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 <chrisg@0-in.com>
- Copyright (C) 2005-2006 Jean Delvare <khali@linux-fr.org>
+ Copyright (C) 2001 Chris Gauthron
+ Copyright (C) 2005-2007 Jean Delvare <khali@linux-fr.org>
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
#include <linux/err.h>
#include <linux/mutex.h>
#include <linux/sysfs.h>
-#include <asm/io.h>
+#include <linux/string.h>
+#include <linux/dmi.h>
+#include <linux/acpi.h>
+#include <linux/io.h>
#define DRVNAME "it87"
-enum chips { it87, it8712, it8716, it8718 };
+enum chips { it87, it8712, it8716, it8718, it8720 };
+
+static unsigned short force_id;
+module_param(force_id, ushort, 0);
+MODULE_PARM_DESC(force_id, "Override the detected device ID");
static struct platform_device *pdev;
#define 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 */
-#define GPIO 0x07 /* The device with the IT8718F VID value 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 */
#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 */
/* 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 -----*/
#define IT87_REG_ALARM2 0x02
#define IT87_REG_ALARM3 0x03
-/* The IT8718F has the VID value in a different register, in Super-I/O
- configuration space. */
+/* 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))
#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)
struct it87_sio_data {
enum chips type;
/* Values read from Super-I/O config space */
+ u8 revision;
u8 vid_value;
+ /* 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.
struct it87_data {
struct device *hwmon_dev;
enum chips type;
+ u8 revision;
unsigned short addr;
const char *name;
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 manual_pwm_ctl[3]; /* manual PWM value set by user */
};
+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 int it87_probe(struct platform_device *pdev);
static int __devexit it87_remove(struct platform_device *pdev);
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,
data->sensor &= ~(1 << nr);
data->sensor &= ~(8 << nr);
- /* 3 = thermal diode; 2 = thermistor; 0 = disabled */
+ 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)
+ else if (val == 4)
data->sensor |= 8 << nr;
else if (val != 0) {
mutex_unlock(&data->update_lock);
}
data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr]));
- it87_write_value(data, 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;
}
/* Restore fan min limit */
data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr]));
- it87_write_value(data, 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;
mutex_lock(&data->update_lock);
data->fan_min[nr] = FAN16_TO_REG(val);
- it87_write_value(data, IT87_REG_FAN_MIN(nr),
+ it87_write_value(data, IT87_REG_FAN_MIN[nr],
data->fan_min[nr] & 0xff);
- it87_write_value(data, 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;
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 DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
+static ssize_t show_alarm(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ int bitnr = to_sensor_dev_attr(attr)->index;
+ struct it87_data *data = it87_update_device(dev);
+ return sprintf(buf, "%u\n", (data->alarms >> bitnr) & 1);
+}
+static 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_vrm_reg(struct device *dev, struct device_attribute *attr, char *buf)
{
- struct it87_data *data = it87_update_device(dev);
