X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=drivers%2Fhwmon%2Fit87.c;h=5be09c048c5f35bc8b19914b58a20e3b4c3e32d5;hb=1d3c6ff44ad4b5f113602e153026a338f0f9b3ff;hp=e9ab8a32903b9a8c7f50f0e10c60b7098234e554;hpb=8ab4ec3ef45cc2facbe14c733ef7230e7d94fcf2;p=safe%2Fjmp%2Flinux-2.6 diff --git a/drivers/hwmon/it87.c b/drivers/hwmon/it87.c index e9ab8a3..5be09c0 100644 --- a/drivers/hwmon/it87.c +++ b/drivers/hwmon/it87.c @@ -1,62 +1,75 @@ /* - it87.c - Part of lm_sensors, Linux kernel modules for hardware - monitoring. - - Supports: IT8705F Super I/O chip w/LPC interface - IT8712F Super I/O chip w/LPC interface & SMBus - IT8716F Super I/O chip w/LPC interface - Sis950 A clone of the IT8705F - - Copyright (C) 2001 Chris Gauthron - Largely inspired by lm78.c of the same package - - 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. -*/ - -/* - djg@pdp8.net David Gesswein 7/18/01 - Modified to fix bug with not all alarms enabled. - Added ability to read battery voltage and select temperature sensor - type at module load time. -*/ + * 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: 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 + * IT8726F Super I/O chip w/LPC interface + * Sis950 A clone of the IT8705F + * + * Copyright (C) 2001 Chris Gauthron + * Copyright (C) 2005-2010 Jean Delvare + * + * 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. + */ #include #include #include #include -#include -#include +#include #include #include #include #include #include -#include +#include +#include +#include +#include +#include + +#define DRVNAME "it87" +enum chips { it87, it8712, it8716, it8718, it8720 }; -/* Addresses to scan */ -static unsigned short normal_i2c[] = { 0x2d, I2C_CLIENT_END }; -static unsigned short isa_address; +static unsigned short force_id; +module_param(force_id, ushort, 0); +MODULE_PARM_DESC(force_id, "Override the detected device ID"); -/* Insmod parameters */ -I2C_CLIENT_INSMOD_3(it87, it8712, it8716); +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 */ @@ -78,10 +91,10 @@ static int superio_inw(int reg) } static inline void -superio_select(void) +superio_select(int ldn) { outb(DEV, REG); - outb(PME, VAL); + outb(ldn, VAL); } static inline void @@ -100,30 +113,43 @@ superio_exit(void) outb(0x02, VAL); } +/* 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 IT8726F_DEVID 0x8726 #define IT87_ACT_REG 0x30 #define IT87_BASE_REG 0x60 +/* Logical device 7 registers (IT8712F and later) */ +#define IT87_SIO_GPIO3_REG 0x27 +#define IT87_SIO_GPIO5_REG 0x29 +#define IT87_SIO_PINX2_REG 0x2c /* Pin selection */ +#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 int update_vbat; /* Not all BIOSes properly configure the PWM registers */ static int fix_pwm_polarity; -/* Chip Type */ - -static u16 chip_type; - /* Many IT87 constants specified below */ /* Length of ISA address segment */ #define IT87_EXTENT 8 -/* Where are the ISA address/data registers relative to the base address */ -#define IT87_ADDR_REG_OFFSET 5 -#define IT87_DATA_REG_OFFSET 6 +/* 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 -----*/ @@ -133,19 +159,21 @@ static u16 chip_type; #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 -/* Warning: register 0x0b is used for something completely different in - new chips/revisions. I suspect only 16-bit tachometer mode will work - for these. */ +/* 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) */ -#define IT87_REG_FAN(nr) (0x0d + (nr)) -#define IT87_REG_FAN_MIN(nr) (0x10 + (nr)) -#define IT87_REG_FANX(nr) (0x18 + (nr)) -#define IT87_REG_FANX_MIN(nr) (0x1b + (nr)) +static const u8 IT87_REG_FAN[] = { 0x0d, 0x0e, 0x0f, 0x80, 0x82 }; +static const u8 IT87_REG_FAN_MIN[] = { 0x10, 0x11, 0x12, 0x84, 0x86 }; +static const u8 IT87_REG_FANX[] = { 0x18, 0x19, 0x1a, 0x81, 0x83 }; +static const u8 IT87_REG_FANX_MIN[] = { 0x1b, 0x1c, 0x1d, 0x85, 0x87 }; #define IT87_REG_FAN_MAIN_CTRL 0x13 #define IT87_REG_FAN_CTL 0x14 #define IT87_REG_PWM(nr) (0x15 + (nr)) @@ -158,13 +186,15 @@ static u16 chip_type; #define IT87_REG_TEMP_HIGH(nr) (0x40 + (nr) * 2) #define IT87_REG_TEMP_LOW(nr) (0x41 + (nr) * 2) -#define IT87_REG_I2C_ADDR 0x48 - #define IT87_REG_VIN_ENABLE 0x50 #define IT87_REG_TEMP_ENABLE 0x51 +#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)) + #define IN_TO_REG(val) (SENSORS_LIMIT((((val) + 8)/16),0,255)) #define IN_FROM_REG(val) ((val) * 16) @@ -190,7 +220,7 @@ static inline u16 FAN16_TO_REG(long rpm) #define TEMP_TO_REG(val) (SENSORS_LIMIT(((val)<0?(((val)-500)/1000):\ ((val)+500)/1000),-128,127)) -#define TEMP_FROM_REG(val) (((val)>0x80?(val)-0x100:(val))*1000) +#define TEMP_FROM_REG(val) ((val) * 1000) #define PWM_TO_REG(val) ((val) >> 1) #define PWM_FROM_REG(val) (((val)&0x7f) << 1) @@ -204,17 +234,39 @@ static int DIV_TO_REG(int val) } #define DIV_FROM_REG(val) (1 << (val)) +static const unsigned int pwm_freq[8] = { + 48000000 / 128, + 24000000 / 128, + 12000000 / 128, + 8000000 / 128, + 6000000 / 128, + 3000000 / 128, + 1500000 / 128, + 750000 / 128, +}; -/* For each registered IT87, we need to keep some data in memory. That - data is pointed to by it87_list[NR]->data. The structure itself is - dynamically allocated, at the same time when a new it87 client is - allocated. */ + +struct it87_sio_data { + enum chips type; + /* Values read from Super-I/O config space */ + u8 revision; + u8 vid_value; + u8 beep_pin; + /* Features skipped based on config or DMI */ + u8 skip_vid; + u8 skip_fan; + u8 skip_pwm; +}; + +/* For each registered chip, we need to keep some data in memory. + The structure is dynamically allocated. */ struct it87_data { - struct i2c_client client; - struct class_device *class_dev; - struct mutex lock; + struct device *hwmon_dev; enum chips type; + u8 revision; + unsigned short addr; + const char *name; struct mutex update_lock; char valid; /* !=0 if following fields are valid */ unsigned long last_updated; /* In jiffies */ @@ -223,52 +275,73 @@ struct it87_data { u8 in_max[8]; /* Register value */ u8 in_min[8]; /* Register value */ u8 has_fan; /* Bitfield, fans enabled */ - u16 fan[3]; /* Register values, possibly combined */ - u16 fan_min[3]; /* Register values, possibly combined */ - u8 temp[3]; /* Register value */ - u8 temp_high[3]; /* Register value */ - u8 temp_low[3]; /* Register value */ + u16 fan[5]; /* Register values, possibly combined */ + u16 fan_min[5]; /* Register values, possibly combined */ + s8 temp[3]; /* Register value */ + s8 temp_high[3]; /* Register value */ + s8 temp_low[3]; /* Register value */ u8 sensor; /* Register value */ 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 manual_pwm_ctl[3]; /* manual PWM value set by user */ + u8 fan_ctl; /* Register value */ + + /* The following 3 arrays correspond to the same registers. 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. */ + u8 pwm_ctrl[3]; /* Register value */ + u8 pwm_duty[3]; /* Manual PWM value set by user (bit 6-0) */ + 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 inline int has_16bit_fans(const struct it87_data *data) +{ + /* 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 16bit tachometer support. */ + return (data->type == it87 && data->revision >= 0x03) + || (data->type == it8712 && data->revision >= 0x08) + || data->type == it8716 + || data->type == it8718 + || data->type == it8720; +} + +static inline int has_old_autopwm(const struct it87_data *data) +{ + /* The old automatic fan speed control interface is implemented + by IT8705F chips up to revision F and IT8712F chips up to + revision G. */ + return (data->type == it87 && data->revision < 0x03) + || (data->type == it8712 && data->revision < 0x08); +} -static int it87_attach_adapter(struct i2c_adapter *adapter); -static int it87_isa_attach_adapter(struct i2c_adapter *adapter); -static int it87_detect(struct i2c_adapter *adapter, int address, int kind); -static int it87_detach_client(struct i2c_client *client); +static int it87_probe(struct platform_device *pdev); +static