* 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
hwmon: (ltc4245) Clear faults at startup
hwmon: (ltc4215) Clear faults at startup
hwmon: (coretemp) Add Lynnfield CPU
hwmon: (coretemp) Add support for Penryn mobile CPUs
hwmon: (coretemp) Fix Atom CPUs support
hwmon: Delete deprecated FSC drivers
hwmon: (adm1031) Add sysfs files for temperature offsets
---------------------------
-What: fscher and fscpos drivers
-When: June 2009
-Why: Deprecated by the new fschmd driver.
-Who: Hans de Goede <hdegoede@redhat.com>
- Jean Delvare <khali@linux-fr.org>
-
----------------------------
-
What: sysfs ui for changing p4-clockmod parameters
When: September 2009
Why: See commits 129f8ae9b1b5be94517da76009ea956e89104ce8 and
Supported chips:
* All Intel Core family
Prefix: 'coretemp'
- CPUID: family 0x6, models 0xe, 0xf, 0x16, 0x17
+ CPUID: family 0x6, models 0xe (Pentium M DC), 0xf (Core 2 DC 65nm),
+ 0x16 (Core 2 SC 65nm), 0x17 (Penryn 45nm),
+ 0x1a (Nehalem), 0x1c (Atom), 0x1e (Lynnfield)
Datasheet: Intel 64 and IA-32 Architectures Software Developer's Manual
Volume 3A: System Programming Guide
http://softwarecommunity.intel.com/Wiki/Mobility/720.htm
+++ /dev/null
-Kernel driver fscher
-====================
-
-Supported chips:
- * Fujitsu-Siemens Hermes chip
- Prefix: 'fscher'
- Addresses scanned: I2C 0x73
-
-Authors:
- Reinhard Nissl <rnissl@gmx.de> based on work
- from Hermann Jung <hej@odn.de>,
- Frodo Looijaard <frodol@dds.nl>,
- Philip Edelbrock <phil@netroedge.com>
-
-Description
------------
-
-This driver implements support for the Fujitsu-Siemens Hermes chip. It is
-described in the 'Register Set Specification BMC Hermes based Systemboard'
-from Fujitsu-Siemens.
-
-The Hermes chip implements a hardware-based system management, e.g. for
-controlling fan speed and core voltage. There is also a watchdog counter on
-the chip which can trigger an alarm and even shut the system down.
-
-The chip provides three temperature values (CPU, motherboard and
-auxiliary), three voltage values (+12V, +5V and battery) and three fans
-(power supply, CPU and auxiliary).
-
-Temperatures are measured in degrees Celsius. The resolution is 1 degree.
-
-Fan rotation speeds are reported in RPM (rotations per minute). The value
-can be divided by a programmable divider (1, 2 or 4) which is stored on
-the chip.
-
-Voltage sensors (also known as "in" sensors) report their values in volts.
-
-All values are reported as final values from the driver. There is no need
-for further calculations.
-
-
-Detailed description
---------------------
-
-Below you'll find a single line description of all the bit values. With
-this information, you're able to decode e. g. alarms, wdog, etc. To make
-use of the watchdog, you'll need to set the watchdog time and enable the
-watchdog. After that it is necessary to restart the watchdog time within
-the specified period of time, or a system reset will occur.
-
-* revision
- READING & 0xff = 0x??: HERMES revision identification
-
-* alarms
- READING & 0x80 = 0x80: CPU throttling active
- READING & 0x80 = 0x00: CPU running at full speed
-
- READING & 0x10 = 0x10: software event (see control:1)
- READING & 0x10 = 0x00: no software event
-
- READING & 0x08 = 0x08: watchdog event (see wdog:2)
- READING & 0x08 = 0x00: no watchdog event
-
- READING & 0x02 = 0x02: thermal event (see temp*:1)
- READING & 0x02 = 0x00: no thermal event
-
- READING & 0x01 = 0x01: fan event (see fan*:1)
- READING & 0x01 = 0x00: no fan event
-
- READING & 0x13 ! 0x00: ALERT LED is flashing
-
-* control
- READING & 0x01 = 0x01: software event
- READING & 0x01 = 0x00: no software event
-
- WRITING & 0x01 = 0x01: set software event
- WRITING & 0x01 = 0x00: clear software event
-
-* watchdog_control
- READING & 0x80 = 0x80: power off on watchdog event while thermal event
- READING & 0x80 = 0x00: watchdog power off disabled (just system reset enabled)
-
- READING & 0x40 = 0x40: watchdog timebase 60 seconds (see also wdog:1)
- READING & 0x40 = 0x00: watchdog timebase 2 seconds
-
- READING & 0x10 = 0x10: watchdog enabled
- READING & 0x10 = 0x00: watchdog disabled
-
- WRITING & 0x80 = 0x80: enable "power off on watchdog event while thermal event"
- WRITING & 0x80 = 0x00: disable "power off on watchdog event while thermal event"
-
- WRITING & 0x40 = 0x40: set watchdog timebase to 60 seconds
- WRITING & 0x40 = 0x00: set watchdog timebase to 2 seconds
-
- WRITING & 0x20 = 0x20: disable watchdog
-
- WRITING & 0x10 = 0x10: enable watchdog / restart watchdog time
-
-* watchdog_state
- READING & 0x02 = 0x02: watchdog system reset occurred
- READING & 0x02 = 0x00: no watchdog system reset occurred
-
- WRITING & 0x02 = 0x02: clear watchdog event
-
-* watchdog_preset
- READING & 0xff = 0x??: configured watch dog time in units (see wdog:3 0x40)
-
- WRITING & 0xff = 0x??: configure watch dog time in units
-
-* in* (0: +5V, 1: +12V, 2: onboard 3V battery)
- READING: actual voltage value
-
-* temp*_status (1: CPU sensor, 2: onboard sensor, 3: auxiliary sensor)
- READING & 0x02 = 0x02: thermal event (overtemperature)
- READING & 0x02 = 0x00: no thermal event
-
- READING & 0x01 = 0x01: sensor is working
- READING & 0x01 = 0x00: sensor is faulty
-
- WRITING & 0x02 = 0x02: clear thermal event
-
-* temp*_input (1: CPU sensor, 2: onboard sensor, 3: auxiliary sensor)
- READING: actual temperature value
-
-* fan*_status (1: power supply fan, 2: CPU fan, 3: auxiliary fan)
- READING & 0x04 = 0x04: fan event (fan fault)
- READING & 0x04 = 0x00: no fan event
-
- WRITING & 0x04 = 0x04: clear fan event
-
-* fan*_div (1: power supply fan, 2: CPU fan, 3: auxiliary fan)
- Divisors 2,4 and 8 are supported, both for reading and writing
-
-* fan*_pwm (1: power supply fan, 2: CPU fan, 3: auxiliary fan)
- READING & 0xff = 0x00: fan may be switched off
- READING & 0xff = 0x01: fan must run at least at minimum speed (supply: 6V)
- READING & 0xff = 0xff: fan must run at maximum speed (supply: 12V)
- READING & 0xff = 0x??: fan must run at least at given speed (supply: 6V..12V)
-
- WRITING & 0xff = 0x00: fan may be switched off
- WRITING & 0xff = 0x01: fan must run at least at minimum speed (supply: 6V)
- WRITING & 0xff = 0xff: fan must run at maximum speed (supply: 12V)
- WRITING & 0xff = 0x??: fan must run at least at given speed (supply: 6V..12V)
-
-* fan*_input (1: power supply fan, 2: CPU fan, 3: auxiliary fan)
- READING: actual RPM value
-
-
-Limitations
------------
-
-* Measuring fan speed
-It seems that the chip counts "ripples" (typical fans produce 2 ripples per
-rotation while VERAX fans produce 18) in a 9-bit register. This register is
-read out every second, then the ripple prescaler (2, 4 or 8) is applied and
-the result is stored in the 8 bit output register. Due to the limitation of
-the counting register to 9 bits, it is impossible to measure a VERAX fan
-properly (even with a prescaler of 8). At its maximum speed of 3500 RPM the
-fan produces 1080 ripples per second which causes the counting register to
-overflow twice, leading to only 186 RPM.
-
-* Measuring input voltages
-in2 ("battery") reports the voltage of the onboard lithium battery and not
-+3.3V from the power supply.
-
-* Undocumented features
-Fujitsu-Siemens Computers has not documented all features of the chip so
-far. Their software, System Guard, shows that there are a still some
-features which cannot be controlled by this implementation.
This driver can also be built as a module. If so, the module
will be called f75375s.
-config SENSORS_FSCHER
- tristate "FSC Hermes (DEPRECATED)"
- depends on X86 && I2C
- help
- This driver is DEPRECATED please use the new merged fschmd
- ("FSC Poseidon, Scylla, Hermes, Heimdall and Heracles") driver
- instead.
-
- If you say yes here you get support for Fujitsu Siemens
- Computers Hermes sensor chips.
-
- This driver can also be built as a module. If so, the module
- will be called fscher.
-
-config SENSORS_FSCPOS
- tristate "FSC Poseidon (DEPRECATED)"
- depends on X86 && I2C
- help
- This driver is DEPRECATED please use the new merged fschmd
- ("FSC Poseidon, Scylla, Hermes, Heimdall and Heracles") driver
- instead.
-
- If you say yes here you get support for Fujitsu Siemens
- Computers Poseidon sensor chips.
-
- This driver can also be built as a module. If so, the module
- will be called fscpos.
-
config SENSORS_FSCHMD
tristate "Fujitsu Siemens Computers sensor chips"
depends on X86 && I2C
will be called gl520sm.
config SENSORS_CORETEMP
- tristate "Intel Core (2) Duo/Solo temperature sensor"
+ tristate "Intel Core/Core2/Atom temperature sensor"
depends on X86 && EXPERIMENTAL
help
If you say yes here you get support for the temperature
- sensor inside your CPU. Supported all are all known variants
- of Intel Core family.
+ sensor inside your CPU. Most of the family 6 CPUs
+ are supported. Check documentation/driver for details.
config SENSORS_IBMAEM
tristate "IBM Active Energy Manager temperature/power sensors and control"
obj-$(CONFIG_SENSORS_F71805F) += f71805f.o
obj-$(CONFIG_SENSORS_F71882FG) += f71882fg.o
obj-$(CONFIG_SENSORS_F75375S) += f75375s.o
-obj-$(CONFIG_SENSORS_FSCHER) += fscher.o
obj-$(CONFIG_SENSORS_FSCHMD) += fschmd.o
-obj-$(CONFIG_SENSORS_FSCPOS) += fscpos.o
obj-$(CONFIG_SENSORS_G760A) += g760a.o
obj-$(CONFIG_SENSORS_GL518SM) += gl518sm.o
obj-$(CONFIG_SENSORS_GL520SM) += gl520sm.o
#define ADM1031_REG_PWM (0x22)
#define ADM1031_REG_FAN_MIN(nr) (0x10 + (nr))
+#define ADM1031_REG_TEMP_OFFSET(nr) (0x0d + (nr))
#define ADM1031_REG_TEMP_MAX(nr) (0x14 + 4 * (nr))
#define ADM1031_REG_TEMP_MIN(nr) (0x15 + 4 * (nr))
#define ADM1031_REG_TEMP_CRIT(nr) (0x16 + 4 * (nr))
u8 auto_temp_min[3];
u8 auto_temp_off[3];
u8 auto_temp_max[3];
+ s8 temp_offset[3];
s8 temp_min[3];
s8 temp_max[3];
s8 temp_crit[3];
#define TEMP_FROM_REG_EXT(val, ext) (TEMP_FROM_REG(val) + (ext) * 125)
+#define TEMP_OFFSET_TO_REG(val) (TEMP_TO_REG(val) & 0x8f)
+#define TEMP_OFFSET_FROM_REG(val) TEMP_FROM_REG((val) < 0 ? \
+ (val) | 0x70 : (val))
+
#define FAN_FROM_REG(reg, div) ((reg) ? (11250 * 60) / ((reg) * (div)) : 0)
static int FAN_TO_REG(int reg, int div)
(((data->ext_temp[nr] >> ((nr - 1) * 3)) & 7));
return sprintf(buf, "%d\n", TEMP_FROM_REG_EXT(data->temp[nr], ext));
}
+static ssize_t show_temp_offset(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ int nr = to_sensor_dev_attr(attr)->index;
+ struct adm1031_data *data = adm1031_update_device(dev);
+ return sprintf(buf, "%d\n",
+ TEMP_OFFSET_FROM_REG(data->temp_offset[nr]));
+}
static ssize_t show_temp_min(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct adm1031_data *data = adm1031_update_device(dev);
return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_crit[nr]));
}
+static ssize_t set_temp_offset(struct device *dev,
+ struct device_attribute *attr, const char *buf,
+ size_t count)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct adm1031_data *data = i2c_get_clientdata(client);
+ int nr = to_sensor_dev_attr(attr)->index;
+ int val;
+
+ val = simple_strtol(buf, NULL, 10);
+ val = SENSORS_LIMIT(val, -15000, 15000);
+ mutex_lock(&data->update_lock);
+ data->temp_offset[nr] = TEMP_OFFSET_TO_REG(val);
+ adm1031_write_value(client, ADM1031_REG_TEMP_OFFSET(nr),
+ data->temp_offset[nr]);
+ mutex_unlock(&data->update_lock);
+ return count;
+}
static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
#define temp_reg(offset) \
static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, \
show_temp, NULL, offset - 1); \
+static SENSOR_DEVICE_ATTR(temp##offset##_offset, S_IRUGO | S_IWUSR, \
+ show_temp_offset, set_temp_offset, offset - 1); \
static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR, \
show_temp_min, set_temp_min, offset - 1); \
static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \
&sensor_dev_attr_pwm1.dev_attr.attr,
&sensor_dev_attr_auto_fan1_channel.dev_attr.attr,
&sensor_dev_attr_temp1_input.dev_attr.attr,
+ &sensor_dev_attr_temp1_offset.dev_attr.attr,
&sensor_dev_attr_temp1_min.dev_attr.attr,
&sensor_dev_attr_temp1_min_alarm.dev_attr.attr,
&sensor_dev_attr_temp1_max.dev_attr.attr,
&sensor_dev_attr_temp1_crit.dev_attr.attr,
&sensor_dev_attr_temp1_crit_alarm.dev_attr.attr,
&sensor_dev_attr_temp2_input.dev_attr.attr,
+ &sensor_dev_attr_temp2_offset.dev_attr.attr,
&sensor_dev_attr_temp2_min.dev_attr.attr,
&sensor_dev_attr_temp2_min_alarm.dev_attr.attr,
&sensor_dev_attr_temp2_max.dev_attr.attr,
&sensor_dev_attr_pwm2.dev_attr.attr,
&sensor_dev_attr_auto_fan2_channel.dev_attr.attr,
&sensor_dev_attr_temp3_input.dev_attr.attr,
+ &sensor_dev_attr_temp3_offset.dev_attr.attr,
&sensor_dev_attr_temp3_min.dev_attr.attr,
&sensor_dev_attr_temp3_min_alarm.dev_attr.attr,
&sensor_dev_attr_temp3_max.dev_attr.attr,
}
data->temp[chan] = newh;
+ data->temp_offset[chan] =
+ adm1031_read_value(client,
+ ADM1031_REG_TEMP_OFFSET(chan));
data->temp_min[chan] =
adm1031_read_value(client,
ADM1031_REG_TEMP_MIN(chan));
/* The 100C is default for both mobile and non mobile CPUs */
int tjmax = 100000;
- int ismobile = 1;
+ int tjmax_ee = 85000;
+ int usemsr_ee = 1;
int err;
u32 eax, edx;
/* Early chips have no MSR for TjMax */
if ((c->x86_model == 0xf) && (c->x86_mask < 4)) {
- ismobile = 0;
+ usemsr_ee = 0;
}
- if ((c->x86_model > 0xe) && (ismobile)) {
+ /* Atoms seems to have TjMax at 90C */
+
+ if (c->x86_model == 0x1c) {
+ usemsr_ee = 0;
+ tjmax = 90000;
+ }
+
+ if ((c->x86_model > 0xe) && (usemsr_ee)) {
+ u8 platform_id;
/* Now we can detect the mobile CPU using Intel provided table
http://softwarecommunity.intel.com/Wiki/Mobility/720.htm
dev_warn(dev,
"Unable to access MSR 0x17, assuming desktop"
" CPU\n");
- ismobile = 0;
- } else if (!(eax & 0x10000000)) {
- ismobile = 0;
+ usemsr_ee = 0;
+ } else if (c->x86_model < 0x17 && !(eax & 0x10000000)) {
+ /* Trust bit 28 up to Penryn, I could not find any
+ documentation on that; if you happen to know
+ someone at Intel please ask */
+ usemsr_ee = 0;
+ } else {
+ /* Platform ID bits 52:50 (EDX starts at bit 32) */
+ platform_id = (edx >> 18) & 0x7;
+
+ /* Mobile Penryn CPU seems to be platform ID 7 or 5
+ (guesswork) */
+ if ((c->x86_model == 0x17) &&
+ ((platform_id == 5) || (platform_id == 7))) {
+ /* If MSR EE bit is set, set it to 90 degrees C,
+ otherwise 105 degrees C */
+ tjmax_ee = 90000;
+ tjmax = 105000;
+ }
}
}
- if (ismobile || c->x86_model == 0x1c) {
+ if (usemsr_ee) {
err = rdmsr_safe_on_cpu(id, 0xee, &eax, &edx);
if (err) {
"Unable to access MSR 0xEE, for Tjmax, left"
" at default");
} else if (eax & 0x40000000) {
- tjmax = 85000;
+ tjmax = tjmax_ee;
}
- } else {
+ /* if we dont use msr EE it means we are desktop CPU (with exeception
+ of Atom) */
+ } else if (tjmax == 100000) {
dev_warn(dev, "Using relative temperature scale!\n");
}
platform_set_drvdata(pdev, data);
/* read the still undocumented IA32_TEMPERATURE_TARGET it exists
- on older CPUs but not in this register */
+ on older CPUs but not in this register, Atoms don't have it either */
- if (c->x86_model > 0xe) {
+ if ((c->x86_model > 0xe) && (c->x86_model != 0x1c)) {
err = rdmsr_safe_on_cpu(data->id, 0x1a2, &eax, &edx);
if (err) {
dev_warn(&pdev->dev, "Unable to read"
for_each_online_cpu(i) {
struct cpuinfo_x86 *c = &cpu_data(i);
- /* check if family 6, models 0xe, 0xf, 0x16, 0x17, 0x1A */
+ /* check if family 6, models 0xe (Pentium M DC),
+ 0xf (Core 2 DC 65nm), 0x16 (Core 2 SC 65nm),
+ 0x17 (Penryn 45nm), 0x1a (Nehalem), 0x1c (Atom),
+ 0x1e (Lynnfield) */
if ((c->cpuid_level < 0) || (c->x86 != 0x6) ||
!((c->x86_model == 0xe) || (c->x86_model == 0xf) ||
(c->x86_model == 0x16) || (c->x86_model == 0x17) ||
- (c->x86_model == 0x1A) || (c->x86_model == 0x1c))) {
+ (c->x86_model == 0x1a) || (c->x86_model == 0x1c) ||
+ (c->x86_model == 0x1e))) {
/* supported CPU not found, but report the unknown
family 6 CPU */
+++ /dev/null
-/*
- * fscher.c - Part of lm_sensors, Linux kernel modules for hardware
- * monitoring
- * Copyright (C) 2003, 2004 Reinhard Nissl <rnissl@gmx.de>
- *
- * 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.
- */
-
-/*
- * fujitsu siemens hermes chip,
- * module based on fscpos.c
- * Copyright (C) 2000 Hermann Jung <hej@odn.de>
- * Copyright (C) 1998, 1999 Frodo Looijaard <frodol@dds.nl>
- * and Philip Edelbrock <phil@netroedge.com>
- */
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/jiffies.h>
-#include <linux/i2c.h>
-#include <linux/hwmon.h>
-#include <linux/err.h>
-#include <linux/mutex.h>
-#include <linux/sysfs.h>
-
-/*
- * Addresses to scan
- */
-
-static const unsigned short normal_i2c[] = { 0x73, I2C_CLIENT_END };
-
-/*
- * Insmod parameters
- */
-
-I2C_CLIENT_INSMOD_1(fscher);
-
-/*
- * The FSCHER registers
- */
-
-/* chip identification */
-#define FSCHER_REG_IDENT_0 0x00
-#define FSCHER_REG_IDENT_1 0x01
-#define FSCHER_REG_IDENT_2 0x02
-#define FSCHER_REG_REVISION 0x03
-
-/* global control and status */
-#define FSCHER_REG_EVENT_STATE 0x04
-#define FSCHER_REG_CONTROL 0x05
-
-/* watchdog */
-#define FSCHER_REG_WDOG_PRESET 0x28
-#define FSCHER_REG_WDOG_STATE 0x23
-#define FSCHER_REG_WDOG_CONTROL 0x21
-
-/* fan 0 */
-#define FSCHER_REG_FAN0_MIN 0x55
-#define FSCHER_REG_FAN0_ACT 0x0e
-#define FSCHER_REG_FAN0_STATE 0x0d
-#define FSCHER_REG_FAN0_RIPPLE 0x0f
-
-/* fan 1 */
-#define FSCHER_REG_FAN1_MIN 0x65
-#define FSCHER_REG_FAN1_ACT 0x6b
-#define FSCHER_REG_FAN1_STATE 0x62
-#define FSCHER_REG_FAN1_RIPPLE 0x6f
-
-/* fan 2 */
-#define FSCHER_REG_FAN2_MIN 0xb5
-#define FSCHER_REG_FAN2_ACT 0xbb
-#define FSCHER_REG_FAN2_STATE 0xb2
-#define FSCHER_REG_FAN2_RIPPLE 0xbf
-
-/* voltage supervision */
-#define FSCHER_REG_VOLT_12 0x45
-#define FSCHER_REG_VOLT_5 0x42
-#define FSCHER_REG_VOLT_BATT 0x48
-
-/* temperature 0 */
-#define FSCHER_REG_TEMP0_ACT 0x64
-#define FSCHER_REG_TEMP0_STATE 0x71
-
-/* temperature 1 */
-#define FSCHER_REG_TEMP1_ACT 0x32
-#define FSCHER_REG_TEMP1_STATE 0x81
-
-/* temperature 2 */
-#define FSCHER_REG_TEMP2_ACT 0x35
-#define FSCHER_REG_TEMP2_STATE 0x91
-
-/*
- * Functions declaration
- */
-
-static int fscher_probe(struct i2c_client *client,
- const struct i2c_device_id *id);
-static int fscher_detect(struct i2c_client *client, int kind,
- struct i2c_board_info *info);
-static int fscher_remove(struct i2c_client *client);
-static struct fscher_data *fscher_update_device(struct device *dev);
-static void fscher_init_client(struct i2c_client *client);
-
-static int fscher_read_value(struct i2c_client *client, u8 reg);
-static int fscher_write_value(struct i2c_client *client, u8 reg, u8 value);
-
-/*
- * Driver data (common to all clients)
- */
-
-static const struct i2c_device_id fscher_id[] = {
- { "fscher", fscher },
- { }
-};
-
-static struct i2c_driver fscher_driver = {
- .class = I2C_CLASS_HWMON,
- .driver = {
- .name = "fscher",
- },
- .probe = fscher_probe,
- .remove = fscher_remove,
- .id_table = fscher_id,
- .detect = fscher_detect,
- .address_data = &addr_data,
-};
-
-/*
- * Client data (each client gets its own)
- */
-
-struct fscher_data {
- struct device *hwmon_dev;
- struct mutex update_lock;
- char valid; /* zero until following fields are valid */
- unsigned long last_updated; /* in jiffies */
-
- /* register values */
- u8 revision; /* revision of chip */
- u8 global_event; /* global event status */
- u8 global_control; /* global control register */
- u8 watchdog[3]; /* watchdog */
- u8 volt[3]; /* 12, 5, battery voltage */
- u8 temp_act[3]; /* temperature */
- u8 temp_status[3]; /* status of sensor */
- u8 fan_act[3]; /* fans revolutions per second */
- u8 fan_status[3]; /* fan status */
- u8 fan_min[3]; /* fan min value for rps */
- u8 fan_ripple[3]; /* divider for rps */
-};
-
-/*
- * Sysfs stuff
- */
-
-#define sysfs_r(kind, sub, offset, reg) \
-static ssize_t show_##kind##sub (struct fscher_data *, char *, int); \
-static ssize_t show_##kind##offset##sub (struct device *, struct device_attribute *attr, char *); \
-static ssize_t show_##kind##offset##sub (struct device *dev, struct device_attribute *attr, char *buf) \
-{ \
- struct fscher_data *data = fscher_update_device(dev); \
- return show_##kind##sub(data, buf, (offset)); \
-}
-
-#define sysfs_w(kind, sub, offset, reg) \
-static ssize_t set_##kind##sub (struct i2c_client *, struct fscher_data *, const char *, size_t, int, int); \
-static ssize_t set_##kind##offset##sub (struct device *, struct device_attribute *attr, const char *, size_t); \
-static ssize_t set_##kind##offset##sub (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) \
-{ \
- struct i2c_client *client = to_i2c_client(dev); \
- struct fscher_data *data = i2c_get_clientdata(client); \
- return set_##kind##sub(client, data, buf, count, (offset), reg); \
-}
-
-#define sysfs_rw_n(kind, sub, offset, reg) \
-sysfs_r(kind, sub, offset, reg) \
-sysfs_w(kind, sub, offset, reg) \
-static DEVICE_ATTR(kind##offset##sub, S_IRUGO | S_IWUSR, show_##kind##offset##sub, set_##kind##offset##sub);
-
-#define sysfs_rw(kind, sub, reg) \
-sysfs_r(kind, sub, 0, reg) \
-sysfs_w(kind, sub, 0, reg) \
-static DEVICE_ATTR(kind##sub, S_IRUGO | S_IWUSR, show_##kind##0##sub, set_##kind##0##sub);
-
-#define sysfs_ro_n(kind, sub, offset, reg) \
-sysfs_r(kind, sub, offset, reg) \
-static DEVICE_ATTR(kind##offset##sub, S_IRUGO, show_##kind##offset##sub, NULL);
-
-#define sysfs_ro(kind, sub, reg) \
-sysfs_r(kind, sub, 0, reg) \
-static DEVICE_ATTR(kind, S_IRUGO, show_##kind##0##sub, NULL);
-
-#define sysfs_fan(offset, reg_status, reg_min, reg_ripple, reg_act) \
-sysfs_rw_n(pwm, , offset, reg_min) \
-sysfs_rw_n(fan, _status, offset, reg_status) \
-sysfs_rw_n(fan, _div , offset, reg_ripple) \
-sysfs_ro_n(fan, _input , offset, reg_act)
-
-#define sysfs_temp(offset, reg_status, reg_act) \
-sysfs_rw_n(temp, _status, offset, reg_status) \
-sysfs_ro_n(temp, _input , offset, reg_act)
-
-#define sysfs_in(offset, reg_act) \
-sysfs_ro_n(in, _input, offset, reg_act)
-
-#define sysfs_revision(reg_revision) \
-sysfs_ro(revision, , reg_revision)
-
-#define sysfs_alarms(reg_events) \
-sysfs_ro(alarms, , reg_events)
-
-#define sysfs_control(reg_control) \
-sysfs_rw(control, , reg_control)
-
-#define sysfs_watchdog(reg_control, reg_status, reg_preset) \
-sysfs_rw(watchdog, _control, reg_control) \
-sysfs_rw(watchdog, _status , reg_status) \
-sysfs_rw(watchdog, _preset , reg_preset)
-
-sysfs_fan(1, FSCHER_REG_FAN0_STATE, FSCHER_REG_FAN0_MIN,
- FSCHER_REG_FAN0_RIPPLE, FSCHER_REG_FAN0_ACT)
-sysfs_fan(2, FSCHER_REG_FAN1_STATE, FSCHER_REG_FAN1_MIN,
- FSCHER_REG_FAN1_RIPPLE, FSCHER_REG_FAN1_ACT)
-sysfs_fan(3, FSCHER_REG_FAN2_STATE, FSCHER_REG_FAN2_MIN,
- FSCHER_REG_FAN2_RIPPLE, FSCHER_REG_FAN2_ACT)
-
-sysfs_temp(1, FSCHER_REG_TEMP0_STATE, FSCHER_REG_TEMP0_ACT)
-sysfs_temp(2, FSCHER_REG_TEMP1_STATE, FSCHER_REG_TEMP1_ACT)
-sysfs_temp(3, FSCHER_REG_TEMP2_STATE, FSCHER_REG_TEMP2_ACT)
-
-sysfs_in(0, FSCHER_REG_VOLT_12)
-sysfs_in(1, FSCHER_REG_VOLT_5)
-sysfs_in(2, FSCHER_REG_VOLT_BATT)
-
-sysfs_revision(FSCHER_REG_REVISION)
-sysfs_alarms(FSCHER_REG_EVENTS)
-sysfs_control(FSCHER_REG_CONTROL)
-sysfs_watchdog(FSCHER_REG_WDOG_CONTROL, FSCHER_REG_WDOG_STATE, FSCHER_REG_WDOG_PRESET)
-
-static struct attribute *fscher_attributes[] = {
- &dev_attr_revision.attr,
- &dev_attr_alarms.attr,
- &dev_attr_control.attr,
-
- &dev_attr_watchdog_status.attr,
- &dev_attr_watchdog_control.attr,
- &dev_attr_watchdog_preset.attr,
-
- &dev_attr_in0_input.attr,
- &dev_attr_in1_input.attr,
- &dev_attr_in2_input.attr,
-
- &dev_attr_fan1_status.attr,
- &dev_attr_fan1_div.attr,
- &dev_attr_fan1_input.attr,
- &dev_attr_pwm1.attr,
- &dev_attr_fan2_status.attr,
- &dev_attr_fan2_div.attr,
- &dev_attr_fan2_input.attr,
- &dev_attr_pwm2.attr,
- &dev_attr_fan3_status.attr,
- &dev_attr_fan3_div.attr,
- &dev_attr_fan3_input.attr,
- &dev_attr_pwm3.attr,
-
- &dev_attr_temp1_status.attr,
- &dev_attr_temp1_input.attr,
- &dev_attr_temp2_status.attr,
- &dev_attr_temp2_input.attr,
- &dev_attr_temp3_status.attr,
- &dev_attr_temp3_input.attr,
- NULL
-};
-
-static const struct attribute_group fscher_group = {
- .attrs = fscher_attributes,
-};
-
-/*
- * Real code
- */
-
-/* Return 0 if detection is successful, -ENODEV otherwise */
-static int fscher_detect(struct i2c_client *new_client, int kind,
- struct i2c_board_info *info)
-{
- struct i2c_adapter *adapter = new_client->adapter;
-
- if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
- return -ENODEV;
-
- /* Do the remaining detection unless force or force_fscher parameter */
- if (kind < 0) {
- if ((i2c_smbus_read_byte_data(new_client,
- FSCHER_REG_IDENT_0) != 0x48) /* 'H' */
- || (i2c_smbus_read_byte_data(new_client,
- FSCHER_REG_IDENT_1) != 0x45) /* 'E' */
- || (i2c_smbus_read_byte_data(new_client,
- FSCHER_REG_IDENT_2) != 0x52)) /* 'R' */
- return -ENODEV;
- }
-
- strlcpy(info->type, "fscher", I2C_NAME_SIZE);
-
- return 0;
-}
-
-static int fscher_probe(struct i2c_client *new_client,
- const struct i2c_device_id *id)
-{
- struct fscher_data *data;
- int err;
-
- data = kzalloc(sizeof(struct fscher_data), GFP_KERNEL);
- if (!data) {
- err = -ENOMEM;
- goto exit;
- }
-
- i2c_set_clientdata(new_client, data);
- data->valid = 0;
- mutex_init(&data->update_lock);
-
- fscher_init_client(new_client);
-
- /* Register sysfs hooks */
- if ((err = sysfs_create_group(&new_client->dev.kobj, &fscher_group)))
- goto exit_free;
-
- data->hwmon_dev = hwmon_device_register(&new_client->dev);
- if (IS_ERR(data->hwmon_dev)) {
- err = PTR_ERR(data->hwmon_dev);
- goto exit_remove_files;
- }
-
- return 0;
-
-exit_remove_files:
- sysfs_remove_group(&new_client->dev.kobj, &fscher_group);
-exit_free:
- kfree(data);
-exit:
- return err;
-}
-
-static int fscher_remove(struct i2c_client *client)
-{
- struct fscher_data *data = i2c_get_clientdata(client);
-
- hwmon_device_unregister(data->hwmon_dev);
- sysfs_remove_group(&client->dev.kobj, &fscher_group);
-
- kfree(data);
- return 0;
-}
-
-static int fscher_read_value(struct i2c_client *client, u8 reg)
-{
- dev_dbg(&client->dev, "read reg 0x%02x\n", reg);
-
- return i2c_smbus_read_byte_data(client, reg);
-}
-
-static int fscher_write_value(struct i2c_client *client, u8 reg, u8 value)
-{
- dev_dbg(&client->dev, "write reg 0x%02x, val 0x%02x\n",
- reg, value);
-
- return i2c_smbus_write_byte_data(client, reg, value);
-}
-
-/* Called when we have found a new FSC Hermes. */
-static void fscher_init_client(struct i2c_client *client)
-{
- struct fscher_data *data = i2c_get_clientdata(client);
-
- /* Read revision from chip */
- data->revision = fscher_read_value(client, FSCHER_REG_REVISION);
-}
-
-static struct fscher_data *fscher_update_device(struct device *dev)
-{
- struct i2c_client *client = to_i2c_client(dev);
- struct fscher_data *data = i2c_get_clientdata(client);
-
- mutex_lock(&data->update_lock);
-
- if (time_after(jiffies, data->last_updated + 2 * HZ) || !data->valid) {
-
- dev_dbg(&client->dev, "Starting fscher update\n");
-
- data->temp_act[0] = fscher_read_value(client, FSCHER_REG_TEMP0_ACT);
- data->temp_act[1] = fscher_read_value(client, FSCHER_REG_TEMP1_ACT);
- data->temp_act[2] = fscher_read_value(client, FSCHER_REG_TEMP2_ACT);
- data->temp_status[0] = fscher_read_value(client, FSCHER_REG_TEMP0_STATE);
- data->temp_status[1] = fscher_read_value(client, FSCHER_REG_TEMP1_STATE);
- data->temp_status[2] = fscher_read_value(client, FSCHER_REG_TEMP2_STATE);
-
- data->volt[0] = fscher_read_value(client, FSCHER_REG_VOLT_12);
- data->volt[1] = fscher_read_value(client, FSCHER_REG_VOLT_5);
- data->volt[2] = fscher_read_value(client, FSCHER_REG_VOLT_BATT);
-
- data->fan_act[0] = fscher_read_value(client, FSCHER_REG_FAN0_ACT);
- data->fan_act[1] = fscher_read_value(client, FSCHER_REG_FAN1_ACT);
- data->fan_act[2] = fscher_read_value(client, FSCHER_REG_FAN2_ACT);
- data->fan_status[0] = fscher_read_value(client, FSCHER_REG_FAN0_STATE);
- data->fan_status[1] = fscher_read_value(client, FSCHER_REG_FAN1_STATE);
- data->fan_status[2] = fscher_read_value(client, FSCHER_REG_FAN2_STATE);
- data->fan_min[0] = fscher_read_value(client, FSCHER_REG_FAN0_MIN);
- data->fan_min[1] = fscher_read_value(client, FSCHER_REG_FAN1_MIN);
- data->fan_min[2] = fscher_read_value(client, FSCHER_REG_FAN2_MIN);
- data->fan_ripple[0] = fscher_read_value(client, FSCHER_REG_FAN0_RIPPLE);
- data->fan_ripple[1] = fscher_read_value(client, FSCHER_REG_FAN1_RIPPLE);
- data->fan_ripple[2] = fscher_read_value(client, FSCHER_REG_FAN2_RIPPLE);
-
- data->watchdog[0] = fscher_read_value(client, FSCHER_REG_WDOG_PRESET);
- data->watchdog[1] = fscher_read_value(client, FSCHER_REG_WDOG_STATE);
- data->watchdog[2] = fscher_read_value(client, FSCHER_REG_WDOG_CONTROL);
-
- data->global_event = fscher_read_value(client, FSCHER_REG_EVENT_STATE);
- data->global_control = fscher_read_value(client,
- FSCHER_REG_CONTROL);
-
- data->last_updated = jiffies;
- data->valid = 1;
- }
-
- mutex_unlock(&data->update_lock);
-
- return data;
-}
-
-
-
-#define FAN_INDEX_FROM_NUM(nr) ((nr) - 1)
-
-static ssize_t set_fan_status(struct i2c_client *client, struct fscher_data *data,
- const char *buf, size_t count, int nr, int reg)
-{
- /* bits 0..1, 3..7 reserved => mask with 0x04 */
- unsigned long v = simple_strtoul(buf, NULL, 10) & 0x04;
-
- mutex_lock(&data->update_lock);
- data->fan_status[FAN_INDEX_FROM_NUM(nr)] &= ~v;
- fscher_write_value(client, reg, v);
- mutex_unlock(&data->update_lock);
- return count;
-}
-
-static ssize_t show_fan_status(struct fscher_data *data, char *buf, int nr)
-{
- /* bits 0..1, 3..7 reserved => mask with 0x04 */
- return sprintf(buf, "%u\n", data->fan_status[FAN_INDEX_FROM_NUM(nr)] & 0x04);
-}
-
-static ssize_t set_pwm(struct i2c_client *client, struct fscher_data *data,
- const char *buf, size_t count, int nr, int reg)
-{
- unsigned long v = simple_strtoul(buf, NULL, 10);
-
- mutex_lock(&data->update_lock);
- data->fan_min[FAN_INDEX_FROM_NUM(nr)] = v > 0xff ? 0xff : v;
- fscher_write_value(client, reg, data->fan_min[FAN_INDEX_FROM_NUM(nr)]);
- mutex_unlock(&data->update_lock);
- return count;
-}
-
-static ssize_t show_pwm(struct fscher_data *data, char *buf, int nr)
-{
- return sprintf(buf, "%u\n", data->fan_min[FAN_INDEX_FROM_NUM(nr)]);
-}
-
-static ssize_t set_fan_div(struct i2c_client *client, struct fscher_data *data,
- const char *buf, size_t count, int nr, int reg)
-{
- /* supported values: 2, 4, 8 */
- unsigned long v = simple_strtoul(buf, NULL, 10);
-
- switch (v) {
- case 2: v = 1; break;
- case 4: v = 2; break;
- case 8: v = 3; break;
- default:
- dev_err(&client->dev, "fan_div value %ld not "
- "supported. Choose one of 2, 4 or 8!\n", v);
- return -EINVAL;
- }
-
- mutex_lock(&data->update_lock);
-
- /* bits 2..7 reserved => mask with 0x03 */
- data->fan_ripple[FAN_INDEX_FROM_NUM(nr)] &= ~0x03;
- data->fan_ripple[FAN_INDEX_FROM_NUM(nr)] |= v;
-
- fscher_write_value(client, reg, data->fan_ripple[FAN_INDEX_FROM_NUM(nr)]);
- mutex_unlock(&data->update_lock);
- return count;
-}
-
-static ssize_t show_fan_div(struct fscher_data *data, char *buf, int nr)
-{
- /* bits 2..7 reserved => mask with 0x03 */
- return sprintf(buf, "%u\n", 1 << (data->fan_ripple[FAN_INDEX_FROM_NUM(nr)] & 0x03));
-}
-
-#define RPM_FROM_REG(val) (val*60)
-
-static ssize_t show_fan_input (struct fscher_data *data, char *buf, int nr)
-{
- return sprintf(buf, "%u\n", RPM_FROM_REG(data->fan_act[FAN_INDEX_FROM_NUM(nr)]));
-}
-
-
-
-#define TEMP_INDEX_FROM_NUM(nr) ((nr) - 1)
-
-static ssize_t set_temp_status(struct i2c_client *client, struct fscher_data *data,
- const char *buf, size_t count, int nr, int reg)
-{
- /* bits 2..7 reserved, 0 read only => mask with 0x02 */
- unsigned long v = simple_strtoul(buf, NULL, 10) & 0x02;
-
- mutex_lock(&data->update_lock);
- data->temp_status[TEMP_INDEX_FROM_NUM(nr)] &= ~v;
- fscher_write_value(client, reg, v);
- mutex_unlock(&data->update_lock);
- return count;
-}
-
-static ssize_t show_temp_status(struct fscher_data *data, char *buf, int nr)
-{
- /* bits 2..7 reserved => mask with 0x03 */
- return sprintf(buf, "%u\n", data->temp_status[TEMP_INDEX_FROM_NUM(nr)] & 0x03);
-}
-
-#define TEMP_FROM_REG(val) (((val) - 128) * 1000)
-
-static ssize_t show_temp_input(struct fscher_data *data, char *buf, int nr)
-{
- return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_act[TEMP_INDEX_FROM_NUM(nr)]));
-}
-
-/*
- * The final conversion is specified in sensors.conf, as it depends on
- * mainboard specific values. We export the registers contents as
- * pseudo-hundredths-of-Volts (range 0V - 2.55V). Not that it makes much
- * sense per se, but it minimizes the conversions count and keeps the
- * values within a usual range.
- */
-#define VOLT_FROM_REG(val) ((val) * 10)
-
-static ssize_t show_in_input(struct fscher_data *data, char *buf, int nr)
-{
- return sprintf(buf, "%u\n", VOLT_FROM_REG(data->volt[nr]));
-}
-
-
-
-static ssize_t show_revision(struct fscher_data *data, char *buf, int nr)
-{
- return sprintf(buf, "%u\n", data->revision);
-}
-
-
-
-static ssize_t show_alarms(struct fscher_data *data, char *buf, int nr)
-{
- /* bits 2, 5..6 reserved => mask with 0x9b */
- return sprintf(buf, "%u\n", data->global_event & 0x9b);
-}
-
-
-
-static ssize_t set_control(struct i2c_client *client, struct fscher_data *data,
- const char *buf, size_t count, int nr, int reg)
-{
- /* bits 1..7 reserved => mask with 0x01 */
- unsigned long v = simple_strtoul(buf, NULL, 10) & 0x01;
-
- mutex_lock(&data->update_lock);
- data->global_control = v;
- fscher_write_value(client, reg, v);
- mutex_unlock(&data->update_lock);
- return count;
-}
-
-static ssize_t show_control(struct fscher_data *data, char *buf, int nr)
-{
- /* bits 1..7 reserved => mask with 0x01 */
- return sprintf(buf, "%u\n", data->global_control & 0x01);
-}
-
-
-
-static ssize_t set_watchdog_control(struct i2c_client *client, struct
- fscher_data *data, const char *buf, size_t count,
- int nr, int reg)
-{
- /* bits 0..3 reserved => mask with 0xf0 */
- unsigned long v = simple_strtoul(buf, NULL, 10) & 0xf0;
-
- mutex_lock(&data->update_lock);
- data->watchdog[2] &= ~0xf0;
- data->watchdog[2] |= v;
- fscher_write_value(client, reg, data->watchdog[2]);
- mutex_unlock(&data->update_lock);
- return count;
-}
-
-static ssize_t show_watchdog_control(struct fscher_data *data, char *buf, int nr)
-{
- /* bits 0..3 reserved, bit 5 write only => mask with 0xd0 */
- return sprintf(buf, "%u\n", data->watchdog[2] & 0xd0);
-}
-
-static ssize_t set_watchdog_status(struct i2c_client *client, struct fscher_data *data,
- const char *buf, size_t count, int nr, int reg)
-{
- /* bits 0, 2..7 reserved => mask with 0x02 */
- unsigned long v = simple_strtoul(buf, NULL, 10) & 0x02;
-
- mutex_lock(&data->update_lock);
- data->watchdog[1] &= ~v;
- fscher_write_value(client, reg, v);
- mutex_unlock(&data->update_lock);
- return count;
-}
-
-static ssize_t show_watchdog_status(struct fscher_data *data, char *buf, int nr)
-{
- /* bits 0, 2..7 reserved => mask with 0x02 */
- return sprintf(buf, "%u\n", data->watchdog[1] & 0x02);
-}
-
-static ssize_t set_watchdog_preset(struct i2c_client *client, struct fscher_data *data,
- const char *buf, size_t count, int nr, int reg)
-{
- unsigned long v = simple_strtoul(buf, NULL, 10) & 0xff;
-
- mutex_lock(&data->update_lock);
- data->watchdog[0] = v;
- fscher_write_value(client, reg, data->watchdog[0]);
- mutex_unlock(&data->update_lock);
- return count;
-}
-
-static ssize_t show_watchdog_preset(struct fscher_data *data, char *buf, int nr)
-{
- return sprintf(buf, "%u\n", data->watchdog[0]);
-}
-
-static int __init sensors_fscher_init(void)
-{
- return i2c_add_driver(&fscher_driver);
-}
-
-static void __exit sensors_fscher_exit(void)
-{
- i2c_del_driver(&fscher_driver);
-}
-
-MODULE_AUTHOR("Reinhard Nissl <rnissl@gmx.de>");
-MODULE_DESCRIPTION("FSC Hermes driver");
-MODULE_LICENSE("GPL");
-
-module_init(sensors_fscher_init);
-module_exit(sensors_fscher_exit);
+++ /dev/null
-/*
- fscpos.c - Kernel module for hardware monitoring with FSC Poseidon chips
- Copyright (C) 2004, 2005 Stefan Ott <stefan@desire.ch>
-
- 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.
-*/
-
-/*
- fujitsu siemens poseidon chip,
- module based on the old fscpos module by Hermann Jung <hej@odn.de> and
- the fscher module by Reinhard Nissl <rnissl@gmx.de>
-
- original module based on lm80.c
- Copyright (C) 1998, 1999 Frodo Looijaard <frodol@dds.nl>
- and Philip Edelbrock <phil@netroedge.com>
-
- Thanks to Jean Delvare for reviewing my code and suggesting a lot of
- improvements.
-*/
-
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/jiffies.h>
-#include <linux/i2c.h>
-#include <linux/init.h>
-#include <linux/hwmon.h>
-#include <linux/err.h>
-#include <linux/mutex.h>
-#include <linux/sysfs.h>
-
-/*
- * Addresses to scan
- */
-static const unsigned short normal_i2c[] = { 0x73, I2C_CLIENT_END };
-
-/*
- * Insmod parameters
- */
-I2C_CLIENT_INSMOD_1(fscpos);
-
-/*
- * The FSCPOS registers
- */
-
-/* chip identification */
-#define FSCPOS_REG_IDENT_0 0x00
-#define FSCPOS_REG_IDENT_1 0x01
-#define FSCPOS_REG_IDENT_2 0x02
-#define FSCPOS_REG_REVISION 0x03
-
-/* global control and status */
-#define FSCPOS_REG_EVENT_STATE 0x04
-#define FSCPOS_REG_CONTROL 0x05
-
-/* watchdog */
-#define FSCPOS_REG_WDOG_PRESET 0x28
-#define FSCPOS_REG_WDOG_STATE 0x23
-#define FSCPOS_REG_WDOG_CONTROL 0x21
-
-/* voltages */
-#define FSCPOS_REG_VOLT_12 0x45
-#define FSCPOS_REG_VOLT_5 0x42
-#define FSCPOS_REG_VOLT_BATT 0x48
-
-/* fans - the chip does not support minimum speed for fan2 */
-static u8 FSCPOS_REG_PWM[] = { 0x55, 0x65 };
-static u8 FSCPOS_REG_FAN_ACT[] = { 0x0e, 0x6b, 0xab };
-static u8 FSCPOS_REG_FAN_STATE[] = { 0x0d, 0x62, 0xa2 };
-static u8 FSCPOS_REG_FAN_RIPPLE[] = { 0x0f, 0x6f, 0xaf };
-
-/* temperatures */
-static u8 FSCPOS_REG_TEMP_ACT[] = { 0x64, 0x32, 0x35 };
-static u8 FSCPOS_REG_TEMP_STATE[] = { 0x71, 0x81, 0x91 };
-
-/*
- * Functions declaration
- */
-static int fscpos_probe(struct i2c_client *client,
- const struct i2c_device_id *id);
-static int fscpos_detect(struct i2c_client *client, int kind,
- struct i2c_board_info *info);
-static int fscpos_remove(struct i2c_client *client);
-
-static int fscpos_read_value(struct i2c_client *client, u8 reg);
-static int fscpos_write_value(struct i2c_client *client, u8 reg, u8 value);
-static struct fscpos_data *fscpos_update_device(struct device *dev);
-static void fscpos_init_client(struct i2c_client *client);
-
-static void reset_fan_alarm(struct i2c_client *client, int nr);
-
-/*
- * Driver data (common to all clients)
- */
-static const struct i2c_device_id fscpos_id[] = {
- { "fscpos", fscpos },
- { }
-};
-
-static struct i2c_driver fscpos_driver = {
- .class = I2C_CLASS_HWMON,
- .driver = {
- .name = "fscpos",
- },
- .probe = fscpos_probe,
- .remove = fscpos_remove,
- .id_table = fscpos_id,
- .detect = fscpos_detect,
- .address_data = &addr_data,
-};
-
-/*
- * Client data (each client gets its own)
- */
-struct fscpos_data {
- struct device *hwmon_dev;
- struct mutex update_lock;
- char valid; /* 0 until following fields are valid */
- unsigned long last_updated; /* In jiffies */
-
- /* register values */
- u8 revision; /* revision of chip */
- u8 global_event; /* global event status */
- u8 global_control; /* global control register */
- u8 wdog_control; /* watchdog control */
- u8 wdog_state; /* watchdog status */
- u8 wdog_preset; /* watchdog preset */
- u8 volt[3]; /* 12, 5, battery current */
- u8 temp_act[3]; /* temperature */
- u8 temp_status[3]; /* status of sensor */
- u8 fan_act[3]; /* fans revolutions per second */
- u8 fan_status[3]; /* fan status */
- u8 pwm[2]; /* fan min value for rps */
- u8 fan_ripple[3]; /* divider for rps */
-};
-
-/* Temperature */
-#define TEMP_FROM_REG(val) (((val) - 128) * 1000)
-
-static ssize_t show_temp_input(struct fscpos_data *data, char *buf, int nr)
-{
- return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_act[nr - 1]));
-}
-
-static ssize_t show_temp_status(struct fscpos_data *data, char *buf, int nr)
-{
- /* bits 2..7 reserved => mask with 0x03 */
- return sprintf(buf, "%u\n", data->temp_status[nr - 1] & 0x03);
-}
-
-static ssize_t show_temp_reset(struct fscpos_data *data, char *buf, int nr)
-{
- return sprintf(buf, "1\n");
-}
-
-static ssize_t set_temp_reset(struct i2c_client *client, struct fscpos_data
- *data, const char *buf, size_t count, int nr, int reg)
-{
- unsigned long v = simple_strtoul(buf, NULL, 10);
- if (v != 1) {
- dev_err(&client->dev, "temp_reset value %ld not supported. "
- "Use 1 to reset the alarm!\n", v);
- return -EINVAL;
- }
-
- dev_info(&client->dev, "You used the temp_reset feature which has not "
- "been proplerly tested. Please report your "
- "experience to the module author.\n");
-
- /* Supported value: 2 (clears the status) */
- fscpos_write_value(client, FSCPOS_REG_TEMP_STATE[nr - 1], 2);
- return count;
-}
-
-/* Fans */
-#define RPM_FROM_REG(val) ((val) * 60)
-
-static ssize_t show_fan_status(struct fscpos_data *data, char *buf, int nr)
-{
- /* bits 0..1, 3..7 reserved => mask with 0x04 */
- return sprintf(buf, "%u\n", data->fan_status[nr - 1] & 0x04);
-}
-
-static ssize_t show_fan_input(struct fscpos_data *data, char *buf, int nr)
-{
- return sprintf(buf, "%u\n", RPM_FROM_REG(data->fan_act[nr - 1]));
-}
-
-static ssize_t show_fan_ripple(struct fscpos_data *data, char *buf, int nr)
-{
- /* bits 2..7 reserved => mask with 0x03 */
- return sprintf(buf, "%u\n", data->fan_ripple[nr - 1] & 0x03);
-}
-
-static ssize_t set_fan_ripple(struct i2c_client *client, struct fscpos_data
- *data, const char *buf, size_t count, int nr, int reg)
-{
- /* supported values: 2, 4, 8 */
- unsigned long v = simple_strtoul(buf, NULL, 10);
-
- switch (v) {
- case 2: v = 1; break;
- case 4: v = 2; break;
- case 8: v = 3; break;
- default:
- dev_err(&client->dev, "fan_ripple value %ld not supported. "
- "Must be one of 2, 4 or 8!\n", v);
- return -EINVAL;
- }
-
- mutex_lock(&data->update_lock);
- /* bits 2..7 reserved => mask with 0x03 */
- data->fan_ripple[nr - 1] &= ~0x03;
- data->fan_ripple[nr - 1] |= v;
-
- fscpos_write_value(client, reg, data->fan_ripple[nr - 1]);
- mutex_unlock(&data->update_lock);
- return count;
-}
-
-static ssize_t show_pwm(struct fscpos_data *data, char *buf, int nr)
-{
- return sprintf(buf, "%u\n", data->pwm[nr - 1]);
-}
-
-static ssize_t set_pwm(struct i2c_client *client, struct fscpos_data *data,
- const char *buf, size_t count, int nr, int reg)
-{
- unsigned long v = simple_strtoul(buf, NULL, 10);
-
- /* Range: 0..255 */
- if (v < 0) v = 0;
- if (v > 255) v = 255;
-
- mutex_lock(&data->update_lock);
- data->pwm[nr - 1] = v;
- fscpos_write_value(client, reg, data->pwm[nr - 1]);
- mutex_unlock(&data->update_lock);
- return count;
-}
-
-static void reset_fan_alarm(struct i2c_client *client, int nr)
-{
- fscpos_write_value(client, FSCPOS_REG_FAN_STATE[nr], 4);
-}
-
-/* Volts */
-#define VOLT_FROM_REG(val, mult) ((val) * (mult) / 255)
-
-static ssize_t show_volt_12(struct device *dev, struct device_attribute *attr, char *buf)
-{
- struct fscpos_data *data = fscpos_update_device(dev);
- return sprintf(buf, "%u\n", VOLT_FROM_REG(data->volt[0], 14200));
-}
-
-static ssize_t show_volt_5(struct device *dev, struct device_attribute *attr, char *buf)
-{
- struct fscpos_data *data = fscpos_update_device(dev);
- return sprintf(buf, "%u\n", VOLT_FROM_REG(data->volt[1], 6600));
-}
-
-static ssize_t show_volt_batt(struct device *dev, struct device_attribute *attr, char *buf)
-{
- struct fscpos_data *data = fscpos_update_device(dev);
- return sprintf(buf, "%u\n", VOLT_FROM_REG(data->volt[2], 3300));
-}
-
-/* Watchdog */
-static ssize_t show_wdog_control(struct fscpos_data *data, char *buf)
-{
- /* bits 0..3 reserved, bit 6 write only => mask with 0xb0 */
- return sprintf(buf, "%u\n", data->wdog_control & 0xb0);
-}
-
-static ssize_t set_wdog_control(struct i2c_client *client, struct fscpos_data
- *data, const char *buf, size_t count, int reg)
-{
- /* bits 0..3 reserved => mask with 0xf0 */
- unsigned long v = simple_strtoul(buf, NULL, 10) & 0xf0;
-
- mutex_lock(&data->update_lock);
- data->wdog_control &= ~0xf0;
- data->wdog_control |= v;
- fscpos_write_value(client, reg, data->wdog_control);
- mutex_unlock(&data->update_lock);
- return count;
-}
-
-static ssize_t show_wdog_state(struct fscpos_data *data, char *buf)
-{
- /* bits 0, 2..7 reserved => mask with 0x02 */
- return sprintf(buf, "%u\n", data->wdog_state & 0x02);
-}
-
-static ssize_t set_wdog_state(struct i2c_client *client, struct fscpos_data
- *data, const char *buf, size_t count, int reg)
-{
- unsigned long v = simple_strtoul(buf, NULL, 10) & 0x02;
-
- /* Valid values: 2 (clear) */
- if (v != 2) {
- dev_err(&client->dev, "wdog_state value %ld not supported. "
- "Must be 2 to clear the state!\n", v);
- return -EINVAL;
- }
-
- mutex_lock(&data->update_lock);
- data->wdog_state &= ~v;
- fscpos_write_value(client, reg, v);
- mutex_unlock(&data->update_lock);
- return count;
-}
-
-static ssize_t show_wdog_preset(struct fscpos_data *data, char *buf)
-{
- return sprintf(buf, "%u\n", data->wdog_preset);
-}
-
-static ssize_t set_wdog_preset(struct i2c_client *client, struct fscpos_data
- *data, const char *buf, size_t count, int reg)
-{
- unsigned long v = simple_strtoul(buf, NULL, 10) & 0xff;
-
- mutex_lock(&data->update_lock);
- data->wdog_preset = v;
- fscpos_write_value(client, reg, data->wdog_preset);
- mutex_unlock(&data->update_lock);
- return count;
-}
-
-/* Event */
-static ssize_t show_event(struct device *dev, struct device_attribute *attr, char *buf)
-{
- /* bits 5..7 reserved => mask with 0x1f */
- struct fscpos_data *data = fscpos_update_device(dev);
- return sprintf(buf, "%u\n", data->global_event & 0x9b);
-}
-
-/*
- * Sysfs stuff
- */
-#define create_getter(kind, sub) \
- static ssize_t sysfs_show_##kind##sub(struct device *dev, struct device_attribute *attr, char *buf) \
- { \
- struct fscpos_data *data = fscpos_update_device(dev); \
- return show_##kind##sub(data, buf); \
- }
-
-#define create_getter_n(kind, offset, sub) \
- static ssize_t sysfs_show_##kind##offset##sub(struct device *dev, struct device_attribute *attr, char\
- *buf) \
- { \
- struct fscpos_data *data = fscpos_update_device(dev); \
- return show_##kind##sub(data, buf, offset); \
- }
-
-#define create_setter(kind, sub, reg) \
- static ssize_t sysfs_set_##kind##sub (struct device *dev, struct device_attribute *attr, const char \
- *buf, size_t count) \
- { \
- struct i2c_client *client = to_i2c_client(dev); \
- struct fscpos_data *data = i2c_get_clientdata(client); \
- return set_##kind##sub(client, data, buf, count, reg); \
- }
-
-#define create_setter_n(kind, offset, sub, reg) \
- static ssize_t sysfs_set_##kind##offset##sub (struct device *dev, struct device_attribute *attr, \
- const char *buf, size_t count) \
- { \
- struct i2c_client *client = to_i2c_client(dev); \
- struct fscpos_data *data = i2c_get_clientdata(client); \
- return set_##kind##sub(client, data, buf, count, offset, reg);\
- }
-
-#define create_sysfs_device_ro(kind, sub, offset) \
- static DEVICE_ATTR(kind##offset##sub, S_IRUGO, \
- sysfs_show_##kind##offset##sub, NULL);
-
-#define create_sysfs_device_rw(kind, sub, offset) \
- static DEVICE_ATTR(kind##offset##sub, S_IRUGO | S_IWUSR, \
- sysfs_show_##kind##offset##sub, sysfs_set_##kind##offset##sub);
-
-#define sysfs_ro_n(kind, sub, offset) \
- create_getter_n(kind, offset, sub); \
- create_sysfs_device_ro(kind, sub, offset);
-
-#define sysfs_rw_n(kind, sub, offset, reg) \
- create_getter_n(kind, offset, sub); \
- create_setter_n(kind, offset, sub, reg); \
- create_sysfs_device_rw(kind, sub, offset);
-
-#define sysfs_rw(kind, sub, reg) \
- create_getter(kind, sub); \
- create_setter(kind, sub, reg); \
- create_sysfs_device_rw(kind, sub,);
-
-#define sysfs_fan_with_min(offset, reg_status, reg_ripple, reg_min) \
- sysfs_fan(offset, reg_status, reg_ripple); \
- sysfs_rw_n(pwm,, offset, reg_min);
-
-#define sysfs_fan(offset, reg_status, reg_ripple) \
- sysfs_ro_n(fan, _input, offset); \
- sysfs_ro_n(fan, _status, offset); \
- sysfs_rw_n(fan, _ripple, offset, reg_ripple);
-
-#define sysfs_temp(offset, reg_status) \
- sysfs_ro_n(temp, _input, offset); \
- sysfs_ro_n(temp, _status, offset); \
- sysfs_rw_n(temp, _reset, offset, reg_status);
-
-#define sysfs_watchdog(reg_wdog_preset, reg_wdog_state, reg_wdog_control) \
- sysfs_rw(wdog, _control, reg_wdog_control); \
- sysfs_rw(wdog, _preset, reg_wdog_preset); \
- sysfs_rw(wdog, _state, reg_wdog_state);
-
-sysfs_fan_with_min(1, FSCPOS_REG_FAN_STATE[0], FSCPOS_REG_FAN_RIPPLE[0],
- FSCPOS_REG_PWM[0]);
-sysfs_fan_with_min(2, FSCPOS_REG_FAN_STATE[1], FSCPOS_REG_FAN_RIPPLE[1],
- FSCPOS_REG_PWM[1]);
-sysfs_fan(3, FSCPOS_REG_FAN_STATE[2], FSCPOS_REG_FAN_RIPPLE[2]);
-
-sysfs_temp(1, FSCPOS_REG_TEMP_STATE[0]);
-sysfs_temp(2, FSCPOS_REG_TEMP_STATE[1]);
-sysfs_temp(3, FSCPOS_REG_TEMP_STATE[2]);
-
-sysfs_watchdog(FSCPOS_REG_WDOG_PRESET, FSCPOS_REG_WDOG_STATE,
- FSCPOS_REG_WDOG_CONTROL);
-
-static DEVICE_ATTR(event, S_IRUGO, show_event, NULL);
-static DEVICE_ATTR(in0_input, S_IRUGO, show_volt_12, NULL);
-static DEVICE_ATTR(in1_input, S_IRUGO, show_volt_5, NULL);
-static DEVICE_ATTR(in2_input, S_IRUGO, show_volt_batt, NULL);
-
-static struct attribute *fscpos_attributes[] = {
- &dev_attr_event.attr,
- &dev_attr_in0_input.attr,
- &dev_attr_in1_input.attr,
- &dev_attr_in2_input.attr,
-
- &dev_attr_wdog_control.attr,
- &dev_attr_wdog_preset.attr,
- &dev_attr_wdog_state.attr,
-
- &dev_attr_temp1_input.attr,
- &dev_attr_temp1_status.attr,
- &dev_attr_temp1_reset.attr,
- &dev_attr_temp2_input.attr,
- &dev_attr_temp2_status.attr,
- &dev_attr_temp2_reset.attr,
- &dev_attr_temp3_input.attr,
- &dev_attr_temp3_status.attr,
- &dev_attr_temp3_reset.attr,
-
- &dev_attr_fan1_input.attr,
- &dev_attr_fan1_status.attr,
- &dev_attr_fan1_ripple.attr,
- &dev_attr_pwm1.attr,
- &dev_attr_fan2_input.attr,
- &dev_attr_fan2_status.attr,
- &dev_attr_fan2_ripple.attr,
- &dev_attr_pwm2.attr,
- &dev_attr_fan3_input.attr,
- &dev_attr_fan3_status.attr,
- &dev_attr_fan3_ripple.attr,
- NULL
-};
-
-static const struct attribute_group fscpos_group = {
- .attrs = fscpos_attributes,
-};
-
-/* Return 0 if detection is successful, -ENODEV otherwise */
-static int fscpos_detect(struct i2c_client *new_client, int kind,
- struct i2c_board_info *info)
-{
- struct i2c_adapter *adapter = new_client->adapter;
-
- if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
- return -ENODEV;
-
- /* Do the remaining detection unless force or force_fscpos parameter */
- if (kind < 0) {
- if ((fscpos_read_value(new_client, FSCPOS_REG_IDENT_0)
- != 0x50) /* 'P' */
- || (fscpos_read_value(new_client, FSCPOS_REG_IDENT_1)
- != 0x45) /* 'E' */
- || (fscpos_read_value(new_client, FSCPOS_REG_IDENT_2)
- != 0x47))/* 'G' */
- return -ENODEV;
- }
-
- strlcpy(info->type, "fscpos", I2C_NAME_SIZE);
-
- return 0;
-}
-
-static int fscpos_probe(struct i2c_client *new_client,
- const struct i2c_device_id *id)
-{
- struct fscpos_data *data;
- int err;
-
- data = kzalloc(sizeof(struct fscpos_data), GFP_KERNEL);
- if (!data) {
- err = -ENOMEM;
- goto exit;
- }
-
- i2c_set_clientdata(new_client, data);
- data->valid = 0;
- mutex_init(&data->update_lock);
-
- /* Inizialize the fscpos chip */
- fscpos_init_client(new_client);
-
- /* Announce that the chip was found */
- dev_info(&new_client->dev, "Found fscpos chip, rev %u\n", data->revision);
-
- /* Register sysfs hooks */
- if ((err = sysfs_create_group(&new_client->dev.kobj, &fscpos_group)))
- goto exit_free;
-
- data->hwmon_dev = hwmon_device_register(&new_client->dev);
- if (IS_ERR(data->hwmon_dev)) {
- err = PTR_ERR(data->hwmon_dev);
- goto exit_remove_files;
- }
-
- return 0;
-
-exit_remove_files:
- sysfs_remove_group(&new_client->dev.kobj, &fscpos_group);
-exit_free:
- kfree(data);
-exit:
- return err;
-}
-
-static int fscpos_remove(struct i2c_client *client)
-{
- struct fscpos_data *data = i2c_get_clientdata(client);
-
- hwmon_device_unregister(data->hwmon_dev);
- sysfs_remove_group(&client->dev.kobj, &fscpos_group);
-
- kfree(data);
- return 0;
-}
-
-static int fscpos_read_value(struct i2c_client *client, u8 reg)
-{
- dev_dbg(&client->dev, "Read reg 0x%02x\n", reg);
- return i2c_smbus_read_byte_data(client, reg);
-}
-
-static int fscpos_write_value(struct i2c_client *client, u8 reg, u8 value)
-{
- dev_dbg(&client->dev, "Write reg 0x%02x, val 0x%02x\n", reg, value);
- return i2c_smbus_write_byte_data(client, reg, value);
-}
-
-/* Called when we have found a new FSCPOS chip */
-static void fscpos_init_client(struct i2c_client *client)
-{
- struct fscpos_data *data = i2c_get_clientdata(client);
-
- /* read revision from chip */
- data->revision = fscpos_read_value(client, FSCPOS_REG_REVISION);
-}
-
-static struct fscpos_data *fscpos_update_device(struct device *dev)
-{
- struct i2c_client *client = to_i2c_client(dev);
- struct fscpos_data *data = i2c_get_clientdata(client);
-
- mutex_lock(&data->update_lock);
-
- if (time_after(jiffies, data->last_updated + 2 * HZ) || !data->valid) {
- int i;
-
- dev_dbg(&client->dev, "Starting fscpos update\n");
-
- for (i = 0; i < 3; i++) {
- data->temp_act[i] = fscpos_read_value(client,
- FSCPOS_REG_TEMP_ACT[i]);
- data->temp_status[i] = fscpos_read_value(client,
- FSCPOS_REG_TEMP_STATE[i]);
- data->fan_act[i] = fscpos_read_value(client,
- FSCPOS_REG_FAN_ACT[i]);
- data->fan_status[i] = fscpos_read_value(client,
- FSCPOS_REG_FAN_STATE[i]);
- data->fan_ripple[i] = fscpos_read_value(client,
- FSCPOS_REG_FAN_RIPPLE[i]);
- if (i < 2) {
- /* fan2_min is not supported by the chip */
- data->pwm[i] = fscpos_read_value(client,
- FSCPOS_REG_PWM[i]);
- }
- /* reset fan status if speed is back to > 0 */
- if (data->fan_status[i] != 0 && data->fan_act[i] > 0) {
- reset_fan_alarm(client, i);
- }
- }
-
- data->volt[0] = fscpos_read_value(client, FSCPOS_REG_VOLT_12);
- data->volt[1] = fscpos_read_value(client, FSCPOS_REG_VOLT_5);
- data->volt[2] = fscpos_read_value(client, FSCPOS_REG_VOLT_BATT);
-
- data->wdog_preset = fscpos_read_value(client,
- FSCPOS_REG_WDOG_PRESET);
- data->wdog_state = fscpos_read_value(client,
- FSCPOS_REG_WDOG_STATE);
- data->wdog_control = fscpos_read_value(client,
- FSCPOS_REG_WDOG_CONTROL);
-
- data->global_event = fscpos_read_value(client,
- FSCPOS_REG_EVENT_STATE);
-
- data->last_updated = jiffies;
- data->valid = 1;
- }
- mutex_unlock(&data->update_lock);
- return data;
-}
-
-static int __init sm_fscpos_init(void)
-{
- return i2c_add_driver(&fscpos_driver);
-}
-
-static void __exit sm_fscpos_exit(void)
-{
- i2c_del_driver(&fscpos_driver);
-}
-
-MODULE_AUTHOR("Stefan Ott <stefan@desire.ch> based on work from Hermann Jung "
- "<hej@odn.de>, Frodo Looijaard <frodol@dds.nl>"
- " and Philip Edelbrock <phil@netroedge.com>");
-MODULE_DESCRIPTION("fujitsu siemens poseidon chip driver");
-MODULE_LICENSE("GPL");
-
-module_init(sm_fscpos_init);
-module_exit(sm_fscpos_exit);
mutex_init(&data->update_lock);
/* Initialize the LTC4215 chip */
- /* TODO */
+ i2c_smbus_write_byte_data(client, LTC4215_FAULT, 0x00);
/* Register sysfs hooks */
ret = sysfs_create_group(&client->dev.kobj, <c4215_group);
mutex_init(&data->update_lock);
/* Initialize the LTC4245 chip */
- /* TODO */
+ i2c_smbus_write_byte_data(client, LTC4245_FAULT1, 0x00);
+ i2c_smbus_write_byte_data(client, LTC4245_FAULT2, 0x00);
/* Register sysfs hooks */
ret = sysfs_create_group(&client->dev.kobj, <c4245_group);
Code Review / linux-2.6.git / commitdiff