+ struct it87_data *data = dev_get_drvdata(dev);
return sprintf(buf, "%u\n", data->vrm);
}
static ssize_t
&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_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,
&sensor_dev_attr_fan2_min16.dev_attr.attr,
&sensor_dev_attr_fan3_input16.dev_attr.attr,
&sensor_dev_attr_fan3_min16.dev_attr.attr,
+ &sensor_dev_attr_fan4_input16.dev_attr.attr,
+ &sensor_dev_attr_fan4_min16.dev_attr.attr,
+ &sensor_dev_attr_fan5_input16.dev_attr.attr,
+ &sensor_dev_attr_fan5_min16.dev_attr.attr,
&sensor_dev_attr_fan1_input.dev_attr.attr,
&sensor_dev_attr_fan1_min.dev_attr.attr,
&sensor_dev_attr_fan3_min.dev_attr.attr,
&sensor_dev_attr_fan3_div.dev_attr.attr,
+ &sensor_dev_attr_fan1_alarm.dev_attr.attr,
+ &sensor_dev_attr_fan2_alarm.dev_attr.attr,
+ &sensor_dev_attr_fan3_alarm.dev_attr.attr,
+ &sensor_dev_attr_fan4_alarm.dev_attr.attr,
+ &sensor_dev_attr_fan5_alarm.dev_attr.attr,
+
&sensor_dev_attr_pwm1_enable.dev_attr.attr,
&sensor_dev_attr_pwm2_enable.dev_attr.attr,
&sensor_dev_attr_pwm3_enable.dev_attr.attr,
&sensor_dev_attr_pwm1.dev_attr.attr,
&sensor_dev_attr_pwm2.dev_attr.attr,
&sensor_dev_attr_pwm3.dev_attr.attr,
+ &dev_attr_pwm1_freq.attr,
+ &dev_attr_pwm2_freq.attr,
+ &dev_attr_pwm3_freq.attr,
&dev_attr_vrm.attr,
&dev_attr_cpu0_vid.attr,
{
int err = -ENODEV;
u16 chip_type;
+ const char *board_vendor, *board_name;
superio_enter();
- chip_type = superio_inw(DEVID);
+ chip_type = force_id ? force_id : superio_inw(DEVID);
switch (chip_type) {
case IT8705F_DEVID:
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:
}
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 (chip_type != IT8705F_DEVID) {
+ if (sio_data->type == it87) {
+ /* The IT8705F doesn't have VID pins at all */
+ sio_data->skip_vid = 1;
+ } else {
int reg;
superio_select(GPIO);
- if (chip_type == it8718)
+ /* 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);
pr_info("it87: in7 is VCCH (+5V Stand-By)\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;
"it8712",
"it8716",
"it8718",
+ "it8720",
};
res = platform_get_resource(pdev, IORESOURCE_IO, 0);
- if (!request_region(res->start, IT87_EXTENT, DRVNAME)) {
+ 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_EXTENT - 1));
+ (unsigned long)(res->start + IT87_EC_EXTENT - 1));
err = -EBUSY;
goto ERROR0;
}
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. */
goto ERROR2;
/* Do not create fan files for disabled fans */
- if (data->type == it8716 || data->type == it8718) {
+ if (has_16bit_fans(data)) {
/* 16-bit tachometers */
if (data->has_fan & (1 << 0)) {
if ((err = device_create_file(dev,
&sensor_dev_attr_fan1_input16.dev_attr))
|| (err = device_create_file(dev,
- &sensor_dev_attr_fan1_min16.dev_attr)))
+ &sensor_dev_attr_fan1_min16.dev_attr))
+ || (err = device_create_file(dev,
+ &sensor_dev_attr_fan1_alarm.dev_attr)))
goto ERROR4;
}
if (data->has_fan & (1 << 1)) {
if ((err = device_create_file(dev,
&sensor_dev_attr_fan2_input16.dev_attr))
|| (err = device_create_file(dev,
- &sensor_dev_attr_fan2_min16.dev_attr)))
+ &sensor_dev_attr_fan2_min16.dev_attr))
+ || (err = device_create_file(dev,
+ &sensor_dev_attr_fan2_alarm.dev_attr)))
goto ERROR4;
}
if (data->has_fan & (1 << 2)) {
if ((err = device_create_file(dev,
&sensor_dev_attr_fan3_input16.dev_attr))
|| (err = device_create_file(dev,
- &sensor_dev_attr_fan3_min16.dev_attr)))
