/*************************************************************************** * Copyright (C) 2006 by Hans Edgington <hans@edgington.nl> * * Copyright (C) 2007 by Hans de Goede <j.w.r.degoede@hhs.nl> * * * * 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., * * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * ***************************************************************************/ #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/err.h> #include <linux/mutex.h> #include <asm/io.h> #define DRVNAME "f71882fg" #define SIO_F71882FG_LD_HWM 0x04 /* Hardware monitor logical device*/ #define SIO_UNLOCK_KEY 0x87 /* Key to enable Super-I/O */ #define SIO_LOCK_KEY 0xAA /* Key to diasble Super-I/O */ #define SIO_REG_LDSEL 0x07 /* Logical device select */ #define SIO_REG_DEVID 0x20 /* Device ID (2 bytes) */ #define SIO_REG_DEVREV 0x22 /* Device revision */ #define SIO_REG_MANID 0x23 /* Fintek ID (2 bytes) */ #define SIO_REG_ENABLE 0x30 /* Logical device enable */ #define SIO_REG_ADDR 0x60 /* Logical device address (2 bytes) */ #define SIO_FINTEK_ID 0x1934 /* Manufacturers ID */ #define SIO_F71882_ID 0x0541 /* Chipset ID */ #define REGION_LENGTH 8 #define ADDR_REG_OFFSET 5 #define DATA_REG_OFFSET 6 #define F71882FG_REG_PECI 0x0A #define F71882FG_REG_IN_STATUS 0x12 #define F71882FG_REG_IN_BEEP 0x13 #define F71882FG_REG_IN(nr) (0x20 + (nr)) #define F71882FG_REG_IN1_HIGH 0x32 #define F71882FG_REG_FAN(nr) (0xA0 + (16 * (nr))) #define F71882FG_REG_FAN_STATUS 0x92 #define F71882FG_REG_FAN_BEEP 0x93 #define F71882FG_REG_TEMP(nr) (0x72 + 2 * (nr)) #define F71882FG_REG_TEMP_OVT(nr) (0x82 + 2 * (nr)) #define F71882FG_REG_TEMP_HIGH(nr) (0x83 + 2 * (nr)) #define F71882FG_REG_TEMP_STATUS 0x62 #define F71882FG_REG_TEMP_BEEP 0x63 #define F71882FG_REG_TEMP_HYST1 0x6C #define F71882FG_REG_TEMP_HYST23 0x6D #define F71882FG_REG_TEMP_TYPE 0x6B #define F71882FG_REG_TEMP_DIODE_OPEN 0x6F #define F71882FG_REG_START 0x01 #define FAN_MIN_DETECT 366 /* Lowest detectable fanspeed */ 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 *f71882fg_pdev = NULL; /* Super-I/O Function prototypes */ static inline int superio_inb(int base, int reg); static inline int superio_inw(int base, int reg); static inline void superio_enter(int base); static inline void superio_select(int base, int ld); static inline void superio_exit(int base); static inline u16 fan_from_reg ( u16 reg ); struct f71882fg_data { unsigned short addr; struct device *hwmon_dev; struct mutex update_lock; char valid; /* !=0 if following fields are valid */ unsigned long last_updated; /* In jiffies */ unsigned long last_limits; /* In jiffies */ /* Register Values */ u8 in[9]; u8 in1_max; u8 in_status; u8 in_beep; u16 fan[4]; u8 fan_status; u8 fan_beep; u8 temp[3]; u8 temp_ovt[3]; u8 temp_high[3]; u8 temp_hyst[3]; u8 temp_type[3]; u8 temp_status; u8 temp_beep; u8 temp_diode_open; }; static u8 f71882fg_read8(struct f71882fg_data *data, u8 reg); static u16 f71882fg_read16(struct f71882fg_data *data, u8 reg); static void f71882fg_write8(struct f71882fg_data *data, u8 reg, u8 val); /* Sysfs in*/ static ssize_t show_in(struct device *dev, struct device_attribute *devattr, char *buf); static ssize_t show_in_max(struct device *dev, struct device_attribute *devattr, char *buf); static ssize_t store_in_max(struct device *dev, struct device_attribute *devattr, const char *buf, size_t count); static ssize_t show_in_beep(struct device *dev, struct device_attribute *devattr, char *buf); static ssize_t store_in_beep(struct device *dev, struct device_attribute *devattr, const char *buf, size_t count); static ssize_t show_in_alarm(struct device *dev, struct device_attribute *devattr, char *buf); /* Sysfs Fan */ static ssize_t show_fan(struct device *dev, struct device_attribute *devattr, char *buf); static ssize_t show_fan_beep(struct device *dev, struct device_attribute *devattr, char *buf); static ssize_t store_fan_beep(struct device *dev, struct device_attribute *devattr, const char *buf, size_t count); static ssize_t show_fan_alarm(struct device *dev, struct device_attribute *devattr, char *buf); /* Sysfs Temp */ static ssize_t show_temp(struct device *dev, struct device_attribute *devattr, char *buf); static ssize_t show_temp_max(struct device *dev, struct device_attribute *devattr, char *buf); static ssize_t store_temp_max(struct device *dev, struct device_attribute *devattr, const char *buf, size_t count); static ssize_t show_temp_max_hyst(struct device *dev, struct device_attribute *devattr, char *buf); static ssize_t store_temp_max_hyst(struct device *dev, struct device_attribute *devattr, const char *buf, size_t count); static ssize_t show_temp_crit(struct device *dev, struct device_attribute *devattr, char *buf); static ssize_t store_temp_crit(struct device *dev, struct device_attribute *devattr, const char *buf, size_t count); static ssize_t show_temp_crit_hyst(struct device *dev, struct device_attribute *devattr, char *buf); static ssize_t show_temp_type(struct device *dev, struct device_attribute *devattr, char *buf); static ssize_t show_temp_beep(struct device *dev, struct device_attribute *devattr, char *buf); static ssize_t store_temp_beep(struct device *dev, struct device_attribute *devattr, const char *buf, size_t count); static ssize_t show_temp_alarm(struct device *dev, struct device_attribute *devattr, char *buf); static ssize_t show_temp_fault(struct device *dev, struct device_attribute *devattr, char *buf); /* Sysfs misc */ static ssize_t show_name(struct device *dev, struct device_attribute *devattr, char *buf); static int __devinit f71882fg_probe(struct platform_device * pdev); static int __devexit f71882fg_remove(struct platform_device *pdev); static int __init f71882fg_init(void); static int __init f71882fg_find(int sioaddr, unsigned short *address); static int __init f71882fg_device_add(unsigned short address); static void __exit f71882fg_exit(void); static struct platform_driver f71882fg_driver = { .driver = { .owner = THIS_MODULE, .name = DRVNAME, }, .probe = f71882fg_probe, .remove = __devexit_p(f71882fg_remove), }; static struct device_attribute f71882fg_dev_attr[] = { __ATTR( name, S_IRUGO, show_name, NULL ), }; static struct sensor_device_attribute f71882fg_in_temp_attr[] = { SENSOR_ATTR(in0_input, S_IRUGO, show_in, NULL, 0), SENSOR_ATTR(in1_input, S_IRUGO, show_in, NULL, 1), SENSOR_ATTR(in1_max, S_IRUGO|S_IWUSR, show_in_max, store_in_max, 1), SENSOR_ATTR(in1_beep, S_IRUGO|S_IWUSR, show_in_beep, store_in_beep, 