diff options
| -rw-r--r-- | Documentation/hwmon/sysfs-interface | 18 | ||||
| -rw-r--r-- | MAINTAINERS | 6 | ||||
| -rw-r--r-- | drivers/hwmon/Kconfig | 10 | ||||
| -rw-r--r-- | drivers/hwmon/Makefile | 1 | ||||
| -rw-r--r-- | drivers/hwmon/f71805f.c | 908 |
5 files changed, 942 insertions, 1 deletions
diff --git a/Documentation/hwmon/sysfs-interface b/Documentation/hwmon/sysfs-interface index 764cdc5480e7..a0d0ab24288e 100644 --- a/Documentation/hwmon/sysfs-interface +++ b/Documentation/hwmon/sysfs-interface @@ -179,11 +179,12 @@ temp[1-*]_auto_point[1-*]_temp_hyst **************** temp[1-3]_type Sensor type selection. - Integers 1, 2, 3 or thermistor Beta value (3435) + Integers 1 to 4 or thermistor Beta value (typically 3435) Read/Write. 1: PII/Celeron Diode 2: 3904 transistor 3: thermal diode + 4: thermistor (default/unknown Beta) Not all types are supported by all chips temp[1-4]_max Temperature max value. @@ -261,6 +262,21 @@ alarms Alarm bitmask. of individual bits. Bits are defined in kernel/include/sensors.h. +alarms_in Alarm bitmask relative to in (voltage) channels + Read only + A '1' bit means an alarm, LSB corresponds to in0 and so on + Prefered to 'alarms' for newer chips + +alarms_fan Alarm bitmask relative to fan channels + Read only + A '1' bit means an alarm, LSB corresponds to fan1 and so on + Prefered to 'alarms' for newer chips + +alarms_temp Alarm bitmask relative to temp (temperature) channels + Read only + A '1' bit means an alarm, LSB corresponds to temp1 and so on + Prefered to 'alarms' for newer chips + beep_enable Beep/interrupt enable 0 to disable. 1 to enable. diff --git a/MAINTAINERS b/MAINTAINERS index 11d44daa6025..5b7a154d4432 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -929,6 +929,12 @@ M: sct@redhat.com, akpm@osdl.org, adilger@clusterfs.com L: ext3-users@redhat.com S: Maintained +F71805F HARDWARE MONITORING DRIVER +P: Jean Delvare +M: khali@linux-fr.org +L: lm-sensors@lm-sensors.org +S: Maintained + FARSYNC SYNCHRONOUS DRIVER P: Kevin Curtis M: kevin.curtis@farsite.co.uk diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig index c58295914365..7230d4e08196 100644 --- a/drivers/hwmon/Kconfig +++ b/drivers/hwmon/Kconfig @@ -113,6 +113,16 @@ config SENSORS_DS1621 This driver can also be built as a module. If so, the module will be called ds1621. +config SENSORS_F71805F + tristate "Fintek F71805F/FG" + depends on HWMON && EXPERIMENTAL + help + If you say yes here you get support for hardware monitoring + features of the Fintek F71805F/FG chips. + + This driver can also be built as a module. If so, the module + will be called f71805f. + config SENSORS_FSCHER tristate "FSC Hermes" depends on HWMON && I2C && EXPERIMENTAL diff --git a/drivers/hwmon/Makefile b/drivers/hwmon/Makefile index 06d4a1d14105..fbdb8d911a72 100644 --- a/drivers/hwmon/Makefile +++ b/drivers/hwmon/Makefile @@ -18,6 +18,7 @@ obj-$(CONFIG_SENSORS_ADM1031) += adm1031.o obj-$(CONFIG_SENSORS_ADM9240) += adm9240.o obj-$(CONFIG_SENSORS_ATXP1) += atxp1.o obj-$(CONFIG_SENSORS_DS1621) += ds1621.o +obj-$(CONFIG_SENSORS_F71805F) += f71805f.o obj-$(CONFIG_SENSORS_FSCHER) += fscher.o obj-$(CONFIG_SENSORS_FSCPOS) += fscpos.o obj-$(CONFIG_SENSORS_GL518SM) += gl518sm.o diff --git a/drivers/hwmon/f71805f.c b/drivers/hwmon/f71805f.c new file mode 100644 index 000000000000..e029e0a94ecc --- /dev/null +++ b/drivers/hwmon/f71805f.c @@ -0,0 +1,908 @@ +/* + * f71805f.c - driver for the Fintek F71805F/FG Super-I/O chip integrated + * hardware monitoring features + * Copyright (C) 2005 Jean Delvare <khali@linux-fr.org> + * + * The F71805F/FG is a LPC Super-I/O chip made by Fintek. It integrates + * complete hardware monitoring features: voltage, fan and temperature + * sensors, and manual and automatic fan speed control. + * + * 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 <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 <asm/io.h> + +static struct platform_device *pdev; + +#define DRVNAME "f71805f" + +/* + * Super-I/O constants and functions + */ + +#define F71805F_LD_HWM 0x04 + +#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 +#define SIO_F71805F_ID 0x0406 + +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_select(int base, int ld) +{ + outb(SIO_REG_LDSEL, base); + outb(ld, base + 1); +} + +static inline void +superio_enter(int base) +{ + outb(0x87, base); + outb(0x87, base); +} + +static inline void +superio_exit(int base) +{ + outb(0xaa, base); +} + +/* + * ISA constants + */ + +#define REGION_LENGTH 2 +#define ADDR_REG_OFFSET 0 +#define DATA_REG_OFFSET 1 + +static struct resource f71805f_resource __initdata = { + .flags = IORESOURCE_IO, +}; + +/* + * Registers + */ + +/* in nr from 0 to 8 (8-bit values) */ +#define F71805F_REG_IN(nr) (0x10 + (nr)) +#define F71805F_REG_IN_HIGH(nr) (0x40 + 2 * (nr)) +#define F71805F_REG_IN_LOW(nr) (0x41 + 2 * (nr)) +/* fan nr from 0 to 2 (12-bit values, two registers) */ +#define F71805F_REG_FAN(nr) (0x20 + 2 * (nr)) +#define F71805F_REG_FAN_LOW(nr) (0x28 + 2 * (nr)) +#define F71805F_REG_FAN_CTRL(nr) (0x60 + 16 * (nr)) +/* temp nr from 0 to 2 (8-bit values) */ +#define F71805F_REG_TEMP(nr) (0x1B + (nr)) +#define F71805F_REG_TEMP_HIGH(nr) (0x54 + 2 * (nr)) +#define F71805F_REG_TEMP_HYST(nr) (0x55 + 2 * (nr)) +#define F71805F_REG_TEMP_MODE 0x01 + +#define F71805F_REG_START 0x00 +/* status nr from 0 to 2 */ +#define F71805F_REG_STATUS(nr) (0x36 + (nr)) + +/* + * Data structures and manipulation thereof + */ + +struct f71805f_data { + unsigned short addr; + const char *name; + struct semaphore lock; + struct class_device *class_dev; + + struct semaphore 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 in_high[9]; + u8 in_low[9]; + u16 fan[3]; + u16 fan_low[3]; + u8 fan_enabled; /* Read once at init time */ + u8 temp[3]; + u8 temp_high[3]; + u8 temp_hyst[3]; + u8 temp_mode; + u8 alarms[3]; +}; + +static inline long in_from_reg(u8 reg) +{ + return (reg * 8); +} + +/* The 2 least significant bits are not used */ +static inline u8 in_to_reg(long val) +{ + if (val <= 0) + return 0; + if (val >= 2016) + return 0xfc; + return (((val + 16) / 32) << 2); +} + +/* in0 is downscaled by a factor 2 internally */ +static inline long in0_from_reg(u8 reg) +{ + return (reg * 16); +} + +static inline u8 in0_to_reg(long val) +{ + if (val <= 0) + return 0; + if (val >= 4032) + return 0xfc; + return (((val + 32) / 64) << 2); +} + +/* The 4 most significant bits are not used */ +static inline long fan_from_reg(u16 reg) +{ + reg &= 0xfff; + if (!reg || reg == 0xfff) + return 0; + return (1500000 / reg); +} + +static inline u16 fan_to_reg(long rpm) +{ + /* If the low limit is set below what the chip can measure, + store the largest possible 