vrm = vid_which_vrm(); /* VID reading from Super-I/O config space if available */ data->vid = sio_data->vid_value; } /* Prepare for sysfs hooks */ data->groups[0] = &it87_group; data->groups[1] = &it87_group_in; data->groups[2] = &it87_group_temp; data->groups[3] = &it87_group_fan; if (enable_pwm_interface) { data->has_pwm = BIT(ARRAY_SIZE(IT87_REG_PWM)) - 1; data->has_pwm &= ~sio_data->skip_pwm; data->groups[4] = &it87_group_pwm; if (has_old_autopwm(data) || has_newer_autopwm(data)) data->groups[5] = &it87_group_auto_pwm; } hwmon_dev = devm_hwmon_device_register_with_groups(dev, it87_devices[sio_data->type].name, data, data->groups); return PTR_ERR_OR_ZERO(hwmon_dev); } static void it87_resume_sio(struct platform_device *pdev) { struct it87_data *data = dev_get_drvdata(&pdev->dev); int err; int reg2c; if (!data->need_in7_reroute) return; err = superio_enter(data->sioaddr, has_noconf(data)); if (err) { dev_warn(&pdev->dev, "Unable to enter Super I/O to reroute in7 (%d)", err); return; } superio_select(data->sioaddr, GPIO); reg2c = superio_inb(data->sioaddr, IT87_SIO_PINX2_REG); if (!(reg2c & BIT(1))) { dev_dbg(&pdev->dev, "Routing internal VCCH5V to in7 again"); reg2c |= BIT(1); superio_outb(data->sioaddr, IT87_SIO_PINX2_REG, reg2c); } superio_exit(data->sioaddr, has_noconf(data)); } static int it87_resume(struct device *dev) { struct platform_device *pdev = to_platform_device(dev); struct it87_data *data = dev_get_drvdata(dev); it87_resume_sio(pdev); it87_lock(data); it87_check_pwm(dev); it87_check_limit_regs(data); it87_check_voltage_monitors_reset(data); it87_check_tachometers_reset(pdev); it87_check_tachometers_16bit_mode(pdev); it87_start_monitoring(data); /* force update */ data->valid = false; it87_unlock(data); it87_update_device(dev); return 0; } static DEFINE_SIMPLE_DEV_PM_OPS(it87_dev_pm_ops, NULL, it87_resume); static struct platform_driver it87_driver = { .driver = { .name = DRVNAME, .pm = pm_sleep_ptr(&it87_dev_pm_ops), }, .probe = it87_probe, }; static int __init it87_device_add(int index, unsigned short address, const struct it87_sio_data *sio_data) { struct platform_device *pdev; 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) { if (!ignore_resource_conflict) return err; } pdev = platform_device_alloc(DRVNAME, address); if (!pdev) return -ENOMEM; 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; } it87_pdev[index] = pdev; return 0; exit_device_put: platform_device_put(pdev); return err; } /* callback function for DMI */ static int it87_dmi_cb(const struct dmi_system_id *dmi_entry) { dmi_data = dmi_entry->driver_data; if (dmi_data && dmi_data->skip_pwm) pr_info("Disabling pwm2 due to hardware constraints\n"); return 1; } /* * 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. */ static struct it87_dmi_data nvidia_fn68pt = { .skip_pwm = BIT(1), }; #define IT87_DMI_MATCH_VND(vendor, name, cb, data) \ { \ .callback = cb, \ .matches = { \ DMI_EXACT_MATCH(DMI_BOARD_VENDOR, vendor), \ DMI_EXACT_MATCH(DMI_BOARD_NAME, name), \ }, \ .driver_data = data, \ } static const struct dmi_system_id it87_dmi_table[] __initconst = { IT87_DMI_MATCH_VND("nVIDIA", "FN68PT", it87_dmi_cb, &nvidia_fn68pt), { } }; MODULE_DEVICE_TABLE(dmi, it87_dmi_table); static int __init sm_it87_init(void) { int sioaddr[2] = { REG_2E, REG_4E }; struct it87_sio_data sio_data; unsigned short isa_address[2]; bool found = false; int i, err; err = platform_driver_register(&it87_driver); if (err) return err; dmi_check_system(it87_dmi_table); for (i = 0; i < ARRAY_SIZE(sioaddr); i++) { memset(&sio_data, 0, sizeof(struct it87_sio_data)); isa_address[i] = 0; err = it87_find(sioaddr[i], &isa_address[i], &sio_data, i); if (err || isa_address[i] == 0) continue; /* * Don't register second chip if its ISA address matches * the first chip's ISA address. */ if (i && isa_address[i] == isa_address[0]) break; err = it87_device_add(i, isa_address[i], &sio_data); if (err) goto exit_dev_unregister; found = true; /* * IT8705F may respond on both SIO addresses. * Stop probing after finding one. */ if (sio_data.type == it87) break; } if (!found) { err = -ENODEV; goto exit_unregister; } return 0; exit_dev_unregister: /* NULL check handled by platform_device_unregister */ platform_device_unregister(it87_pdev[0]); exit_unregister: platform_driver_unregister(&it87_driver); return err; } static void __exit sm_it87_exit(void) { /* NULL check handled by platform_device_unregister */ platform_device_unregister(it87_pdev[1]); platform_device_unregister(it87_pdev[0]); platform_driver_unregister(&it87_driver); } MODULE_AUTHOR("Chris Gauthron, Jean Delvare <jdelvare@suse.de>"); MODULE_DESCRIPTION("IT8705F/IT871xF/IT872xF hardware monitoring driver"); module_param_array(force_id, ushort, &force_id_cnt, 0); MODULE_PARM_DESC(force_id, "Override one or more detected device ID(s)"); module_param(ignore_resource_conflict, bool, 0); MODULE_PARM_DESC(ignore_resource_conflict, "Ignore ACPI resource conflict"); 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"); module_init(sm_it87_init); module_exit(sm_it87_exit);
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