1), SENSOR_ATTR(in1_alarm, S_IRUGO, show_in_alarm, NULL, 1), SENSOR_ATTR(in2_input, S_IRUGO, show_in, NULL, 2), SENSOR_ATTR(in3_input, S_IRUGO, show_in, NULL, 3), SENSOR_ATTR(in4_input, S_IRUGO, show_in, NULL, 4), SENSOR_ATTR(in5_input, S_IRUGO, show_in, NULL, 5), SENSOR_ATTR(in6_input, S_IRUGO, show_in, NULL, 6), SENSOR_ATTR(in7_input, S_IRUGO, show_in, NULL, 7), SENSOR_ATTR(in8_input, S_IRUGO, show_in, NULL, 8), SENSOR_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0), SENSOR_ATTR(temp1_max, S_IRUGO|S_IWUSR, show_temp_max, store_temp_max, 0), SENSOR_ATTR(temp1_max_hyst, S_IRUGO|S_IWUSR, show_temp_max_hyst, store_temp_max_hyst, 0), SENSOR_ATTR(temp1_crit, S_IRUGO|S_IWUSR, show_temp_crit, store_temp_crit, 0), SENSOR_ATTR(temp1_crit_hyst, S_IRUGO, show_temp_crit_hyst, NULL, 0), SENSOR_ATTR(temp1_type, S_IRUGO, show_temp_type, NULL, 0), SENSOR_ATTR(temp1_beep, S_IRUGO|S_IWUSR, show_temp_beep, store_temp_beep, 0), SENSOR_ATTR(temp1_alarm, S_IRUGO, show_temp_alarm, NULL, 0), SENSOR_ATTR(temp1_fault, S_IRUGO, show_temp_fault, NULL, 0), SENSOR_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 1), SENSOR_ATTR(temp2_max, S_IRUGO|S_IWUSR, show_temp_max, store_temp_max, 1), SENSOR_ATTR(temp2_max_hyst, S_IRUGO|S_IWUSR, show_temp_max_hyst, store_temp_max_hyst, 1), SENSOR_ATTR(temp2_crit, S_IRUGO|S_IWUSR, show_temp_crit, store_temp_crit, 1), SENSOR_ATTR(temp2_crit_hyst, S_IRUGO, show_temp_crit_hyst, NULL, 1), SENSOR_ATTR(temp2_type, S_IRUGO, show_temp_type, NULL, 1), SENSOR_ATTR(temp2_beep, S_IRUGO|S_IWUSR, show_temp_beep, store_temp_beep, 1), SENSOR_ATTR(temp2_alarm, S_IRUGO, show_temp_alarm, NULL, 1), SENSOR_ATTR(temp2_fault, S_IRUGO, show_temp_fault, NULL, 1), SENSOR_ATTR(temp3_input, S_IRUGO, show_temp, NULL, 2), SENSOR_ATTR(temp3_max, S_IRUGO|S_IWUSR, show_temp_max, store_temp_max, 2), SENSOR_ATTR(temp3_max_hyst, S_IRUGO|S_IWUSR, show_temp_max_hyst, store_temp_max_hyst, 2), SENSOR_ATTR(temp3_crit, S_IRUGO|S_IWUSR, show_temp_crit, store_temp_crit, 2), SENSOR_ATTR(temp3_crit_hyst, S_IRUGO, show_temp_crit_hyst, NULL, 2), SENSOR_ATTR(temp3_type, S_IRUGO, show_temp_type, NULL, 2), SENSOR_ATTR(temp3_beep, S_IRUGO|S_IWUSR, show_temp_beep, store_temp_beep, 2), SENSOR_ATTR(temp3_alarm, S_IRUGO, show_temp_alarm, NULL, 2), SENSOR_ATTR(temp3_fault, S_IRUGO, show_temp_fault, NULL, 2) }; static struct sensor_device_attribute f71882fg_fan_attr[] = { SENSOR_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0), SENSOR_ATTR(fan1_beep, S_IRUGO|S_IWUSR, show_fan_beep, store_fan_beep, 0), SENSOR_ATTR(fan1_alarm, S_IRUGO, show_fan_alarm, NULL, 0), SENSOR_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1), SENSOR_ATTR(fan2_beep, S_IRUGO|S_IWUSR, show_fan_beep, store_fan_beep, 1), SENSOR_ATTR(fan2_alarm, S_IRUGO, show_fan_alarm, NULL, 1), SENSOR_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 2), SENSOR_ATTR(fan3_beep, S_IRUGO|S_IWUSR, show_fan_beep, store_fan_beep, 2), SENSOR_ATTR(fan3_alarm, S_IRUGO, show_fan_alarm, NULL, 2), SENSOR_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 3), SENSOR_ATTR(fan4_beep, S_IRUGO|S_IWUSR, show_fan_beep, store_fan_beep, 3), SENSOR_ATTR(fan4_alarm, S_IRUGO, show_fan_alarm, NULL, 3) }; /* Super I/O functions */ static inline int superio_inb(int base, int reg) { outb(reg, base); return inb(base + 1); } static int superio_inw(int base, int reg) { int val; outb(reg++, base); val = inb(base + 1) << 8; outb(reg, base); val |= inb(base + 1); return val; } static inline void superio_enter(int base) { /* according to the datasheet the key must be send twice! */ outb( SIO_UNLOCK_KEY, base); outb( SIO_UNLOCK_KEY, base); } static inline void superio_select( int base, int ld) { outb(SIO_REG_LDSEL, base); outb(ld, base + 1); } static inline void superio_exit(int base) { outb(SIO_LOCK_KEY, base); } static inline u16 fan_from_reg(u16 reg) { return reg ? (1500000 / reg) : 0; } static u8 f71882fg_read8(struct f71882fg_data *data, u8 reg) { u8 val; outb(reg, data->addr + ADDR_REG_OFFSET); val = inb(data->addr + DATA_REG_OFFSET); return val; } static u16 f71882fg_read16(struct f71882fg_data *data, u8 reg) { u16 val; outb(reg++, data->addr + ADDR_REG_OFFSET); val = inb(data->addr + DATA_REG_OFFSET) << 8; outb(reg, data->addr + ADDR_REG_OFFSET); val |= inb(data->addr + DATA_REG_OFFSET); return val; } static void f71882fg_write8(struct f71882fg_data *data, u8 reg, u8 val) { outb(reg, data->addr + ADDR_REG_OFFSET); outb(val, data->addr + DATA_REG_OFFSET); } static struct f71882fg_data *f71882fg_update_device(struct device * dev) { struct f71882fg_data *data = dev_get_drvdata(dev); int nr, reg, reg2; mutex_lock(&data->update_lock); /* Update once every 60 seconds */ if ( time_after(jiffies, data->last_limits + 60 * HZ ) || !data->valid) { data->in1_max = f71882fg_read8(data, F71882FG_REG_IN1_HIGH); data->in_beep = f71882fg_read8(data, F71882FG_REG_IN_BEEP); /* Get High & boundary temps*/ for (nr = 0; nr < 3; nr++) { data->temp_ovt[nr] = f71882fg_read8(data, F71882FG_REG_TEMP_OVT(nr)); data->temp_high[nr] = f71882fg_read8(data, F71882FG_REG_TEMP_HIGH(nr)); } /* Have to hardcode hyst*/ data->temp_hyst[0] = f71882fg_read8(data, F71882FG_REG_TEMP_HYST1) >> 4; /* Hyst temps 2 & 3 stored in same register */ reg = f71882fg_read8(data, F71882FG_REG_TEMP_HYST23); data->temp_hyst[1] = reg & 0x0F; data->temp_hyst[2] = reg >> 4; /* Have to hardcode type, because temp1 is special */ reg = f71882fg_read8(data, F71882FG_REG_TEMP_TYPE); reg2 = f71882fg_read8(data, F71882FG_REG_PECI); if ((reg2 & 0x03) == 0x01) data->temp_type[0] = 6 /* PECI */; else if ((reg2 & 0x03) == 0x02) data->temp_type[0] = 5 /* AMDSI */; else data->temp_type[0] = (reg & 0x02) ? 2 : 4; data->temp_type[1] = (reg & 0x04) ? 2 : 4; data->temp_type[2] = (reg & 0x08) ? 2 : 4; data->temp_beep = f71882fg_read8(data, F71882FG_REG_TEMP_BEEP); data->fan_beep = f71882fg_read8(data, F71882FG_REG_FAN_BEEP); data->last_limits = jiffies; } /* Update every second */ if (time_after(jiffies, data->last_updated + HZ) || !data->valid) { data->temp_status = f71882fg_read8(data, F71882FG_REG_TEMP_STATUS); data->temp_diode_open = f71882fg_read8(data, F71882FG_REG_TEMP_DIODE_OPEN); for (nr = 0; nr < 3; nr++) data->temp[nr] = f71882fg_read8(data, F71882FG_REG_TEMP(nr)); data->fan_status = f71882fg_read8(data, F71882FG_REG_FAN_STATUS); for (nr = 0; nr < 4; nr++) data->fan[nr] = f71882fg_read16(data, F71882FG_REG_FAN(nr)); data->in_status = f71882fg_read8(data, F71882FG_REG_IN_STATUS); for (nr = 0; nr < 9; nr++) data->in[nr] = f71882fg_read8(data, F71882FG_REG_IN(nr)); data->last_updated = jiffies; data->valid = 1; } mutex_unlock(&data->update_lock); return data; } /* Sysfs Interface */ static ssize_t show_fan(struct device *dev, struct device_attribute *devattr, char *buf) { struct f71882fg_data *data = f71882fg_update_device(dev); int nr = to_sensor_dev_attr(devattr)->index; int speed = fan_from_reg(data->fan[nr]); if (speed == FAN_MIN_DETECT) speed = 0; return sprintf(buf, "%d\n", speed); } static ssize_t show_fan_beep(struct device *dev, struct device_attribute *devattr, char *buf) { struct f71882fg_data *data = f71882fg_update_device(dev); int nr = to_sensor_dev_attr(devattr)->index; if (data->fan_beep & (1 << nr)) return sprintf(buf, "1\n"); else return sprintf(buf, "0\n"); } static ssize_t store_fan_beep(struct device *dev, struct device_attribute *devattr, const char *buf, size_t count) { struct f71882fg_data *data = dev_get_drvdata(dev); int nr = to_sensor_dev_attr(devattr)->index; int val = simple_strtoul(buf, NULL, 10); mutex_lock(&data->update_lock); if (val) data->fan_beep |= 1 << nr; else data->fan_beep &= ~(1 << nr); f71882fg_write8(data, F71882FG_REG_FAN_BEEP, data->fan_beep); mutex_unlock(&data->update_lock); return count; } static ssize_t show_fan_alarm(struct device *dev, struct device_attribute *devattr, char *buf) { struct f71882fg_data *data = f71882fg_update_device(dev); int nr = to_sensor_dev_attr(devattr)->index; if (data->fan_status & (1 << nr)) return sprintf(buf, "1\n"); else return sprintf(buf, "0\n"); } static ssize_t show_in(struct device *dev, struct device_attribute *devattr, char *buf) { struct f71882fg_data *data = f71882fg_update_device(dev); int nr = to_sensor_dev_attr(devattr)->index; return sprintf(buf, "%d\n", data->in[nr] * 8); } static ssize_t show_in_max(struct device *dev, struct device_attribute *devattr, char *buf) { struct f71882fg_data *data = f71882fg_update_device(dev); return sprintf(buf, "%d\n", data->in1_max * 8); } static ssize_t store_in_max(struct device *dev, struct device_attribute *devattr, const char *buf, size_t count) { struct f71882fg_data *data = dev_get_drvdata(dev); int val = simple_strtoul(buf, NULL, 10) / 8; if (val > 255) val = 255; mutex_lock(&data->update_lock); f71882fg_write8(data, F71882FG_REG_IN1_HIGH, val); data->in1_max = val; mutex_unlock(&data->update_lock); return count; } static ssize_t show_in_beep(struct device *dev, struct device_attribute *devattr, char *buf) { struct f71882fg_data *data = f71882fg_update_device(dev); int nr = to_sensor_dev_attr(devattr)->index; if (data->in_beep & (1 << nr)) return sprintf(buf, "1\n"); else return sprintf(buf, "0\n"); } static ssize_t store_in_beep(struct device *dev, struct device_attribute *devattr, const char *buf, size_t count) { struct f71882fg_data *data = dev_get_drvdata(dev); int nr = to_sensor_dev_attr(devattr)->index; int val = simple_strtoul(buf, NULL, 10); mutex_lock(&data->update_lock); if (val) data->in_beep |= 1 << nr; else data->in_beep &= ~(1 << nr); f71882fg_write8(data, F71882FG_REG_IN_BEEP, data->in_beep); mutex_unlock(&data->update_lock); return count; } static ssize_t show_in_alarm(struct device *dev, struct device_attribute *devattr, char *buf) { struct f71882fg_data *data = f71882fg_update_device(dev); int nr = to_sensor_dev_attr(devattr)->index; if (data->in_status & (1 << nr)) return sprintf(buf, "1\n"); else return sprintf(buf, "0\n"); } static ssize_t show_temp(struct device *dev, struct device_attribute *devattr, char *buf) { struct f71882fg_data *data = f71882fg_update_device(dev); int nr = to_sensor_dev_attr(devattr)->index; return sprintf(buf, "%d\n", data->temp[nr] * 1000); } static ssize_t show_temp_max(struct device *dev, struct device_attribute *devattr, char *buf) { struct f71882fg_data *data = f71882fg_update_device(dev); int nr = to_sensor_dev_attr(devattr)->index; return sprintf(buf, "%d\n", data->temp_high[nr] * 1000); } static ssize_t store_temp_max(struct device *dev, struct device_attribute *devattr, const char *buf, size_t count) { struct f71882fg_data *data = dev_get_drvdata(dev); int nr = to_sensor_dev_attr(devattr)->index; int val = simple_strtoul(buf, NULL, 10) / 1000; if (val > 255) val = 255; mutex_lock(&data->update_lock); f71882fg_write8(data, F71882FG_REG_TEMP_HIGH(nr), val); data->temp_high[nr] = val; mutex_unlock(&data->update_lock); return count; } static ssize_t show_temp_max_hyst(struct device *dev, struct device_attribute *devattr, char *buf) { struct f71882fg_data *data = f71882fg_update_device(dev); int nr = to_sensor_dev_attr(devattr)->index; return sprintf(buf, "%d\n", (data->temp_high[nr] - data->temp_hyst[nr]) * 1000); } static ssize_t store_temp_max_hyst(struct device *dev, struct device_attribute *devattr, const char *buf, size_t count) { struct f71882fg_data *data = dev_get_drvdata(dev); int nr = to_sensor_dev_attr(devattr)->index; int val = simple_strtoul(buf, NULL, 10) / 1000; ssize_t ret = count; mutex_lock(&data->update_lock); /* convert abs to relative and check */ val = data->temp_high[nr] - val; if (val < 0 || val > 15) { ret = -EINVAL; goto store_temp_max_hyst_exit; } data->temp_hyst[nr] = val; /* convert value to register contents */ switch (nr) { case 0: val = val << 4; break; case 1: val = val | (data->temp_hyst[2] << 4); break; case 2: val = data->temp_hyst[1] | (val << 4); break; } f71882fg_write8(data, nr ? F71882FG_REG_TEMP_HYST23 : F71882FG_REG_TEMP_HYST1, val); store_temp_max_hyst_exit: mutex_unlock(&data->update_lock); return ret; } static ssize_t show_temp_crit(struct device *dev, struct device_attribute *devattr, char *buf) { struct f71882fg_data *data = f71882fg_update_device(dev); int nr = to_sensor_dev_attr(devattr)->index; return sprintf(buf, "%d\n", data->temp_ovt[nr] * 1000); } static ssize_t store_temp_crit(struct device *dev, struct device_attribute *devattr, const char *buf, size_t count) { struct f71882fg_data *data = dev_get_drvdata(dev); int nr = to_sensor_dev_attr(devattr)->index; int val = simple_strtoul(buf, NULL, 10) / 1000; if (val > 255) val = 255; mutex_lock(&data->update_lock); f71882fg_write8(data, F71882FG_REG_TEMP_OVT(nr), val); data->temp_ovt[nr] = val; mutex_unlock(&data->update_lock); return count; } static ssize_t show_temp_crit_hyst(struct device *dev, struct device_attribute *devattr, char *buf) { struct f71882fg_data *data = f71882fg_update_device(dev); int nr = to_sensor_dev_attr(devattr)->index; return sprintf(buf, "%d\n", (data->temp_ovt[nr] - data->temp_hyst[nr]) * 1000); } static ssize_t show_temp_type(struct device *dev, struct device_attribute *devattr, char *buf) { struct f71882fg_data *data = f71882fg_update_device(dev); int nr = to_sensor_dev_attr(devattr)->index; return sprintf(buf, "%d\n", data->temp_type[nr]); } static ssize_t show_temp_beep(struct device *dev, struct device_attribute *devattr, char *buf) { struct f71882fg_data *data = f71882fg_update_device(dev); int nr = to_sensor_dev_attr(devattr)->index; if (data->temp_beep & (1 << (nr + 1))) return sprintf(buf, "1\n"); else return sprintf(buf, "0\n"); } static ssize_t store_temp_beep(struct device *dev, struct device_attribute *devattr, const char *buf, size_t count) { struct f71882fg_data *data = dev_get_drvdata(dev); int nr = to_sensor_dev_attr(devattr)->index; int val = simple_strtoul(buf, NULL, 10); mutex_lock(&data->update_lock); if (val) data->temp_beep |= 1 << (nr + 1); else data->temp_beep &= ~(1 << (nr + 1)); f71882fg_write8(data, F71882FG_REG_TEMP_BEEP, data->temp_beep); mutex_unlock(&data->update_lock); return count; } static ssize_t show_temp_alarm(struct device *dev, struct device_attribute *devattr, char *buf) { struct f71882fg_data *data = f71882fg_update_device(dev); int nr = to_sensor_dev_attr(devattr)->index; if (data->temp_status & (1 << (nr + 1))) return sprintf(buf, "1\n"); else return sprintf(buf, "0\n"); } static ssize_t show_temp_fault(struct device *dev, struct device_attribute *devattr, char *buf) { struct f71882fg_data *data = f71882fg_update_device(dev); int nr = to_sensor_dev_attr(devattr)->index; if (data->temp_diode_open & (1 << (nr + 1))) return sprintf(buf, "1\n"); else return sprintf(buf, "0\n"); } static ssize_t show_name(struct device *dev, struct device_attribute *devattr, char *buf) { return sprintf(buf, DRVNAME "\n"); } static int __devinit f71882fg_probe(struct platform_device * pdev) { struct f71882fg_data *data; int err, i; u8 start_reg; if (!(data = kzalloc(sizeof(struct f71882fg_data), GFP_KERNEL))) return -ENOMEM; data->addr = platform_get_resource(pdev, IORESOURCE_IO, 0)->start; mutex_init(&data->update_lock); platform_set_drvdata(pdev, data); /* Register sysfs interface files */ for (i = 0; i < ARRAY_SIZE(f71882fg_dev_attr); i++) { err = device_create_file(&pdev->dev, &f71882fg_dev_attr[i]); if (err) goto exit_unregister_sysfs; } start_reg = f71882fg_read8(data, F71882FG_REG_START); if (start_reg & 0x01) { for (i = 0; i < ARRAY_SIZE(f71882fg_in_temp_attr); i++) { err = device_create_file(&pdev->dev, &f71882fg_in_temp_attr[i].dev_attr); if (err) goto exit_unregister_sysfs; } } if (start_reg & 0x02) { for (i = 0; i < ARRAY_SIZE(f71882fg_fan_attr); i++) { err = device_create_file(&pdev->dev, &f71882fg_fan_attr[i].dev_attr); if (err) goto exit_unregister_sysfs; } } data->hwmon_dev = hwmon_device_register(&pdev->dev); if (IS_ERR(data->hwmon_dev)) { err = PTR_ERR(data->hwmon_dev); goto exit_unregister_sysfs; } return 0; exit_unregister_sysfs: for (i = 0; i < ARRAY_SIZE(f71882fg_dev_attr); i++) device_remove_file(&pdev->dev, &f71882fg_dev_attr[i]); for (i = 0; i < ARRAY_SIZE(f71882fg_in_temp_attr); i++) device_remove_file(&pdev->dev, &f71882fg_in_temp_attr[i].dev_attr); for (i = 0; i < ARRAY_SIZE(f71882fg_fan_attr); i++) device_remove_file(&pdev->dev, &f71882fg_fan_attr[i].dev_attr); kfree(data); return err; } static int __devexit f71882fg_remove(struct platform_device *pdev) { int i; struct f71882fg_data *data = platform_get_drvdata(pdev); platform_set_drvdata(pdev, NULL); hwmon_device_unregister(data->hwmon_dev); for (i = 0; i < ARRAY_SIZE(f71882fg_dev_attr); i++) device_remove_file(&pdev->dev, &f71882fg_dev_attr[i]); for (i = 0; i < ARRAY_SIZE(f71882fg_in_temp_attr); i++) device_remove_file(&pdev->dev, &f71882fg_in_temp_attr[i].dev_attr); for (i = 0; i < ARRAY_SIZE(f71882fg_fan_attr); i++) device_remove_file(&pdev->dev, &f71882fg_fan_attr[i].dev_attr); kfree(data); return 0; } static int __init f71882fg_find(int sioaddr, unsigned short *address) { int err = -ENODEV; u16 devid; u8 start_reg; struct f71882fg_data data; superio_enter(sioaddr); devid = superio_inw(sioaddr, SIO_REG_MANID); if (devid != SIO_FINTEK_ID) { printk(KERN_INFO DRVNAME ": Not a Fintek device\n"); goto exit; } devid = force_id ? force_id : superio_inw(sioaddr, SIO_REG_DEVID); if (devid != SIO_F71882_ID) { printk(KERN_INFO DRVNAME ": Unsupported Fintek device\n"); goto exit; } superio_select(sioaddr, SIO_F71882FG_LD_HWM); if (!(superio_inb(sioaddr, SIO_REG_ENABLE) & 0x01)) { printk(KERN_WARNING DRVNAME ": Device not activated\n"); goto exit; } *address = superio_inw(sioaddr, SIO_REG_ADDR); if (*address == 0) { printk(KERN_WARNING DRVNAME ": Base address not set\n"); goto exit; } *address &= ~(REGION_LENGTH - 1); /* Ignore 3 LSB */ data.addr = *address; start_reg = f71882fg_read8(&data, F71882FG_REG_START); if (!(start_reg & 0x03)) { printk(KERN_WARNING DRVNAME ": Hardware monitoring not activated\n"); goto exit; } err = 0; printk(KERN_INFO DRVNAME ": Found F71882FG chip at %#x, revision %d\n", (unsigned int)*address, (int)superio_inb(sioaddr, SIO_REG_DEVREV)); exit: superio_exit(sioaddr); return err; } static int __init f71882fg_device_add(unsigned short address) { struct resource res = { .start = address, .end = address + REGION_LENGTH - 1, .flags = IORESOURCE_IO, }; int err; f71882fg_pdev = platform_device_alloc(DRVNAME, address); if (!f71882fg_pdev) return -ENOMEM; res.name = f71882fg_pdev->name; err = platform_device_add_resources(f71882fg_pdev, &res, 1); if (err) { printk(KERN_ERR DRVNAME ": Device resource addition failed\n"); goto exit_device_put; } err = platform_device_add(f71882fg_pdev); if (err) { printk(KERN_ERR DRVNAME ": Device addition failed\n"); goto exit_device_put; } return 0; exit_device_put: platform_device_put(f71882fg_pdev); return err; } static int __init f71882fg_init(void) { int err = -ENODEV; unsigned short address; if (f71882fg_find(0x2e, &address) && f71882fg_find(0x4e, &address)) goto exit; if ((err = platform_driver_register(&f71882fg_driver))) goto exit; if ((err = f71882fg_device_add(address))) goto exit_driver; return 0; exit_driver: platform_driver_unregister(&f71882fg_driver); exit: return err; } static void __exit f71882fg_exit(void) { platform_device_unregister(f71882fg_pdev); platform_driver_unregister(&f71882fg_driver); } MODULE_DESCRIPTION("F71882FG Hardware Monitoring Driver"); MODULE_AUTHOR("Hans Edgington (hans@edgington.nl)"); MODULE_LICENSE("GPL"); module_init(f71882fg_init); module_exit(f71882fg_exit);