12-bit value in the registers, + so that no alarm will ever trigger. */ + if (rpm < 367) + return 0xfff; + return (1500000 / rpm); +} + +static inline long temp_from_reg(u8 reg) +{ + return (reg * 1000); +} + +static inline u8 temp_to_reg(long val) +{ + if (val < 0) + val = 0; + else if (val > 1000 * 0xff) + val = 0xff; + return ((val + 500) / 1000); +} + +/* + * Device I/O access + */ + +static u8 f71805f_read8(struct f71805f_data *data, u8 reg) +{ + u8 val; + + down(&data->lock); + outb(reg, data->addr + ADDR_REG_OFFSET); + val = inb(data->addr + DATA_REG_OFFSET); + up(&data->lock); + + return val; +} + +static void f71805f_write8(struct f71805f_data *data, u8 reg, u8 val) +{ + down(&data->lock); + outb(reg, data->addr + ADDR_REG_OFFSET); + outb(val, data->addr + DATA_REG_OFFSET); + up(&data->lock); +} + +/* It is important to read the MSB first, because doing so latches the + value of the LSB, so we are sure both bytes belong to the same value. */ +static u16 f71805f_read16(struct f71805f_data *data, u8 reg) +{ + u16 val; + + down(&data->lock); + 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); + up(&data->lock); + + return val; +} + +static void f71805f_write16(struct f71805f_data *data, u8 reg, u16 val) +{ + down(&data->lock); + outb(reg, data->addr + ADDR_REG_OFFSET); + outb(val >> 8, data->addr + DATA_REG_OFFSET); + outb(++reg, data->addr + ADDR_REG_OFFSET); + outb(val & 0xff, data->addr + DATA_REG_OFFSET); + up(&data->lock); +} + +static struct f71805f_data *f71805f_update_device(struct device *dev) +{ + struct f71805f_data *data = dev_get_drvdata(dev); + int nr; + + down(&data->update_lock); + + /* Limit registers cache is refreshed after 60 seconds */ + if (time_after(jiffies, data->last_updated + 60 * HZ) + || !data->valid) { + for (nr = 0; nr < 9; nr++) { + data->in_high[nr] = f71805f_read8(data, + F71805F_REG_IN_HIGH(nr)); + data->in_low[nr] = f71805f_read8(data, + F71805F_REG_IN_LOW(nr)); + } + for (nr = 0; nr < 3; nr++) { + if (data->fan_enabled & (1 << nr)) + data->fan_low[nr] = f71805f_read16(data, + F71805F_REG_FAN_LOW(nr)); + } + for (nr = 0; nr < 3; nr++) { + data->temp_high[nr] = f71805f_read8(data, + F71805F_REG_TEMP_HIGH(nr)); + data->temp_hyst[nr] = f71805f_read8(data, + F71805F_REG_TEMP_HYST(nr)); + } + data->temp_mode = f71805f_read8(data, F71805F_REG_TEMP_MODE); + + data->last_limits = jiffies; + } + + /* Measurement registers cache is refreshed after 1 second */ + if (time_after(jiffies, data->last_updated + HZ) + || !data->valid) { + for (nr = 0; nr < 9; nr++) { + data->in[nr] = f71805f_read8(data, + F71805F_REG_IN(nr)); + } + for (nr = 0; nr < 3; nr++) { + if (data->fan_enabled & (1 << nr)) + data->fan[nr] = f71805f_read16(data, + F71805F_REG_FAN(nr)); + } + for (nr = 0; nr < 3; nr++) { + data->temp[nr] = f71805f_read8(data, + F71805F_REG_TEMP(nr)); + } + for (nr = 0; nr < 3; nr++) { + data->alarms[nr] = f71805f_read8(data, + F71805F_REG_STATUS(nr)); + } + + data->last_updated = jiffies; + data->valid = 1; + } + + up(&data->update_lock); + + return data; +} + +/* + * Sysfs interface + */ + +static ssize_t show_in0(struct device *dev, struct device_attribute *devattr, + char *buf) +{ + struct f71805f_data *data = f71805f_update_device(dev); + + return sprintf(buf, "%ld\n", in0_from_reg(data->in[0])); +} + +static ssize_t show_in0_max(struct device *dev, struct device_attribute + *devattr, char *buf) +{ + struct f71805f_data *data = f71805f_update_device(dev); + + return sprintf(buf, "%ld\n", in0_from_reg(data->in_high[0])); +} + +static ssize_t show_in0_min(struct device *dev, struct device_attribute + *devattr, char *buf) +{ + struct f71805f_data *data = f71805f_update_device(dev); + + return sprintf(buf, "%ld\n", in0_from_reg(data->in_low[0])); +} + +static ssize_t set_in0_max(struct device *dev, struct device_attribute + *devattr, const char *buf, size_t count) +{ + struct f71805f_data *data = dev_get_drvdata(dev); + long val = simple_strtol(buf, NULL, 10); + + down(&data->update_lock); + data->in_high[0] = in0_to_reg(val); + f71805f_write8(data, F71805F_REG_IN_HIGH(0), data->in_high[0]); + up(&data->update_lock); + + return count; +} + +static ssize_t set_in0_min(struct device *dev, struct device_attribute + *devattr, const char *buf, size_t count) +{ + struct f71805f_data *data = dev_get_drvdata(dev); + long val = simple_strtol(buf, NULL, 10); + + down(&data->update_lock); + data->in_low[0] = in0_to_reg(val); + f71805f_write8(data, F71805F_REG_IN_LOW(0), data->in_low[0]); + up(&data->update_lock); + + return count; +} + +static DEVICE_ATTR(in0_input, S_IRUGO, show_in0, NULL); +static DEVICE_ATTR(in0_max, S_IRUGO| S_IWUSR, show_in0_max, set_in0_max); +static DEVICE_ATTR(in0_min, S_IRUGO| S_IWUSR, show_in0_min, set_in0_min); + +static ssize_t show_in(struct device *dev, struct device_attribute *devattr, + char *buf) +{ + struct f71805f_data *data = f71805f_update_device(dev); + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + int nr = attr->index; + + return sprintf(buf, "%ld\n", in_from_reg(data->in[nr])); +} + +static ssize_t show_in_max(struct device *dev, struct device_attribute + *devattr, char *buf) +{ + struct f71805f_data *data = f71805f_update_device(dev); + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + int nr = attr->index; + + return sprintf(buf, "%ld\n", in_from_reg(data->in_high[nr])); +} + +static ssize_t show_in_min(struct device *dev, struct device_attribute + *devattr, char *buf) +{ + struct f71805f_data *data = f71805f_update_device(dev); + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + int nr = attr->index; + + return sprintf(buf, "%ld\n", in_from_reg(data->in_low[nr])); +} + +static ssize_t set_in_max(struct device *dev, struct device_attribute + *devattr, const char *buf, size_t count) +{ + struct f71805f_data *data = dev_get_drvdata(dev); + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + int nr = attr->index; + long val = simple_strtol(buf, NULL, 10); + + down(&data->update_lock); + data->in_high[nr] = in_to_reg(val); + f71805f_write8(data, F71805F_REG_IN_HIGH(nr), data->in_high[nr]); + up(&data->update_lock); + + return count; +} + +static ssize_t set_in_min(struct device *dev, struct device_attribute + *devattr, const char *buf, size_t count) +{ + struct f71805f_data *data = dev_get_drvdata(dev); + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + int nr = attr->index; + long val = simple_strtol(buf, NULL, 10); + + down(&data->update_lock); + data->in_low[nr] = in_to_reg(val); + f71805f_write8(data, F71805F_REG_IN_LOW(nr), data->in_low[nr]); + up(&data->update_lock); + + return count; +} + +#define sysfs_in(offset) \ +static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, \ + show_in, NULL, offset); \ +static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \ + show_in_max, set_in_max, offset); \ +static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \ + show_in_min, set_in_min, offset) + +sysfs_in(1); +sysfs_in(2); +sysfs_in(3); +sysfs_in(4); +sysfs_in(5); +sysfs_in(6); +sysfs_in(7); +sysfs_in(8); + +static ssize_t show_fan(struct device *dev, struct device_attribute *devattr, + char *buf) +{ + struct f71805f_data *data = f71805f_update_device(dev); + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + int nr = attr->index; + + return sprintf(buf, "%ld\n", fan_from_reg(data->fan[nr])); +} + +static ssize_t show_fan_min(struct device *dev, struct device_attribute + *devattr, char *buf) +{ + struct f71805f_data *data = f71805f_update_device(dev); + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + int nr = attr->index; + + return sprintf(buf, "%ld\n", fan_from_reg(data->fan_low[nr])); +} + +static ssize_t set_fan_min(struct device *dev, struct device_attribute + *devattr, const char *buf, size_t count) +{ + struct f71805f_data *data = dev_get_drvdata(dev); + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + int nr = attr->index; + long val = simple_strtol(buf, NULL, 10); + + down(&data->update_lock); + data->fan_low[nr] = fan_to_reg(val); + f71805f_write16(data, F71805F_REG_FAN_LOW(nr), data->fan_low[nr]); + up(&data->update_lock); + + return count; +} + +#define sysfs_fan(offset) \ +static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, \ + show_fan, NULL, offset - 1); \ +static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \ + show_fan_min, set_fan_min, offset - 1) + +sysfs_fan(1); +sysfs_fan(2); +sysfs_fan(3); + +static ssize_t show_temp(struct device *dev, struct device_attribute *devattr, + char *buf) +{ + struct f71805f_data *data = f71805f_update_device(dev); + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + int nr = attr->index; + + return sprintf(buf, "%ld\n", temp_from_reg(data->temp[nr])); +} + +static ssize_t show_temp_max(struct device *dev, struct device_attribute + *devattr, char *buf) +{ + struct f71805f_data *data = f71805f_update_device(dev); + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + int nr = attr->index; + + return sprintf(buf, "%ld\n", temp_from_reg(data->temp_high[nr])); +} + +static ssize_t show_temp_hyst(struct device *dev, struct device_attribute + *devattr, char *buf) +{ + struct f71805f_data *data = f71805f_update_device(dev); + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + int nr = attr->index; + + return sprintf(buf, "%ld\n", temp_from_reg(data->temp_hyst[nr])); +} + +static ssize_t show_temp_type(struct device *dev, struct device_attribute + *devattr, char *buf) +{ + struct f71805f_data *data = f71805f_update_device(dev); + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + int nr = attr->index; + + /* 3 is diode, 4 is thermistor */ + return sprintf(buf, "%u\n", (data->temp_mode & (1 << nr)) ? 