#include <linux/platform_device.h>
#include <linux/hwmon.h>
#include <linux/hwmon-sysfs.h>
+#include <linux/hwmon-vid.h>
#include <linux/err.h>
#include <linux/mutex.h>
+#include <linux/acpi.h>
#include <asm/io.h>
#include "lm75.h"
"w83627dhg",
};
+static unsigned short force_id;
+module_param(force_id, ushort, 0);
+MODULE_PARM_DESC(force_id, "Override the detected device ID");
+
#define DRVNAME "w83627ehf"
/*
#define SIO_REG_LDSEL 0x07 /* Logical device select */
#define SIO_REG_DEVID 0x20 /* Device ID (2 bytes) */
+#define SIO_REG_EN_VRM10 0x2C /* GPIO3, GPIO4 selection */
#define SIO_REG_ENABLE 0x30 /* Logical device enable */
#define SIO_REG_ADDR 0x60 /* Logical device address (2 bytes) */
+#define SIO_REG_VID_CTRL 0xF0 /* VID control */
+#define SIO_REG_VID_DATA 0xF1 /* VID data */
#define SIO_W83627EHF_ID 0x8850
#define SIO_W83627EHG_ID 0x8860
}
static inline s8
-temp1_to_reg(int temp, int min, int max)
+temp1_to_reg(long temp, int min, int max)
{
if (temp <= min)
return min / 1000;
int addr; /* IO base of hw monitor block */
const char *name;
- struct class_device *class_dev;
+ struct device *hwmon_dev;
struct mutex lock;
struct mutex update_lock;
u8 fan_min[5];
u8 fan_div[5];
u8 has_fan; /* some fan inputs can be disabled */
+ u8 temp_type[3];
s8 temp1;
s8 temp1_max;
s8 temp1_max_hyst;
u8 fan_min_output[4]; /* minimum fan speed */
u8 fan_stop_time[4];
+
+ u8 vid;
+ u8 vrm;
};
struct w83627ehf_sio_data {
|| (reg & 0x00ff) == 0x55));
}
-/* We assume that the default bank is 0, thus the following two functions do
- nothing for registers which live in bank 0. For others, they respectively
- set the bank register to the correct value (before the register is
- accessed), and back to 0 (afterwards). */
+/* Registers 0x50-0x5f are banked */
static inline void w83627ehf_set_bank(struct w83627ehf_data *data, u16 reg)
{
- if (reg & 0xff00) {
+ if ((reg & 0x00f0) == 0x50) {
outb_p(W83627EHF_REG_BANK, data->addr + ADDR_REG_OFFSET);
outb_p(reg >> 8, data->addr + DATA_REG_OFFSET);
}
}
+/* Not strictly necessary, but play it safe for now */
static inline void w83627ehf_reset_bank(struct w83627ehf_data *data, u16 reg)
{
if (reg & 0xff00) {
}
}
+static void w83627ehf_update_fan_div(struct w83627ehf_data *data)
+{
+ int i;
+
+ i = w83627ehf_read_value(data, W83627EHF_REG_FANDIV1);
+ data->fan_div[0] = (i >> 4) & 0x03;
+ data->fan_div[1] = (i >> 6) & 0x03;
+ i = w83627ehf_read_value(data, W83627EHF_REG_FANDIV2);
+ data->fan_div[2] = (i >> 6) & 0x03;
+ i = w83627ehf_read_value(data, W83627EHF_REG_VBAT);
+ data->fan_div[0] |= (i >> 3) & 0x04;
+ data->fan_div[1] |= (i >> 4) & 0x04;
+ data->fan_div[2] |= (i >> 5) & 0x04;
+ if (data->has_fan & ((1 << 3) | (1 << 4))) {
+ i = w83627ehf_read_value(data, W83627EHF_REG_DIODE);
+ data->fan_div[3] = i & 0x03;
+ data->fan_div[4] = ((i >> 2) & 0x03)
+ | ((i >> 5) & 0x04);
+ }
+ if (data->has_fan & (1 << 3)) {
+ i = w83627ehf_read_value(data, W83627EHF_REG_SMI_OVT);
+ data->fan_div[3] |= (i >> 5) & 0x04;
+ }
+}
+
static struct w83627ehf_data *w83627ehf_update_device(struct device *dev)
{
struct w83627ehf_data *data = dev_get_drvdata(dev);
mutex_lock(&data->update_lock);
- if (time_after(jiffies, data->last_updated + HZ)
+ if (time_after(jiffies, data->last_updated + HZ + HZ/2)
|| !data->valid) {
/* Fan clock dividers */
- i = w83627ehf_read_value(data, W83627EHF_REG_FANDIV1);
- data->fan_div[0] = (i >> 4) & 0x03;
- data->fan_div[1] = (i >> 6) & 0x03;
- i = w83627ehf_read_value(data, W83627EHF_REG_FANDIV2);
- data->fan_div[2] = (i >> 6) & 0x03;
- i = w83627ehf_read_value(data, W83627EHF_REG_VBAT);
- data->fan_div[0] |= (i >> 3) & 0x04;
- data->fan_div[1] |= (i >> 4) & 0x04;
- data->fan_div[2] |= (i >> 5) & 0x04;
