| /* |
| * 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 |
| * IT8623E 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 |
| * Sis950 A clone of the IT8705F |
| * |
| * Copyright (C) 2001 Chris Gauthron |
| * Copyright (C) 2005-2010 Jean Delvare <jdelvare@suse.de> |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| */ |
| |
| #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
| |
| #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, it8603, |
| it8620 }; |
| |
| static unsigned short force_id; |
| module_param(force_id, ushort, 0); |
| MODULE_PARM_DESC(force_id, "Override the detected device ID"); |
| |
| static struct platform_device *pdev; |
| |
| #define REG 0x2e /* The register to read/write */ |
| #define DEV 0x07 /* Register: Logical device select */ |
| #define VAL 0x2f /* The value to read/write */ |
| #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 int superio_inb(int reg) |
| { |
| outb(reg, REG); |
| return inb(VAL); |
| } |
| |
| static inline void superio_outb(int reg, int val) |
| { |
| outb(reg, REG); |
| outb(val, VAL); |
| } |
| |
| static int superio_inw(int reg) |
| { |
| int val; |
| outb(reg++, REG); |
| val = inb(VAL) << 8; |
| outb(reg, REG); |
| val |= inb(VAL); |
| return val; |
| } |
| |
| static inline void superio_select(int ldn) |
| { |
| outb(DEV, REG); |
| outb(ldn, VAL); |
| } |
| |
| static inline int superio_enter(void) |
| { |
| /* |
| * Try to reserve REG and REG + 1 for exclusive access. |
| */ |
| if (!request_muxed_region(REG, 2, DRVNAME)) |
| return -EBUSY; |
| |
| outb(0x87, REG); |
| outb(0x01, REG); |
| outb(0x55, REG); |
| outb(0x55, REG); |
| return 0; |
| } |
| |
| static inline void superio_exit(void) |
| { |
| outb(0x02, REG); |
| outb(0x02, VAL); |
| release_region(REG, 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 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 IT8623E_DEVID 0x8623 |
| #define IT87_ACT_REG 0x30 |
| #define IT87_BASE_REG 0x60 |
| |
| /* 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_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 */ |
| |
| /* 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 |
| /* |
| * 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: 9 voltage (0 to 7, battery), 3 temp (1 to 3), 3 fan (1 to 3) */ |
| |
| 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 |
| #define IT87_REG_PWM(nr) (0x15 + (nr)) |
| #define IT87_REG_PWM_DUTY(nr) (0x63 + (nr) * 8) |
| |
| #define IT87_REG_VIN(nr) (0x20 + (nr)) |
| #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 |
| |
| #define IT87_REG_AUTO_TEMP(nr, i) (0x60 + (nr) * 8 + (i)) |
| #define IT87_REG_AUTO_PWM(nr, i) (0x65 + (nr) * 8 + (i)) |
| |
| struct it87_devices { |
| const char *name; |
| const char * const suffix; |
| u16 features; |
| u8 peci_mask; |
| u8 old_peci_mask; |
| }; |
| |
| #define FEAT_12MV_ADC (1 << 0) |
| #define FEAT_NEWER_AUTOPWM (1 << 1) |
| #define FEAT_OLD_AUTOPWM (1 << 2) |
| #define FEAT_16BIT_FANS (1 << 3) |
| #define FEAT_TEMP_OFFSET (1 << 4) |
| #define FEAT_TEMP_PECI (1 << 5) |
| #define FEAT_TEMP_OLD_PECI (1 << 6) |
| #define FEAT_FAN16_CONFIG (1 << 7) /* Need to enable 16-bit fans */ |
| #define FEAT_FIVE_FANS (1 << 8) /* Supports five fans */ |
| #define FEAT_VID (1 << 9) /* Set if chip supports VID */ |
| #define FEAT_IN7_INTERNAL (1 << 10) /* Set if in7 is internal */ |
| #define FEAT_SIX_FANS (1 << 11) /* Supports six fans */ |
| #define FEAT_10_9MV_ADC (1 << 12) |
| |
| static const struct it87_devices it87_devices[] = { |
| [it87] = { |
| .name = "it87", |
| .suffix = "F", |
| .features = FEAT_OLD_AUTOPWM, /* may need to overwrite */ |
| }, |
| [it8712] = { |
| .name = "it8712", |
| .suffix = "F", |
| .features = FEAT_OLD_AUTOPWM | FEAT_VID, |
| /* may need to overwrite */ |
| }, |
| [it8716] = { |
| .name = "it8716", |
| .suffix = "F", |
| .features = FEAT_16BIT_FANS | FEAT_TEMP_OFFSET | FEAT_VID |
| | FEAT_FAN16_CONFIG | FEAT_FIVE_FANS, |
| }, |
| [it8718] = { |
| .name = "it8718", |
| .suffix = "F", |
| .features = FEAT_16BIT_FANS | FEAT_TEMP_OFFSET | FEAT_VID |
| | FEAT_TEMP_OLD_PECI | FEAT_FAN16_CONFIG | FEAT_FIVE_FANS, |
| .old_peci_mask = 0x4, |
| }, |
| [it8720] = { |
| .name = "it8720", |
| .suffix = "F", |
| .features = FEAT_16BIT_FANS | FEAT_TEMP_OFFSET | FEAT_VID |
| | FEAT_TEMP_OLD_PECI | FEAT_FAN16_CONFIG | FEAT_FIVE_FANS, |
| .old_peci_mask = 0x4, |
| }, |
| [it8721] = { |
| .name = "it8721", |
| .suffix = "F", |
| .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, |
| .peci_mask = 0x05, |
| .old_peci_mask = 0x02, /* Actually reports PCH */ |
| }, |
| [it8728] = { |
| .name = "it8728", |
| .suffix = "F", |
| .features = FEAT_NEWER_AUTOPWM | FEAT_12MV_ADC | FEAT_16BIT_FANS |
| | FEAT_TEMP_OFFSET | FEAT_TEMP_PECI | FEAT_FIVE_FANS |
| | FEAT_IN7_INTERNAL, |
| .peci_mask = 0x07, |
| }, |
| [it8732] = { |
| .name = "it8732", |
| .suffix = "F", |
| .features = FEAT_NEWER_AUTOPWM | FEAT_16BIT_FANS |
| | FEAT_TEMP_OFFSET | FEAT_TEMP_OLD_PECI | FEAT_TEMP_PECI |
| | FEAT_10_9MV_ADC | FEAT_IN7_INTERNAL, |
| .peci_mask = 0x07, |
| .old_peci_mask = 0x02, /* Actually reports PCH */ |
| }, |
| [it8771] = { |
| .name = "it8771", |
| .suffix = "E", |
| .features = FEAT_NEWER_AUTOPWM | FEAT_12MV_ADC | FEAT_16BIT_FANS |
| | FEAT_TEMP_OFFSET | FEAT_TEMP_PECI | FEAT_IN7_INTERNAL, |
| /* PECI: guesswork */ |
| /* 12mV ADC (OHM) */ |
| /* 16 bit fans (OHM) */ |
| /* three fans, always 16 bit (guesswork) */ |
| .peci_mask = 0x07, |
| }, |
| [it8772] = { |
| .name = "it8772", |
| .suffix = "E", |
| .features = FEAT_NEWER_AUTOPWM | FEAT_12MV_ADC | FEAT_16BIT_FANS |
| | FEAT_TEMP_OFFSET | FEAT_TEMP_PECI | FEAT_IN7_INTERNAL, |
| /* PECI (coreboot) */ |
| /* 12mV ADC (HWSensors4, OHM) */ |
| /* 16 bit fans (HWSensors4, OHM) */ |
| /* three fans, always 16 bit (datasheet) */ |
| .peci_mask = 0x07, |
| }, |
| [it8781] = { |
| .name = "it8781", |
| .suffix = "F", |
| .features = FEAT_16BIT_FANS | FEAT_TEMP_OFFSET |
| | FEAT_TEMP_OLD_PECI | FEAT_FAN16_CONFIG, |
| .old_peci_mask = 0x4, |
| }, |
| [it8782] = { |
| .name = "it8782", |
| .suffix = "F", |
| .features = FEAT_16BIT_FANS | FEAT_TEMP_OFFSET |
| | FEAT_TEMP_OLD_PECI | FEAT_FAN16_CONFIG, |
| .old_peci_mask = 0x4, |
| }, |
| [it8783] = { |
| .name = "it8783", |
| .suffix = "E/F", |
| .features = FEAT_16BIT_FANS | FEAT_TEMP_OFFSET |
| | FEAT_TEMP_OLD_PECI | FEAT_FAN16_CONFIG, |
| .old_peci_mask = 0x4, |
| }, |
| [it8786] = { |
| .name = "it8786", |
| .suffix = "E", |
| .features = FEAT_NEWER_AUTOPWM | FEAT_12MV_ADC | FEAT_16BIT_FANS |
| | FEAT_TEMP_OFFSET | FEAT_TEMP_PECI | FEAT_IN7_INTERNAL, |
| .peci_mask = 0x07, |
| }, |
| [it8790] = { |
| .name = "it8790", |
| .suffix = "E", |
| .features = FEAT_NEWER_AUTOPWM | FEAT_12MV_ADC | FEAT_16BIT_FANS |
| | FEAT_TEMP_OFFSET | FEAT_TEMP_PECI | FEAT_IN7_INTERNAL, |
| .peci_mask = 0x07, |
| }, |
| [it8603] = { |
| .name = "it8603", |
| .suffix = "E", |
| .features = FEAT_NEWER_AUTOPWM | FEAT_12MV_ADC | FEAT_16BIT_FANS |
| | FEAT_TEMP_OFFSET | FEAT_TEMP_PECI | FEAT_IN7_INTERNAL, |
| .peci_mask = 0x07, |
| }, |
| [it8620] = { |
| .name = "it8620", |
| .suffix = "E", |
| .features = FEAT_NEWER_AUTOPWM | FEAT_12MV_ADC | FEAT_16BIT_FANS |
| | FEAT_TEMP_OFFSET | FEAT_TEMP_PECI | FEAT_SIX_FANS |
| | FEAT_IN7_INTERNAL, |
| .peci_mask = 0x07, |
| }, |
| }; |
| |
| #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 & (1 << nr))) |
| #define has_temp_old_peci(data, nr) \ |
| (((data)->features & FEAT_TEMP_OLD_PECI) && \ |
| ((data)->old_peci_mask & (1 << nr))) |
| #define has_fan16_config(data) ((data)->features & FEAT_FAN16_CONFIG) |
| #define has_five_fans(data) ((data)->features & (FEAT_FIVE_FANS | \ |
| FEAT_SIX_FANS)) |
| #define has_vid(data) ((data)->features & FEAT_VID) |
| #define has_in7_internal(data) ((data)->features & FEAT_IN7_INTERNAL) |
| #define has_six_fans(data) ((data)->features & FEAT_SIX_FANS) |
| |
| struct it87_sio_data { |
| 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 */ |
| /* Features skipped based on config or DMI */ |
| u16 skip_in; |
| u8 skip_vid; |
| u8 skip_fan; |
| u8 skip_pwm; |
| u8 skip_temp; |
| }; |
| |
| /* |
| * For each registered chip, we need to keep some data in memory. |
| * The structure is dynamically allocated. |
| */ |
| struct it87_data { |
| struct device *hwmon_dev; |
| enum chips type; |
| u16 features; |
| u8 peci_mask; |
| u8 old_peci_mask; |
| |
| unsigned short addr; |
| const char *name; |
| struct mutex update_lock; |
| char valid; /* !=0 if following fields are valid */ |
| unsigned long last_updated; /* In jiffies */ |
| |
| u16 in_scaled; /* Internal voltage sensors are scaled */ |
| u8 in[10][3]; /* [nr][0]=in, [1]=min, [2]=max */ |
| u8 has_fan; /* Bitfield, fans enabled */ |
| u16 fan[6][2]; /* Register values, [nr][0]=fan, [1]=min */ |
| u8 has_temp; /* Bitfield, temp sensors enabled */ |
| s8 temp[3][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[3]; /* Register encoding, shifted right */ |
| u8 vid; /* Register encoding, combined */ |
| u8 vrm; |
| u32 alarms; /* Register encoding, combined */ |
| 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 pwm_ctrl[3]; /* Register value */ |
| u8 pwm_duty[3]; /* Manual PWM value set by user */ |
| u8 pwm_temp_map[3]; /* PWM to temp. chan. mapping (bits 1-0) */ |
| |
| /* Automatic fan speed control registers */ |
| u8 auto_pwm[3][4]; /* [nr][3] is hard-coded */ |
| s8 auto_temp[3][5]; /* [nr][0] is point1_temp_hyst */ |
| }; |
| |
| 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 & (1 << 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) (1 << (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 it87_probe(struct platform_device *pdev); |
| static int it87_remove(struct platform_device *pdev); |
| |
| static int it87_read_value(struct it87_data *data, u8 reg); |
| static void it87_write_value(struct it87_data *data, u8 reg, u8 value); |
| static struct it87_data *it87_update_device(struct device *dev); |
| static int it87_check_pwm(struct device *dev); |
| static void it87_init_device(struct platform_device *pdev); |
| |
| |
| static struct platform_driver it87_driver = { |
| .driver = { |
| .name = DRVNAME, |
| }, |
| .probe = it87_probe, |
| .remove = it87_remove, |
| }; |
| |
| static ssize_t show_in(struct device *dev, struct device_attribute *attr, |
| char *buf) |
| { |
| struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
| int nr = sattr->nr; |
| int index = sattr->index; |
| |
| struct it87_data *data = it87_update_device(dev); |
| return sprintf(buf, "%d\n", in_from_reg(data, nr, data->in[nr][index])); |
| } |
| |
| static ssize_t set_in(struct device *dev, struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
| int nr = sattr->nr; |
| int index = sattr->index; |
| |
| struct it87_data *data = dev_get_drvdata(dev); |
| unsigned long val; |
| |
| if (kstrtoul(buf, 10, &val) < 0) |
| return -EINVAL; |
| |
| mutex_lock(&data->update_lock); |
| data->in[nr][index] = in_to_reg(data, nr, val); |
| it87_write_value(data, |
| index == 1 ? IT87_REG_VIN_MIN(nr) |
| : IT87_REG_VIN_MAX(nr), |
| data->in[nr][index]); |
| mutex_unlock(&data->update_lock); |
| return count; |
| } |
| |
| static SENSOR_DEVICE_ATTR_2(in0_input, S_IRUGO, show_in, NULL, 0, 0); |
| static SENSOR_DEVICE_ATTR_2(in0_min, S_IRUGO | S_IWUSR, show_in, set_in, |
| 0, 1); |
| static SENSOR_DEVICE_ATTR_2(in0_max, S_IRUGO | S_IWUSR, show_in, set_in, |
| 0, 2); |
| |
| static SENSOR_DEVICE_ATTR_2(in1_input, S_IRUGO, show_in, NULL, 1, 0); |
| static SENSOR_DEVICE_ATTR_2(in1_min, S_IRUGO | S_IWUSR, show_in, set_in, |
| 1, 1); |
| static SENSOR_DEVICE_ATTR_2(in1_max, S_IRUGO | S_IWUSR, show_in, set_in, |
| 1, 2); |
| |
| static SENSOR_DEVICE_ATTR_2(in2_input, S_IRUGO, show_in, NULL, 2, 0); |
| static SENSOR_DEVICE_ATTR_2(in2_min, S_IRUGO | S_IWUSR, show_in, set_in, |
| 2, 1); |
| static SENSOR_DEVICE_ATTR_2(in2_max, S_IRUGO | S_IWUSR, show_in, set_in, |
| 2, 2); |
| |
| static SENSOR_DEVICE_ATTR_2(in3_input, S_IRUGO, show_in, NULL, 3, 0); |
| static SENSOR_DEVICE_ATTR_2(in3_min, S_IRUGO | S_IWUSR, show_in, set_in, |
| 3, 1); |
| static SENSOR_DEVICE_ATTR_2(in3_max, S_IRUGO | S_IWUSR, show_in, set_in, |
| 3, 2); |
| |
| static SENSOR_DEVICE_ATTR_2(in4_input, S_IRUGO, show_in, NULL, 4, 0); |
| static SENSOR_DEVICE_ATTR_2(in4_min, S_IRUGO | S_IWUSR, show_in, set_in, |
| 4, 1); |
| static SENSOR_DEVICE_ATTR_2(in4_max, S_IRUGO | S_IWUSR, show_in, set_in, |
| 4, 2); |
| |
| static SENSOR_DEVICE_ATTR_2(in5_input, S_IRUGO, show_in, NULL, 5, 0); |
| static SENSOR_DEVICE_ATTR_2(in5_min, S_IRUGO | S_IWUSR, show_in, set_in, |
| 5, 1); |
| static SENSOR_DEVICE_ATTR_2(in5_max, S_IRUGO | S_IWUSR, show_in, set_in, |
| 5, 2); |
| |
| static SENSOR_DEVICE_ATTR_2(in6_input, S_IRUGO, show_in, NULL, 6, 0); |
| static SENSOR_DEVICE_ATTR_2(in6_min, S_IRUGO | S_IWUSR, show_in, set_in, |
| 6, 1); |
| static SENSOR_DEVICE_ATTR_2(in6_max, S_IRUGO | S_IWUSR, show_in, set_in, |
| 6, 2); |
| |
| static SENSOR_DEVICE_ATTR_2(in7_input, S_IRUGO, show_in, NULL, 7, 0); |
| static SENSOR_DEVICE_ATTR_2(in7_min, S_IRUGO | S_IWUSR, show_in, set_in, |
| 7, 1); |
| static SENSOR_DEVICE_ATTR_2(in7_max, S_IRUGO | S_IWUSR, show_in, set_in, |
| 7, 2); |
| |
| static SENSOR_DEVICE_ATTR_2(in8_input, S_IRUGO, show_in, NULL, 8, 0); |
| static SENSOR_DEVICE_ATTR_2(in9_input, S_IRUGO, show_in, NULL, 9, 0); |
| |
| /* 3 temperatures */ |
| static ssize_t show_temp(struct device *dev, struct device_attribute *attr, |
| char *buf) |
| { |
| struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
| int nr = sattr->nr; |
| int index = sattr->index; |
| struct it87_data *data = it87_update_device(dev); |
| |
| return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[nr][index])); |
| } |
| |
| static ssize_t set_temp(struct device *dev, struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
| int nr = sattr->nr; |
| int index = sattr->index; |
| struct it87_data *data = dev_get_drvdata(dev); |
| long val; |
| u8 reg, regval; |
| |
| if (kstrtol(buf, 10, &val) < 0) |
| return -EINVAL; |
| |
| mutex_lock(&data->update_lock); |
| |
| switch (index) { |
| default: |
| case 1: |
| reg = IT87_REG_TEMP_LOW(nr); |
| break; |
| case 2: |
| reg = IT87_REG_TEMP_HIGH(nr); |
| break; |
| case 3: |
| regval = it87_read_value(data, IT87_REG_BEEP_ENABLE); |
| if (!(regval & 0x80)) { |
| regval |= 0x80; |
| it87_write_value(data, IT87_REG_BEEP_ENABLE, regval); |
| } |
| data->valid = 0; |
| reg = IT87_REG_TEMP_OFFSET[nr]; |
| break; |
| } |
| |
| data->temp[nr][index] = TEMP_TO_REG(val); |
| it87_write_value(data, reg, data->temp[nr][index]); |
| mutex_unlock(&data->update_lock); |
| return count; |
| } |
| |
| static SENSOR_DEVICE_ATTR_2(temp1_input, S_IRUGO, show_temp, NULL, 0, 0); |
| static SENSOR_DEVICE_ATTR_2(temp1_min, S_IRUGO | S_IWUSR, show_temp, set_temp, |
| 0, 1); |
| static SENSOR_DEVICE_ATTR_2(temp1_max, S_IRUGO | S_IWUSR, show_temp, set_temp, |
| 0, 2); |
| static SENSOR_DEVICE_ATTR_2(temp1_offset, S_IRUGO | S_IWUSR, show_temp, |
| set_temp, 0, 3); |
| static SENSOR_DEVICE_ATTR_2(temp2_input, S_IRUGO, show_temp, NULL, 1, 0); |
| static SENSOR_DEVICE_ATTR_2(temp2_min, S_IRUGO | S_IWUSR, show_temp, set_temp, |
| 1, 1); |
| static SENSOR_DEVICE_ATTR_2(temp2_max, S_IRUGO | S_IWUSR, show_temp, set_temp, |
| 1, 2); |
| static SENSOR_DEVICE_ATTR_2(temp2_offset, S_IRUGO | S_IWUSR, show_temp, |
| set_temp, 1, 3); |
| static SENSOR_DEVICE_ATTR_2(temp3_input, S_IRUGO, show_temp, NULL, 2, 0); |
| static SENSOR_DEVICE_ATTR_2(temp3_min, S_IRUGO | S_IWUSR, show_temp, set_temp, |
| 2, 1); |
| static SENSOR_DEVICE_ATTR_2(temp3_max, S_IRUGO | S_IWUSR, show_temp, set_temp, |
| 2, 2); |
| static SENSOR_DEVICE_ATTR_2(temp3_offset, S_IRUGO | S_IWUSR, show_temp, |
| set_temp, 2, 3); |
| |
| static ssize_t show_temp_type(struct device *dev, struct device_attribute *attr, |
| char *buf) |
| { |
| struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
| int nr = sensor_attr->index; |
| struct it87_data *data = it87_update_device(dev); |
| u8 reg = data->sensor; /* In case value is updated while used */ |
| u8 extra = data->extra; |
| |
| if ((has_temp_peci(data, nr) && (reg >> 6 == nr + 1)) |
| || (has_temp_old_peci(data, nr) && (extra & 0x80))) |
| return sprintf(buf, "6\n"); /* Intel PECI */ |
| if (reg & (1 << nr)) |
| return sprintf(buf, "3\n"); /* thermal diode */ |
| if (reg & (8 << nr)) |
| return sprintf(buf, "4\n"); /* thermistor */ |
| return sprintf(buf, "0\n"); /* disabled */ |
| } |
| |
| static ssize_t set_temp_type(struct device *dev, struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
| int nr = sensor_attr->index; |
| |
| struct it87_data *data = dev_get_drvdata(dev); |
| long val; |
| u8 reg, extra; |
| |
| if (kstrtol(buf, 10, &val) < 0) |
| return -EINVAL; |
| |
| reg = it87_read_value(data, IT87_REG_TEMP_ENABLE); |
| reg &= ~(1 << nr); |
| reg &= ~(8 << nr); |
| if (has_temp_peci(data, nr) && (reg >> 6 == nr + 1 || val == 6)) |
| reg &= 0x3f; |
| extra = it87_read_value(data, IT87_REG_TEMP_EXTRA); |
| if (has_temp_old_peci(data, nr) && ((extra & 0x80) || val == 6)) |
| extra &= 0x7f; |
| if (val == 2) { /* backwards compatibility */ |
| dev_warn(dev, |
| "Sensor type 2 is deprecated, please use 4 instead\n"); |
| val = 4; |
| } |
| /* 3 = thermal diode; 4 = thermistor; 6 = Intel PECI; 0 = disabled */ |
| if (val == 3) |
| reg |= 1 << nr; |
| else if (val == 4) |
| reg |= 8 << nr; |
| else if (has_temp_peci(data, nr) && val == 6) |
| reg |= (nr + 1) << 6; |
| else if (has_temp_old_peci(data, nr) && val == 6) |
| extra |= 0x80; |
| else if (val != 0) |
| return -EINVAL; |
| |
| mutex_lock(&data->update_lock); |
| data->sensor = reg; |
| data->extra = extra; |
| it87_write_value(data, IT87_REG_TEMP_ENABLE, data->sensor); |
| if (has_temp_old_peci(data, nr)) |
| it87_write_value(data, IT87_REG_TEMP_EXTRA, data->extra); |
| data->valid = 0; /* Force cache refresh */ |
| mutex_unlock(&data->update_lock); |
| return count; |
| } |
| |
| static SENSOR_DEVICE_ATTR(temp1_type, S_IRUGO | S_IWUSR, show_temp_type, |
| set_temp_type, 0); |
| static SENSOR_DEVICE_ATTR(temp2_type, S_IRUGO | S_IWUSR, show_temp_type, |
| set_temp_type, 1); |
| static SENSOR_DEVICE_ATTR(temp3_type, S_IRUGO | S_IWUSR, show_temp_type, |
| set_temp_type, 2); |
| |
| /* 3 Fans */ |
| |
| static int pwm_mode(const struct it87_data *data, int nr) |
| { |
| int ctrl = data->fan_main_ctrl & (1 << nr); |
| |
| if (ctrl == 0 && data->type != it8603) /* Full speed */ |
| return 0; |
| if (data->pwm_ctrl[nr] & 0x80) /* Automatic mode */ |
| return 2; |
| else /* Manual mode */ |
| return 1; |
| } |
| |
| static ssize_t show_fan(struct device *dev, struct device_attribute *attr, |
| char *buf) |
| { |
| struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
| int nr = sattr->nr; |
| int index = sattr->index; |
| int speed; |
| struct it87_data *data = it87_update_device(dev); |
| |
| speed = has_16bit_fans(data) ? |
| FAN16_FROM_REG(data->fan[nr][index]) : |
| FAN_FROM_REG(data->fan[nr][index], |
| DIV_FROM_REG(data->fan_div[nr])); |
| return sprintf(buf, "%d\n", speed); |
| } |
| |
| static ssize_t show_fan_div(struct device *dev, struct device_attribute *attr, |
| char *buf) |
| { |
| struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
| int nr = sensor_attr->index; |
| |
| struct it87_data *data = it87_update_device(dev); |
| return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[nr])); |
| } |
| static ssize_t show_pwm_enable(struct device *dev, |
| struct device_attribute *attr, char *buf) |
| { |
| struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
| int nr = sensor_attr->index; |
| |
| struct it87_data *data = it87_update_device(dev); |
| return sprintf(buf, "%d\n", pwm_mode(data, nr)); |
| } |
| static ssize_t show_pwm(struct device *dev, struct device_attribute *attr, |
| char *buf) |
| { |
| struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
| int nr = sensor_attr->index; |
| |
| struct it87_data *data = it87_update_device(dev); |
| return sprintf(buf, "%d\n", |
| pwm_from_reg(data, data->pwm_duty[nr])); |
| } |
| static ssize_t show_pwm_freq(struct device *dev, struct device_attribute *attr, |
| char *buf) |
| { |
| struct it87_data *data = it87_update_device(dev); |
| int index = (data->fan_ctl >> 4) & 0x07; |
| unsigned int freq; |
| |
| 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; |
| u8 reg; |
| |
| if (kstrtol(buf, 10, &val) < 0) |
| return -EINVAL; |
| |
| mutex_lock(&data->update_lock); |
| |
| if (has_16bit_fans(data)) { |
| data->fan[nr][index] = FAN16_TO_REG(val); |
| it87_write_value(data, IT87_REG_FAN_MIN[nr], |
| data->fan[nr][index] & 0xff); |
| it87_write_value(data, IT87_REG_FANX_MIN[nr], |
| data->fan[nr][index] >> 8); |
| } else { |
| reg = it87_read_value(data, IT87_REG_FAN_DIV); |
| switch (nr) { |
| case 0: |
| data->fan_div[nr] = reg & 0x07; |
| break; |
| case 1: |
| data->fan_div[nr] = (reg >> 3) & 0x07; |
| break; |
| case 2: |
| data->fan_div[nr] = (reg & 0x40) ? 3 : 1; |
| break; |
| } |
| data->fan[nr][index] = |
| FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr])); |
| it87_write_value(data, IT87_REG_FAN_MIN[nr], |
| data->fan[nr][index]); |
| } |
| |
| mutex_unlock(&data->update_lock); |
| return count; |
| } |
| |
| static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
| int nr = sensor_attr->index; |
| |
| struct it87_data *data = dev_get_drvdata(dev); |
| unsigned long val; |
| int min; |
| u8 old; |
| |
| if (kstrtoul(buf, 10, &val) < 0) |
| return -EINVAL; |
| |
| mutex_lock(&data->update_lock); |
| old = it87_read_value(data, IT87_REG_FAN_DIV); |
| |
| /* Save fan min limit */ |
| min = FAN_FROM_REG(data->fan[nr][1], DIV_FROM_REG(data->fan_div[nr])); |
| |
| switch (nr) { |
| case 0: |
| case 1: |
| data->fan_div[nr] = DIV_TO_REG(val); |
| break; |
| case 2: |
| if (val < 8) |
| data->fan_div[nr] = 1; |
| else |
| data->fan_div[nr] = 3; |
| } |
| val = old & 0x80; |
| val |= (data->fan_div[0] & 0x07); |
| val |= (data->fan_div[1] & 0x07) << 3; |
| if (data->fan_div[2] == 3) |
| val |= 0x1 << 6; |
| it87_write_value(data, IT87_REG_FAN_DIV, val); |
| |
| /* Restore fan min limit */ |
| data->fan[nr][1] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr])); |
| it87_write_value(data, IT87_REG_FAN_MIN[nr], data->fan[nr][1]); |
| |
| mutex_unlock(&data->update_lock); |
| return count; |
| } |
| |
| /* Returns 0 if OK, -EINVAL otherwise */ |
| static int check_trip_points(struct device *dev, int nr) |
| { |
| const struct it87_data *data = dev_get_drvdata(dev); |
| int i, err = 0; |
| |
| if (has_old_autopwm(data)) { |
| for (i = 0; i < 3; i++) { |
| if (data->auto_temp[nr][i] > data->auto_temp[nr][i + 1]) |
| err = -EINVAL; |
| } |
| for (i = 0; i < 2; i++) { |
| if (data->auto_pwm[nr][i] > data->auto_pwm[nr][i + 1]) |
| err = -EINVAL; |
| } |
| } |
| |
| if (err) { |
| dev_err(dev, |
| "Inconsistent trip points, not switching to automatic mode\n"); |
| dev_err(dev, "Adjust the trip points and try again\n"); |
| } |
| return err; |
| } |
| |
| static ssize_t set_pwm_enable(struct device *dev, |
| struct device_attribute *attr, const char *buf, size_t count) |
| { |
| struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
| int nr = sensor_attr->index; |
| |
| struct it87_data *data = dev_get_drvdata(dev); |
| long val; |
| |
| if (kstrtol(buf, 10, &val) < 0 || val < 0 || val > 2) |
| return -EINVAL; |
| |
| /* Check trip points before switching to automatic mode */ |
| if (val == 2) { |
| if (check_trip_points(dev, nr) < 0) |
| return -EINVAL; |
| } |
| |
| /* IT8603E does not have on/off mode */ |
| if (val == 0 && data->type == it8603) |
| return -EINVAL; |
| |
| mutex_lock(&data->update_lock); |
| |
| if (val == 0) { |
| int tmp; |
| /* make sure the fan is on when in on/off mode */ |
| tmp = it87_read_value(data, IT87_REG_FAN_CTL); |
| it87_write_value(data, IT87_REG_FAN_CTL, tmp | (1 << nr)); |
| /* set on/off mode */ |
| data->fan_main_ctrl &= ~(1 << nr); |
| it87_write_value(data, IT87_REG_FAN_MAIN_CTRL, |
| data->fan_main_ctrl); |
| } else { |
| if (val == 1) /* Manual mode */ |
| data->pwm_ctrl[nr] = has_newer_autopwm(data) ? |
| data->pwm_temp_map[nr] : |
| data->pwm_duty[nr]; |
| else /* Automatic mode */ |
| data->pwm_ctrl[nr] = 0x80 | data->pwm_temp_map[nr]; |
| it87_write_value(data, IT87_REG_PWM(nr), data->pwm_ctrl[nr]); |
| |
| if (data->type != it8603) { |
| /* set SmartGuardian mode */ |
| data->fan_main_ctrl |= (1 << nr); |
| it87_write_value(data, IT87_REG_FAN_MAIN_CTRL, |
| data->fan_main_ctrl); |
| } |
| } |
| |
| mutex_unlock(&data->update_lock); |
| return count; |
| } |
| static ssize_t set_pwm(struct device *dev, struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
| int nr = sensor_attr->index; |
| |
| struct it87_data *data = dev_get_drvdata(dev); |
| long val; |
| |
| if (kstrtol(buf, 10, &val) < 0 || val < 0 || val > 255) |
| return -EINVAL; |
| |
| mutex_lock(&data->update_lock); |
| if (has_newer_autopwm(data)) { |
| /* |
| * If we are in automatic mode, the PWM duty cycle register |
| * is read-only so we can't write the value. |
| */ |
| if (data->pwm_ctrl[nr] & 0x80) { |
| mutex_unlock(&data->update_lock); |
| return -EBUSY; |
| } |
| data->pwm_duty[nr] = pwm_to_reg(data, val); |
| it87_write_value(data, IT87_REG_PWM_DUTY(nr), |
| data->pwm_duty[nr]); |
| } else { |
| data->pwm_duty[nr] = pwm_to_reg(data, val); |
| /* |
| * If we are in manual mode, write the duty cycle immediately; |
| * otherwise, just store it for later use. |
| */ |
| if (!(data->pwm_ctrl[nr] & 0x80)) { |
| data->pwm_ctrl[nr] = data->pwm_duty[nr]; |
| it87_write_value(data, IT87_REG_PWM(nr), |
| data->pwm_ctrl[nr]); |
| } |
| } |
| mutex_unlock(&data->update_lock); |
| return count; |
| } |
| static ssize_t set_pwm_freq(struct device *dev, |
| struct device_attribute *attr, const char *buf, size_t count) |
| { |
| struct it87_data *data = dev_get_drvdata(dev); |
| unsigned long val; |
| int i; |
| |
| if (kstrtoul(buf, 10, &val) < 0) |
| return -EINVAL; |
| |
| 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; |
| } |
| |
| mutex_lock(&data->update_lock); |
| data->fan_ctl = it87_read_value(data, IT87_REG_FAN_CTL) & 0x8f; |
| data->fan_ctl |= i << 4; |
| it87_write_value(data, IT87_REG_FAN_CTL, data->fan_ctl); |
| mutex_unlock(&data->update_lock); |
| |
| return count; |
| } |
| static ssize_t show_pwm_temp_map(struct device *dev, |
| struct device_attribute *attr, char *buf) |
| { |
| struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
| int nr = sensor_attr->index; |
| |
| struct it87_data *data = it87_update_device(dev); |
| int map; |
| |
| if (data->pwm_temp_map[nr] < 3) |
| map = 1 << data->pwm_temp_map[nr]; |
| else |
| map = 0; /* Should never happen */ |
| return sprintf(buf, "%d\n", map); |
| } |
| static ssize_t set_pwm_temp_map(struct device *dev, |
| struct device_attribute *attr, const char *buf, size_t count) |
| { |
| struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
| int nr = sensor_attr->index; |
| |
| struct it87_data *data = dev_get_drvdata(dev); |
| long val; |
| u8 reg; |
| |
| /* |
| * This check can go away if we ever support automatic fan speed |
| * control on newer chips. |
| */ |
| if (!has_old_autopwm(data)) { |
| dev_notice(dev, "Mapping change disabled for safety reasons\n"); |
| return -EINVAL; |
| } |
| |
| if (kstrtol(buf, 10, &val) < 0) |
| return -EINVAL; |
| |
| switch (val) { |
| case (1 << 0): |
| reg = 0x00; |
| break; |
| case (1 << 1): |
| reg = 0x01; |
| break; |
| case (1 << 2): |
| reg = 0x02; |
| break; |
| default: |
| return -EINVAL; |
| } |
| |
| mutex_lock(&data->update_lock); |
| data->pwm_temp_map[nr] = reg; |
| /* |
| * If we are in automatic mode, write the temp mapping immediately; |
| * otherwise, just store it for later use. |
| */ |
| if (data->pwm_ctrl[nr] & 0x80) { |
| data->pwm_ctrl[nr] = 0x80 | data->pwm_temp_map[nr]; |
| it87_write_value(data, IT87_REG_PWM(nr), data->pwm_ctrl[nr]); |
| } |
| mutex_unlock(&data->update_lock); |
| return count; |
| } |
| |
| static ssize_t show_auto_pwm(struct device *dev, |
| struct device_attribute *attr, char *buf) |
| { |
| struct it87_data *data = it87_update_device(dev); |
| struct sensor_device_attribute_2 *sensor_attr = |
| to_sensor_dev_attr_2(attr); |
| int nr = sensor_attr->nr; |
| int point = sensor_attr->index; |
| |
| return sprintf(buf, "%d\n", |
| pwm_from_reg(data, data->auto_pwm[nr][point])); |
| } |
| |
| static ssize_t set_auto_pwm(struct device *dev, |
| struct device_attribute *attr, const char *buf, size_t count) |
| { |
| struct it87_data *data = dev_get_drvdata(dev); |
| struct sensor_device_attribute_2 *sensor_attr = |
| to_sensor_dev_attr_2(attr); |
| int nr = sensor_attr->nr; |
| int point = sensor_attr->index; |
| long val; |
| |
| if (kstrtol(buf, 10, &val) < 0 || val < 0 || val > 255) |
| return -EINVAL; |
| |
| mutex_lock(&data->update_lock); |
| data->auto_pwm[nr][point] = pwm_to_reg(data, val); |
| it87_write_value(data, IT87_REG_AUTO_PWM(nr, point), |
| data->auto_pwm[nr][point]); |
| mutex_unlock(&data->update_lock); |
| return count; |
| } |
| |
| static ssize_t show_auto_temp(struct device *dev, |
| struct device_attribute *attr, char *buf) |
| { |
| struct it87_data *data = it87_update_device(dev); |
| struct sensor_device_attribute_2 *sensor_attr = |
| to_sensor_dev_attr_2(attr); |
| int nr = sensor_attr->nr; |
| int point = sensor_attr->index; |
| |
| return sprintf(buf, "%d\n", TEMP_FROM_REG(data->auto_temp[nr][point])); |
| } |
| |
| static ssize_t set_auto_temp(struct device *dev, |
| struct device_attribute *attr, const char *buf, size_t count) |
| { |
| struct it87_data *data = dev_get_drvdata(dev); |
| struct sensor_device_attribute_2 *sensor_attr = |
| to_sensor_dev_attr_2(attr); |
| int nr = sensor_attr->nr; |
| int point = sensor_attr->index; |
| long val; |
| |
| if (kstrtol(buf, 10, &val) < 0 || val < -128000 || val > 127000) |
| return -EINVAL; |
| |
| mutex_lock(&data->update_lock); |
| data->auto_temp[nr][point] = TEMP_TO_REG(val); |
| it87_write_value(data, IT87_REG_AUTO_TEMP(nr, point), |
| data->auto_temp[nr][point]); |
| mutex_unlock(&data->update_lock); |
| return count; |
| } |
| |
| static SENSOR_DEVICE_ATTR_2(fan1_input, S_IRUGO, show_fan, NULL, 0, 0); |
| static SENSOR_DEVICE_ATTR_2(fan1_min, S_IRUGO | S_IWUSR, show_fan, set_fan, |
| 0, 1); |
| static SENSOR_DEVICE_ATTR(fan1_div, S_IRUGO | S_IWUSR, show_fan_div, |
| set_fan_div, 0); |
| |
| static SENSOR_DEVICE_ATTR_2(fan2_input, S_IRUGO, show_fan, NULL, 1, 0); |
| static SENSOR_DEVICE_ATTR_2(fan2_min, S_IRUGO | S_IWUSR, show_fan, set_fan, |
| 1, 1); |
| static SENSOR_DEVICE_ATTR(fan2_div, S_IRUGO | S_IWUSR, show_fan_div, |
| set_fan_div, 1); |
| |
| static SENSOR_DEVICE_ATTR_2(fan3_input, S_IRUGO, show_fan, NULL, 2, 0); |
| static SENSOR_DEVICE_ATTR_2(fan3_min, S_IRUGO | S_IWUSR, show_fan, set_fan, |
| 2, 1); |
| static SENSOR_DEVICE_ATTR(fan3_div, S_IRUGO | S_IWUSR, show_fan_div, |
| set_fan_div, 2); |
| |
| static SENSOR_DEVICE_ATTR_2(fan4_input, S_IRUGO, show_fan, NULL, 3, 0); |
| static SENSOR_DEVICE_ATTR_2(fan4_min, S_IRUGO | S_IWUSR, show_fan, set_fan, |
| 3, 1); |
| |
| static SENSOR_DEVICE_ATTR_2(fan5_input, S_IRUGO, show_fan, NULL, 4, 0); |
| static SENSOR_DEVICE_ATTR_2(fan5_min, S_IRUGO | S_IWUSR, show_fan, set_fan, |
| 4, 1); |
| |
| static SENSOR_DEVICE_ATTR_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 DEVICE_ATTR(pwm1_freq, S_IRUGO | S_IWUSR, show_pwm_freq, set_pwm_freq); |
| static SENSOR_DEVICE_ATTR(pwm1_auto_channels_temp, S_IRUGO | S_IWUSR, |
| show_pwm_temp_map, set_pwm_temp_map, 0); |
| static SENSOR_DEVICE_ATTR_2(pwm1_auto_point1_pwm, S_IRUGO | S_IWUSR, |
| show_auto_pwm, set_auto_pwm, 0, 0); |
| static SENSOR_DEVICE_ATTR_2(pwm1_auto_point2_pwm, S_IRUGO | S_IWUSR, |
| show_auto_pwm, set_auto_pwm, 0, 1); |
| static SENSOR_DEVICE_ATTR_2(pwm1_auto_point3_pwm, S_IRUGO | S_IWUSR, |
| show_auto_pwm, set_auto_pwm, 0, 2); |
| static SENSOR_DEVICE_ATTR_2(pwm1_auto_point4_pwm, S_IRUGO, |
| show_auto_pwm, NULL, 0, 3); |
| static SENSOR_DEVICE_ATTR_2(pwm1_auto_point1_temp, S_IRUGO | S_IWUSR, |
| show_auto_temp, set_auto_temp, 0, 1); |
| static SENSOR_DEVICE_ATTR_2(pwm1_auto_point1_temp_hyst, S_IRUGO | S_IWUSR, |
| show_auto_temp, set_auto_temp, 0, 0); |
| static SENSOR_DEVICE_ATTR_2(pwm1_auto_point2_temp, S_IRUGO | S_IWUSR, |
| show_auto_temp, set_auto_temp, 0, 2); |
| static SENSOR_DEVICE_ATTR_2(pwm1_auto_point3_temp, S_IRUGO | S_IWUSR, |
| show_auto_temp, set_auto_temp, 0, 3); |
| static SENSOR_DEVICE_ATTR_2(pwm1_auto_point4_temp, S_IRUGO | S_IWUSR, |
| show_auto_temp, set_auto_temp, 0, 4); |
| |
| static SENSOR_DEVICE_ATTR(pwm2_enable, S_IRUGO | S_IWUSR, |
| show_pwm_enable, set_pwm_enable, 1); |
| static SENSOR_DEVICE_ATTR(pwm2, S_IRUGO | S_IWUSR, show_pwm, set_pwm, 1); |
| static DEVICE_ATTR(pwm2_freq, S_IRUGO, show_pwm_freq, NULL); |
| static SENSOR_DEVICE_ATTR(pwm2_auto_channels_temp, S_IRUGO | S_IWUSR, |
| show_pwm_temp_map, set_pwm_temp_map, 1); |
| static SENSOR_DEVICE_ATTR_2(pwm2_auto_point1_pwm, S_IRUGO | S_IWUSR, |
| show_auto_pwm, set_auto_pwm, 1, 0); |
| static SENSOR_DEVICE_ATTR_2(pwm2_auto_point2_pwm, S_IRUGO | S_IWUSR, |
| show_auto_pwm, set_auto_pwm, 1, 1); |
| static SENSOR_DEVICE_ATTR_2(pwm2_auto_point3_pwm, S_IRUGO | S_IWUSR, |
| show_auto_pwm, set_auto_pwm, 1, 2); |
| static SENSOR_DEVICE_ATTR_2(pwm2_auto_point4_pwm, S_IRUGO, |
| show_auto_pwm, NULL, 1, 3); |
| static SENSOR_DEVICE_ATTR_2(pwm2_auto_point1_temp, S_IRUGO | S_IWUSR, |
| show_auto_temp, set_auto_temp, 1, 1); |
| static SENSOR_DEVICE_ATTR_2(pwm2_auto_point1_temp_hyst, S_IRUGO | S_IWUSR, |
| show_auto_temp, set_auto_temp, 1, 0); |
| static SENSOR_DEVICE_ATTR_2(pwm2_auto_point2_temp, S_IRUGO | S_IWUSR, |
| show_auto_temp, set_auto_temp, 1, 2); |
| static SENSOR_DEVICE_ATTR_2(pwm2_auto_point3_temp, S_IRUGO | S_IWUSR, |
| show_auto_temp, set_auto_temp, 1, 3); |
| static SENSOR_DEVICE_ATTR_2(pwm2_auto_point4_temp, S_IRUGO | S_IWUSR, |
| show_auto_temp, set_auto_temp, 1, 4); |
| |
| static SENSOR_DEVICE_ATTR(pwm3_enable, S_IRUGO | S_IWUSR, |
| show_pwm_enable, set_pwm_enable, 2); |
| static SENSOR_DEVICE_ATTR(pwm3, S_IRUGO | S_IWUSR, show_pwm, set_pwm, 2); |
| static DEVICE_ATTR(pwm3_freq, S_IRUGO, show_pwm_freq, NULL); |
| static SENSOR_DEVICE_ATTR(pwm3_auto_channels_temp, S_IRUGO | S_IWUSR, |
| show_pwm_temp_map, set_pwm_temp_map, 2); |
| static SENSOR_DEVICE_ATTR_2(pwm3_auto_point1_pwm, S_IRUGO | S_IWUSR, |
| show_auto_pwm, set_auto_pwm, 2, 0); |
| static SENSOR_DEVICE_ATTR_2(pwm3_auto_point2_pwm, S_IRUGO | S_IWUSR, |
| show_auto_pwm, set_auto_pwm, 2, 1); |
| static SENSOR_DEVICE_ATTR_2(pwm3_auto_point3_pwm, S_IRUGO | S_IWUSR, |
| show_auto_pwm, set_auto_pwm, 2, 2); |
| static SENSOR_DEVICE_ATTR_2(pwm3_auto_point4_pwm, S_IRUGO, |
| show_auto_pwm, NULL, 2, 3); |
| static SENSOR_DEVICE_ATTR_2(pwm3_auto_point1_temp, S_IRUGO | S_IWUSR, |
| show_auto_temp, set_auto_temp, 2, 1); |
| static SENSOR_DEVICE_ATTR_2(pwm3_auto_point1_temp_hyst, S_IRUGO | S_IWUSR, |
| show_auto_temp, set_auto_temp, 2, 0); |
| static SENSOR_DEVICE_ATTR_2(pwm3_auto_point2_temp, S_IRUGO | S_IWUSR, |
| show_auto_temp, set_auto_temp, 2, 2); |
| static SENSOR_DEVICE_ATTR_2(pwm3_auto_point3_temp, S_IRUGO | S_IWUSR, |
| show_auto_temp, set_auto_temp, 2, 3); |
| static SENSOR_DEVICE_ATTR_2(pwm3_auto_point4_temp, S_IRUGO | S_IWUSR, |
| show_auto_temp, set_auto_temp, 2, 4); |
| |
| /* Alarms */ |
| static ssize_t show_alarms(struct device *dev, struct device_attribute *attr, |
| char *buf) |
| { |
| struct it87_data *data = it87_update_device(dev); |
| return sprintf(buf, "%u\n", data->alarms); |
| } |
| static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL); |
| |
| static ssize_t show_alarm(struct device *dev, struct device_attribute *attr, |
| char *buf) |
| { |
| int bitnr = to_sensor_dev_attr(attr)->index; |
| struct it87_data *data = it87_update_device(dev); |
| return sprintf(buf, "%u\n", (data->alarms >> bitnr) & 1); |
| } |
| |
| static ssize_t clear_intrusion(struct device *dev, struct device_attribute |
| *attr, const char *buf, size_t count) |
| { |
| struct it87_data *data = dev_get_drvdata(dev); |
| long val; |
| int config; |
| |
| if (kstrtol(buf, 10, &val) < 0 || val != 0) |
| return -EINVAL; |
| |
| mutex_lock(&data->update_lock); |
| config = it87_read_value(data, IT87_REG_CONFIG); |
| if (config < 0) { |
| count = config; |
| } else { |
| config |= 1 << 5; |
| it87_write_value(data, IT87_REG_CONFIG, config); |
| /* Invalidate cache to force re-read */ |
| data->valid = 0; |
| } |
| mutex_unlock(&data->update_lock); |
| |
| return count; |
| } |
| |
| static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 8); |
| static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 9); |
| static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 10); |
| static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 11); |
| static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 12); |
| static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 13); |
| static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 14); |
| static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 15); |
| static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 0); |
| static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 1); |
| static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 2); |
| static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 3); |
| static SENSOR_DEVICE_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 6); |
| static SENSOR_DEVICE_ATTR(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) |
| { |
| int bitnr = to_sensor_dev_attr(attr)->index; |
| struct it87_data *data = it87_update_device(dev); |
| return sprintf(buf, "%u\n", (data->beeps >> bitnr) & 1); |
| } |
| static ssize_t set_beep(struct device *dev, struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| int bitnr = to_sensor_dev_attr(attr)->index; |
| struct it87_data *data = dev_get_drvdata(dev); |
| long val; |
| |
| if (kstrtol(buf, 10, &val) < 0 |
| || (val != 0 && val != 1)) |
| return -EINVAL; |
| |
| mutex_lock(&data->update_lock); |
| data->beeps = it87_read_value(data, IT87_REG_BEEP_ENABLE); |
| if (val) |
| data->beeps |= (1 << bitnr); |
| else |
| data->beeps &= ~(1 << bitnr); |
| it87_write_value(data, IT87_REG_BEEP_ENABLE, data->beeps); |
| mutex_unlock(&data->update_lock); |
| return count; |
| } |
| |
| static SENSOR_DEVICE_ATTR(in0_beep, S_IRUGO | S_IWUSR, |
| show_beep, set_beep, 1); |
| static SENSOR_DEVICE_ATTR(in1_beep, S_IRUGO, show_beep, NULL, 1); |
| static SENSOR_DEVICE_ATTR(in2_beep, S_IRUGO, show_beep, NULL, 1); |
| static SENSOR_DEVICE_ATTR(in3_beep, S_IRUGO, show_beep, NULL, 1); |
| static SENSOR_DEVICE_ATTR(in4_beep, S_IRUGO, show_beep, NULL, 1); |
| static SENSOR_DEVICE_ATTR(in5_beep, S_IRUGO, show_beep, NULL, 1); |
| static SENSOR_DEVICE_ATTR(in6_beep, S_IRUGO, show_beep, NULL, 1); |
| static SENSOR_DEVICE_ATTR(in7_beep, S_IRUGO, show_beep, NULL, 1); |
| /* fanX_beep writability is set later */ |
| static SENSOR_DEVICE_ATTR(fan1_beep, S_IRUGO, show_beep, set_beep, 0); |
| static SENSOR_DEVICE_ATTR(fan2_beep, S_IRUGO, show_beep, set_beep, 0); |
| static SENSOR_DEVICE_ATTR(fan3_beep, S_IRUGO, show_beep, set_beep, 0); |
| static SENSOR_DEVICE_ATTR(fan4_beep, S_IRUGO, show_beep, set_beep, 0); |
| static SENSOR_DEVICE_ATTR(fan5_beep, S_IRUGO, show_beep, set_beep, 0); |
| static SENSOR_DEVICE_ATTR(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 show_vrm_reg(struct device *dev, struct device_attribute *attr, |
| char *buf) |
| { |
| struct it87_data *data = dev_get_drvdata(dev); |
| return sprintf(buf, "%u\n", data->vrm); |
| } |
| static ssize_t store_vrm_reg(struct device *dev, struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| struct it87_data *data = dev_get_drvdata(dev); |
| unsigned long val; |
| |
| if (kstrtoul(buf, 10, &val) < 0) |
| return -EINVAL; |
| |
| data->vrm = val; |
| |
| return count; |
| } |
| static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg); |
| |
| static ssize_t show_vid_reg(struct device *dev, struct device_attribute *attr, |
| char *buf) |
| { |
| struct it87_data *data = it87_update_device(dev); |
| return sprintf(buf, "%ld\n", (long) vid_from_reg(data->vid, data->vrm)); |
| } |
| static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL); |
| |
| static ssize_t show_label(struct device *dev, struct device_attribute *attr, |
| char *buf) |
| { |
| static const char * const labels[] = { |
| "+5V", |
| "5VSB", |
| "Vbat", |
| }; |
| static const char * const labels_it8721[] = { |
| "+3.3V", |
| "3VSB", |
| "Vbat", |
| }; |
| struct it87_data *data = dev_get_drvdata(dev); |
| int nr = to_sensor_dev_attr(attr)->index; |
| const char *label; |
| |
| if (has_12mv_adc(data) || has_10_9mv_adc(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); |
| /* special AVCC3 IT8603E in9 */ |
| static SENSOR_DEVICE_ATTR(in9_label, S_IRUGO, show_label, NULL, 0); |
| |
| static ssize_t show_name(struct device *dev, struct device_attribute |
| *devattr, char *buf) |
| { |
| struct it87_data *data = dev_get_drvdata(dev); |
| return sprintf(buf, "%s\n", data->name); |
| } |
| static DEVICE_ATTR(name, S_IRUGO, show_name, NULL); |
| |
| static struct attribute *it87_attributes_in[10][5] = { |
| { |
| &sensor_dev_attr_in0_input.dev_attr.attr, |
| &sensor_dev_attr_in0_min.dev_attr.attr, |
| &sensor_dev_attr_in0_max.dev_attr.attr, |
| &sensor_dev_attr_in0_alarm.dev_attr.attr, |
| NULL |
| }, { |
| &sensor_dev_attr_in1_input.dev_attr.attr, |
| &sensor_dev_attr_in1_min.dev_attr.attr, |
| &sensor_dev_attr_in1_max.dev_attr.attr, |
| &sensor_dev_attr_in1_alarm.dev_attr.attr, |
| NULL |
| }, { |
| &sensor_dev_attr_in2_input.dev_attr.attr, |
| &sensor_dev_attr_in2_min.dev_attr.attr, |
| &sensor_dev_attr_in2_max.dev_attr.attr, |
| &sensor_dev_attr_in2_alarm.dev_attr.attr, |
| NULL |
| }, { |
| &sensor_dev_attr_in3_input.dev_attr.attr, |
| &sensor_dev_attr_in3_min.dev_attr.attr, |
| &sensor_dev_attr_in3_max.dev_attr.attr, |
| &sensor_dev_attr_in3_alarm.dev_attr.attr, |
| NULL |
| }, { |
| &sensor_dev_attr_in4_input.dev_attr.attr, |
| &sensor_dev_attr_in4_min.dev_attr.attr, |
| &sensor_dev_attr_in4_max.dev_attr.attr, |
| &sensor_dev_attr_in4_alarm.dev_attr.attr, |
| NULL |
| }, { |
| &sensor_dev_attr_in5_input.dev_attr.attr, |
| &sensor_dev_attr_in5_min.dev_attr.attr, |
| &sensor_dev_attr_in5_max.dev_attr.attr, |
| &sensor_dev_attr_in5_alarm.dev_attr.attr, |
| NULL |
| }, { |
| &sensor_dev_attr_in6_input.dev_attr.attr, |
| &sensor_dev_attr_in6_min.dev_attr.attr, |
| &sensor_dev_attr_in6_max.dev_attr.attr, |
| &sensor_dev_attr_in6_alarm.dev_attr.attr, |
| NULL |
| }, { |
| &sensor_dev_attr_in7_input.dev_attr.attr, |
| &sensor_dev_attr_in7_min.dev_attr.attr, |
| &sensor_dev_attr_in7_max.dev_attr.attr, |
| &sensor_dev_attr_in7_alarm.dev_attr.attr, |
| NULL |
| }, { |
| &sensor_dev_attr_in8_input.dev_attr.attr, |
| NULL |
| }, { |
| &sensor_dev_attr_in9_input.dev_attr.attr, |
| NULL |
| } }; |
| |
| static const struct attribute_group it87_group_in[10] = { |
| { .attrs = it87_attributes_in[0] }, |
| { .attrs = it87_attributes_in[1] }, |
| { .attrs = it87_attributes_in[2] }, |
| { .attrs = it87_attributes_in[3] }, |
| { .attrs = it87_attributes_in[4] }, |
| { .attrs = it87_attributes_in[5] }, |
| { .attrs = it87_attributes_in[6] }, |
| { .attrs = it87_attributes_in[7] }, |
| { .attrs = it87_attributes_in[8] }, |
| { .attrs = it87_attributes_in[9] }, |
| }; |
| |
| static struct attribute *it87_attributes_temp[3][6] = { |
| { |
| &sensor_dev_attr_temp1_input.dev_attr.attr, |
| &sensor_dev_attr_temp1_max.dev_attr.attr, |
| &sensor_dev_attr_temp1_min.dev_attr.attr, |
| &sensor_dev_attr_temp1_type.dev_attr.attr, |
| &sensor_dev_attr_temp1_alarm.dev_attr.attr, |
| NULL |
| } , { |
| &sensor_dev_attr_temp2_input.dev_attr.attr, |
| &sensor_dev_attr_temp2_max.dev_attr.attr, |
| &sensor_dev_attr_temp2_min.dev_attr.attr, |
| &sensor_dev_attr_temp2_type.dev_attr.attr, |
| &sensor_dev_attr_temp2_alarm.dev_attr.attr, |
| NULL |
| } , { |
| &sensor_dev_attr_temp3_input.dev_attr.attr, |
| &sensor_dev_attr_temp3_max.dev_attr.attr, |
| &sensor_dev_attr_temp3_min.dev_attr.attr, |
| &sensor_dev_attr_temp3_type.dev_attr.attr, |
| &sensor_dev_attr_temp3_alarm.dev_attr.attr, |
| NULL |
| } }; |
| |
| static const struct attribute_group it87_group_temp[3] = { |
| { .attrs = it87_attributes_temp[0] }, |
| { .attrs = it87_attributes_temp[1] }, |
| { .attrs = it87_attributes_temp[2] }, |
| }; |
| |
| static struct attribute *it87_attributes_temp_offset[] = { |
| &sensor_dev_attr_temp1_offset.dev_attr.attr, |
| &sensor_dev_attr_temp2_offset.dev_attr.attr, |
| &sensor_dev_attr_temp3_offset.dev_attr.attr, |
| }; |
| |
| static struct attribute *it87_attributes[] = { |
| &dev_attr_alarms.attr, |
| &sensor_dev_attr_intrusion0_alarm.dev_attr.attr, |
| &dev_attr_name.attr, |
| NULL |
| }; |
| |
| static const struct attribute_group it87_group = { |
| .attrs = it87_attributes, |
| }; |
| |
| static struct attribute *it87_attributes_in_beep[] = { |
| &sensor_dev_attr_in0_beep.dev_attr.attr, |
| &sensor_dev_attr_in1_beep.dev_attr.attr, |
| &sensor_dev_attr_in2_beep.dev_attr.attr, |
| &sensor_dev_attr_in3_beep.dev_attr.attr, |
| &sensor_dev_attr_in4_beep.dev_attr.attr, |
| &sensor_dev_attr_in5_beep.dev_attr.attr, |
| &sensor_dev_attr_in6_beep.dev_attr.attr, |
| &sensor_dev_attr_in7_beep.dev_attr.attr, |
| NULL, |
| NULL, |
| }; |
| |
| static struct attribute *it87_attributes_temp_beep[] = { |
| &sensor_dev_attr_temp1_beep.dev_attr.attr, |
| &sensor_dev_attr_temp2_beep.dev_attr.attr, |
| &sensor_dev_attr_temp3_beep.dev_attr.attr, |
| }; |
| |
| static struct attribute *it87_attributes_fan[6][3+1] = { { |
| &sensor_dev_attr_fan1_input.dev_attr.attr, |
| &sensor_dev_attr_fan1_min.dev_attr.attr, |
| &sensor_dev_attr_fan1_alarm.dev_attr.attr, |
| NULL |
| }, { |
| &sensor_dev_attr_fan2_input.dev_attr.attr, |
| &sensor_dev_attr_fan2_min.dev_attr.attr, |
| &sensor_dev_attr_fan2_alarm.dev_attr.attr, |
| NULL |
| }, { |
| &sensor_dev_attr_fan3_input.dev_attr.attr, |
| &sensor_dev_attr_fan3_min.dev_attr.attr, |
| &sensor_dev_attr_fan3_alarm.dev_attr.attr, |
| NULL |
| }, { |
| &sensor_dev_attr_fan4_input.dev_attr.attr, |
| &sensor_dev_attr_fan4_min.dev_attr.attr, |
| &sensor_dev_attr_fan4_alarm.dev_attr.attr, |
| NULL |
| }, { |
| &sensor_dev_attr_fan5_input.dev_attr.attr, |
| &sensor_dev_attr_fan5_min.dev_attr.attr, |
| &sensor_dev_attr_fan5_alarm.dev_attr.attr, |
| NULL |
| }, { |
| &sensor_dev_attr_fan6_input.dev_attr.attr, |
| &sensor_dev_attr_fan6_min.dev_attr.attr, |
| &sensor_dev_attr_fan6_alarm.dev_attr.attr, |
| NULL |
| } }; |
| |
| static const struct attribute_group it87_group_fan[6] = { |
| { .attrs = it87_attributes_fan[0] }, |
| { .attrs = it87_attributes_fan[1] }, |
| { .attrs = it87_attributes_fan[2] }, |
| { .attrs = it87_attributes_fan[3] }, |
| { .attrs = it87_attributes_fan[4] }, |
| { .attrs = it87_attributes_fan[5] }, |
| }; |
| |
| static const struct attribute *it87_attributes_fan_div[] = { |
| &sensor_dev_attr_fan1_div.dev_attr.attr, |
| &sensor_dev_attr_fan2_div.dev_attr.attr, |
| &sensor_dev_attr_fan3_div.dev_attr.attr, |
| }; |
| |
| static struct attribute *it87_attributes_pwm[3][4+1] = { { |
| &sensor_dev_attr_pwm1_enable.dev_attr.attr, |
| &sensor_dev_attr_pwm1.dev_attr.attr, |
| &dev_attr_pwm1_freq.attr, |
| &sensor_dev_attr_pwm1_auto_channels_temp.dev_attr.attr, |
| NULL |
| }, { |
| &sensor_dev_attr_pwm2_enable.dev_attr.attr, |
| &sensor_dev_attr_pwm2.dev_attr.attr, |
| &dev_attr_pwm2_freq.attr, |
| &sensor_dev_attr_pwm2_auto_channels_temp.dev_attr.attr, |
| NULL |
| }, { |
| &sensor_dev_attr_pwm3_enable.dev_attr.attr, |
| &sensor_dev_attr_pwm3.dev_attr.attr, |
| &dev_attr_pwm3_freq.attr, |
| &sensor_dev_attr_pwm3_auto_channels_temp.dev_attr.attr, |
| NULL |
| } }; |
| |
| static const struct attribute_group it87_group_pwm[3] = { |
| { .attrs = it87_attributes_pwm[0] }, |
| { .attrs = it87_attributes_pwm[1] }, |
| { .attrs = it87_attributes_pwm[2] }, |
| }; |
| |
| static struct attribute *it87_attributes_autopwm[3][9+1] = { { |
| &sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr, |
| &sensor_dev_attr_pwm1_auto_point2_pwm.dev_attr.attr, |
| &sensor_dev_attr_pwm1_auto_point3_pwm.dev_attr.attr, |
| &sensor_dev_attr_pwm1_auto_point4_pwm.dev_attr.attr, |
| &sensor_dev_attr_pwm1_auto_point1_temp.dev_attr.attr, |
| &sensor_dev_attr_pwm1_auto_point1_temp_hyst.dev_attr.attr, |
| &sensor_dev_attr_pwm1_auto_point2_temp.dev_attr.attr, |
| &sensor_dev_attr_pwm1_auto_point3_temp.dev_attr.attr, |
| &sensor_dev_attr_pwm1_auto_point4_temp.dev_attr.attr, |
| NULL |
| }, { |
| &sensor_dev_attr_pwm2_auto_point1_pwm.dev_attr.attr, |
| &sensor_dev_attr_pwm2_auto_point2_pwm.dev_attr.attr, |
| &sensor_dev_attr_pwm2_auto_point3_pwm.dev_attr.attr, |
| &sensor_dev_attr_pwm2_auto_point4_pwm.dev_attr.attr, |
| &sensor_dev_attr_pwm2_auto_point1_temp.dev_attr.attr, |
| &sensor_dev_attr_pwm2_auto_point1_temp_hyst.dev_attr.attr, |
| &sensor_dev_attr_pwm2_auto_point2_temp.dev_attr.attr, |
| &sensor_dev_attr_pwm2_auto_point3_temp.dev_attr.attr, |
| &sensor_dev_attr_pwm2_auto_point4_temp.dev_attr.attr, |
| NULL |
| }, { |
| &sensor_dev_attr_pwm3_auto_point1_pwm.dev_attr.attr, |
| &sensor_dev_attr_pwm3_auto_point2_pwm.dev_attr.attr, |
| &sensor_dev_attr_pwm3_auto_point3_pwm.dev_attr.attr, |
| &sensor_dev_attr_pwm3_auto_point4_pwm.dev_attr.attr, |
| &sensor_dev_attr_pwm3_auto_point1_temp.dev_attr.attr, |
| &sensor_dev_attr_pwm3_auto_point1_temp_hyst.dev_attr.attr, |
| &sensor_dev_attr_pwm3_auto_point2_temp.dev_attr.attr, |
| &sensor_dev_attr_pwm3_auto_point3_temp.dev_attr.attr, |
| &sensor_dev_attr_pwm3_auto_point4_temp.dev_attr.attr, |
| NULL |
| } }; |
| |
| static const struct attribute_group it87_group_autopwm[3] = { |
| { .attrs = it87_attributes_autopwm[0] }, |
| { .attrs = it87_attributes_autopwm[1] }, |
| { .attrs = it87_attributes_autopwm[2] }, |
| }; |
| |
| static struct attribute *it87_attributes_fan_beep[] = { |
| &sensor_dev_attr_fan1_beep.dev_attr.attr, |
| &sensor_dev_attr_fan2_beep.dev_attr.attr, |
| &sensor_dev_attr_fan3_beep.dev_attr.attr, |
| &sensor_dev_attr_fan4_beep.dev_attr.attr, |
| &sensor_dev_attr_fan5_beep.dev_attr.attr, |
| &sensor_dev_attr_fan6_beep.dev_attr.attr, |
| }; |
| |
| static struct attribute *it87_attributes_vid[] = { |
| &dev_attr_vrm.attr, |
| &dev_attr_cpu0_vid.attr, |
| NULL |
| }; |
| |
| static const struct attribute_group it87_group_vid = { |
| .attrs = it87_attributes_vid, |
| }; |
| |
| static struct attribute *it87_attributes_label[] = { |
| &sensor_dev_attr_in3_label.dev_attr.attr, |
| &sensor_dev_attr_in7_label.dev_attr.attr, |
| &sensor_dev_attr_in8_label.dev_attr.attr, |
| &sensor_dev_attr_in9_label.dev_attr.attr, |
| NULL |
| }; |
| |
| static const struct attribute_group it87_group_label = { |
| .attrs = it87_attributes_label, |
| }; |
| |
| /* SuperIO detection - will change isa_address if a chip is found */ |
| static int __init it87_find(unsigned short *address, |
| struct it87_sio_data *sio_data) |
| { |
| int err; |
| u16 chip_type; |
| const char *board_vendor, *board_name; |
| const struct it87_devices *config; |
| |
| err = superio_enter(); |
| if (err) |
| return err; |
| |
| err = -ENODEV; |
| chip_type = force_id ? force_id : superio_inw(DEVID); |
| |
| switch (chip_type) { |
| case IT8705F_DEVID: |
| sio_data->type = it87; |
| break; |
| case IT8712F_DEVID: |
| sio_data->type = it8712; |
| break; |
| case IT8716F_DEVID: |
| case IT8726F_DEVID: |
| sio_data->type = it8716; |
| break; |
| case IT8718F_DEVID: |
| sio_data->type = it8718; |
| break; |
| case IT8720F_DEVID: |
| sio_data->type = it8720; |
| break; |
| case IT8721F_DEVID: |
| sio_data->type = it8721; |
| break; |
| case IT8728F_DEVID: |
| sio_data->type = it8728; |
| break; |
| case IT8732F_DEVID: |
| sio_data->type = it8732; |
| 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 0xffff: /* No device at all */ |
| goto exit; |
| default: |
| pr_debug("Unsupported chip (DEVID=0x%x)\n", chip_type); |
| goto exit; |
| } |
| |
| superio_select(PME); |
| if (!(superio_inb(IT87_ACT_REG) & 0x01)) { |
| pr_info("Device not activated, skipping\n"); |
| goto exit; |
| } |
| |
| *address = superio_inw(IT87_BASE_REG) & ~(IT87_EXTENT - 1); |
| if (*address == 0) { |
| pr_info("Base address not set, skipping\n"); |
| goto exit; |
| } |
| |
| err = 0; |
| sio_data->revision = superio_inb(DEVREV) & 0x0f; |
| pr_info("Found IT%04x%s chip at 0x%x, revision %d\n", chip_type, |
| it87_devices[sio_data->type].suffix, |
| *address, sio_data->revision); |
| |
| config = &it87_devices[sio_data->type]; |
| |
| /* in7 (VSB or VCCH5V) is always internal on some chips */ |
| if (has_in7_internal(config)) |
| sio_data->internal |= (1 << 1); |
| |
| /* in8 (Vbat) is always internal */ |
| sio_data->internal |= (1 << 2); |
| |
| /* Only the IT8603E has in9 */ |
| if (sio_data->type != it8603) |
| sio_data->skip_in |= (1 << 9); |
| |
| 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(5); |
| sio_data->beep_pin = superio_inb(IT87_SIO_BEEP_PIN_REG) & 0x3f; |
| } else if (sio_data->type == it8783) { |
| int reg25, reg27, reg2a, reg2c, regef; |
| |
| superio_select(GPIO); |
| |
| reg25 = superio_inb(IT87_SIO_GPIO1_REG); |
| reg27 = superio_inb(IT87_SIO_GPIO3_REG); |
| reg2a = superio_inb(IT87_SIO_PINX1_REG); |
| reg2c = superio_inb(IT87_SIO_PINX2_REG); |
| regef = superio_inb(IT87_SIO_SPI_REG); |
| |
| /* Check if fan3 is there or not */ |
| if ((reg27 & (1 << 0)) || !(reg2c & (1 << 2))) |
| sio_data->skip_fan |= (1 << 2); |
| if ((reg25 & (1 << 4)) |
| || (!(reg2a & (1 << 1)) && (regef & (1 << 0)))) |
| sio_data->skip_pwm |= (1 << 2); |
| |
| /* Check if fan2 is there or not */ |
| if (reg27 & (1 << 7)) |
| sio_data->skip_fan |= (1 << 1); |
| if (reg27 & (1 << 3)) |
| sio_data->skip_pwm |= (1 << 1); |
| |
| /* VIN5 */ |
| if ((reg27 & (1 << 0)) || (reg2c & (1 << 2))) |
| sio_data->skip_in |= (1 << 5); /* No VIN5 */ |
| |
| /* VIN6 */ |
| if (reg27 & (1 << 1)) |
| sio_data->skip_in |= (1 << 6); /* No VIN6 */ |
| |
| /* |
| * VIN7 |
| * Does not depend on bit 2 of Reg2C, contrary to datasheet. |
| */ |
| if (reg27 & (1 << 2)) { |
| /* |
| * The data sheet is a bit unclear regarding the |
| * internal voltage divider for VCCH5V. It says |
| * "This bit enables and switches VIN7 (pin 91) to the |
| * internal voltage divider for VCCH5V". |
| * This is different to other chips, where the internal |
| * voltage divider would connect VIN7 to an internal |
| * voltage source. Maybe that is the case here as well. |
| * |
| * Since we don't know for sure, re-route it if that is |
| * not the case, and ask the user to report if the |
| * resulting voltage is sane. |
| */ |
| if (!(reg2c & (1 << 1))) { |
| reg2c |= (1 << 1); |
| superio_outb(IT87_SIO_PINX2_REG, reg2c); |
| pr_notice("Routing internal VCCH5V to in7.\n"); |
| } |
| pr_notice("in7 routed to internal voltage divider, with external pin disabled.\n"); |
| pr_notice("Please report if it displays a reasonable voltage.\n"); |
| } |
| |
| if (reg2c & (1 << 0)) |
| sio_data->internal |= (1 << 0); |
| if (reg2c & (1 << 1)) |
| sio_data->internal |= (1 << 1); |
| |
| sio_data->beep_pin = superio_inb(IT87_SIO_BEEP_PIN_REG) & 0x3f; |
| } else if (sio_data->type == it8603) { |
| int reg27, reg29; |
| |
| superio_select(GPIO); |
| |
| reg27 = superio_inb(IT87_SIO_GPIO3_REG); |
| |
| /* Check if fan3 is there or not */ |
| if (reg27 & (1 << 6)) |
| sio_data->skip_pwm |= (1 << 2); |
| if (reg27 & (1 << 7)) |
| sio_data->skip_fan |= (1 << 2); |
| |
| /* Check if fan2 is there or not */ |
| reg29 = superio_inb(IT87_SIO_GPIO5_REG); |
| if (reg29 & (1 << 1)) |
| sio_data->skip_pwm |= (1 << 1); |
| if (reg29 & (1 << 2)) |
| sio_data->skip_fan |= (1 << 1); |
| |
| sio_data->skip_in |= (1 << 5); /* No VIN5 */ |
| sio_data->skip_in |= (1 << 6); /* No VIN6 */ |
| |
| sio_data->internal |= (1 << 3); /* in9 is AVCC */ |
| |
| sio_data->beep_pin = superio_inb(IT87_SIO_BEEP_PIN_REG) & 0x3f; |
| } else if (sio_data->type == it8620) { |
| int reg; |
| |
| superio_select(GPIO); |
| |
| /* Check for fan4, fan5 */ |
| reg = superio_inb(IT87_SIO_GPIO2_REG); |
| if (!(reg & (1 << 5))) |
| sio_data->skip_fan |= (1 << 3); |
| if (!(reg & (1 << 4))) |
| sio_data->skip_fan |= (1 << 4); |
| |
| /* Check for pwm3, fan3 */ |
| reg = superio_inb(IT87_SIO_GPIO3_REG); |
| if (reg & (1 << 6)) |
| sio_data->skip_pwm |= (1 << 2); |
| if (reg & (1 << 7)) |
| sio_data->skip_fan |= (1 << 2); |
| |
| /* Check for pwm2, fan2 */ |
| reg = superio_inb(IT87_SIO_GPIO5_REG); |
| if (reg & (1 << 1)) |
| sio_data->skip_pwm |= (1 << 1); |
| if (reg & (1 << 2)) |
| sio_data->skip_fan |= (1 << 1); |
| |
| sio_data->beep_pin = superio_inb(IT87_SIO_BEEP_PIN_REG) & 0x3f; |
| } else { |
| int reg; |
| bool uart6; |
| |
| superio_select(GPIO); |
| |
| reg = superio_inb(IT87_SIO_GPIO3_REG); |
| if (!sio_data->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 & (1 << 6)) |
| sio_data->skip_pwm |= (1 << 2); |
| if (reg & (1 << 7)) |
| sio_data->skip_fan |= (1 << 2); |
| |
| /* Check if fan2 is there or not */ |
| reg = superio_inb(IT87_SIO_GPIO5_REG); |
| if (reg & (1 << 1)) |
| sio_data->skip_pwm |= (1 << 1); |
| if (reg & (1 << 2)) |
| sio_data->skip_fan |= (1 << 1); |
| |
| if ((sio_data->type == it8718 || sio_data->type == it8720) |
| && !(sio_data->skip_vid)) |
| sio_data->vid_value = superio_inb(IT87_SIO_VID_REG); |
| |
| reg = superio_inb(IT87_SIO_PINX2_REG); |
| |
| uart6 = sio_data->type == it8782 && (reg & (1 << 2)); |
| |
| /* |
| * The IT8720F has no VIN7 pin, so VCCH should always be |
| * routed internally to VIN7 with an internal divider. |
| * Curiously, there still is a configuration bit to control |
| * this, which means it can be set incorrectly. And even |
| * more curiously, many boards out there are improperly |
| * configured, even though the IT8720F datasheet claims |
| * that the internal routing of VCCH to VIN7 is the default |
| * setting. So we force the internal routing in this case. |
| * |
| * On IT8782F, VIN7 is multiplexed with one of the UART6 pins. |
| * If UART6 is enabled, re-route VIN7 to the internal divider |
| * if that is not already the case. |
| */ |
| if ((sio_data->type == it8720 || uart6) && !(reg & (1 << 1))) { |
| reg |= (1 << 1); |
| superio_outb(IT87_SIO_PINX2_REG, reg); |
| pr_notice("Routing internal VCCH to in7\n"); |
| } |
| if (reg & (1 << 0)) |
| sio_data->internal |= (1 << 0); |
| if (reg & (1 << 1)) |
| sio_data->internal |= (1 << 1); |
| |
| /* |
| * On IT8782F, UART6 pins overlap with VIN5, VIN6, and VIN7. |
| * While VIN7 can be routed to the internal voltage divider, |
| * VIN5 and VIN6 are not available if UART6 is enabled. |
| * |
| * Also, temp3 is not available if UART6 is enabled and TEMPIN3 |
| * is the temperature source. Since we can not read the |
| * temperature source here, skip_temp is preliminary. |
| */ |
| if (uart6) { |
| sio_data->skip_in |= (1 << 5) | (1 << 6); |
| sio_data->skip_temp |= (1 << 2); |
| } |
| |
| sio_data->beep_pin = superio_inb(IT87_SIO_BEEP_PIN_REG) & 0x3f; |
| } |
| if (sio_data->beep_pin) |
| pr_info("Beeping is supported\n"); |
| |
| /* Disable specific features based on DMI strings */ |
| board_vendor = dmi_get_system_info(DMI_BOARD_VENDOR); |
| board_name = dmi_get_system_info(DMI_BOARD_NAME); |
| if (board_vendor && board_name) { |
| if (strcmp(board_vendor, "nVIDIA") == 0 |
| && strcmp(board_name, "FN68PT") == 0) { |
| /* |
| * On the Shuttle SN68PT, FAN_CTL2 is apparently not |
| * connected to a fan, but to something else. One user |
| * has reported instant system power-off when changing |
| * the PWM2 duty cycle, so we disable it. |
| * I use the board name string as the trigger in case |
| * the same board is ever used in other systems. |
| */ |
| pr_info("Disabling pwm2 due to hardware constraints\n"); |
| sio_data->skip_pwm = (1 << 1); |
| } |
| } |
| |
| exit: |
| superio_exit(); |
| return err; |
| } |
| |
| static void it87_remove_files(struct device *dev) |
| { |
| struct it87_data *data = platform_get_drvdata(pdev); |
| struct it87_sio_data *sio_data = dev_get_platdata(dev); |
| int i; |
| |
| sysfs_remove_group(&dev->kobj, &it87_group); |
| for (i = 0; i < 10; i++) { |
| if (sio_data->skip_in & (1 << i)) |
| continue; |
| sysfs_remove_group(&dev->kobj, &it87_group_in[i]); |
| if (it87_attributes_in_beep[i]) |
| sysfs_remove_file(&dev->kobj, |
| it87_attributes_in_beep[i]); |
| } |
| for (i = 0; i < 3; i++) { |
| if (!(data->has_temp & (1 << i))) |
| continue; |
| sysfs_remove_group(&dev->kobj, &it87_group_temp[i]); |
| if (has_temp_offset(data)) |
| sysfs_remove_file(&dev->kobj, |
| it87_attributes_temp_offset[i]); |
| if (sio_data->beep_pin) |
| sysfs_remove_file(&dev->kobj, |
| it87_attributes_temp_beep[i]); |
| } |
| for (i = 0; i < 6; i++) { |
| if (!(data->has_fan & (1 << i))) |
| continue; |
| sysfs_remove_group(&dev->kobj, &it87_group_fan[i]); |
| if (sio_data->beep_pin) |
| sysfs_remove_file(&dev->kobj, |
| it87_attributes_fan_beep[i]); |
| if (i < 3 && !has_16bit_fans(data)) |
| sysfs_remove_file(&dev->kobj, |
| it87_attributes_fan_div[i]); |
| } |
| for (i = 0; i < 3; i++) { |
| if (sio_data->skip_pwm & (1 << i)) |
| continue; |
| sysfs_remove_group(&dev->kobj, &it87_group_pwm[i]); |
| if (has_old_autopwm(data)) |
| sysfs_remove_group(&dev->kobj, |
| &it87_group_autopwm[i]); |
| } |
| if (!sio_data->skip_vid) |
| sysfs_remove_group(&dev->kobj, &it87_group_vid); |
| sysfs_remove_group(&dev->kobj, &it87_group_label); |
| } |
| |
| static int it87_probe(struct platform_device *pdev) |
| { |
| struct it87_data *data; |
| struct resource *res; |
| struct device *dev = &pdev->dev; |
| struct it87_sio_data *sio_data = dev_get_platdata(dev); |
| int err = 0, i; |
| int enable_pwm_interface; |
| int fan_beep_need_rw; |
| |
| res = platform_get_resource(pdev, IORESOURCE_IO, 0); |
| if (!devm_request_region(&pdev->dev, res->start, IT87_EC_EXTENT, |
| DRVNAME)) { |
| dev_err(dev, "Failed to request region 0x%lx-0x%lx\n", |
| (unsigned long)res->start, |
| (unsigned long)(res->start + IT87_EC_EXTENT - 1)); |
| return -EBUSY; |
| } |
| |
| data = devm_kzalloc(&pdev->dev, sizeof(struct it87_data), GFP_KERNEL); |
| if (!data) |
| return -ENOMEM; |
| |
| data->addr = res->start; |
| data->type = sio_data->type; |
| data->features = it87_devices[sio_data->type].features; |
| data->peci_mask = it87_devices[sio_data->type].peci_mask; |
| data->old_peci_mask = it87_devices[sio_data->type].old_peci_mask; |
| data->name = it87_devices[sio_data->type].name; |
| /* |
| * IT8705F Datasheet 0.4.1, 3h == Version G. |
| * IT8712F Datasheet 0.9.1, section 8.3.5 indicates 8h == Version J. |
| * These are the first revisions with 16-bit tachometer support. |
| */ |
| switch (data->type) { |
| case it87: |
| if (sio_data->revision >= 0x03) { |
| data->features &= ~FEAT_OLD_AUTOPWM; |
| data->features |= FEAT_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; |
| } |
| |
| /* Now, we do the remaining detection. */ |
| if ((it87_read_value(data, IT87_REG_CONFIG) & 0x80) |
| || it87_read_value(data, IT87_REG_CHIPID) != 0x90) |
| return -ENODEV; |
| |
| platform_set_drvdata(pdev, data); |
| |
| mutex_init(&data->update_lock); |
| |
| /* Check PWM configuration */ |
| enable_pwm_interface = it87_check_pwm(dev); |
| |
| /* Starting with IT8721F, we handle scaling of internal voltages */ |
| if (has_12mv_adc(data)) { |
| if (sio_data->internal & (1 << 0)) |
| data->in_scaled |= (1 << 3); /* in3 is AVCC */ |
| if (sio_data->internal & (1 << 1)) |
| data->in_scaled |= (1 << 7); /* in7 is VSB */ |
| if (sio_data->internal & (1 << 2)) |
| data->in_scaled |= (1 << 8); /* in8 is Vbat */ |
| if (sio_data->internal & (1 << 3)) |
| data->in_scaled |= (1 << 9); /* in9 is AVCC */ |
| } else if (sio_data->type == it8781 || sio_data->type == it8782 || |
| sio_data->type == it8783) { |
| if (sio_data->internal & (1 << 0)) |
| data->in_scaled |= (1 << 3); /* in3 is VCC5V */ |
| if (sio_data->internal & (1 << 1)) |
| data->in_scaled |= (1 << 7); /* in7 is VCCH5V */ |
| } |
| |
| data->has_temp = 0x07; |
| if (sio_data->skip_temp & (1 << 2)) { |
| if (sio_data->type == it8782 |
| && !(it87_read_value(data, IT87_REG_TEMP_EXTRA) & 0x80)) |
| data->has_temp &= ~(1 << 2); |
| } |
| |
| /* Initialize the IT87 chip */ |
| it87_init_device(pdev); |
| |
| /* Register sysfs hooks */ |
| err = sysfs_create_group(&dev->kobj, &it87_group); |
| if (err) |
| return err; |
| |
| for (i = 0; i < 10; i++) { |
| if (sio_data->skip_in & (1 << i)) |
| continue; |
| err = sysfs_create_group(&dev->kobj, &it87_group_in[i]); |
| if (err) |
| goto error; |
| if (sio_data->beep_pin && it87_attributes_in_beep[i]) { |
| err = sysfs_create_file(&dev->kobj, |
| it87_attributes_in_beep[i]); |
| if (err) |
| goto error; |
| } |
| } |
| |
| for (i = 0; i < 3; i++) { |
| if (!(data->has_temp & (1 << i))) |
| continue; |
| err = sysfs_create_group(&dev->kobj, &it87_group_temp[i]); |
| if (err) |
| goto error; |
| if (has_temp_offset(data)) { |
| err = sysfs_create_file(&dev->kobj, |
| it87_attributes_temp_offset[i]); |
| if (err) |
| goto error; |
| } |
| if (sio_data->beep_pin) { |
| err = sysfs_create_file(&dev->kobj, |
| it87_attributes_temp_beep[i]); |
| if (err) |
| goto error; |
| } |
| } |
| |
| /* Do not create fan files for disabled fans */ |
| fan_beep_need_rw = 1; |
| for (i = 0; i < 6; i++) { |
| if (!(data->has_fan & (1 << i))) |
| continue; |
| err = sysfs_create_group(&dev->kobj, &it87_group_fan[i]); |
| if (err) |
| goto error; |
| |
| if (i < 3 && !has_16bit_fans(data)) { |
| err = sysfs_create_file(&dev->kobj, |
| it87_attributes_fan_div[i]); |
| if (err) |
| goto error; |
| } |
| |
| if (sio_data->beep_pin) { |
| err = sysfs_create_file(&dev->kobj, |
| it87_attributes_fan_beep[i]); |
| if (err) |
| goto error; |
| if (!fan_beep_need_rw) |
| continue; |
| |
| /* |
| * As we have a single beep enable bit for all fans, |
| * only the first enabled fan has a writable attribute |
| * for it. |
| */ |
| if (sysfs_chmod_file(&dev->kobj, |
| it87_attributes_fan_beep[i], |
| S_IRUGO | S_IWUSR)) |
| dev_dbg(dev, "chmod +w fan%d_beep failed\n", |
| i + 1); |
| fan_beep_need_rw = 0; |
| } |
| } |
| |
| if (enable_pwm_interface) { |
| for (i = 0; i < 3; i++) { |
| if (sio_data->skip_pwm & (1 << i)) |
| continue; |
| err = sysfs_create_group(&dev->kobj, |
| &it87_group_pwm[i]); |
| if (err) |
| goto error; |
| |
| if (!has_old_autopwm(data)) |
| continue; |
| err = sysfs_create_group(&dev->kobj, |
| &it87_group_autopwm[i]); |
| if (err) |
| goto error; |
| } |
| } |
| |
| if (!sio_data->skip_vid) { |
| data->vrm = vid_which_vrm(); |
| /* VID reading from Super-I/O config space if available */ |
| data->vid = sio_data->vid_value; |
| err = sysfs_create_group(&dev->kobj, &it87_group_vid); |
| if (err) |
| goto error; |
| } |
| |
| /* Export labels for internal sensors */ |
| for (i = 0; i < 4; i++) { |
| if (!(sio_data->internal & (1 << i))) |
| continue; |
| err = sysfs_create_file(&dev->kobj, |
| it87_attributes_label[i]); |
| if (err) |
| goto error; |
| } |
| |
| data->hwmon_dev = hwmon_device_register(dev); |
| if (IS_ERR(data->hwmon_dev)) { |
| err = PTR_ERR(data->hwmon_dev); |
| goto error; |
| } |
| |
| return 0; |
| |
| error: |
| it87_remove_files(dev); |
| return err; |
| } |
| |
| static int it87_remove(struct platform_device *pdev) |
| { |
| struct it87_data *data = platform_get_drvdata(pdev); |
| |
| hwmon_device_unregister(data->hwmon_dev); |
| it87_remove_files(&pdev->dev); |
| |
| return 0; |
| } |
| |
| /* |
| * Must be called with data->update_lock held, except during initialization. |
| * We ignore the IT87 BUSY flag at this moment - it could lead to deadlocks, |
| * would slow down the IT87 access and should not be necessary. |
| */ |
| static int it87_read_value(struct it87_data *data, u8 reg) |
| { |
| outb_p(reg, data->addr + IT87_ADDR_REG_OFFSET); |
| return inb_p(data->addr + IT87_DATA_REG_OFFSET); |
| } |
| |
| /* |
| * Must be called with data->update_lock held, except during initialization. |
| * We ignore the IT87 BUSY flag at this moment - it could lead to deadlocks, |
| * would slow down the IT87 access and should not be necessary. |
| */ |
| static void it87_write_value(struct it87_data *data, u8 reg, u8 value) |
| { |
| outb_p(reg, data->addr + IT87_ADDR_REG_OFFSET); |
| outb_p(value, data->addr + IT87_DATA_REG_OFFSET); |
| } |
| |
| /* Return 1 if and only if the PWM interface is safe to use */ |
| static int it87_check_pwm(struct device *dev) |
| { |
| struct it87_data *data = dev_get_drvdata(dev); |
| /* |
| * Some BIOSes fail to correctly configure the IT87 fans. All fans off |
| * and polarity set to active low is sign that this is the case so we |
| * disable pwm control to protect the user. |
| */ |
| int tmp = it87_read_value(data, IT87_REG_FAN_CTL); |
| if ((tmp & 0x87) == 0) { |
| if (fix_pwm_polarity) { |
| /* |
| * The user asks us to attempt a chip reconfiguration. |
| * This means switching to active high polarity and |
| * inverting all fan speed values. |
| */ |
| int i; |
| u8 pwm[3]; |
| |
| for (i = 0; i < 3; i++) |
| pwm[i] = it87_read_value(data, |
| IT87_REG_PWM(i)); |
| |
| /* |
| * If any fan is in automatic pwm mode, the polarity |
| * might be correct, as suspicious as it seems, so we |
| * better don't change anything (but still disable the |
| * PWM interface). |
| */ |
| if (!((pwm[0] | pwm[1] | pwm[2]) & 0x80)) { |
| dev_info(dev, |
| "Reconfiguring PWM to active high polarity\n"); |
| it87_write_value(data, IT87_REG_FAN_CTL, |
| tmp | 0x87); |
| for (i = 0; i < 3; i++) |
| it87_write_value(data, |
| IT87_REG_PWM(i), |
| 0x7f & ~pwm[i]); |
| return 1; |
| } |
| |
| dev_info(dev, |
| "PWM configuration is too broken to be fixed\n"); |
| } |
| |
| dev_info(dev, |
| "Detected broken BIOS defaults, disabling PWM interface\n"); |
| return 0; |
| } else if (fix_pwm_polarity) { |
| dev_info(dev, |
| "PWM configuration looks sane, won't touch\n"); |
| } |
| |
| return 1; |
| } |
| |
| /* Called when we have found a new IT87. */ |
| static void it87_init_device(struct platform_device *pdev) |
| { |
| struct it87_sio_data *sio_data = dev_get_platdata(&pdev->dev); |
| struct it87_data *data = platform_get_drvdata(pdev); |
| int tmp, i; |
| u8 mask; |
| |
| /* |
| * For each PWM channel: |
| * - If it is in automatic mode, setting to manual mode should set |
| * the fan to full speed by default. |
| * - If it is in manual mode, we need a mapping to temperature |
| * channels to use when later setting to automatic mode later. |
| * Use a 1:1 mapping by default (we are clueless.) |
| * In both cases, the value can (and should) be changed by the user |
| * prior to switching to a different mode. |
| * Note that this is no longer needed for the IT8721F and later, as |
| * these have separate registers for the temperature mapping and the |
| * manual duty cycle. |
| */ |
| for (i = 0; i < 3; i++) { |
| data->pwm_temp_map[i] = i; |
| data->pwm_duty[i] = 0x7f; /* Full speed */ |
| data->auto_pwm[i][3] = 0x7f; /* Full speed, hard-coded */ |
| } |
| |
| /* |
| * Some chips seem to have default value 0xff for all limit |
| * registers. For low voltage limits it makes no sense and triggers |
| * alarms, so change to 0 instead. For high temperature limits, it |
| * means -1 degree C, which surprisingly doesn't trigger an alarm, |
| * but is still confusing, so change to 127 degrees C. |
| */ |
| for (i = 0; i < 8; i++) { |
| tmp = it87_read_value(data, IT87_REG_VIN_MIN(i)); |
| if (tmp == 0xff) |
| it87_write_value(data, IT87_REG_VIN_MIN(i), 0); |
| } |
| for (i = 0; i < 3; i++) { |
| tmp = it87_read_value(data, IT87_REG_TEMP_HIGH(i)); |
| if (tmp == 0xff) |
| it87_write_value(data, IT87_REG_TEMP_HIGH(i), 127); |
| } |
| |
| /* |
| * Temperature channels are not forcibly enabled, as they can be |
| * set to two different sensor types and we can't guess which one |
| * is correct for a given system. These channels can be enabled at |
| * run-time through the temp{1-3}_type sysfs accessors if needed. |
| */ |
| |
| /* Check if voltage monitors are reset manually or by some reason */ |
| tmp = it87_read_value(data, IT87_REG_VIN_ENABLE); |
| if ((tmp & 0xff) == 0) { |
| /* Enable all voltage monitors */ |
| it87_write_value(data, IT87_REG_VIN_ENABLE, 0xff); |
| } |
| |
| /* Check if tachometers are reset manually or by some reason */ |
| mask = 0x70 & ~(sio_data->skip_fan << 4); |
| data->fan_main_ctrl = it87_read_value(data, IT87_REG_FAN_MAIN_CTRL); |
| if ((data->fan_main_ctrl & mask) == 0) { |
| /* Enable all fan tachometers */ |
| data->fan_main_ctrl |= mask; |
| it87_write_value(data, IT87_REG_FAN_MAIN_CTRL, |
| data->fan_main_ctrl); |
| } |
| data->has_fan = (data->fan_main_ctrl >> 4) & 0x07; |
| |
| tmp = it87_read_value(data, IT87_REG_FAN_16BIT); |
| |
| /* Set tachometers to 16-bit mode if needed */ |
| if (has_fan16_config(data)) { |
| if (~tmp & 0x07 & data->has_fan) { |
| dev_dbg(&pdev->dev, |
| "Setting fan1-3 to 16-bit mode\n"); |
| it87_write_value(data, IT87_REG_FAN_16BIT, |
| tmp | 0x07); |
| } |
| } |
| |
| /* Check for additional fans */ |
| if (has_five_fans(data)) { |
| if (tmp & (1 << 4)) |
| data->has_fan |= (1 << 3); /* fan4 enabled */ |
| if (tmp & (1 << 5)) |
| data->has_fan |= (1 << 4); /* fan5 enabled */ |
| if (has_six_fans(data) && (tmp & (1 << 2))) |
| data->has_fan |= (1 << 5); /* fan6 enabled */ |
| } |
| |
| /* Fan input pins may be used for alternative functions */ |
| data->has_fan &= ~sio_data->skip_fan; |
| |
| /* Start monitoring */ |
| it87_write_value(data, IT87_REG_CONFIG, |
| (it87_read_value(data, IT87_REG_CONFIG) & 0x3e) |
| | (update_vbat ? 0x41 : 0x01)); |
| } |
| |
| static void it87_update_pwm_ctrl(struct it87_data *data, int nr) |
| { |
| data->pwm_ctrl[nr] = it87_read_value(data, IT87_REG_PWM(nr)); |
| if (has_newer_autopwm(data)) { |
| data->pwm_temp_map[nr] = data->pwm_ctrl[nr] & 0x03; |
| data->pwm_duty[nr] = it87_read_value(data, |
| IT87_REG_PWM_DUTY(nr)); |
| } else { |
| if (data->pwm_ctrl[nr] & 0x80) /* Automatic mode */ |
| data->pwm_temp_map[nr] = data->pwm_ctrl[nr] & 0x03; |
| else /* Manual mode */ |
| data->pwm_duty[nr] = data->pwm_ctrl[nr] & 0x7f; |
| } |
| |
| if (has_old_autopwm(data)) { |
| int i; |
| |
| for (i = 0; i < 5 ; i++) |
| data->auto_temp[nr][i] = it87_read_value(data, |
| IT87_REG_AUTO_TEMP(nr, i)); |
| for (i = 0; i < 3 ; i++) |
| data->auto_pwm[nr][i] = it87_read_value(data, |
| IT87_REG_AUTO_PWM(nr, i)); |
| } |
| } |
| |
| static struct it87_data *it87_update_device(struct device *dev) |
| { |
| struct it87_data *data = dev_get_drvdata(dev); |
| int i; |
| |
| mutex_lock(&data->update_lock); |
| |
| if (time_after(jiffies, data->last_updated + HZ + HZ / 2) |
| || !data->valid) { |
| if (update_vbat) { |
| /* |
| * Cleared after each update, so reenable. Value |
| * returned by this read will be previous value |
| */ |
| it87_write_value(data, IT87_REG_CONFIG, |
| it87_read_value(data, IT87_REG_CONFIG) | 0x40); |
| } |
| for (i = 0; i <= 7; i++) { |
| data->in[i][0] = |
| it87_read_value(data, IT87_REG_VIN(i)); |
| data->in[i][1] = |
| it87_read_value(data, IT87_REG_VIN_MIN(i)); |
| data->in[i][2] = |
| it87_read_value(data, IT87_REG_VIN_MAX(i)); |
| } |
| /* in8 (battery) has no limit registers */ |
| data->in[8][0] = it87_read_value(data, IT87_REG_VIN(8)); |
| if (data->type == it8603) |
| data->in[9][0] = it87_read_value(data, 0x2f); |
| |
| for (i = 0; i < 6; i++) { |
| /* Skip disabled fans */ |
| if (!(data->has_fan & (1 << i))) |
| continue; |
| |
| data->fan[i][1] = |
| it87_read_value(data, IT87_REG_FAN_MIN[i]); |
| data->fan[i][0] = it87_read_value(data, |
| IT87_REG_FAN[i]); |
| /* Add high byte if in 16-bit mode */ |
| if (has_16bit_fans(data)) { |
| data->fan[i][0] |= it87_read_value(data, |
| IT87_REG_FANX[i]) << 8; |
| data->fan[i][1] |= it87_read_value(data, |
| IT87_REG_FANX_MIN[i]) << 8; |
| } |
| } |
| for (i = 0; i < 3; i++) { |
| if (!(data->has_temp & (1 << i))) |
| continue; |
| data->temp[i][0] = |
| it87_read_value(data, IT87_REG_TEMP(i)); |
| data->temp[i][1] = |
| it87_read_value(data, IT87_REG_TEMP_LOW(i)); |
| data->temp[i][2] = |
| it87_read_value(data, IT87_REG_TEMP_HIGH(i)); |
| if (has_temp_offset(data)) |
| data->temp[i][3] = |
| it87_read_value(data, |
| IT87_REG_TEMP_OFFSET[i]); |
| } |
| |
| /* Newer chips don't have clock dividers */ |
| if ((data->has_fan & 0x07) && !has_16bit_fans(data)) { |
| i = it87_read_value(data, IT87_REG_FAN_DIV); |
| data->fan_div[0] = i & 0x07; |
| data->fan_div[1] = (i >> 3) & 0x07; |
| data->fan_div[2] = (i & 0x40) ? 3 : 1; |
| } |
| |
| data->alarms = |
| it87_read_value(data, IT87_REG_ALARM1) | |
| (it87_read_value(data, IT87_REG_ALARM2) << 8) | |
| (it87_read_value(data, IT87_REG_ALARM3) << 16); |
| data->beeps = it87_read_value(data, IT87_REG_BEEP_ENABLE); |
| |
| data->fan_main_ctrl = it87_read_value(data, |
| IT87_REG_FAN_MAIN_CTRL); |
| data->fan_ctl = it87_read_value(data, IT87_REG_FAN_CTL); |
| for (i = 0; i < 3; i++) |
| it87_update_pwm_ctrl(data, i); |