int __devexit it87_remove(struct platform_device *pdev); -static int it87_read_value(struct i2c_client *client, u8 reg); -static int it87_write_value(struct i2c_client *client, u8 reg, u8 value); +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 i2c_client *client); -static void it87_init_client(struct i2c_client *client, struct it87_data *data); +static int it87_check_pwm(struct device *dev); +static void it87_init_device(struct platform_device *pdev); -static struct i2c_driver it87_driver = { - .driver = { - .name = "it87", - }, - .id = I2C_DRIVERID_IT87, - .attach_adapter = it87_attach_adapter, - .detach_client = it87_detach_client, -}; - -static struct i2c_driver it87_isa_driver = { +static struct platform_driver it87_driver = { .driver = { .owner = THIS_MODULE, - .name = "it87-isa", + .name = DRVNAME, }, - .attach_adapter = it87_isa_attach_adapter, - .detach_client = it87_detach_client, + .probe = it87_probe, + .remove = __devexit_p(it87_remove), }; - static ssize_t show_in(struct device *dev, struct device_attribute *attr, char *buf) { @@ -305,13 +378,15 @@ static ssize_t set_in_min(struct device *dev, struct device_attribute *attr, struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); int nr = sensor_attr->index; - struct i2c_client *client = to_i2c_client(dev); - struct it87_data *data = i2c_get_clientdata(client); - unsigned long val = simple_strtoul(buf, NULL, 10); + struct it87_data *data = dev_get_drvdata(dev); + unsigned long val; + + if (strict_strtoul(buf, 10, &val) < 0) + return -EINVAL; mutex_lock(&data->update_lock); data->in_min[nr] = IN_TO_REG(val); - it87_write_value(client, IT87_REG_VIN_MIN(nr), + it87_write_value(data, IT87_REG_VIN_MIN(nr), data->in_min[nr]); mutex_unlock(&data->update_lock); return count; @@ -322,13 +397,15 @@ static ssize_t set_in_max(struct device *dev, struct device_attribute *attr, struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); int nr = sensor_attr->index; - struct i2c_client *client = to_i2c_client(dev); - struct it87_data *data = i2c_get_clientdata(client); - unsigned long val = simple_strtoul(buf, NULL, 10); + struct it87_data *data = dev_get_drvdata(dev); + unsigned long val; + + if (strict_strtoul(buf, 10, &val) < 0) + return -EINVAL; mutex_lock(&data->update_lock); data->in_max[nr] = IN_TO_REG(val); - it87_write_value(client, IT87_REG_VIN_MAX(nr), + it87_write_value(data, IT87_REG_VIN_MAX(nr), data->in_max[nr]); mutex_unlock(&data->update_lock); return count; @@ -396,13 +473,15 @@ static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr, struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); int nr = sensor_attr->index; - struct i2c_client *client = to_i2c_client(dev); - struct it87_data *data = i2c_get_clientdata(client); - int val = simple_strtol(buf, NULL, 10); + struct it87_data *data = dev_get_drvdata(dev); + long val; + + if (strict_strtol(buf, 10, &val) < 0) + return -EINVAL; mutex_lock(&data->update_lock); data->temp_high[nr] = TEMP_TO_REG(val); - it87_write_value(client, IT87_REG_TEMP_HIGH(nr), data->temp_high[nr]); + it87_write_value(data, IT87_REG_TEMP_HIGH(nr), data->temp_high[nr]); mutex_unlock(&data->update_lock); return count; } @@ -412,13 +491,15 @@ static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr, struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); int nr = sensor_attr->index; - struct i2c_client *client = to_i2c_client(dev); - struct it87_data *data = i2c_get_clientdata(client); - int val = simple_strtol(buf, NULL, 10); + struct it87_data *data = dev_get_drvdata(dev); + long val; + + if (strict_strtol(buf, 10, &val) < 0) + return -EINVAL; mutex_lock(&data->update_lock); data->temp_low[nr] = TEMP_TO_REG(val); - it87_write_value(client, IT87_REG_TEMP_LOW(nr), data->temp_low[nr]); + it87_write_value(data, IT87_REG_TEMP_LOW(nr), data->temp_low[nr]); mutex_unlock(&data->update_lock); return count; } @@ -441,12 +522,13 @@ static ssize_t show_sensor(struct device *dev, struct device_attribute *attr, int nr = sensor_attr->index; struct it87_data *data = it87_update_device(dev); - u8 reg = data->sensor; /* In case the value is updated while we use it */ - + u8 reg = data->sensor; /* In case the value is updated while + we use it */ + if (reg & (1 << nr)) return sprintf(buf, "3\n"); /* thermal diode */ if (reg & (8 << nr)) - return sprintf(buf, "2\n"); /* thermistor */ + return sprintf(buf, "4\n"); /* thermistor */ return sprintf(buf, "0\n"); /* disabled */ } static ssize_t set_sensor(struct device *dev, struct device_attribute *attr, @@ -455,24 +537,33 @@ static ssize_t set_sensor(struct device *dev, struct device_attribute *attr, struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); int nr = sensor_attr->index; - struct i2c_client *client = to_i2c_client(dev); - struct it87_data *data = i2c_get_clientdata(client); - int val = simple_strtol(buf, NULL, 10); + struct it87_data *data = dev_get_drvdata(dev); + long val; + u8 reg; - mutex_lock(&data->update_lock); + if (strict_strtol(buf, 10, &val) < 0) + return -EINVAL; - data->sensor &= ~(1 << nr); - data->sensor &= ~(8 << nr); - /* 3 = thermal diode; 2 = thermistor; 0 = disabled */ + reg = it87_read_value(data, IT87_REG_TEMP_ENABLE); + reg &= ~(1 << nr); + reg &= ~(8 << nr); + 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; 0 = disabled */ if (val == 3) - data->sensor |= 1 << nr; - else if (val == 2) - data->sensor |= 8 << nr; - else if (val != 0) { - mutex_unlock(&data->update_lock); + reg |= 1 << nr; + else if (val == 4) + reg |= 8 << nr; + else if (val != 0) return -EINVAL; - } - it87_write_value(client, IT87_REG_TEMP_ENABLE, data->sensor); + + mutex_lock(&data->update_lock); + data->sensor = reg; + it87_write_value(data, IT87_REG_TEMP_ENABLE, data->sensor); + data->valid = 0; /* Force cache refresh */ mutex_unlock(&data->update_lock); return count; } @@ -485,6 +576,19 @@ show_sensor_offset(2); show_sensor_offset(3); /* 3 Fans */ + +static int pwm_mode(const struct it87_data *data, int nr) +{ + int ctrl = data->fan_main_ctrl & (1 << nr); + + if (ctrl == 0) /* Full speed */ + return 0; + if (data->pwm_ctrl[nr] & 0x80) /* Automatic mode */ + return 2; + else /* Manual mode */ + return 1; +} + static ssize_t show_fan(struct device *dev, struct device_attribute *attr, char *buf) { @@ -492,7 +596,7 @@ static ssize_t show_fan(struct device *dev, struct device_attribute *attr, int nr = sensor_attr->index; struct it87_data *data = it87_update_device(dev); - return sprintf(buf,"%d\n", FAN_FROM_REG(data->fan[nr], + return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[nr], DIV_FROM_REG(data->fan_div[nr]))); } static ssize_t show_fan_min(struct device *dev, struct device_attribute *attr, @@ -502,8 +606,8 @@ static ssize_t show_fan_min(struct device *dev, struct device_attribute *attr, int nr = sensor_attr->index; struct it87_data *data = it87_update_device(dev); - return sprintf(buf,"%d\n", - FAN_FROM_REG(data->fan_min[nr], DIV_FROM_REG(data->fan_div[nr]))); + return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[nr], + DIV_FROM_REG(data->fan_div[nr]))); } static ssize_t show_fan_div(struct device *dev, struct device_attribute *attr, char *buf) @@ -514,14 +618,14 @@ static ssize_t show_fan_div(struct device *dev, struct device_attribute *attr, 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) +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", (data->fan_main_ctrl & (1 << nr)) ? 