- if (data->has_fan & ((1 << 3) | (1 << 4))) {
- i = w83627ehf_read_value(data, W83627EHF_REG_DIODE);
- data->fan_div[3] = i & 0x03;
- data->fan_div[4] = ((i >> 2) & 0x03)
- | ((i >> 5) & 0x04);
- }
- if (data->has_fan & (1 << 3)) {
- i = w83627ehf_read_value(data, W83627EHF_REG_SMI_OVT);
- data->fan_div[3] |= (i >> 5) & 0x04;
- }
+ w83627ehf_update_fan_div(data);
/* Measured voltages and limits */
for (i = 0; i < data->in_num; i++) {
}
for (i = 0; i < 4; i++) {
- /* pwmcfg, tolarance mapped for i=0, i=1 to same reg */
+ /* pwmcfg, tolerance mapped for i=0, i=1 to same reg */
if (i != 1) {
pwmcfg = w83627ehf_read_value(data,
W83627EHF_REG_PWM_ENABLE[i]);
div_from_reg(new_div));
data->fan_div[nr] = new_div;
w83627ehf_write_fan_div(data, nr);
+ /* Give the chip time to sample a new speed value */
+ data->last_updated = jiffies;
}
w83627ehf_write_value(data, W83627EHF_REG_FAN_MIN[nr],
data->fan_min[nr]);
const char *buf, size_t count) \
{ \
struct w83627ehf_data *data = dev_get_drvdata(dev); \
- u32 val = simple_strtoul(buf, NULL, 10); \
+ long val = simple_strtol(buf, NULL, 10); \
\
mutex_lock(&data->update_lock); \
data->temp1_##reg = temp1_to_reg(val, -128000, 127000); \
struct w83627ehf_data *data = dev_get_drvdata(dev); \
struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
int nr = sensor_attr->index; \
- u32 val = simple_strtoul(buf, NULL, 10); \
+ long val = simple_strtol(buf, NULL, 10); \
\
mutex_lock(&data->update_lock); \
data->reg[nr] = LM75_TEMP_TO_REG(val); \
store_temp_reg(OVER, temp_max);
store_temp_reg(HYST, temp_max_hyst);
+static ssize_t
+show_temp_type(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct w83627ehf_data *data = w83627ehf_update_device(dev);
+ struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+ int nr = sensor_attr->index;
+ return sprintf(buf, "%d\n", (int)data->temp_type[nr]);
+}
+
static struct sensor_device_attribute sda_temp[] = {
SENSOR_ATTR(temp1_input, S_IRUGO, show_temp1, NULL, 0),
SENSOR_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 0),
SENSOR_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4),
SENSOR_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 5),
SENSOR_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 13),
+ SENSOR_ATTR(temp1_type, S_IRUGO, show_temp_type, NULL, 0),
+ SENSOR_ATTR(temp2_type, S_IRUGO, show_temp_type, NULL, 1),
+ SENSOR_ATTR(temp3_type, S_IRUGO, show_temp_type, NULL, 2),
};
#define show_pwm_reg(reg) \
store_fan_min_output, 2),
};
+static ssize_t
+show_vid(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct w83627ehf_data *data = dev_get_drvdata(dev);
+ return sprintf(buf, "%d\n", vid_from_reg(data->vid, data->vrm));
+}
+static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL);
+
/*
* Driver and device management
*/
device_remove_file(dev, &sda_temp[i].dev_attr);
device_remove_file(dev, &dev_attr_name);
+ device_remove_file(dev, &dev_attr_cpu0_vid);
}
/* Get the monitoring functions started */
static inline void __devinit w83627ehf_init_device(struct w83627ehf_data *data)
{
int i;
- u8 tmp;
+ u8 tmp, diode;
/* Start monitoring is needed */
tmp = w83627ehf_read_value(data, W83627EHF_REG_CONFIG);
W83627EHF_REG_TEMP_CONFIG[i],
tmp & 0xfe);
}
+
+ /* Enable VBAT monitoring if needed */
+ tmp = w83627ehf_read_value(data, W83627EHF_REG_VBAT);
+ if (!(tmp & 0x01))
+ w83627ehf_write_value(data, W83627EHF_REG_VBAT, tmp | 0x01);
+
+ /* Get thermal sensor types */
+ diode = w83627ehf_read_value(data, W83627EHF_REG_DIODE);
+ for (i = 0; i < 3; i++) {
+ if ((tmp & (0x02 << i)))
+ data->temp_type[i] = (diode & (0x10 << i)) ? 1 : 2;
+ else
+ data->temp_type[i] = 4; /* thermistor */
+ }
}
static int __devinit w83627ehf_probe(struct platform_device *pdev)
struct w83627ehf_sio_data *sio_data = dev->platform_data;
struct w83627ehf_data *data;
struct resource *res;
- u8 fan4pin, fan5pin;
+ u8 fan4pin, fan5pin, en_vrm10;
int i, err = 0;
res = platform_get_resource(pdev, IORESOURCE_IO, 0);
/* Initialize the chip */
w83627ehf_init_device(data);
- /* A few vars need to be filled upon startup */
- for (i = 0; i < 5; i++)
- data->fan_min[i] = w83627ehf_read_value(data,
- W83627EHF_REG_FAN_MIN[i]);
+ data->vrm = vid_which_vrm();
+ superio_enter(sio_data->sioreg);
+ /* Read VID value */
+ superio_select(sio_data->sioreg, W83627EHF_LD_HWM);
+ if (superio_inb(sio_data->sioreg, SIO_REG_VID_CTRL) & 0x80) {
+ /* Set VID input sensibility if needed. In theory the BIOS
+ should have set it, but in practice it's not always the
+ case. We only do it for the W83627EHF/EHG because the
+ W83627DHG is more complex in this respect. */
+ if (sio_data->kind == w83627ehf) {
+ en_vrm10 = superio_inb(sio_data->sioreg,
+ SIO_REG_EN_VRM10);
+ if ((en_vrm10 & 0x08) && data->vrm == 90) {
+ dev_warn(dev, "Setting VID input voltage to "
+ "TTL\n");
+ superio_outb(sio_data->sioreg, SIO_REG_EN_VRM10,
+ en_vrm10 & ~0x08);
+ } else if (!(en_vrm10 & 0x08) && data->vrm == 100) {
+ dev_warn(dev, "Setting VID input voltage to "
+ "VRM10\n");
+ superio_outb(sio_data->sioreg, SIO_REG_EN_VRM10,
+ en_vrm10 | 0x08);
+ }
+ }
+
+ data->vid = superio_inb(sio_data->sioreg, SIO_REG_VID_DATA);
+ if (sio_data->kind == w83627ehf) /* 6 VID pins only */
+ data->vid &= 0x3f;
+
+ err = device_create_file(dev, &dev_attr_cpu0_vid);
+ if (err)
+ goto exit_release;
+ } else {
+ dev_info(dev, "VID pins in output mode, CPU VID not "
+ "available\n");
+ }
/* fan4 and fan5 share some pins with the GPIO and serial flash */
- superio_enter(sio_data->sioreg);
fan5pin = superio_inb(sio_data->sioreg, 0x24) & 0x2;
fan4pin = superio_inb(sio_data->sioreg, 0x29) & 0x6;
superio_exit(sio_data->sioreg);
if (!(i & (1 << 1)) && (!fan5pin))
data->has_fan |= (1 << 4);
+ /* Read fan clock dividers immediately */
+ w83627ehf_update_fan_div(data);
+
/* Register sysfs hooks */
for (i = 0; i < ARRAY_SIZE(sda_sf3_arrays); i++)
if ((err = device_create_file(dev,
if (err)
goto exit_remove;
- data->class_dev = hwmon_device_register(dev);
- if (IS_ERR(data->class_dev)) {
- err = PTR_ERR(data->class_dev);
+ data->hwmon_dev = hwmon_device_register(dev);
+ if (IS_ERR(data->hwmon_dev)) {
+ err = PTR_ERR(data->hwmon_dev);
goto exit_remove;
}
{
struct w83627ehf_data *data = platform_get_drvdata(pdev);
- hwmon_device_unregister(data->class_dev);
+ hwmon_device_unregister(data->hwmon_dev);
w83627ehf_device_remove_files(&pdev->dev);
release_region(data->addr, IOREGION_LENGTH);
platform_set_drvdata(pdev, NULL);
superio_enter(sioaddr);
- val = (superio_inb(sioaddr, SIO_REG_DEVID) << 8)
- | superio_inb(sioaddr, SIO_REG_DEVID + 1);
+ if (force_id)
+ val = force_id;
+ else
+ val = (superio_inb(sioaddr, SIO_REG_DEVID) << 8)
+ | superio_inb(sioaddr, SIO_REG_DEVID + 1);
switch (val & SIO_ID_MASK) {
case SIO_W83627EHF_ID:
sio_data->kind = w83627ehf;
sio_name = sio_name_W83627DHG;
break;
default:
- pr_info(DRVNAME ": unsupported chip ID: 0x%04x\n",
- val);
+ if (val != 0xffff)
+ pr_debug(DRVNAME ": unsupported chip ID: 0x%04x\n",
+ val);
superio_exit(sioaddr);
return -ENODEV;
}
res.start = address + IOREGION_OFFSET;
res.end = address + IOREGION_OFFSET + IOREGION_LENGTH - 1;
res.flags = IORESOURCE_IO;
+
+ err = acpi_check_resource_conflict(&res);
+ if (err)
+ goto exit_device_put;
+
err = platform_device_add_resources(pdev, &res, 1);
if (err) {
printk(KERN_ERR DRVNAME ": Device resource addition failed "
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