+ &sensor_dev_attr_fan3_min16.dev_attr))
+ || (err = device_create_file(dev,
+ &sensor_dev_attr_fan3_alarm.dev_attr)))
+ goto ERROR4;
+ }
+ if (data->has_fan & (1 << 3)) {
+ if ((err = device_create_file(dev,
+ &sensor_dev_attr_fan4_input16.dev_attr))
+ || (err = device_create_file(dev,
+ &sensor_dev_attr_fan4_min16.dev_attr))
+ || (err = device_create_file(dev,
+ &sensor_dev_attr_fan4_alarm.dev_attr)))
+ goto ERROR4;
+ }
+ if (data->has_fan & (1 << 4)) {
+ if ((err = device_create_file(dev,
+ &sensor_dev_attr_fan5_input16.dev_attr))
+ || (err = device_create_file(dev,
+ &sensor_dev_attr_fan5_min16.dev_attr))
+ || (err = device_create_file(dev,
+ &sensor_dev_attr_fan5_alarm.dev_attr)))
goto ERROR4;
}
} else {
|| (err = device_create_file(dev,
&sensor_dev_attr_fan1_min.dev_attr))
|| (err = device_create_file(dev,
- &sensor_dev_attr_fan1_div.dev_attr)))
+ &sensor_dev_attr_fan1_div.dev_attr))
+ || (err = device_create_file(dev,
+ &sensor_dev_attr_fan1_alarm.dev_attr)))
goto ERROR4;
}
if (data->has_fan & (1 << 1)) {
|| (err = device_create_file(dev,
&sensor_dev_attr_fan2_min.dev_attr))
|| (err = device_create_file(dev,
- &sensor_dev_attr_fan2_div.dev_attr)))
+ &sensor_dev_attr_fan2_div.dev_attr))
+ || (err = device_create_file(dev,
+ &sensor_dev_attr_fan2_alarm.dev_attr)))
goto ERROR4;
}
if (data->has_fan & (1 << 2)) {
|| (err = device_create_file(dev,
&sensor_dev_attr_fan3_min.dev_attr))
|| (err = device_create_file(dev,
- &sensor_dev_attr_fan3_div.dev_attr)))
+ &sensor_dev_attr_fan3_div.dev_attr))
+ || (err = device_create_file(dev,
+ &sensor_dev_attr_fan3_alarm.dev_attr)))
goto ERROR4;
}
}
if (enable_pwm_interface) {
- if ((err = device_create_file(dev,
- &sensor_dev_attr_pwm1_enable.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_pwm2_enable.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_pwm3_enable.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_pwm1.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_pwm2.dev_attr))
- || (err = device_create_file(dev,
- &sensor_dev_attr_pwm3.dev_attr))
- || (err = device_create_file(dev,
- &dev_attr_pwm1_freq))
- || (err = device_create_file(dev,
- &dev_attr_pwm2_freq))
- || (err = device_create_file(dev,
- &dev_attr_pwm3_freq)))
- goto ERROR4;
+ if (!(sio_data->skip_pwm & (1 << 0))) {
+ if ((err = device_create_file(dev,
+ &sensor_dev_attr_pwm1_enable.dev_attr))
+ || (err = device_create_file(dev,
+ &sensor_dev_attr_pwm1.dev_attr))
+ || (err = device_create_file(dev,
+ &dev_attr_pwm1_freq)))
+ goto ERROR4;
+ }
+ if (!(sio_data->skip_pwm & (1 << 1))) {
+ if ((err = device_create_file(dev,
+ &sensor_dev_attr_pwm2_enable.dev_attr))
+ || (err = device_create_file(dev,
+ &sensor_dev_attr_pwm2.dev_attr))
+ || (err = device_create_file(dev,
+ &dev_attr_pwm2_freq)))
+ goto ERROR4;
+ }
+ if (!(sio_data->skip_pwm & (1 << 2))) {
+ if ((err = device_create_file(dev,
+ &sensor_dev_attr_pwm3_enable.dev_attr))
+ || (err = device_create_file(dev,
+ &sensor_dev_attr_pwm3.dev_attr))
+ || (err = device_create_file(dev,
+ &dev_attr_pwm3_freq)))
+ goto ERROR4;
+ }
}
- if (data->type == it8712 || data->type == it8716
- || data->type == it8718) {
+ if (!sio_data->skip_vid) {
data->vrm = vid_which_vrm();
/* VID reading from Super-I/O config space if available */
data->vid = sio_data->vid_value;
platform_set_drvdata(pdev, NULL);
kfree(data);
ERROR1:
- release_region(res->start, IT87_EXTENT);