3 : 4); +} + +static ssize_t set_temp_max(struct device *dev, struct device_attribute + *devattr, const char *buf, size_t count) +{ + struct f71805f_data *data = dev_get_drvdata(dev); + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + int nr = attr->index; + long val = simple_strtol(buf, NULL, 10); + + down(&data->update_lock); + data->temp_high[nr] = temp_to_reg(val); + f71805f_write8(data, F71805F_REG_TEMP_HIGH(nr), data->temp_high[nr]); + up(&data->update_lock); + + return count; +} + +static ssize_t set_temp_hyst(struct device *dev, struct device_attribute + *devattr, const char *buf, size_t count) +{ + struct f71805f_data *data = dev_get_drvdata(dev); + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + int nr = attr->index; + long val = simple_strtol(buf, NULL, 10); + + down(&data->update_lock); + data->temp_hyst[nr] = temp_to_reg(val); + f71805f_write8(data, F71805F_REG_TEMP_HYST(nr), data->temp_hyst[nr]); + up(&data->update_lock); + + return count; +} + +#define sysfs_temp(offset) \ +static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, \ + show_temp, NULL, offset - 1); \ +static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \ + show_temp_max, set_temp_max, offset - 1); \ +static SENSOR_DEVICE_ATTR(temp##offset##_max_hyst, S_IRUGO | S_IWUSR, \ + show_temp_hyst, set_temp_hyst, offset - 1); \ +static SENSOR_DEVICE_ATTR(temp##offset##_type, S_IRUGO, \ + show_temp_type, NULL, offset - 1) + +sysfs_temp(1); +sysfs_temp(2); +sysfs_temp(3); + +static ssize_t show_alarms_in(struct device *dev, struct device_attribute + *devattr, char *buf) +{ + struct f71805f_data *data = f71805f_update_device(dev); + + return sprintf(buf, "%d\n", data->alarms[0] | + ((data->alarms[1] & 0x01) << 8)); +} + +static ssize_t show_alarms_fan(struct device *dev, struct device_attribute + *devattr, char *buf) +{ + struct f71805f_data *data = f71805f_update_device(dev); + + return sprintf(buf, "%d\n", data->alarms[2] & 0x07); +} + +static ssize_t show_alarms_temp(struct device *dev, struct device_attribute + *devattr, char *buf) +{ + struct f71805f_data *data = f71805f_update_device(dev); + + return sprintf(buf, "%d\n", (data->alarms[1] >> 3) & 0x07); +} + +static DEVICE_ATTR(alarms_in, S_IRUGO, show_alarms_in, NULL); +static DEVICE_ATTR(alarms_fan, S_IRUGO, show_alarms_fan, NULL); +static DEVICE_ATTR(alarms_temp, S_IRUGO, show_alarms_temp, NULL); + +static ssize_t show_name(struct device *dev, struct device_attribute + *devattr, char *buf) +{ + struct f71805f_data *data = dev_get_drvdata(dev); + + return sprintf(buf, "%s\n", data->name); +} + +static DEVICE_ATTR(name, S_IRUGO, show_name, NULL); + +/* + * Device registration and initialization + */ + +static void __devinit f71805f_init_device(struct f71805f_data *data) +{ + u8 reg; + int i; + + reg = f71805f_read8(data, F71805F_REG_START); + if ((reg & 0x41) != 0x01) { + printk(KERN_DEBUG DRVNAME ": Starting monitoring " + "operations\n"); + f71805f_write8(data, F71805F_REG_START, (reg | 0x01) & ~0x40); + } + + /* Fan monitoring can be disabled. If it is, we won't be polling + the register values, and won't create the related sysfs files. */ + for (i = 0; i < 3; i++) { + reg = f71805f_read8(data, F71805F_REG_FAN_CTRL(i)); + if (!(reg & 0x80)) + data->fan_enabled |= (1 << i); + } +} + +static int __devinit f71805f_probe(struct platform_device *pdev) +{ + struct f71805f_data *data; + struct resource *res; + int err; + + if (!(data = kzalloc(sizeof(struct f71805f_data), GFP_KERNEL))) { + err = -ENOMEM; + printk(KERN_ERR DRVNAME ": Out of memory\n"); + goto exit; + } + + res = platform_get_resource(pdev, IORESOURCE_IO, 0); + data->addr = res->start; + init_MUTEX(&data->lock); + data->name = "f71805f"; + init_MUTEX(&data->update_lock); + + platform_set_drvdata(pdev, data); + + data->class_dev = hwmon_device_register(&pdev->dev); + if (IS_ERR(data->class_dev)) { + err = PTR_ERR(data->class_dev); + dev_err(&pdev->dev, "Class registration failed (%d)\n", err); + goto exit_free; + } + + /* Initialize the F71805F chip */ + f71805f_init_device(data); + + /* Register sysfs interface files */ + device_create_file(&pdev->dev, &dev_attr_in0_input); + device_create_file(&pdev->dev, &dev_attr_in0_max); + device_create_file(&pdev->dev, &dev_attr_in0_min); + device_create_file(&pdev->dev, &sensor_dev_attr_in1_input.dev_attr); + device_create_file(&pdev->dev, &sensor_dev_attr_in2_input.dev_attr); + device_create_file(&pdev->dev, &sensor_dev_attr_in3_input.dev_attr); + device_create_file(&pdev->dev, &sensor_dev_attr_in4_input.dev_attr); + device_create_file(&pdev->dev, &sensor_dev_attr_in5_input.dev_attr); + device_create_file(&pdev->dev, &sensor_dev_attr_in6_input.dev_attr); + device_create_file(&pdev->dev, &sensor_dev_attr_in7_input.dev_attr); + device_create_file(&pdev->dev, &sensor_dev_attr_in8_input.dev_attr); + device_create_file(&pdev->dev, &sensor_dev_attr_in1_max.dev_attr); + device_create_file(&pdev->dev, &sensor_dev_attr_in2_max.dev_attr); + device_create_file(&pdev->dev, &sensor_dev_attr_in3_max.dev_attr); + device_create_file(&pdev->dev, &sensor_dev_attr_in4_max.dev_attr); + device_create_file(&pdev->dev, &sensor_dev_attr_in5_max.dev_attr); + device_create_file(&pdev->dev, &sensor_dev_attr_in6_max.dev_attr); + device_create_file(&pdev->dev, &sensor_dev_attr_in7_max.dev_attr); + device_create_file(&pdev->dev, &sensor_dev_attr_in8_max.dev_attr); + device_create_file(&pdev->dev, &sensor_dev_attr_in1_min.dev_attr); + device_create_file(&pdev->dev, &sensor_dev_attr_in2_min.dev_attr); + device_create_file(&pdev->dev, &sensor_dev_attr_in3_min.dev_attr); + device_create_file(&pdev->dev, &sensor_dev_attr_in4_min.dev_attr); + device_create_file(&pdev->dev, &sensor_dev_attr_in5_min.dev_attr); + device_create_file(&pdev->dev, &sensor_dev_attr_in6_min.dev_attr); + device_create_file(&pdev->dev, &sensor_dev_attr_in7_min.dev_attr); + device_create_file(&pdev->dev, &sensor_dev_attr_in8_min.dev_attr); + if (data->fan_enabled & (1 << 0)) { + device_create_file(&pdev->dev, + &sensor_dev_attr_fan1_input.dev_attr); + device_create_file(&pdev->dev, + &sensor_dev_attr_fan1_min.dev_attr); + } + if (data->fan_enabled & (1 << 1)) { + device_create_file(&pdev->dev, + &sensor_dev_attr_fan2_input.dev_attr); + device_create_file(&pdev->dev, + &sensor_dev_attr_fan2_min.dev_attr); + } + if (data->fan_enabled & (1 << 2)) { + device_create_file(&pdev->dev, + &sensor_dev_attr_fan3_input.dev_attr); + device_create_file(&pdev->dev, + &sensor_dev_attr_fan3_min.dev_attr); + } + device_create_file(&pdev->dev, + &sensor_dev_attr_temp1_input.dev_attr); + device_create_file(&pdev->dev, + &sensor_dev_attr_temp2_input.dev_attr); + device_create_file(&pdev->dev, + &sensor_dev_attr_temp3_input.dev_attr); + device_create_file(&pdev->dev, &sensor_dev_attr_temp1_max.dev_attr); + device_create_file(&pdev->dev, &sensor_dev_attr_temp2_max.dev_attr); + device_create_file(&pdev->dev, &sensor_dev_attr_temp3_max.dev_attr); + device_create_file(&pdev->dev, + &sensor_dev_attr_temp1_max_hyst.dev_attr); + device_create_file(&pdev->dev, + &sensor_dev_attr_temp2_max_hyst.dev_attr); + device_create_file(&pdev->dev, + &sensor_dev_attr_temp3_max_hyst.dev_attr); + device_create_file(&pdev->dev, &sensor_dev_attr_temp1_type.dev_attr); + device_create_file(&pdev->dev, &sensor_dev_attr_temp2_type.dev_attr); + device_create_file(&pdev->dev, &sensor_dev_attr_temp3_type.dev_attr); + device_create_file(&pdev->dev, &dev_attr_alarms_in); + device_create_file(&pdev->dev, &dev_attr_alarms_fan); + device_create_file(&pdev->dev, &dev_attr_alarms_temp); + device_create_file(&pdev->dev, &dev_attr_name); + + return 0; + +exit_free: + kfree(data); +exit: + return err; +} + +static int __devexit f71805f_remove(struct platform_device *pdev) +{ + struct f71805f_data *data = platform_get_drvdata(pdev); + + platform_set_drvdata(pdev, NULL); + hwmon_device_unregister(data->class_dev); + kfree(data); + + return 0; +} + +static struct platform_driver f71805f_driver = { + .driver = { + .owner = THIS_MODULE, + .name = DRVNAME, + }, + .probe = f71805f_probe, + .remove = __devexit_p(f71805f_remove), +}; + +static int __init f71805f_device_add(unsigned short address) +{ + int err; + + pdev = platform_device_alloc(DRVNAME, address); + if (!pdev) { + err = -ENOMEM; + printk(KERN_ERR DRVNAME ": Device allocation failed\n"); + goto exit; + } + + f71805f_resource.start = address; + f71805f_resource.end = address + REGION_LENGTH - 1; + f71805f_resource.name = pdev->name; + err = platform_device_add_resources(pdev, &f71805f_resource, 1); + if (err) { + printk(KERN_ERR DRVNAME ": Device resource addition failed " + "(%d)\n", err); + 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 f71805f_find(int sioaddr, unsigned short *address) +{ + int err = -ENODEV; + u16 devid; + + superio_enter(sioaddr); + + devid = superio_inw(sioaddr, SIO_REG_MANID); + if (devid != SIO_FINTEK_ID) + goto exit; + + devid = superio_inw(sioaddr, SIO_REG_DEVID); + if (devid != SIO_F71805F_ID) { + printk(KERN_INFO DRVNAME ": Unsupported Fintek device, " + "skipping\n"); + goto exit; + } + + superio_select(sioaddr, F71805F_LD_HWM); + if (!(superio_inb(sioaddr, SIO_REG_ENABLE) & 0x01)) { + printk(KERN_WARNING DRVNAME ": Device not activated, " + "skipping\n"); + goto exit; + } + + *address = superio_inw(sioaddr, SIO_REG_ADDR); + if (*address == 0) { + printk(KERN_WARNING DRVNAME ": Base address not set, " + "skipping\n"); + goto exit; + } + + err = 0; + printk(KERN_INFO DRVNAME ": Found F71805F chip at %#x, revision %u\n", + *address, superio_inb(sioaddr, SIO_REG_DEVREV)); + +exit: + superio_exit(sioaddr); + return err; +} + +static int __init f71805f_init(void) +{ + int err; + unsigned short address; + + if (f71805f_find(0x2e, &address) + && f71805f_find(0x4e, &address)) + return -ENODEV; + + err = platform_driver_register(&f71805f_driver); + if (err) + goto exit; + + /* Sets global pdev as a side effect */ + err = f71805f_device_add(address); + if (err) + goto exit_driver; + + return 0; + +exit_driver: + platform_driver_unregister(&f71805f_driver); +exit: + return err; +} + +static void __exit f71805f_exit(void) +{ + platform_device_unregister(pdev); + platform_driver_unregister(&f71805f_driver); +} + +MODULE_AUTHOR("Jean Delvare <khali@linux-fr>"); +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("F71805F hardware monitoring driver"); + +module_init(f71805f_init); +module_exit(f71805f_exit); |