1 : 0); + return sprintf(buf, "%d\n", pwm_mode(data, nr)); } static ssize_t show_pwm(struct device *dev, struct device_attribute *attr, char *buf) @@ -530,7 +634,15 @@ static ssize_t show_pwm(struct device *dev, struct device_attribute *attr, int nr = sensor_attr->index; struct it87_data *data = it87_update_device(dev); - return sprintf(buf,"%d\n", data->manual_pwm_ctl[nr]); + return sprintf(buf, "%d\n", PWM_FROM_REG(data->pwm_duty[nr])); +} +static ssize_t show_pwm_freq(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct it87_data *data = it87_update_device(dev); + int index = (data->fan_ctl >> 4) & 0x07; + + return sprintf(buf, "%u\n", pwm_freq[index]); } static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) @@ -538,20 +650,29 @@ static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr, struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); int nr = sensor_attr->index; - struct i2c_client *client = to_i2c_client(dev); - struct it87_data *data = i2c_get_clientdata(client); - int val = simple_strtol(buf, NULL, 10); - u8 reg = it87_read_value(client, IT87_REG_FAN_DIV); + struct it87_data *data = dev_get_drvdata(dev); + long val; + u8 reg; + + if (strict_strtol(buf, 10, &val) < 0) + return -EINVAL; mutex_lock(&data->update_lock); + 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; + 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_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr])); - it87_write_value(client, IT87_REG_FAN_MIN(nr), data->fan_min[nr]); + it87_write_value(data, IT87_REG_FAN_MIN[nr], data->fan_min[nr]); mutex_unlock(&data->update_lock); return count; } @@ -561,14 +682,16 @@ static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr, struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); int nr = sensor_attr->index; - struct i2c_client *client = to_i2c_client(dev); - struct it87_data *data = i2c_get_clientdata(client); - unsigned long val = simple_strtoul(buf, NULL, 10); + struct it87_data *data = dev_get_drvdata(dev); + unsigned long val; int min; u8 old; + if (strict_strtoul(buf, 10, &val) < 0) + return -EINVAL; + mutex_lock(&data->update_lock); - old = it87_read_value(client, IT87_REG_FAN_DIV); + old = it87_read_value(data, IT87_REG_FAN_DIV); /* Save fan min limit */ min = FAN_FROM_REG(data->fan_min[nr], DIV_FROM_REG(data->fan_div[nr])); @@ -589,44 +712,80 @@ static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr, val |= (data->fan_div[1] & 0x07) << 3; if (data->fan_div[2] == 3) val |= 0x1 << 6; - it87_write_value(client, IT87_REG_FAN_DIV, val); + it87_write_value(data, IT87_REG_FAN_DIV, val); /* Restore fan min limit */ data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr])); - it87_write_value(client, IT87_REG_FAN_MIN(nr), data->fan_min[nr]); + it87_write_value(data, IT87_REG_FAN_MIN[nr], data->fan_min[nr]); 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 i2c_client *client = to_i2c_client(dev); - struct it87_data *data = i2c_get_clientdata(client); - int val = simple_strtol(buf, NULL, 10); + struct it87_data *data = dev_get_drvdata(dev); + long val; + + if (strict_strtol(buf, 10, &val) < 0 || val < 0 || val > 2) + return -EINVAL; + + /* Check trip points before switching to automatic mode */ + if (val == 2) { + if (check_trip_points(dev, nr) < 0) + return -EINVAL; + } mutex_lock(&data->update_lock); if (val == 0) { int tmp; /* make sure the fan is on when in on/off mode */ - tmp = it87_read_value(client, IT87_REG_FAN_CTL); - it87_write_value(client, IT87_REG_FAN_CTL, tmp | (1 << nr)); + 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(client, IT87_REG_FAN_MAIN_CTRL, data->fan_main_ctrl); - } else if (val == 1) { + it87_write_value(data, IT87_REG_FAN_MAIN_CTRL, + data->fan_main_ctrl); + } else { + if (val == 1) /* Manual mode */ + data->pwm_ctrl[nr] = data->pwm_duty[nr]; + else /* Automatic mode */ + data->pwm_ctrl[nr] = 0x80 | data->pwm_temp_map[nr]; + it87_write_value(data, IT87_REG_PWM(nr), data->pwm_ctrl[nr]); /* set SmartGuardian mode */ data->fan_main_ctrl |= (1 << nr); - it87_write_value(client, IT87_REG_FAN_MAIN_CTRL, data->fan_main_ctrl); - /* set saved pwm value, clear FAN_CTLX PWM mode bit */ - it87_write_value(client, IT87_REG_PWM(nr), PWM_TO_REG(data->manual_pwm_ctl[nr])); - } else { - mutex_unlock(&data->update_lock); - return -EINVAL; + it87_write_value(data, IT87_REG_FAN_MAIN_CTRL, + data->fan_main_ctrl); } mutex_unlock(&data->update_lock); @@ -638,17 +797,170 @@ static ssize_t set_pwm(struct device *dev, struct device_attribute *attr, struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); int nr = sensor_attr->index; - struct i2c_client *client = to_i2c_client(dev); - struct it87_data *data = i2c_get_clientdata(client); - int val = simple_strtol(buf, NULL, 10); + struct it87_data *data = dev_get_drvdata(dev); + long val; + + if (strict_strtol(buf, 10, &val) < 0 || val < 0 || val > 255) + return -EINVAL; + + mutex_lock(&data->update_lock); + data->pwm_duty[nr] = PWM_TO_REG(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 (strict_strtoul(buf, 10, &val) < 0) + return -EINVAL; + + /* Search for the nearest available frequency */ + for (i = 0; i < 7; i++) { + if (val > (pwm_freq[i] + pwm_freq[i+1]) / 2) + break; + } + + mutex_lock(&data->update_lock); + data->fan_ctl = it87_read_value(data, IT87_REG_FAN_CTL) & 0x8f; + data->fan_ctl |= i << 4; + it87_write_value(data, IT87_REG_FAN_CTL, data->fan_ctl); + mutex_unlock(&data->update_lock); + + return count; +} +static ssize_t show_pwm_temp_map(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); + int nr = sensor_attr->index; + + struct it87_data *data = it87_update_device(dev); + int map; + + if (data->pwm_temp_map[nr] < 3) + map = 1 << data->pwm_temp_map[nr]; + else + map = 0; /* Should never happen */ + return sprintf(buf, "%d\n", map); +} +static ssize_t set_pwm_temp_map(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count) +{ + struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); + int nr = sensor_attr->index; + + struct it87_data *data = dev_get_drvdata(dev); + long val; + u8 reg; + + /* This check can go away if we ever support automatic fan speed + control on newer chips. */ + if (!has_old_autopwm(data)) { + dev_notice(dev, "Mapping change disabled for safety reasons\n"); + return -EINVAL; + } + + if (strict_strtol(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->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 (strict_strtol(buf, 10, &val) < 0 || val < 0 || val > 255) + return -EINVAL; + + mutex_lock(&data->update_lock); + data->auto_pwm[nr][point] = PWM_TO_REG(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])); +} - if (val < 0 || val > 255) +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 (strict_strtol(buf, 10, &val) < 0 || val < -128000 || val > 127000) return -EINVAL; mutex_lock(&data->update_lock); - data->manual_pwm_ctl[nr] = val; - if (data->fan_main_ctrl & (1 << nr)) - it87_write_value(client, IT87_REG_PWM(nr), PWM_TO_REG(data->manual_pwm_ctl[nr])); + 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; } @@ -669,7 +981,39 @@ show_fan_offset(3); static SENSOR_DEVICE_ATTR(pwm##offset##_enable, S_IRUGO | S_IWUSR, \ show_pwm_enable, set_pwm_enable, offset - 1); \ static SENSOR_DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR, \ - show_pwm, set_pwm, offset - 1); + show_pwm, set_pwm, offset - 1); \ +static DEVICE_ATTR(pwm##offset##_freq, \ + (offset == 1 ? S_IRUGO | S_IWUSR : S_IRUGO), \ + show_pwm_freq, (offset == 1 ? set_pwm_freq : NULL)); \ +static SENSOR_DEVICE_ATTR(pwm##offset##_auto_channels_temp, \ + S_IRUGO | S_IWUSR, show_pwm_temp_map, set_pwm_temp_map, \ + offset - 1); \ +static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point1_pwm, \ + S_IRUGO | S_IWUSR, show_auto_pwm, set_auto_pwm, \ + offset - 1, 0); \ +static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point2_pwm, \ + S_IRUGO | S_IWUSR, show_auto_pwm, set_auto_pwm, \ + offset - 1, 1); \ +static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point3_pwm, \ + S_IRUGO | S_IWUSR, show_auto_pwm, set_auto_pwm, \ + offset - 1, 2); \ +static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point4_pwm, \ + S_IRUGO, show_auto_pwm, NULL, offset - 1, 3); \ +static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point1_temp, \ + S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, \ + offset - 1, 1); \ +static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point1_temp_hyst, \ + S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, \ + offset - 1, 0); \ +static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point2_temp, \ + S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, \ + offset - 1, 2); \ +static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point3_temp, \ + S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, \ + offset - 1, 3); \ +static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point4_temp, \ + S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, \ + offset - 1, 4); show_pwm_offset(1); show_pwm_offset(2); @@ -699,15 +1043,17 @@ static ssize_t set_fan16_min(struct device *dev, struct device_attribute *attr, { struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); int nr = sensor_attr->index; - struct i2c_client *client = to_i2c_client(dev); - struct it87_data *data = i2c_get_clientdata(client); - int val = simple_strtol(buf, NULL, 10); + struct it87_data *data = dev_get_drvdata(dev); + long val; + + if (strict_strtol(buf, 10, &val) < 0) + return -EINVAL; mutex_lock(&data->update_lock); data->fan_min[nr] = FAN16_TO_REG(val); - it87_write_value(client, IT87_REG_FAN_MIN(nr), + it87_write_value(data, IT87_REG_FAN_MIN[nr], data->fan_min[nr] & 0xff); - it87_write_value(client, IT87_REG_FANX_MIN(nr), + it87_write_value(data, IT87_REG_FANX_MIN[nr], data->fan_min[nr] >> 8); mutex_unlock(&data->update_lock); return count; @@ -727,76 +1073,397 @@ static struct sensor_device_attribute sensor_dev_attr_fan##offset##_min16 \ show_fan16_offset(1); show_fan16_offset(2); show_fan16_offset(3); +show_fan16_offset(4); +show_fan16_offset(5); /* Alarms */ -static ssize_t show_alarms(struct device *dev, struct device_attribute *attr, char *buf) +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_vrm_reg(struct device *dev, struct device_attribute *attr, char *buf) +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 SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 8); +static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 9); +static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 10); +static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 11); +static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 12); +static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 13); +static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 14); +static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 15); +static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 0); +static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 1); +static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 2); +static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 3); +static SENSOR_DEVICE_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 6); +static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 16); +static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 17); +static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 18); + +static 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 (strict_strtol(buf, 10, &val) < 0 + || (val != 0 && val != 1)) + return -EINVAL; + + mutex_lock(&data->update_lock); + data->beeps = it87_read_value(data, IT87_REG_BEEP_ENABLE); + if (val) + data->beeps |= (1 << bitnr); + else + data->beeps &= ~(1 << bitnr); + it87_write_value(data, IT87_REG_BEEP_ENABLE, data->beeps); + mutex_unlock(&data->update_lock); + return count; +} + +static SENSOR_DEVICE_ATTR(in0_beep, S_IRUGO | S_IWUSR, + show_beep, set_beep, 1); +static SENSOR_DEVICE_ATTR(in1_beep, S_IRUGO, show_beep, NULL, 1); +static SENSOR_DEVICE_ATTR(in2_beep, S_IRUGO, show_beep, NULL, 1); +static SENSOR_DEVICE_ATTR(in3_beep, S_IRUGO, show_beep, NULL, 1); +static SENSOR_DEVICE_ATTR(in4_beep, S_IRUGO, show_beep, NULL, 1); +static SENSOR_DEVICE_ATTR(in5_beep, S_IRUGO, show_beep, NULL, 1); +static SENSOR_DEVICE_ATTR(in6_beep, S_IRUGO, show_beep, NULL, 1); +static SENSOR_DEVICE_ATTR(in7_beep, S_IRUGO, show_beep, NULL, 1); +/* fanX_beep writability is set later */ +static SENSOR_DEVICE_ATTR(fan1_beep, S_IRUGO, show_beep, set_beep, 0); +static SENSOR_DEVICE_ATTR(fan2_beep, S_IRUGO, show_beep, set_beep, 0); +static SENSOR_DEVICE_ATTR(fan3_beep, S_IRUGO, show_beep, set_beep, 0); +static SENSOR_DEVICE_ATTR(fan4_beep, S_IRUGO, show_beep, set_beep, 0); +static SENSOR_DEVICE_ATTR(fan5_beep, S_IRUGO, show_beep, set_beep, 0); +static SENSOR_DEVICE_ATTR(temp1_beep, S_IRUGO | S_IWUSR, + show_beep, set_beep, 2); +static SENSOR_DEVICE_ATTR(temp2_beep, S_IRUGO, show_beep, NULL, 2); +static SENSOR_DEVICE_ATTR(temp3_beep, S_IRUGO, show_beep, NULL, 2); + +static ssize_t show_vrm_reg(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct it87_data *data = dev_get_drvdata(dev); return sprintf(buf, "%u\n", data->vrm); } -static ssize_t -store_vrm_reg(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) +static ssize_t store_vrm_reg(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct it87_data *data = i2c_get_clientdata(client); - u32 val; + struct it87_data *data = dev_get_drvdata(dev); + unsigned long val; + + if (strict_strtoul(buf, 10, &val) < 0) + return -EINVAL; - val = simple_strtoul(buf, NULL, 10); data->vrm = val; return count; } static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg); -#define device_create_file_vrm(client) \ -device_create_file(&client->dev, &dev_attr_vrm) -static ssize_t -show_vid_reg(struct device *dev, struct device_attribute *attr, char *buf) +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); -#define device_create_file_vid(client) \ -device_create_file(&client->dev, &dev_attr_cpu0_vid) -/* This function is called when: - * it87_driver is inserted (when this module is loaded), for each - available adapter - * when a new adapter is inserted (and it87_driver is still present) */ -static int it87_attach_adapter(struct i2c_adapter *adapter) +static ssize_t show_name(struct device *dev, struct device_attribute + *devattr, char *buf) { - if (!(adapter->class & I2C_CLASS_HWMON)) - return 0; - return i2c_probe(adapter, &addr_data, it87_detect); + 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[] = { + &sensor_dev_attr_in0_input.dev_attr.attr, + &sensor_dev_attr_in1_input.dev_attr.attr, + &sensor_dev_attr_in2_input.dev_attr.attr, + &sensor_dev_attr_in3_input.dev_attr.attr, + &sensor_dev_attr_in4_input.dev_attr.attr, + &sensor_dev_attr_in5_input.dev_attr.attr, + &sensor_dev_attr_in6_input.dev_attr.attr, + &sensor_dev_attr_in7_input.dev_attr.attr, + &sensor_dev_attr_in8_input.dev_attr.attr, + &sensor_dev_attr_in0_min.dev_attr.attr, + &sensor_dev_attr_in1_min.dev_attr.attr, + &sensor_dev_attr_in2_min.dev_attr.attr, + &sensor_dev_attr_in3_min.dev_attr.attr, + &sensor_dev_attr_in4_min.dev_attr.attr, + &sensor_dev_attr_in5_min.dev_attr.attr, + &sensor_dev_attr_in6_min.dev_attr.attr, + &sensor_dev_attr_in7_min.dev_attr.attr, + &sensor_dev_attr_in0_max.dev_attr.attr, + &sensor_dev_attr_in1_max.dev_attr.attr, + &sensor_dev_attr_in2_max.dev_attr.attr, + &sensor_dev_attr_in3_max.dev_attr.attr, + &sensor_dev_attr_in4_max.dev_attr.attr, + &sensor_dev_attr_in5_max.dev_attr.attr, + &sensor_dev_attr_in6_max.dev_attr.attr, + &sensor_dev_attr_in7_max.dev_attr.attr, + &sensor_dev_attr_in0_alarm.dev_attr.attr, + &sensor_dev_attr_in1_alarm.dev_attr.attr, + &sensor_dev_attr_in2_alarm.dev_attr.attr, + &sensor_dev_attr_in3_alarm.dev_attr.attr, + &sensor_dev_attr_in4_alarm.dev_attr.attr, + &sensor_dev_attr_in5_alarm.dev_attr.attr, + &sensor_dev_attr_in6_alarm.dev_attr.attr, + &sensor_dev_attr_in7_alarm.dev_attr.attr, + + &sensor_dev_attr_temp1_input.dev_attr.attr, + &sensor_dev_attr_temp2_input.dev_attr.attr, + &sensor_dev_attr_temp3_input.dev_attr.attr, + &sensor_dev_attr_temp1_max.dev_attr.attr, + &sensor_dev_attr_temp2_max.dev_attr.attr, + &sensor_dev_attr_temp3_max.dev_attr.attr, + &sensor_dev_attr_temp1_min.dev_attr.attr, + &sensor_dev_attr_temp2_min.dev_attr.attr, + &sensor_dev_attr_temp3_min.dev_attr.attr, + &sensor_dev_attr_temp1_type.dev_attr.attr, + &sensor_dev_attr_temp2_type.dev_attr.attr, + &sensor_dev_attr_temp3_type.dev_attr.attr, + &sensor_dev_attr_temp1_alarm.dev_attr.attr, + &sensor_dev_attr_temp2_alarm.dev_attr.attr, + &sensor_dev_attr_temp3_alarm.dev_attr.attr, + + &dev_attr_alarms.attr, + &dev_attr_name.attr, + NULL +}; + +static const struct attribute_group it87_group = { + .attrs = it87_attributes, +}; + +static struct attribute *it87_attributes_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, + + &sensor_dev_attr_temp1_beep.dev_attr.attr, + &sensor_dev_attr_temp2_beep.dev_attr.attr, + &sensor_dev_attr_temp3_beep.dev_attr.attr, + NULL +}; + +static const struct attribute_group it87_group_beep = { + .attrs = it87_attributes_beep, +}; + +static struct attribute *it87_attributes_fan16[5][3+1] = { { + &sensor_dev_attr_fan1_input16.dev_attr.attr, + &sensor_dev_attr_fan1_min16.dev_attr.attr, + &sensor_dev_attr_fan1_alarm.dev_attr.attr, + NULL +}, { + &sensor_dev_attr_fan2_input16.dev_attr.attr, + &sensor_dev_attr_fan2_min16.dev_attr.attr, + &sensor_dev_attr_fan2_alarm.dev_attr.attr, + NULL +}, { + &sensor_dev_attr_fan3_input16.dev_attr.attr, + &sensor_dev_attr_fan3_min16.dev_attr.attr, + &sensor_dev_attr_fan3_alarm.dev_attr.attr, + NULL +}, { + &sensor_dev_attr_fan4_input16.dev_attr.attr, + &sensor_dev_attr_fan4_min16.dev_attr.attr, + &sensor_dev_attr_fan4_alarm.dev_attr.attr, + NULL +}, { + &sensor_dev_attr_fan5_input16.dev_attr.attr, + &sensor_dev_attr_fan5_min16.dev_attr.attr, + &sensor_dev_attr_fan5_alarm.dev_attr.attr, + NULL +} }; + +static const struct attribute_group it87_group_fan16[5] = { + { .attrs = it87_attributes_fan16[0] }, + { .attrs = it87_attributes_fan16[1] }, + { .attrs = it87_attributes_fan16[2] }, + { .attrs = it87_attributes_fan16[3] }, + { .attrs = it87_attributes_fan16[4] }, +}; -static int it87_isa_attach_adapter(struct i2c_adapter *adapter) +static struct attribute *it87_attributes_fan[3][4+1] = { { + &sensor_dev_attr_fan1_input.dev_attr.attr, + &sensor_dev_attr_fan1_min.dev_attr.attr, + &sensor_dev_attr_fan1_div.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_div.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_div.dev_attr.attr, + &sensor_dev_attr_fan3_alarm.dev_attr.attr, + NULL +} }; + +static const struct attribute_group it87_group_fan[3] = { + { .attrs = it87_attributes_fan[0] }, + { .attrs = it87_attributes_fan[1] }, + { .attrs = it87_attributes_fan[2] }, +}; + +static const struct attribute_group * +it87_get_fan_group(const struct it87_data *data) { - return it87_detect(adapter, isa_address, -1); + return has_16bit_fans(data) ? it87_group_fan16 : it87_group_fan; } +static struct attribute *it87_attributes_pwm[3][4+1] = { { + &sensor_dev_attr_pwm1_enable.dev_attr.attr, + &sensor_dev_attr_pwm1.dev_attr.attr, + &dev_attr_pwm1_freq.attr, + &sensor_dev_attr_pwm1_auto_channels_temp.dev_attr.attr, + NULL +}, { + &sensor_dev_attr_pwm2_enable.dev_attr.attr, + &sensor_dev_attr_pwm2.dev_attr.attr, + &dev_attr_pwm2_freq.attr, + &sensor_dev_attr_pwm2_auto_channels_temp.dev_attr.attr, + NULL +}, { + &sensor_dev_attr_pwm3_enable.dev_attr.attr, + &sensor_dev_attr_pwm3.dev_attr.attr, + &dev_attr_pwm3_freq.attr, + &sensor_dev_attr_pwm3_auto_channels_temp.dev_attr.attr, + NULL +} }; + +static const struct attribute_group it87_group_pwm[3] = { + { .attrs = it87_attributes_pwm[0] }, + { .attrs = it87_attributes_pwm[1] }, + { .attrs = it87_attributes_pwm[2] }, +}; + +static struct attribute *it87_attributes_autopwm[3][9+1] = { { + &sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point2_pwm.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point3_pwm.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point4_pwm.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point1_temp.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point1_temp_hyst.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point2_temp.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point3_temp.dev_attr.attr, + &sensor_dev_attr_pwm1_auto_point4_temp.dev_attr.attr, + NULL +}, { + &sensor_dev_attr_pwm2_auto_point1_pwm.dev_attr.attr, + &sensor_dev_attr_pwm2_auto_point2_pwm.dev_attr.attr, + &sensor_dev_attr_pwm2_auto_point3_pwm.dev_attr.attr, + &sensor_dev_attr_pwm2_auto_point4_pwm.dev_attr.attr, + &sensor_dev_attr_pwm2_auto_point1_temp.dev_attr.attr, + &sensor_dev_attr_pwm2_auto_point1_temp_hyst.dev_attr.attr, + &sensor_dev_attr_pwm2_auto_point2_temp.dev_attr.attr, + &sensor_dev_attr_pwm2_auto_point3_temp.dev_attr.attr, + &sensor_dev_attr_pwm2_auto_point4_temp.dev_attr.attr, + NULL +}, { + &sensor_dev_attr_pwm3_auto_point1_pwm.dev_attr.attr, + &sensor_dev_attr_pwm3_auto_point2_pwm.dev_attr.attr, + &sensor_dev_attr_pwm3_auto_point3_pwm.dev_attr.attr, + &sensor_dev_attr_pwm3_auto_point4_pwm.dev_attr.attr, + &sensor_dev_attr_pwm3_auto_point1_temp.dev_attr.attr, + &sensor_dev_attr_pwm3_auto_point1_temp_hyst.dev_attr.attr, + &sensor_dev_attr_pwm3_auto_point2_temp.dev_attr.attr, + &sensor_dev_attr_pwm3_auto_point3_temp.dev_attr.attr, + &sensor_dev_attr_pwm3_auto_point4_temp.dev_attr.attr, + NULL +} }; + +static const struct attribute_group it87_group_autopwm[3] = { + { .attrs = it87_attributes_autopwm[0] }, + { .attrs = it87_attributes_autopwm[1] }, + { .attrs = it87_attributes_autopwm[2] }, +}; + +static struct attribute *it87_attributes_fan_beep[] = { + &sensor_dev_attr_fan1_beep.dev_attr.attr, + &sensor_dev_attr_fan2_beep.dev_attr.attr, + &sensor_dev_attr_fan3_beep.dev_attr.attr, + &sensor_dev_attr_fan4_beep.dev_attr.attr, + &sensor_dev_attr_fan5_beep.dev_attr.attr, +}; + +static struct attribute *it87_attributes_vid[] = { + &dev_attr_vrm.attr, + &dev_attr_cpu0_vid.attr, + NULL +}; + +static const struct attribute_group it87_group_vid = { + .attrs = it87_attributes_vid, +}; + /* SuperIO detection - will change isa_address if a chip is found */ -static int __init it87_find(unsigned short *address) +static int __init it87_find(unsigned short *address, + struct it87_sio_data *sio_data) { int err = -ENODEV; + u16 chip_type; + const char *board_vendor, *board_name; superio_enter(); - chip_type = superio_inw(DEVID); - if (chip_type != IT8712F_DEVID - && chip_type != IT8716F_DEVID - && chip_type != IT8705F_DEVID) - goto exit; + chip_type = force_id ? force_id : superio_inw(DEVID); - superio_select(); + 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 0xffff: /* No device at all */ + goto exit; + default: + pr_debug(DRVNAME ": Unsupported chip (DEVID=0x%x)\n", + chip_type); + goto exit; + } + + superio_select(PME); if (!(superio_inb(IT87_ACT_REG) & 0x01)) { pr_info("it87: Device not activated, skipping\n"); goto exit; @@ -809,304 +1476,292 @@ static int __init it87_find(unsigned short *address) } err = 0; + sio_data->revision = superio_inb(DEVREV) & 0x0f; pr_info("it87: Found IT%04xF chip at 0x%x, revision %d\n", - chip_type, *address, superio_inb(DEVREV) & 0x0f); + chip_type, *address, sio_data->revision); + + /* Read GPIO config and VID value from LDN 7 (GPIO) */ + if (sio_data->type == it87) { + /* The IT8705F doesn't have VID pins at all */ + sio_data->skip_vid = 1; + + /* The IT8705F has a different LD number for GPIO */ + superio_select(5); + sio_data->beep_pin = superio_inb(IT87_SIO_BEEP_PIN_REG) & 0x3f; + } else { + int reg; + + superio_select(GPIO); + /* We need at least 4 VID pins */ + reg = superio_inb(IT87_SIO_GPIO3_REG); + if (reg & 0x0f) { + pr_info("it87: 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); + if (reg & (1 << 0)) + pr_info("it87: in3 is VCC (+5V)\n"); + if (reg & (1 << 1)) + pr_info("it87: in7 is VCCH (+5V Stand-By)\n"); + + sio_data->beep_pin = superio_inb(IT87_SIO_BEEP_PIN_REG) & 0x3f; + } + if (sio_data->beep_pin) + pr_info("it87: 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("it87: Disabling pwm2 due to " + "hardware constraints\n"); + sio_data->skip_pwm = (1 << 1); + } + } exit: superio_exit(); return err; } -/* This function is called by i2c_probe */ -static int it87_detect(struct i2c_adapter *adapter, int address, int kind) +static void it87_remove_files(struct device *dev) { + struct it87_data *data = platform_get_drvdata(pdev); + struct it87_sio_data *sio_data = dev->platform_data; + const struct attribute_group *fan_group = it87_get_fan_group(data); int i; - struct i2c_client *new_client; + + sysfs_remove_group(&dev->kobj, &it87_group); + if (sio_data->beep_pin) + sysfs_remove_group(&dev->kobj, &it87_group_beep); + for (i = 0; i < 5; i++) { + if (!(data->has_fan & (1 << i))) + continue; + sysfs_remove_group(&dev->kobj, &fan_group[i]); + if (sio_data->beep_pin) + sysfs_remove_file(&dev->kobj, + it87_attributes_fan_beep[i]); + } + for (i = 0; i < 3; i++) { + if (sio_data->skip_pwm & (1 << 0)) + continue; + sysfs_remove_group(&dev->kobj, &it87_group_pwm[i]); + if (has_old_autopwm(data)) + sysfs_remove_group(&dev->kobj, + &it87_group_autopwm[i]); + } + if (!sio_data->skip_vid) + sysfs_remove_group(&dev->kobj, &it87_group_vid); +} + +static int __devinit it87_probe(struct platform_device *pdev) +{ struct it87_data *data; - int err = 0; - const char *name = ""; - int is_isa = i2c_is_isa_adapter(adapter); + struct resource *res; + struct device *dev = &pdev->dev; + struct it87_sio_data *sio_data = dev->platform_data; + const struct attribute_group *fan_group; + int err = 0, i; int enable_pwm_interface; - - if (!is_isa && - !i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) + int fan_beep_need_rw; + static const char *names[] = { + "it87", + "it8712", + "it8716", + "it8718", + "it8720", + }; + + res = platform_get_resource(pdev, IORESOURCE_IO, 0); + if (!request_region(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)); + err = -EBUSY; goto ERROR0; + } - /* Reserve the ISA region */ - if (is_isa) - if (!request_region(address, IT87_EXTENT, - it87_isa_driver.driver.name)) - goto ERROR0; - - /* For now, we presume we have a valid client. We create the - client structure, even though we cannot fill it completely yet. - But it allows us to access it87_{read,write}_value. */ - - if (!(data = kzalloc(sizeof(struct it87_data), GFP_KERNEL))) { + data = kzalloc(sizeof(struct it87_data), GFP_KERNEL); + if (!data) { err = -ENOMEM; goto ERROR1; } - new_client = &data->client; - if (is_isa) - mutex_init(&data->lock); - i2c_set_clientdata(new_client, data); - new_client->addr = address; - new_client->adapter = adapter; - new_client->driver = is_isa ? &it87_isa_driver : &it87_driver; - new_client->flags = 0; + data->addr = res->start; + data->type = sio_data->type; + data->revision = sio_data->revision; + data->name = names[sio_data->type]; /* Now, we do the remaining detection. */ - - if (kind < 0) { - if ((it87_read_value(new_client, IT87_REG_CONFIG) & 0x80) - || (!is_isa - && it87_read_value(new_client, IT87_REG_I2C_ADDR) != address)) { - err = -ENODEV; - goto ERROR2; - } - } - - /* Determine the chip type. */ - if (kind <= 0) { - i = it87_read_value(new_client, IT87_REG_CHIPID); - if (i == 0x90) { - kind = it87; - if (is_isa) { - switch (chip_type) { - case IT8712F_DEVID: - kind = it8712; - break; - case IT8716F_DEVID: - kind = it8716; - break; - } - } - } - else { - if (kind == 0) - dev_info(&adapter->dev, - "Ignoring 'force' parameter for unknown chip at " - "adapter %d, address 0x%02x\n", - i2c_adapter_id(adapter), address); - err = -ENODEV; - goto ERROR2; - } + if ((it87_read_value(data, IT87_REG_CONFIG) & 0x80) + || it87_read_value(data, IT87_REG_CHIPID) != 0x90) { + err = -ENODEV; + goto ERROR2; } - if (kind == it87) { - name = "it87"; - } else if (kind == it8712) { - name = "it8712"; - } else if (kind == it8716) { - name = "it8716"; - } + platform_set_drvdata(pdev, data); - /* Fill in the remaining client fields and put it into the global list */ - strlcpy(new_client->name, name, I2C_NAME_SIZE); - data->type = kind; - data->valid = 0; mutex_init(&data->update_lock); - /* Tell the I2C layer a new client has arrived */ - if ((err = i2c_attach_client(new_client))) - goto ERROR2; - - if (!is_isa) - dev_info(&new_client->dev, "The I2C interface to IT87xxF " - "hardware monitoring chips is deprecated. Please " - "report if you still rely on it.\n"); - /* Check PWM configuration */ - enable_pwm_interface = it87_check_pwm(new_client); + enable_pwm_interface = it87_check_pwm(dev); /* Initialize the IT87 chip */ - it87_init_client(new_client, data); + it87_init_device(pdev); /* Register sysfs hooks */ - data->class_dev = hwmon_device_register(&new_client->dev); - if (IS_ERR(data->class_dev)) { - err = PTR_ERR(data->class_dev); - goto ERROR3; - } + err = sysfs_create_group(&dev->kobj, &it87_group); + if (err) + goto ERROR2; - device_create_file(&new_client->dev, &sensor_dev_attr_in0_input.dev_attr); - device_create_file(&new_client->dev, &sensor_dev_attr_in1_input.dev_attr); - device_create_file(&new_client->dev, &sensor_dev_attr_in2_input.dev_attr); - device_create_file(&new_client->dev, &sensor_dev_attr_in3_input.dev_attr); - device_create_file(&new_client->dev, &sensor_dev_attr_in4_input.dev_attr); - device_create_file(&new_client->dev, &sensor_dev_attr_in5_input.dev_attr); - device_create_file(&new_client->dev, &sensor_dev_attr_in6_input.dev_attr); - device_create_file(&new_client->dev, &sensor_dev_attr_in7_input.dev_attr); - device_create_file(&new_client->dev, &sensor_dev_attr_in8_input.dev_attr); - device_create_file(&new_client->dev, &sensor_dev_attr_in0_min.dev_attr); - device_create_file(&new_client->dev, &sensor_dev_attr_in1_min.dev_attr); - device_create_file(&new_client->dev, &sensor_dev_attr_in2_min.dev_attr); - device_create_file(&new_client->dev, &sensor_dev_attr_in3_min.dev_attr); - device_create_file(&new_client->dev, &sensor_dev_attr_in4_min.dev_attr); - device_create_file(&new_client->dev, &sensor_dev_attr_in5_min.dev_attr); - device_create_file(&new_client->dev, &sensor_dev_attr_in6_min.dev_attr); - device_create_file(&new_client->dev, &sensor_dev_attr_in7_min.dev_attr); - device_create_file(&new_client->dev, &sensor_dev_attr_in0_max.dev_attr); - device_create_file(&new_client->dev, &sensor_dev_attr_in1_max.dev_attr); - device_create_file(&new_client->dev, &sensor_dev_attr_in2_max.dev_attr); - device_create_file(&new_client->dev, &sensor_dev_attr_in3_max.dev_attr); - device_create_file(&new_client->dev, &sensor_dev_attr_in4_max.dev_attr); - device_create_file(&new_client->dev, &sensor_dev_attr_in5_max.dev_attr); - device_create_file(&new_client->dev, &sensor_dev_attr_in6_max.dev_attr); - device_create_file(&new_client->dev, &sensor_dev_attr_in7_max.dev_attr); - device_create_file(&new_client->dev, &sensor_dev_attr_temp1_input.dev_attr); - device_create_file(&new_client->dev, &sensor_dev_attr_temp2_input.dev_attr); - device_create_file(&new_client->dev, &sensor_dev_attr_temp3_input.dev_attr); - device_create_file(&new_client->dev, &sensor_dev_attr_temp1_max.dev_attr); - device_create_file(&new_client->dev, &sensor_dev_attr_temp2_max.dev_attr); - device_create_file(&new_client->dev, &sensor_dev_attr_temp3_max.dev_attr); - device_create_file(&new_client->dev, &sensor_dev_attr_temp1_min.dev_attr); - device_create_file(&new_client->dev, &sensor_dev_attr_temp2_min.dev_attr); - device_create_file(&new_client->dev, &sensor_dev_attr_temp3_min.dev_attr); - device_create_file(&new_client->dev, &sensor_dev_attr_temp1_type.dev_attr); - device_create_file(&new_client->dev, &sensor_dev_attr_temp2_type.dev_attr); - device_create_file(&new_client->dev, &sensor_dev_attr_temp3_type.dev_attr); + if (sio_data->beep_pin) { + err = sysfs_create_group(&dev->kobj, &it87_group_beep); + if (err) + goto ERROR4; + } /* Do not create fan files for disabled fans */ - if (data->type == it8716) { /* 16-bit tachometers */ - if (data->has_fan & (1 << 0)) { - device_create_file(&new_client->dev, - &sensor_dev_attr_fan1_input16.dev_attr); - device_create_file(&new_client->dev, - &sensor_dev_attr_fan1_min16.dev_attr); - } - if (data->has_fan & (1 << 1)) { - device_create_file(&new_client->dev, - &sensor_dev_attr_fan2_input16.dev_attr); - device_create_file(&new_client->dev, - &sensor_dev_attr_fan2_min16.dev_attr); - } - if (data->has_fan & (1 << 2)) { - device_create_file(&new_client->dev, - &sensor_dev_attr_fan3_input16.dev_attr); - device_create_file(&new_client->dev, - &sensor_dev_attr_fan3_min16.dev_attr); - } - } else { - if (data->has_fan & (1 << 0)) { - device_create_file(&new_client->dev, - &sensor_dev_attr_fan1_input.dev_attr); - device_create_file(&new_client->dev, - &sensor_dev_attr_fan1_min.dev_attr); - device_create_file(&new_client->dev, - &sensor_dev_attr_fan1_div.dev_attr); - } - if (data->has_fan & (1 << 1)) { - device_create_file(&new_client->dev, - &sensor_dev_attr_fan2_input.dev_attr); - device_create_file(&new_client->dev, - &sensor_dev_attr_fan2_min.dev_attr); - device_create_file(&new_client->dev, - &sensor_dev_attr_fan2_div.dev_attr); - } - if (data->has_fan & (1 << 2)) { - device_create_file(&new_client->dev, - &sensor_dev_attr_fan3_input.dev_attr); - device_create_file(&new_client->dev, - &sensor_dev_attr_fan3_min.dev_attr); - device_create_file(&new_client->dev, - &sensor_dev_attr_fan3_div.dev_attr); + fan_group = it87_get_fan_group(data); + fan_beep_need_rw = 1; + for (i = 0; i < 5; i++) { + if (!(data->has_fan & (1 << i))) + continue; + err = sysfs_create_group(&dev->kobj, &fan_group[i]); + if (err) + goto ERROR4; + + if (sio_data->beep_pin) { + err = sysfs_create_file(&dev->kobj, + it87_attributes_fan_beep[i]); + if (err) + goto ERROR4; + 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; } } - device_create_file(&new_client->dev, &dev_attr_alarms); if (enable_pwm_interface) { - device_create_file(&new_client->dev, &sensor_dev_attr_pwm1_enable.dev_attr); - device_create_file(&new_client->dev, &sensor_dev_attr_pwm2_enable.dev_attr); - device_create_file(&new_client->dev, &sensor_dev_attr_pwm3_enable.dev_attr); - device_create_file(&new_client->dev, &sensor_dev_attr_pwm1.dev_attr); - device_create_file(&new_client->dev, &sensor_dev_attr_pwm2.dev_attr); - device_create_file(&new_client->dev, &sensor_dev_attr_pwm3.dev_attr); + 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 ERROR4; + + if (!has_old_autopwm(data)) + continue; + err = sysfs_create_group(&dev->kobj, + &it87_group_autopwm[i]); + if (err) + goto ERROR4; + } } - if (data->type == it8712 || data->type == it8716) { + if (!sio_data->skip_vid) { data->vrm = vid_which_vrm(); - device_create_file_vrm(new_client); - device_create_file_vid(new_client); + /* 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 ERROR4; + } + + data->hwmon_dev = hwmon_device_register(dev); + if (IS_ERR(data->hwmon_dev)) { + err = PTR_ERR(data->hwmon_dev); + goto ERROR4; } return 0; -ERROR3: - i2c_detach_client(new_client); +ERROR4: + it87_remove_files(dev); ERROR2: + platform_set_drvdata(pdev, NULL); kfree(data); ERROR1: - if (is_isa) - release_region(address, IT87_EXTENT); + release_region(res->start, IT87_EC_EXTENT); ERROR0: return err; } -static int it87_detach_client(struct i2c_client *client) +static int __devexit it87_remove(struct platform_device *pdev) { - struct it87_data *data = i2c_get_clientdata(client); - int err; + struct it87_data *data = platform_get_drvdata(pdev); - hwmon_device_unregister(data->class_dev); + hwmon_device_unregister(data->hwmon_dev); + it87_remove_files(&pdev->dev); - if ((err = i2c_detach_client(client))) - return err; - - if(i2c_is_isa_client(client)) - release_region(client->addr, IT87_EXTENT); + release_region(data->addr, IT87_EC_EXTENT); + platform_set_drvdata(pdev, NULL); kfree(data); return 0; } -/* The SMBus locks itself, but ISA access must be locked explicitly! - We don't want to lock the whole ISA bus, so we lock each client - separately. +/* 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 i2c_client *client, u8 reg) +static int it87_read_value(struct it87_data *data, u8 reg) { - struct it87_data *data = i2c_get_clientdata(client); - - int res; - if (i2c_is_isa_client(client)) { - mutex_lock(&data->lock); - outb_p(reg, client->addr + IT87_ADDR_REG_OFFSET); - res = inb_p(client->addr + IT87_DATA_REG_OFFSET); - mutex_unlock(&data->lock); - return res; - } else - return i2c_smbus_read_byte_data(client, reg); + outb_p(reg, data->addr + IT87_ADDR_REG_OFFSET); + return inb_p(data->addr + IT87_DATA_REG_OFFSET); } -/* The SMBus locks itself, but ISA access muse be locked explicitly! - We don't want to lock the whole ISA bus, so we lock each client - separately. +/* 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_write_value(struct i2c_client *client, u8 reg, u8 value) +static void it87_write_value(struct it87_data *data, u8 reg, u8 value) { - struct it87_data *data = i2c_get_clientdata(client); - - if (i2c_is_isa_client(client)) { - mutex_lock(&data->lock); - outb_p(reg, client->addr + IT87_ADDR_REG_OFFSET); - outb_p(value, client->addr + IT87_DATA_REG_OFFSET); - mutex_unlock(&data->lock); - return 0; - } else - return i2c_smbus_write_byte_data(client, reg, 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 i2c_client *client) +static int __devinit 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(client, IT87_REG_FAN_CTL); + 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. @@ -1116,7 +1771,7 @@ static int it87_check_pwm(struct i2c_client *client) u8 pwm[3]; for (i = 0; i < 3; i++) - pwm[i] = it87_read_value(client, + pwm[i] = it87_read_value(data, IT87_REG_PWM(i)); /* If any fan is in automatic pwm mode, the polarity @@ -1124,26 +1779,26 @@ static int it87_check_pwm(struct i2c_client *client) * better don't change anything (but still disable the * PWM interface). */ if (!((pwm[0] | pwm[1] | pwm[2]) & 0x80)) { - dev_info(&client->dev, "Reconfiguring PWM to " + dev_info(dev, "Reconfiguring PWM to " "active high polarity\n"); - it87_write_value(client, IT87_REG_FAN_CTL, + it87_write_value(data, IT87_REG_FAN_CTL, tmp | 0x87); for (i = 0; i < 3; i++) - it87_write_value(client, + it87_write_value(data, IT87_REG_PWM(i), 0x7f & ~pwm[i]); return 1; } - dev_info(&client->dev, "PWM configuration is " + dev_info(dev, "PWM configuration is " "too broken to be fixed\n"); } - dev_info(&client->dev, "Detected broken BIOS " + dev_info(dev, "Detected broken BIOS " "defaults, disabling PWM interface\n"); return 0; } else if (fix_pwm_polarity) { - dev_info(&client->dev, "PWM configuration looks " + dev_info(dev, "PWM configuration looks " "sane, won't touch\n"); } @@ -1151,154 +1806,191 @@ static int it87_check_pwm(struct i2c_client *client) } /* Called when we have found a new IT87. */ -static void it87_init_client(struct i2c_client *client, struct it87_data *data) +static void __devinit it87_init_device(struct platform_device *pdev) { + struct it87_sio_data *sio_data = pdev->dev.platform_data; + struct it87_data *data = platform_get_drvdata(pdev); int tmp, i; - - /* initialize to sane defaults: - * - if the chip is in manual pwm mode, this will be overwritten with - * the actual settings on the chip (so in this case, initialization - * is not needed) - * - if in automatic or on/off mode, we could switch to manual mode, - * read the registers and set manual_pwm_ctl accordingly, but currently - * this is not implemented, so we initialize to something sane */ + 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. */ for (i = 0; i < 3; i++) { - data->manual_pwm_ctl[i] = 0xff; + data->pwm_temp_map[i] = i; + data->pwm_duty[i] = 0x7f; /* Full speed */ + data->auto_pwm[i][3] = 0x7f; /* Full speed, hard-coded */ } - /* Check if temperature channnels are reset manually or by some reason */ - tmp = it87_read_value(client, IT87_REG_TEMP_ENABLE); - if ((tmp & 0x3f) == 0) { - /* Temp1,Temp3=thermistor; Temp2=thermal diode */ - tmp = (tmp & 0xc0) | 0x2a; - it87_write_value(client, IT87_REG_TEMP_ENABLE, tmp); + /* 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); } - data->sensor = tmp; + + /* 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(client, IT87_REG_VIN_ENABLE); + tmp = it87_read_value(data, IT87_REG_VIN_ENABLE); if ((tmp & 0xff) == 0) { /* Enable all voltage monitors */ - it87_write_value(client, IT87_REG_VIN_ENABLE, 0xff); + it87_write_value(data, IT87_REG_VIN_ENABLE, 0xff); } /* Check if tachometers are reset manually or by some reason */ - data->fan_main_ctrl = it87_read_value(client, IT87_REG_FAN_MAIN_CTRL); - if ((data->fan_main_ctrl & 0x70) == 0) { + 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 |= 0x70; - it87_write_value(client, IT87_REG_FAN_MAIN_CTRL, data->fan_main_ctrl); + data->fan_main_ctrl |= mask; + it87_write_value(data, IT87_REG_FAN_MAIN_CTRL, + data->fan_main_ctrl); } data->has_fan = (data->fan_main_ctrl >> 4) & 0x07; /* Set tachometers to 16-bit mode if needed */ - if (data->type == it8716) { - tmp = it87_read_value(client, IT87_REG_FAN_16BIT); + if (has_16bit_fans(data)) { + tmp = it87_read_value(data, IT87_REG_FAN_16BIT); if (~tmp & 0x07 & data->has_fan) { - dev_dbg(&client->dev, + dev_dbg(&pdev->dev, "Setting fan1-3 to 16-bit mode\n"); - it87_write_value(client, IT87_REG_FAN_16BIT, + it87_write_value(data, IT87_REG_FAN_16BIT, tmp | 0x07); } + /* IT8705F only supports three fans. */ + if (data->type != it87) { + if (tmp & (1 << 4)) + data->has_fan |= (1 << 3); /* fan4 enabled */ + if (tmp & (1 << 5)) + data->has_fan |= (1 << 4); /* fan5 enabled */ + } } - /* Set current fan mode registers and the default settings for the - * other mode registers */ - for (i = 0; i < 3; i++) { - if (data->fan_main_ctrl & (1 << i)) { - /* pwm mode */ - tmp = it87_read_value(client, IT87_REG_PWM(i)); - if (tmp & 0x80) { - /* automatic pwm - not yet implemented, but - * leave the settings made by the BIOS alone - * until a change is requested via the sysfs - * interface */ - } else { - /* manual pwm */ - data->manual_pwm_ctl[i] = PWM_FROM_REG(tmp); - } - } - } + /* Fan input pins may be used for alternative functions */ + data->has_fan &= ~sio_data->skip_fan; /* Start monitoring */ - it87_write_value(client, IT87_REG_CONFIG, - (it87_read_value(client, IT87_REG_CONFIG) & 0x36) + it87_write_value(data, IT87_REG_CONFIG, + (it87_read_value(data, IT87_REG_CONFIG) & 0x36) | (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 (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 i2c_client *client = to_i2c_client(dev); - struct it87_data *data = i2c_get_clientdata(client); + 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(client, IT87_REG_CONFIG, - it87_read_value(client, IT87_REG_CONFIG) | 0x40); + 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] = - it87_read_value(client, IT87_REG_VIN(i)); + it87_read_value(data, IT87_REG_VIN(i)); data->in_min[i] = - it87_read_value(client, IT87_REG_VIN_MIN(i)); + it87_read_value(data, IT87_REG_VIN_MIN(i)); data->in_max[i] = - it87_read_value(client, IT87_REG_VIN_MAX(i)); + it87_read_value(data, IT87_REG_VIN_MAX(i)); } /* in8 (battery) has no limit registers */ - data->in[8] = - it87_read_value(client, IT87_REG_VIN(8)); + data->in[8] = it87_read_value(data, IT87_REG_VIN(8)); - for (i = 0; i < 3; i++) { + for (i = 0; i < 5; i++) { /* Skip disabled fans */ if (!(data->has_fan & (1 << i))) continue; data->fan_min[i] = - it87_read_value(client, IT87_REG_FAN_MIN(i)); - data->fan[i] = it87_read_value(client, - IT87_REG_FAN(i)); + it87_read_value(data, IT87_REG_FAN_MIN[i]); + data->fan[i] = it87_read_value(data, + IT87_REG_FAN[i]); /* Add high byte if in 16-bit mode */ - if (data->type == it8716) { - data->fan[i] |= it87_read_value(client, - IT87_REG_FANX(i)) << 8; - data->fan_min[i] |= it87_read_value(client, - IT87_REG_FANX_MIN(i)) << 8; + if (has_16bit_fans(data)) { + data->fan[i] |= it87_read_value(data, + IT87_REG_FANX[i]) << 8; + data->fan_min[i] |= it87_read_value(data, + IT87_REG_FANX_MIN[i]) << 8; } } for (i = 0; i < 3; i++) { data->temp[i] = - it87_read_value(client, IT87_REG_TEMP(i)); + it87_read_value(data, IT87_REG_TEMP(i)); data->temp_high[i] = - it87_read_value(client, IT87_REG_TEMP_HIGH(i)); + it87_read_value(data, IT87_REG_TEMP_HIGH(i)); data->temp_low[i] = - it87_read_value(client, IT87_REG_TEMP_LOW(i)); + it87_read_value(data, IT87_REG_TEMP_LOW(i)); } /* Newer chips don't have clock dividers */ - if ((data->has_fan & 0x07) && data->type != it8716) { - i = it87_read_value(client, IT87_REG_FAN_DIV); + 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(client, IT87_REG_ALARM1) | - (it87_read_value(client, IT87_REG_ALARM2) << 8) | - (it87_read_value(client, IT87_REG_ALARM3) << 16); - data->fan_main_ctrl = it87_read_value(client, IT87_REG_FAN_MAIN_CTRL); - - data->sensor = it87_read_value(client, IT87_REG_TEMP_ENABLE); - /* The 8705 does not have VID capability */ + it87_read_value(data, IT87_REG_ALARM1) | + (it87_read_value(data, IT87_REG_ALARM2) << 8) | + (it87_read_value(data, IT87_REG_ALARM3) << 16); + data->beeps = it87_read_value(data, IT87_REG_BEEP_ENABLE); + + data->fan_main_ctrl = it87_read_value(data, + IT87_REG_FAN_MAIN_CTRL); + data->fan_ctl = it87_read_value(data, IT87_REG_FAN_CTL); + for (i = 0; i < 3; i++) + it87_update_pwm_ctrl(data, i); + + data->sensor = it87_read_value(data, IT87_REG_TEMP_ENABLE); + /* The 8705 does not have VID capability. + The 8718 and the 8720 don't use IT87_REG_VID for the + same purpose. */ if (data->type == it8712 || data->type == it8716) { - data->vid = it87_read_value(client, IT87_REG_VID); + 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; @@ -1312,20 +2004,75 @@ static struct it87_data *it87_update_device(struct device *dev) return data; } +static int __init it87_device_add(unsigned short address, + const struct it87_sio_data *sio_data) +{ + struct resource res = { + .start = address + IT87_EC_OFFSET, + .end = address + IT87_EC_OFFSET + IT87_EC_EXTENT - 1, + .name = DRVNAME, + .flags = IORESOURCE_IO, + }; + int err; + + err = acpi_check_resource_conflict(&res); + if (err) + goto exit; + + pdev = platform_device_alloc(DRVNAME, address); + if (!pdev) { + err = -ENOMEM; + printk(KERN_ERR DRVNAME ": Device allocation failed\n"); + goto exit; + } + + err = platform_device_add_resources(pdev, &res, 1); + if (err) { + printk(KERN_ERR DRVNAME ": 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) { + printk(KERN_ERR DRVNAME ": Platform data allocation failed\n"); + goto exit_device_put; + } + + err = platform_device_add(pdev); + if (err) { + printk(KERN_ERR DRVNAME ": Device addition failed (%d)\n", + err); + goto exit_device_put; + } + + return 0; + +exit_device_put: + platform_device_put(pdev); +exit: + return err; +} + static int __init sm_it87_init(void) { - int res; + int err; + unsigned short isa_address = 0; + struct it87_sio_data sio_data; - res = i2c_add_driver(&it87_driver); - if (res) - return res; + memset(&sio_data, 0, sizeof(struct it87_sio_data)); + err = it87_find(&isa_address, &sio_data); + if (err) + return err; + err = platform_driver_register(&it87_driver); + if (err) + return err; - if (!it87_find(&isa_address)) { - res = i2c_isa_add_driver(&it87_isa_driver); - if (res) { - i2c_del_driver(&it87_driver); - return res; - } + err = it87_device_add(isa_address, &sio_data); + if (err) { + platform_driver_unregister(&it87_driver); + return err; } return 0; @@ -1333,18 +2080,19 @@ static int __init sm_it87_init(void) static void __exit sm_it87_exit(void) { - if (isa_address) - i2c_isa_del_driver(&it87_isa_driver); - i2c_del_driver(&it87_driver); + platform_device_unregister(pdev); + platform_driver_unregister(&it87_driver); } -MODULE_AUTHOR("Chris Gauthron "); -MODULE_DESCRIPTION("IT8705F/8712F/8716F, SiS950 driver"); +MODULE_AUTHOR("Chris Gauthron, " + "Jean Delvare "); +MODULE_DESCRIPTION("IT8705F/8712F/8716F/8718F/8720F/8726F, SiS950 driver"); module_param(update_vbat, bool, 0); MODULE_PARM_DESC(update_vbat, "Update vbat if set else return powerup value"); module_param(fix_pwm_polarity, bool, 0); -MODULE_PARM_DESC(fix_pwm_polarity, "Force PWM polarity to active high (DANGEROUS)"); +MODULE_PARM_DESC(fix_pwm_polarity, + "Force PWM polarity to active high (DANGEROUS)"); MODULE_LICENSE("GPL"); module_init(sm_it87_init);