+ release_region(res->start, IT87_EC_EXTENT);
ERROR0:
return err;
}
sysfs_remove_group(&pdev->dev.kobj, &it87_group);
sysfs_remove_group(&pdev->dev.kobj, &it87_group_opt);
- release_region(data->addr, IT87_EXTENT);
+ release_region(data->addr, IT87_EC_EXTENT);
platform_set_drvdata(pdev, NULL);
kfree(data);
/* Called when we have found a new IT87. */
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;
+ u8 mask;
/* initialize to sane defaults:
* - if the chip is in manual pwm mode, this will be overwritten with
it87_write_value(data, IT87_REG_TEMP_HIGH(i), 127);
}
- /* Check if temperature channnels are reset manually or by some reason */
+ /* Check if temperature channels are reset manually or by some reason */
tmp = it87_read_value(data, IT87_REG_TEMP_ENABLE);
if ((tmp & 0x3f) == 0) {
/* Temp1,Temp3=thermistor; Temp2=thermal diode */
}
/* Check if tachometers are reset manually or by some reason */
+ mask = 0x70 & ~(sio_data->skip_fan << 4);
data->fan_main_ctrl = it87_read_value(data, IT87_REG_FAN_MAIN_CTRL);
- if ((data->fan_main_ctrl & 0x70) == 0) {
+ if ((data->fan_main_ctrl & mask) == 0) {
/* Enable all fan tachometers */
- data->fan_main_ctrl |= 0x70;
+ 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 || data->type == it8718) {
+ if (has_16bit_fans(data)) {
tmp = it87_read_value(data, IT87_REG_FAN_16BIT);
if (~tmp & 0x07 & data->has_fan) {
dev_dbg(&pdev->dev,
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 */
+ }
}
+ /* Fan input pins may be used for alternative functions */
+ data->has_fan &= ~sio_data->skip_fan;
+
/* Set current fan mode registers and the default settings for the
* other mode registers */
for (i = 0; i < 3; i++) {
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(data, IT87_REG_FAN_MIN(i));
+ it87_read_value(data, IT87_REG_FAN_MIN[i]);
data->fan[i] = it87_read_value(data,
- IT87_REG_FAN(i));
+ IT87_REG_FAN[i]);
/* Add high byte if in 16-bit mode */
- if (data->type == it8716 || data->type == it8718) {
+ if (has_16bit_fans(data)) {
data->fan[i] |= it87_read_value(data,
- IT87_REG_FANX(i)) << 8;
+ IT87_REG_FANX[i]) << 8;
data->fan_min[i] |= it87_read_value(data,
- IT87_REG_FANX_MIN(i)) << 8;
+ IT87_REG_FANX_MIN[i]) << 8;
}
}
for (i = 0; i < 3; i++) {
}
/* Newer chips don't have clock dividers */
- if ((data->has_fan & 0x07) && data->type != it8716
- && data->type != it8718) {
+ 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_ctl = it87_read_value(data, IT87_REG_FAN_CTL);
data->sensor = it87_read_value(data, IT87_REG_TEMP_ENABLE);
- /* The 8705 does not have VID capability */
+ /* 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(data, IT87_REG_VID);
/* The older IT8712F revisions had only 5 VID pins,
const struct it87_sio_data *sio_data)
{
struct resource res = {
- .start = address ,
- .end = address + IT87_EXTENT - 1,
+ .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;
unsigned short isa_address=0;
struct it87_sio_data sio_data;
+ memset(&sio_data, 0, sizeof(struct it87_sio_data));
err = it87_find(&isa_address, &sio_data);
if (err)
return err;
}
-MODULE_AUTHOR("Chris Gauthron <chrisg@0-in.com>, "
+MODULE_AUTHOR("Chris Gauthron, "
"Jean Delvare <khali@linux-fr.org>");
-MODULE_DESCRIPTION("IT8705F/8712F/8716F/8718F/8726F, SiS950 driver");
+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);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff