diff options
| -rw-r--r-- | Documentation/hwmon/emc2103 | 33 | ||||
| -rw-r--r-- | Documentation/hwmon/ltc4245 | 24 | ||||
| -rw-r--r-- | Documentation/hwmon/pc87427 | 27 | ||||
| -rw-r--r-- | Documentation/hwmon/sysfs-interface | 29 | ||||
| -rw-r--r-- | Documentation/hwmon/w83627ehf | 15 | ||||
| -rw-r--r-- | MAINTAINERS | 14 | ||||
| -rw-r--r-- | drivers/hwmon/Kconfig | 14 | ||||
| -rw-r--r-- | drivers/hwmon/Makefile | 1 | ||||
| -rw-r--r-- | drivers/hwmon/asc7621.c | 9 | ||||
| -rw-r--r-- | drivers/hwmon/emc1403.c | 33 | ||||
| -rw-r--r-- | drivers/hwmon/emc2103.c | 740 | ||||
| -rw-r--r-- | drivers/hwmon/it87.c | 46 | ||||
| -rw-r--r-- | drivers/hwmon/k8temp.c | 3 | ||||
| -rw-r--r-- | drivers/hwmon/lm75.c | 39 | ||||
| -rw-r--r-- | drivers/hwmon/lm75.h | 1 | ||||
| -rw-r--r-- | drivers/hwmon/ltc4245.c | 177 | ||||
| -rw-r--r-- | drivers/hwmon/pc87360.c | 31 | ||||
| -rw-r--r-- | drivers/hwmon/pc87427.c | 862 | ||||
| -rw-r--r-- | drivers/hwmon/via-cputemp.c | 2 | ||||
| -rw-r--r-- | drivers/hwmon/w83627ehf.c | 97 | ||||
| -rw-r--r-- | include/linux/i2c/ltc4245.h | 21 |
21 files changed, 2085 insertions, 133 deletions
diff --git a/Documentation/hwmon/emc2103 b/Documentation/hwmon/emc2103 new file mode 100644 index 0000000..a12b2c12 --- /dev/null +++ b/Documentation/hwmon/emc2103 @@ -0,0 +1,33 @@ +Kernel driver emc2103 +====================== + +Supported chips: + * SMSC EMC2103 + Addresses scanned: I2C 0x2e + Prefix: 'emc2103' + Datasheet: Not public + +Authors: + Steve Glendinning <steve.glendinning@smsc.com> + +Description +----------- + +The Standard Microsystems Corporation (SMSC) EMC2103 chips +contain up to 4 temperature sensors and a single fan controller. + +Fan rotation speeds are reported in RPM (rotations per minute). An alarm is +triggered if the rotation speed has dropped below a programmable limit. Fan +readings can be divided by a programmable divider (1, 2, 4 or 8) to give +the readings more range or accuracy. Not all RPM values can accurately be +represented, so some rounding is done. With a divider of 1, the lowest +representable value is 480 RPM. + +This driver supports RPM based control, to use this a fan target +should be written to fan1_target and pwm1_enable should be set to 3. + +The 2103-2 and 2103-4 variants have a third temperature sensor, which can +be connected to two anti-parallel diodes. These values can be read +as temp3 and temp4. If only one diode is attached to this channel, temp4 +will show as "fault". The module parameter "apd=0" can be used to suppress +this 4th channel when anti-parallel diodes are not fitted. diff --git a/Documentation/hwmon/ltc4245 b/Documentation/hwmon/ltc4245 index 86b5880..b478b08 100644 --- a/Documentation/hwmon/ltc4245 +++ b/Documentation/hwmon/ltc4245 @@ -72,9 +72,31 @@ in6_min_alarm 5v output undervoltage alarm in7_min_alarm 3v output undervoltage alarm in8_min_alarm Vee (-12v) output undervoltage alarm -in9_input GPIO voltage data +in9_input GPIO voltage data (see note 1) +in10_input GPIO voltage data (see note 1) +in11_input GPIO voltage data (see note 1) power1_input 12v power usage (mW) power2_input 5v power usage (mW) power3_input 3v power usage (mW) power4_input Vee (-12v) power usage (mW) + + +Note 1 +------ + +If you have NOT configured the driver to sample all GPIO pins as analog +voltages, then the in10_input and in11_input sysfs attributes will not be +created. The driver will sample the GPIO pin that is currently connected to the +ADC as an analog voltage, and report the value in in9_input. + +If you have configured the driver to sample all GPIO pins as analog voltages, +then they will be sampled in round-robin fashion. If userspace reads too +slowly, -EAGAIN will be returned when you read the sysfs attribute containing +the sensor reading. + +The LTC4245 chip can be configured to sample all GPIO pins with two methods: +1) platform data -- see include/linux/i2c/ltc4245.h +2) OF device tree -- add the "ltc4245,use-extra-gpios" property to each chip + +The default mode of operation is to sample a single GPIO pin. diff --git a/Documentation/hwmon/pc87427 b/Documentation/hwmon/pc87427 index db5cc12..8fdd08c 100644 --- a/Documentation/hwmon/pc87427 +++ b/Documentation/hwmon/pc87427 @@ -18,10 +18,11 @@ Description The National Semiconductor Super I/O chip includes complete hardware monitoring capabilities. It can monitor up to 18 voltages, 8 fans and -6 temperature sensors. Only the fans are supported at the moment. +6 temperature sensors. Only the fans and temperatures are supported at +the moment, voltages aren't. -This chip also has fan controlling features, which are not yet supported -by this driver either. +This chip also has fan controlling features (up to 4 PWM outputs), +which are partly supported by this driver. The driver assumes that no more than one chip is present, which seems reasonable. @@ -36,3 +37,23 @@ signal. Speeds down to 83 RPM can be measured. An alarm is triggered if the rotation speed drops below a programmable limit. Another alarm is triggered if the speed is too low to be measured (including stalled or missing fan). + + +Fan Speed Control +----------------- + +Fan speed can be controlled by PWM outputs. There are 4 possible modes: +always off, always on, manual and automatic. The latter isn't supported +by the driver: you can only return to that mode if it was the original +setting, and the configuration interface is missing. + + +Temperature Monitoring +---------------------- + +The PC87427 relies on external sensors (following the SensorPath +standard), so the resolution and range depend on the type of sensor +connected. The integer part can be 8-bit or 9-bit, and can be signed or +not. I couldn't find a way to figure out the external sensor data +temperature format, so user-space adjustment (typically by a factor 2) +may be required. diff --git a/Documentation/hwmon/sysfs-interface b/Documentation/hwmon/sysfs-interface index d4e2917..ff45d1f 100644 --- a/Documentation/hwmon/sysfs-interface +++ b/Documentation/hwmon/sysfs-interface @@ -107,10 +107,24 @@ in[0-*]_min Voltage min value. Unit: millivolt RW +in[0-*]_lcrit Voltage critical min value. + Unit: millivolt + RW + If voltage drops to or below this limit, the system may + take drastic action such as power down or reset. At the very + least, it should report a fault. + in[0-*]_max Voltage max value. Unit: millivolt RW +in[0-*]_crit Voltage critical max value. + Unit: millivolt + RW + If voltage reaches or exceeds this limit, the system may + take drastic action such as power down or reset. At the very + least, it should report a fault. + in[0-*]_input Voltage input value. Unit: millivolt RO @@ -284,7 +298,7 @@ temp[1-*]_input Temperature input value. Unit: millidegree Celsius RO -temp[1-*]_crit Temperature critical value, typically greater than +temp[1-*]_crit Temperature critical max value, typically greater than corresponding temp_max values. Unit: millidegree Celsius RW @@ -296,6 +310,11 @@ temp[1-*]_crit_hyst from the critical value. RW +temp[1-*]_lcrit Temperature critical min value, typically lower than + corresponding temp_min values. + Unit: millidegree Celsius + RW + temp[1-*]_offset Temperature offset which is added to the temperature reading by the chip. @@ -344,9 +363,6 @@ Also see the Alarms section for status flags associated with temperatures. * Currents * ************ -Note that no known chip provides current measurements as of writing, -so this part is theoretical, so to say. - curr[1-*]_max Current max value Unit: milliampere RW @@ -471,6 +487,7 @@ limit-related alarms, not both. The driver should just reflect the hardware implementation. in[0-*]_alarm +curr[1-*]_alarm fan[1-*]_alarm temp[1-*]_alarm Channel alarm @@ -482,6 +499,8 @@ OR in[0-*]_min_alarm in[0-*]_max_alarm +curr[1-*]_min_alarm +curr[1-*]_max_alarm fan[1-*]_min_alarm fan[1-*]_max_alarm temp[1-*]_min_alarm @@ -497,7 +516,6 @@ to notify open diodes, unconnected fans etc. where the hardware supports it. When this boolean has value 1, the measurement for that channel should not be trusted. -in[0-*]_fault fan[1-*]_fault temp[1-*]_fault Input fault condition @@ -513,6 +531,7 @@ beep_enable Master beep enable RW in[0-*]_beep +curr[1-*]_beep fan[1-*]_beep temp[1-*]_beep Channel beep diff --git a/Documentation/hwmon/w83627ehf b/Documentation/hwmon/w83627ehf index b7e42ec..13d5561 100644 --- a/Documentation/hwmon/w83627ehf +++ b/Documentation/hwmon/w83627ehf @@ -20,6 +20,10 @@ Supported chips: Prefix: 'w83667hg' Addresses scanned: ISA address retrieved from Super I/O registers Datasheet: not available + * Winbond W83667HG-B + Prefix: 'w83667hg' + Addresses scanned: ISA address retrieved from Super I/O registers + Datasheet: Available from Nuvoton upon request Authors: Jean Delvare <khali@linux-fr.org> @@ -32,8 +36,8 @@ Description ----------- This driver implements support for the Winbond W83627EHF, W83627EHG, -W83627DHG, W83627DHG-P and W83667HG super I/O chips. We will refer to them -collectively as Winbond chips. +W83627DHG, W83627DHG-P, W83667HG and W83667HG-B super I/O chips. +We will refer to them collectively as Winbond chips. The chips implement three temperature sensors, five fan rotation speed sensors, ten analog voltage sensors (only nine for the 627DHG), one @@ -68,14 +72,15 @@ follows: temp1 -> pwm1 temp2 -> pwm2 temp3 -> pwm3 -prog -> pwm4 (not on 667HG; the programmable setting is not supported by - the driver) +prog -> pwm4 (not on 667HG and 667HG-B; the programmable setting is not + supported by the driver) /sys files ---------- name - this is a standard hwmon device entry. For the W83627EHF and W83627EHG, - it is set to "w83627ehf" and for the W83627DHG it is set to "w83627dhg" + it is set to "w83627ehf", for the W83627DHG it is set to "w83627dhg", + and for the W83667HG it is set to "w83667hg". pwm[1-4] - this file stores PWM duty cycle or DC value (fan speed) in range: 0 (stop) to 255 (full) diff --git a/MAINTAINERS b/MAINTAINERS index 39d8c5c..99b6f82 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -4402,6 +4402,13 @@ M: Jim Cromie <jim.cromie@gmail.com> S: Maintained F: drivers/char/pc8736x_gpio.c +PC87427 HARDWARE MONITORING DRIVER +M: Jean Delvare <khali@linux-fr.org> +L: lm-sensors@lm-sensors.org +S: Maintained +F: Documentation/hwmon/pc87427 +F: drivers/hwmon/pc87427.c + PCA9532 LED DRIVER M: Riku Voipio <riku.voipio@iki.fi> S: Maintained @@ -5279,6 +5286,13 @@ S: Maintained F: Documentation/hwmon/smm665 F: drivers/hwmon/smm665.c +SMSC EMC2103 HARDWARE MONITOR DRIVER +M: Steve Glendinning <steve.glendinning@smsc.com> +L: lm-sensors@lm-sensors.org +S: Supported +F: Documentation/hwmon/emc2103 +F: drivers/hwmon/emc2103.c + SMSC47B397 HARDWARE MONITOR DRIVER M: "Mark M. Hoffman" <mhoffman@lightlink.com> L: lm-sensors@lm-sensors.org diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig index f3adf18..0fba829 100644 --- a/drivers/hwmon/Kconfig +++ b/drivers/hwmon/Kconfig @@ -465,6 +465,7 @@ config SENSORS_JZ4740 config SENSORS_JC42 tristate "JEDEC JC42.4 compliant temperature sensors" + depends on I2C help If you say yes here you get support for Jedec JC42.4 compliant temperature sensors. Support will include, but not be limited to, @@ -711,7 +712,8 @@ config SENSORS_PC87427 functions of the National Semiconductor PC87427 Super-I/O chip. The chip has two distinct logical devices, one for fan speed monitoring and control, and one for voltage and temperature - monitoring. Only fan speed monitoring is supported right now. + monitoring. Fan speed monitoring and control are supported, as + well as temperature monitoring. Voltages aren't supported yet. This driver can also be built as a module. If so, the module will be called pc87427. @@ -804,6 +806,16 @@ config SENSORS_EMC1403 Threshold values can be configured using sysfs. Data from the different diodes are accessible via sysfs. +config SENSORS_EMC2103 + tristate "SMSC EMC2103" + depends on I2C + help + If you say yes here you get support for the temperature + and fan sensors of the SMSC EMC2103 chips. + + This driver can also be built as a module. If so, the module + will be called emc2103. + config SENSORS_SMSC47M1 tristate "SMSC LPC47M10x and compatibles" help diff --git a/drivers/hwmon/Makefile b/drivers/hwmon/Makefile index 13d913e..e3c2484 100644 --- a/drivers/hwmon/Makefile +++ b/drivers/hwmon/Makefile @@ -43,6 +43,7 @@ obj-$(CONFIG_SENSORS_PKGTEMP) += pkgtemp.o obj-$(CONFIG_SENSORS_DME1737) += dme1737.o obj-$(CONFIG_SENSORS_DS1621) += ds1621.o obj-$(CONFIG_SENSORS_EMC1403) += emc1403.o +obj-$(CONFIG_SENSORS_EMC2103) += emc2103.o obj-$(CONFIG_SENSORS_F71805F) += f71805f.o obj-$(CONFIG_SENSORS_F71882FG) += f71882fg.o obj-$(CONFIG_SENSORS_F75375S) += f75375s.o diff --git a/drivers/hwmon/asc7621.c b/drivers/hwmon/asc7621.c index 3b973f3..89b4f3b 100644 --- a/drivers/hwmon/asc7621.c +++ b/drivers/hwmon/asc7621.c @@ -1150,9 +1150,6 @@ static int asc7621_detect(struct i2c_client *client, { struct i2c_adapter *adapter = client->adapter; int company, verstep, chip_index; - struct device *dev; - - dev = &client->dev; if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) return -ENODEV; @@ -1169,13 +1166,11 @@ static int asc7621_detect(struct i2c_client *client, if (company == asc7621_chips[chip_index].company_id && verstep == asc7621_chips[chip_index].verstep_id) { - strlcpy(client->name, asc7621_chips[chip_index].name, - I2C_NAME_SIZE); strlcpy(info->type, asc7621_chips[chip_index].name, I2C_NAME_SIZE); - dev_info(&adapter->dev, "Matched %s\n", - asc7621_chips[chip_index].name); + dev_info(&adapter->dev, "Matched %s at 0x%02x\n", + asc7621_chips[chip_index].name, client->addr); return 0; } } diff --git a/drivers/hwmon/emc1403.c b/drivers/hwmon/emc1403.c index 0e4b564..5b58b20 100644 --- a/drivers/hwmon/emc1403.c +++ b/drivers/hwmon/emc1403.c @@ -89,6 +89,35 @@ static ssize_t store_temp(struct device *dev, return count; } +static ssize_t store_bit(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count) +{ + struct i2c_client *client = to_i2c_client(dev); + struct thermal_data *data = i2c_get_clientdata(client); + struct sensor_device_attribute_2 *sda = to_sensor_dev_attr_2(attr); + unsigned long val; + int retval; + + if (strict_strtoul(buf, 10, &val)) + return -EINVAL; + + mutex_lock(&data->mutex); + retval = i2c_smbus_read_byte_data(client, sda->nr); + if (retval < 0) + goto fail; + + retval &= ~sda->index; + if (val) + retval |= sda->index; + + retval = i2c_smbus_write_byte_data(client, sda->index, retval); + if (retval == 0) + retval = count; +fail: + mutex_unlock(&data->mutex); + return retval; +} + static ssize_t show_hyst(struct device *dev, struct device_attribute *attr, char *buf) { @@ -200,6 +229,9 @@ static SENSOR_DEVICE_ATTR_2(temp3_crit_alarm, S_IRUGO, static SENSOR_DEVICE_ATTR(temp3_crit_hyst, S_IRUGO | S_IWUSR, show_hyst, store_hyst, 0x1A); +static SENSOR_DEVICE_ATTR_2(power_state, S_IRUGO | S_IWUSR, + show_bit, store_bit, 0x03, 0x40); + static struct attribute *mid_att_thermal[] = { &sensor_dev_attr_temp1_min.dev_attr.attr, &sensor_dev_attr_temp1_max.dev_attr.attr, @@ -225,6 +257,7 @@ static struct attribute *mid_att_thermal[] = { &sensor_dev_attr_temp3_max_alarm.dev_attr.attr, &sensor_dev_attr_temp3_crit_alarm.dev_attr.attr, &sensor_dev_attr_temp3_crit_hyst.dev_attr.attr, + &sensor_dev_attr_power_state.dev_attr.attr, NULL }; diff --git a/drivers/hwmon/emc2103.c b/drivers/hwmon/emc2103.c new file mode 100644 index 0000000..af914ad --- /dev/null +++ b/drivers/hwmon/emc2103.c @@ -0,0 +1,740 @@ +/* + emc2103.c - Support for SMSC EMC2103 + Copyright (c) 2010 SMSC + + 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/i2c.h> +#include <linux/hwmon.h> +#include <linux/hwmon-sysfs.h> +#include <linux/err.h> +#include <linux/mutex.h> + +/* Addresses scanned */ +static const unsigned short normal_i2c[] = { 0x2E, I2C_CLIENT_END }; + +static const u8 REG_TEMP[4] = { 0x00, 0x02, 0x04, 0x06 }; +static const u8 REG_TEMP_MIN[4] = { 0x3c, 0x38, 0x39, 0x3a }; +static const u8 REG_TEMP_MAX[4] = { 0x34, 0x30, 0x31, 0x32 }; + +#define REG_CONF1 0x20 +#define REG_TEMP_MAX_ALARM 0x24 +#define REG_TEMP_MIN_ALARM 0x25 +#define REG_FAN_CONF1 0x42 +#define REG_FAN_TARGET_LO 0x4c +#define REG_FAN_TARGET_HI 0x4d +#define REG_FAN_TACH_HI 0x4e +#define REG_FAN_TACH_LO 0x4f +#define REG_PRODUCT_ID 0xfd +#define REG_MFG_ID 0xfe + +/* equation 4 from datasheet: rpm = (3932160 * multipler) / count */ +#define FAN_RPM_FACTOR 3932160 + +/* 2103-2 and 2103-4's 3rd temperature sensor can be connected to two diodes + * in anti-parallel mode, and in this configuration both can be read + * independently (so we have 4 temperature inputs). The device can't + * detect if it's connected in this mode, so we have to manually enable + * it. Default is to leave the device in the state it's already in (-1). + * This parameter allows APD mode to be optionally forced on or off */ +static int apd = -1; +module_param(apd, bool, 0); +MODULE_PARM_DESC(init, "Set to zero to disable anti-parallel diode mode"); + +struct temperature { + s8 degrees; + u8 fraction; /* 0-7 multiples of 0.125 */ +}; + +struct emc2103_data { + struct device *hwmon_dev; + struct mutex update_lock; + bool valid; /* registers are valid */ + bool fan_rpm_control; + int temp_count; /* num of temp sensors */ + unsigned long last_updated; /* in jiffies */ + struct temperature temp[4]; /* internal + 3 external */ + s8 temp_min[4]; /* no fractional part */ + s8 temp_max[4]; /* no fractional part */ + u8 temp_min_alarm; + u8 temp_max_alarm; + u8 fan_multiplier; + u16 fan_tach; + u16 fan_target; +}; + +static int read_u8_from_i2c(struct i2c_client *client, u8 i2c_reg, u8 *output) +{ + int status = i2c_smbus_read_byte_data(client, i2c_reg); + if (status < 0) { + dev_warn(&client->dev, "reg 0x%02x, err %d\n", + i2c_reg, status); + } else { + *output = status; + } + return status; +} + +static void read_temp_from_i2c(struct i2c_client *client, u8 i2c_reg, + struct temperature *temp) +{ + u8 degrees, fractional; + + if (read_u8_from_i2c(client, i2c_reg, °rees) < 0) + return; + + if (read_u8_from_i2c(client, i2c_reg + 1, &fractional) < 0) + return; + + temp->degrees = degrees; + temp->fraction = (fractional & 0xe0) >> 5; +} + +static void read_fan_from_i2c(struct i2c_client *client, u16 *output, + u8 hi_addr, u8 lo_addr) +{ + u8 high_byte, lo_byte; + + if (read_u8_from_i2c(client, hi_addr, &high_byte) < 0) + return; + + if (read_u8_from_i2c(client, lo_addr, &lo_byte) < 0) + return; + + *output = ((u16)high_byte << 5) | (lo_byte >> 3); +} + +static void write_fan_target_to_i2c(struct i2c_client *client, u16 new_target) +{ + u8 high_byte = (new_target & 0x1fe0) >> 5; + u8 low_byte = (new_target & 0x001f) << 3; + i2c_smbus_write_byte_data(client, REG_FAN_TARGET_LO, low_byte); + i2c_smbus_write_byte_data(client, REG_FAN_TARGET_HI, high_byte); +} + +static void read_fan_config_from_i2c(struct i2c_client *client) + +{ + struct emc2103_data *data = i2c_get_clientdata(client); + u8 conf1; + + if (read_u8_from_i2c(client, REG_FAN_CONF1, &conf1) < 0) + return; + + data->fan_multiplier = 1 << ((conf1 & 0x60) >> 5); + data->fan_rpm_control = (conf1 & 0x80) != 0; +} + +static struct emc2103_data *emc2103_update_device(struct device *dev) +{ + struct i2c_client *client = to_i2c_client(dev); + struct emc2103_data *data = i2c_get_clientdata(client); + + mutex_lock(&data->update_lock); + + if (time_after(jiffies, data->last_updated + HZ + HZ / 2) + || !data->valid) { + int i; + + for (i = 0; i < data->temp_count; i++) { + read_temp_from_i2c(client, REG_TEMP[i], &data->temp[i]); + read_u8_from_i2c(client, REG_TEMP_MIN[i], + &data->temp_min[i]); + read_u8_from_i2c(client, REG_TEMP_MAX[i], + &data->temp_max[i]); + } + + read_u8_from_i2c(client, REG_TEMP_MIN_ALARM, + &data->temp_min_alarm); + read_u8_from_i2c(client, REG_TEMP_MAX_ALARM, + &data->temp_max_alarm); + + read_fan_from_i2c(client, &data->fan_tach, + REG_FAN_TACH_HI, REG_FAN_TACH_LO); + read_fan_from_i2c(client, &data->fan_target, + REG_FAN_TARGET_HI, REG_FAN_TARGET_LO); + read_fan_config_from_i2c(client); + + data->last_updated = jiffies; + data->valid = true; + } + + mutex_unlock(&data->update_lock); + + return data; +} + +static ssize_t +show_temp(struct device *dev, struct device_attribute *da, char *buf) +{ + int nr = to_sensor_dev_attr(da)->index; + struct emc2103_data *data = emc2103_update_device(dev); + int millidegrees = data->temp[nr].degrees * 1000 + + data->temp[nr].fraction * 125; + return sprintf(buf, "%d\n", millidegrees); +} + +static ssize_t +show_temp_min(struct device *dev, struct device_attribute *da, char *buf) +{ + int nr = to_sensor_dev_attr(da)->index; + struct emc2103_data *data = emc2103_update_device(dev); + int millidegrees = data->temp_min[nr] * 1000; + return sprintf(buf, "%d\n", millidegrees); +} + +static ssize_t +show_temp_max(struct device *dev, struct device_attribute *da, char *buf) +{ + int nr = to_sensor_dev_attr(da)->index; + struct emc2103_data *data = emc2103_update_device(dev); + int millidegrees = data->temp_max[nr] * 1000; + return sprintf(buf, "%d\n", millidegrees); +} + +static ssize_t +show_temp_fault(struct device *dev, struct device_attribute *da, char *buf) +{ + int nr = to_sensor_dev_attr(da)->index; + struct emc2103_data *data = emc2103_update_device(dev); + bool fault = (data->temp[nr].degrees == -128); + return sprintf(buf, "%d\n", fault ? 1 : 0); +} + +static ssize_t +show_temp_min_alarm(struct device *dev, struct device_attribute *da, char *buf) +{ + int nr = to_sensor_dev_attr(da)->index; + struct emc2103_data *data = emc2103_update_device(dev); + bool alarm = data->temp_min_alarm & (1 << nr); + return sprintf(buf, "%d\n", alarm ? 1 : 0); +} + +static ssize_t +show_temp_max_alarm(struct device *dev, struct device_attribute *da, char *buf) +{ + int nr = to_sensor_dev_attr(da)->index; + struct emc2103_data *data = emc2103_update_device(dev); + bool alarm = data->temp_max_alarm & (1 << nr); + return sprintf(buf, "%d\n", alarm ? 1 : 0); +} + +static ssize_t set_temp_min(struct device *dev, struct device_attribute *da, + const char *buf, size_t count) +{ + int nr = to_sensor_dev_attr(da)->index; + struct i2c_client *client = to_i2c_client(dev); + struct emc2103_data *data = i2c_get_clientdata(client); + long val; + + int result = strict_strtol(buf, 10, &val); + if (result < 0) + return -EINVAL; + + val = DIV_ROUND_CLOSEST(val, 1000); + if ((val < -63) || (val > 127)) + return -EINVAL; + + mutex_lock(&data->update_lock); + data->temp_min[nr] = val; + i2c_smbus_write_byte_data(client, REG_TEMP_MIN[nr], val); + mutex_unlock(&data->update_lock); + + return count; +} + +static ssize_t set_temp_max(struct device *dev, struct device_attribute *da, + const char *buf, size_t count) +{ + int nr = to_sensor_dev_attr(da)->index; + struct i2c_client *client = to_i2c_client(dev); + struct emc2103_data *data = i2c_get_clientdata(client); + long val; + + int result = strict_strtol(buf, 10, &val); + if (result < 0) + return -EINVAL; + + val = DIV_ROUND_CLOSEST(val, 1000); + if ((val < -63) || (val > 127)) + return -EINVAL; + + mutex_lock(&data->update_lock); + data->temp_max[nr] = val; + i2c_smbus_write_byte_data(client, REG_TEMP_MAX[nr], val); + mutex_unlock(&data->update_lock); + + return count; +} + +static ssize_t +show_fan(struct device *dev, struct device_attribute *da, char *buf) +{ + struct emc2103_data *data = emc2103_update_device(dev); + int rpm = 0; + if (data->fan_tach != 0) + rpm = (FAN_RPM_FACTOR * data->fan_multiplier) / data->fan_tach; + return sprintf(buf, "%d\n", rpm); +} + +static ssize_t +show_fan_div(struct device *dev, struct device_attribute *da, char *buf) +{ + struct emc2103_data *data = emc2103_update_device(dev); + int fan_div = 8 / data->fan_multiplier; + return sprintf(buf, "%d\n", fan_div); +} + +/* Note: we also update the fan target here, because its value is + determined in part by the fan clock divider. This follows the principle + of least surprise; the user doesn't expect the fan target to change just + because the divider changed. */ +static ssize_t set_fan_div(struct device *dev, struct device_attribute *da, + const char *buf, size_t count) +{ + struct emc2103_data *data = emc2103_update_device(dev); + struct i2c_client *client = to_i2c_client(dev); + int new_range_bits, old_div = 8 / data->fan_multiplier; + long new_div; + + int status = strict_strtol(buf, 10, &new_div); + if (status < 0) + return -EINVAL; + + if (new_div == old_div) /* No change */ + return count; + + switch (new_div) { + case 1: + new_range_bits = 3; + break; + case 2: + new_range_bits = 2; + break; + case 4: + new_range_bits = 1; + break; + case 8: + new_range_bits = 0; + break; + default: + return -EINVAL; + } + + mutex_lock(&data->update_lock); + + status = i2c_smbus_read_byte_data(client, REG_FAN_CONF1); + if (status < 0) { + dev_dbg(&client->dev, "reg 0x%02x, err %d\n", + REG_FAN_CONF1, status); + mutex_unlock(&data->update_lock); + return -EIO; + } + status &= 0x9F; + status |= (new_range_bits << 5); + i2c_smbus_write_byte_data(client, REG_FAN_CONF1, status); + + data->fan_multiplier = 8 / new_div; + + /* update fan target if high byte is not disabled */ + if ((data->fan_target & 0x1fe0) != 0x1fe0) { + u16 new_target = (data->fan_target * old_div) / new_div; + data->fan_target = min(new_target, (u16)0x1fff); + write_fan_target_to_i2c(client, data->fan_target); + } + + /* invalidate data to force re-read from hardware */ + data->valid = false; + + mutex_unlock(&data->update_lock); + return count; +} + +static ssize_t +show_fan_target(struct device *dev, struct device_attribute *da, char *buf) +{ + struct emc2103_data *data = emc2103_update_device(dev); + int rpm = 0; + + /* high byte of 0xff indicates disabled so return 0 */ + if ((data->fan_target != 0) && ((data->fan_target & 0x1fe0) != 0x1fe0)) + rpm = (FAN_RPM_FACTOR * data->fan_multiplier) + / data->fan_target; + + return sprintf(buf, "%d\n", rpm); +} + +static ssize_t set_fan_target(struct device *dev, struct device_attribute *da, + const char *buf, size_t count) +{ + struct emc2103_data *data = emc2103_update_device(dev); + struct i2c_client *client = to_i2c_client(dev); + long rpm_target; + + int result = strict_strtol(buf, 10, &rpm_target); + if (result < 0) + return -EINVAL; + + /* Datasheet states 16384 as maximum RPM target (table 3.2) */ + if ((rpm_target < 0) || (rpm_target > 16384)) + return -EINVAL; + + mutex_lock(&data->update_lock); + + if (rpm_target == 0) + data->fan_target = 0x1fff; + else + data->fan_target = SENSORS_LIMIT( + (FAN_RPM_FACTOR * data->fan_multiplier) / rpm_target, + 0, 0x1fff); + + write_fan_target_to_i2c(client, data->fan_target); + + mutex_unlock(&data->update_lock); + return count; +} + +static ssize_t +show_fan_fault(struct device *dev, struct device_attribute *da, char *buf) +{ + struct emc2103_data *data = emc2103_update_device(dev); + bool fault = ((data->fan_tach & 0x1fe0) == 0x1fe0); + return sprintf(buf, "%d\n", fault ? 1 : 0); +} + +static ssize_t +show_pwm_enable(struct device *dev, struct device_attribute *da, char *buf) +{ + struct emc2103_data *data = emc2103_update_device(dev); + return sprintf(buf, "%d\n", data->fan_rpm_control ? 3 : 0); +} + +static ssize_t set_pwm_enable(struct device *dev, struct device_attribute *da, + const char *buf, size_t count) +{ + struct i2c_client *client = to_i2c_client(dev); + struct emc2103_data *data = i2c_get_clientdata(client); + long new_value; + u8 conf_reg; + + int result = strict_strtol(buf, 10, &new_value); + if (result < 0) + return -EINVAL; + + mutex_lock(&data->update_lock); + switch (new_value) { + case 0: + data->fan_rpm_control = false; + break; + case 3: + data->fan_rpm_control = true; + break; + default: + mutex_unlock(&data->update_lock); + return -EINVAL; + } + + read_u8_from_i2c(client, REG_FAN_CONF1, &conf_reg); + + if (data->fan_rpm_control) + conf_reg |= 0x80; + else + conf_reg &= ~0x80; + + i2c_smbus_write_byte_data(client, REG_FAN_CONF1, conf_reg); + + mutex_unlock(&data->update_lock); + return count; +} + +static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0); +static SENSOR_DEVICE_ATTR(temp1_min, S_IRUGO | S_IWUSR, show_temp_min, + set_temp_min, 0); +static SENSOR_DEVICE_ATTR(temp1_max, S_IRUGO | S_IWUSR, show_temp_max, + set_temp_max, 0); +static SENSOR_DEVICE_ATTR(temp1_fault, S_IRUGO, show_temp_fault, NULL, 0); +static SENSOR_DEVICE_ATTR(temp1_min_alarm, S_IRUGO, show_temp_min_alarm, + NULL, 0); +static SENSOR_DEVICE_ATTR(temp1_max_alarm, S_IRUGO, show_temp_max_alarm, + NULL, 0); + +static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 1); +static SENSOR_DEVICE_ATTR(temp2_min, S_IRUGO | S_IWUSR, show_temp_min, + set_temp_min, 1); +static SENSOR_DEVICE_ATTR(temp2_max, S_IRUGO | S_IWUSR, show_temp_max, + set_temp_max, 1); +static SENSOR_DEVICE_ATTR(temp2_fault, S_IRUGO, show_temp_fault, NULL, 1); +static SENSOR_DEVICE_ATTR(temp2_min_alarm, S_IRUGO, show_temp_min_alarm, + NULL, 1); +static SENSOR_DEVICE_ATTR(temp2_max_alarm, S_IRUGO, show_temp_max_alarm, + NULL, 1); + +static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, show_temp, NULL, 2); +static SENSOR_DEVICE_ATTR(temp3_min, S_IRUGO | S_IWUSR, show_temp_min, + set_temp_min, 2); +static SENSOR_DEVICE_ATTR(temp3_max, S_IRUGO | S_IWUSR, show_temp_max, + set_temp_max, 2); +static SENSOR_DEVICE_ATTR(temp3_fault, S_IRUGO, show_temp_fault, NULL, 2); +static SENSOR_DEVICE_ATTR(temp3_min_alarm, S_IRUGO, show_temp_min_alarm, + NULL, 2); +static SENSOR_DEVICE_ATTR(temp3_max_alarm, S_IRUGO, show_temp_max_alarm, + NULL, 2); + +static SENSOR_DEVICE_ATTR(temp4_input, S_IRUGO, show_temp, NULL, 3); +static SENSOR_DEVICE_ATTR(temp4_min, S_IRUGO | S_IWUSR, show_temp_min, + set_temp_min, 3); +static SENSOR_DEVICE_ATTR(temp4_max, S_IRUGO | S_IWUSR, show_temp_max, + set_temp_max, 3); +static SENSOR_DEVICE_ATTR(temp4_fault, S_IRUGO, show_temp_fault, NULL, 3); +static SENSOR_DEVICE_ATTR(temp4_min_alarm, S_IRUGO, show_temp_min_alarm, + NULL, 3); +static SENSOR_DEVICE_ATTR(temp4_max_alarm, S_IRUGO, show_temp_max_alarm, + NULL, 3); + +static DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL); +static DEVICE_ATTR(fan1_div, S_IRUGO | S_IWUSR, show_fan_div, set_fan_div); +static DEVICE_ATTR(fan1_target, S_IRUGO | S_IWUSR, show_fan_target, + set_fan_target); +static DEVICE_ATTR(fan1_fault, S_IRUGO, show_fan_fault, NULL); + +static DEVICE_ATTR(pwm1_enable, S_IRUGO | S_IWUSR, show_pwm_enable, + set_pwm_enable); + +/* sensors present on all models */ +static struct attribute *emc2103_attributes[] = { + &sensor_dev_attr_temp1_input.dev_attr.attr, + &sensor_dev_attr_temp1_min.dev_attr.attr, + &sensor_dev_attr_temp1_max.dev_attr.attr, + &sensor_dev_attr_temp1_fault.dev_attr.attr, + &sensor_dev_attr_temp1_min_alarm.dev_attr.attr, + &sensor_dev_attr_temp1_max_alarm.dev_attr.attr, + &sensor_dev_attr_temp2_input.dev_attr.attr, + &sensor_dev_attr_temp2_min.dev_attr.attr, + &sensor_dev_attr_temp2_max.dev_attr.attr, + &sensor_dev_attr_temp2_fault.dev_attr.attr, + &sensor_dev_attr_temp2_min_alarm.dev_attr.attr, + &sensor_dev_attr_temp2_max_alarm.dev_attr.attr, + &dev_attr_fan1_input.attr, + &dev_attr_fan1_div.attr, + &dev_attr_fan1_target.attr, + &dev_attr_fan1_fault.attr, + &dev_attr_pwm1_enable.attr, + NULL +}; + +/* extra temperature sensors only present on 2103-2 and 2103-4 */ +static struct attribute *emc2103_attributes_temp3[] = { + &sensor_dev_attr_temp3_input.dev_attr.attr, + &sensor_dev_attr_temp3_min.dev_attr.attr, + &sensor_dev_attr_temp3_max.dev_attr.attr, + &sensor_dev_attr_temp3_fault.dev_attr.attr, + &sensor_dev_attr_temp3_min_alarm.dev_attr.attr, + &sensor_dev_attr_temp3_max_alarm.dev_attr.attr, + NULL +}; + +/* extra temperature sensors only present on 2103-2 and 2103-4 in APD mode */ +static struct attribute *emc2103_attributes_temp4[] = { + &sensor_dev_attr_temp4_input.dev_attr.attr, + &sensor_dev_attr_temp4_min.dev_attr.attr, + &sensor_dev_attr_temp4_max.dev_attr.attr, + &sensor_dev_attr_temp4_fault.dev_attr.attr, + &sensor_dev_attr_temp4_min_alarm.dev_attr.attr, + &sensor_dev_attr_temp4_max_alarm.dev_attr.attr, + NULL +}; + +static const struct attribute_group emc2103_group = { + .attrs = emc2103_attributes, +}; + +static const struct attribute_group emc2103_temp3_group = { + .attrs = emc2103_attributes_temp3, +}; + +static const struct attribute_group emc2103_temp4_group = { + .attrs = emc2103_attributes_temp4, +}; + +static int +emc2103_probe(struct i2c_client *client, const struct i2c_device_id *id) +{ + struct emc2103_data *data; + int status; + + if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA)) + return -EIO; + + data = kzalloc(sizeof(struct emc2103_data), GFP_KERNEL); + if (!data) + return -ENOMEM; + + i2c_set_clientdata(client, data); + mutex_init(&data->update_lock); + + /* 2103-2 and 2103-4 have 3 external diodes, 2103-1 has 1 */ + status = i2c_smbus_read_byte_data(client, REG_PRODUCT_ID); + if (status == 0x24) { + /* 2103-1 only has 1 external diode */ + data->temp_count = 2; + } else { + /* 2103-2 and 2103-4 have 3 or 4 external diodes */ + status = i2c_smbus_read_byte_data(client, REG_CONF1); + if (status < 0) { + dev_dbg(&client->dev, "reg 0x%02x, err %d\n", REG_CONF1, + status); + goto exit_free; + } + + /* detect current state of hardware */ + data->temp_count = (status & 0x01) ? 4 : 3; + + /* force APD state if module parameter is set */ + if (apd == 0) { + /* force APD mode off */ + data->temp_count = 3; + status &= ~(0x01); + i2c_smbus_write_byte_data(client, REG_CONF1, status); + } else if (apd == 1) { + /* force APD mode on */ + data->temp_count = 4; + status |= 0x01; + i2c_smbus_write_byte_data(client, REG_CONF1, status); + } + } + + /* Register sysfs hooks */ + status = sysfs_create_group(&client->dev.kobj, &emc2103_group); + if (status) + goto exit_free; + + if (data->temp_count >= 3) { + status = sysfs_create_group(&client->dev.kobj, + &emc2103_temp3_group); + if (status) + goto exit_remove; + } + + if (data->temp_count == 4) { + status = sysfs_create_group(&client->dev.kobj, + &emc2103_temp4_group); + if (status) + goto exit_remove_temp3; + } + + data->hwmon_dev = hwmon_device_register(&client->dev); + if (IS_ERR(data->hwmon_dev)) { + status = PTR_ERR(data->hwmon_dev); + goto exit_remove_temp4; + } + + dev_info(&client->dev, "%s: sensor '%s'\n", + dev_name(data->hwmon_dev), client->name); + + return 0; + +exit_remove_temp4: + if (data->temp_count == 4) + sysfs_remove_group(&client->dev.kobj, &emc2103_temp4_group); +exit_remove_temp3: + if (data->temp_count >= 3) + sysfs_remove_group(&client->dev.kobj, &emc2103_temp3_group); +exit_remove: + sysfs_remove_group(&client->dev.kobj, &emc2103_group); +exit_free: + kfree(data); + return status; +} + +static int emc2103_remove(struct i2c_client *client) +{ + struct emc2103_data *data = i2c_get_clientdata(client); + + hwmon_device_unregister(data->hwmon_dev); + + if (data->temp_count == 4) + sysfs_remove_group(&client->dev.kobj, &emc2103_temp4_group); + + if (data->temp_count >= 3) + sysfs_remove_group(&client->dev.kobj, &emc2103_temp3_group); + + sysfs_remove_group(&client->dev.kobj, &emc2103_group); + + kfree(data); + return 0; +} + +static const struct i2c_device_id emc2103_ids[] = { + { "emc2103", 0, }, + { /* LIST END */ } +}; +MODULE_DEVICE_TABLE(i2c, emc2103_ids); + +/* Return 0 if detection is successful, -ENODEV otherwise */ +static int +emc2103_detect(struct i2c_client *new_client, struct i2c_board_info *info) +{ + struct i2c_adapter *adapter = new_client->adapter; + int manufacturer, product; + + if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) + return -ENODEV; + + manufacturer = i2c_smbus_read_byte_data(new_client, REG_MFG_ID); + if (manufacturer != 0x5D) + return -ENODEV; + + product = i2c_smbus_read_byte_data(new_client, REG_PRODUCT_ID); + if ((product != 0x24) && (product != 0x26)) + return -ENODEV; + + strlcpy(info->type, "emc2103", I2C_NAME_SIZE); + + return 0; +} + +static struct i2c_driver emc2103_driver = { + .class = I2C_CLASS_HWMON, + .driver = { + .name = "emc2103", + }, + .probe = emc2103_probe, + .remove = emc2103_remove, + .id_table = emc2103_ids, + .detect = emc2103_detect, + .address_list = normal_i2c, +}; + +static int __init sensors_emc2103_init(void) +{ + return i2c_add_driver(&emc2103_driver); +} + +static void __exit sensors_emc2103_exit(void) +{ + i2c_del_driver(&emc2103_driver); +} + +MODULE_AUTHOR("Steve Glendinning <steve.glendinning@smsc.com>"); +MODULE_DESCRIPTION("SMSC EMC2103 hwmon driver"); +MODULE_LICENSE("GPL"); + +module_init(sensors_emc2103_init); +module_exit(sensors_emc2103_exit); diff --git a/drivers/hwmon/it87.c b/drivers/hwmon/it87.c index 25763d2..f770129 100644 --- a/drivers/hwmon/it87.c +++ b/drivers/hwmon/it87.c @@ -259,6 +259,7 @@ struct it87_sio_data { u8 revision; u8 vid_value; u8 beep_pin; + u8 internal; /* Internal sensors can be labeled */ /* Features skipped based on config or DMI */ u8 skip_vid; u8 skip_fan; @@ -1194,6 +1195,22 @@ static ssize_t show_vid_reg(struct device *dev, struct device_attribute *attr, } static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL); +static ssize_t show_label(struct device *dev, struct device_attribute *attr, + char *buf) +{ + static const char *labels[] = { + "+5V", + "5VSB", + "Vbat", + }; + int nr = to_sensor_dev_attr(attr)->index; + + return sprintf(buf, "%s\n", labels[nr]); +} +static SENSOR_DEVICE_ATTR(in3_label, S_IRUGO, show_label, NULL, 0); +static SENSOR_DEVICE_ATTR(in7_label, S_IRUGO, show_label, NULL, 1); +static SENSOR_DEVICE_ATTR(in8_label, S_IRUGO, show_label, NULL, 2); + static ssize_t show_name(struct device *dev, struct device_attribute *devattr, char *buf) { @@ -1434,6 +1451,17 @@ static const struct attribute_group it87_group_vid = { .attrs = it87_attributes_vid, }; +static struct attribute *it87_attributes_label[] = { + &sensor_dev_attr_in3_label.dev_attr.attr, + &sensor_dev_attr_in7_label.dev_attr.attr, + &sensor_dev_attr_in8_label.dev_attr.attr, + NULL +}; + +static const struct attribute_group it87_group_label = { + .attrs = it87_attributes_vid, +}; + /* SuperIO detection - will change isa_address if a chip is found */ static int __init it87_find(unsigned short *address, struct it87_sio_data *sio_data) @@ -1487,6 +1515,9 @@ static int __init it87_find(unsigned short *address, pr_info("it87: Found IT%04xF chip at 0x%x, revision %d\n", chip_type, *address, sio_data->revision); + /* in8 (Vbat) is always internal */ + sio_data->internal = (1 << 2); + /* Read GPIO config and VID value from LDN 7 (GPIO) */ if (sio_data->type == it87) { /* The IT8705F doesn't have VID pins at all */ @@ -1540,9 +1571,9 @@ static int __init it87_find(unsigned short *address, pr_notice("it87: Routing internal VCCH to in7\n"); } if (reg & (1 << 0)) - pr_info("it87: in3 is VCC (+5V)\n"); + sio_data->internal |= (1 << 0); if (reg & (1 << 1)) - pr_info("it87: in7 is VCCH (+5V Stand-By)\n"); + sio_data->internal |= (1 << 1); sio_data->beep_pin = superio_inb(IT87_SIO_BEEP_PIN_REG) & 0x3f; } @@ -1600,6 +1631,7 @@ static void it87_remove_files(struct device *dev) } if (!sio_data->skip_vid) sysfs_remove_group(&dev->kobj, &it87_group_vid); + sysfs_remove_group(&dev->kobj, &it87_group_label); } static int __devinit it87_probe(struct platform_device *pdev) @@ -1725,6 +1757,16 @@ static int __devinit it87_probe(struct platform_device *pdev) goto ERROR4; } + /* Export labels for internal sensors */ + for (i = 0; i < 3; i++) { + if (!(sio_data->internal & (1 << i))) + continue; + err = sysfs_create_file(&dev->kobj, + it87_attributes_label[i]); + if (err) + goto ERROR4; + } + data->hwmon_dev = hwmon_device_register(dev); if (IS_ERR(data->hwmon_dev)) { err = PTR_ERR(data->hwmon_dev); diff --git a/drivers/hwmon/k8temp.c b/drivers/hwmon/k8temp.c index 8bdf80d..b9bb3e0 100644 --- a/drivers/hwmon/k8temp.c +++ b/drivers/hwmon/k8temp.c @@ -252,12 +252,13 @@ static int __devinit k8temp_probe(struct pci_dev *pdev, &sensor_dev_attr_temp3_input.dev_attr); if (err) goto exit_remove; - if (data->sensorsp & SEL_PLACE) + if (data->sensorsp & SEL_PLACE) { err = device_create_file(&pdev->dev, &sensor_dev_attr_temp4_input. dev_attr); if (err) goto exit_remove; + } } err = device_create_file(&pdev->dev, &dev_attr_name); diff --git a/drivers/hwmon/lm75.c b/drivers/hwmon/lm75.c index 393f354..ab5b87a 100644 --- a/drivers/hwmon/lm75.c +++ b/drivers/hwmon/lm75.c @@ -280,10 +280,49 @@ static int lm75_detect(struct i2c_client *new_client, return 0; } +#ifdef CONFIG_PM +static int lm75_suspend(struct device *dev) +{ + int status; + struct i2c_client *client = to_i2c_client(dev); + status = lm75_read_value(client, LM75_REG_CONF); + if (status < 0) { + dev_dbg(&client->dev, "Can't read config? %d\n", status); + return status; + } + status = status | LM75_SHUTDOWN; + lm75_write_value(client, LM75_REG_CONF, status); + return 0; +} + +static int lm75_resume(struct device *dev) +{ + int status; + struct i2c_client *client = to_i2c_client(dev); + status = lm75_read_value(client, LM75_REG_CONF); + if (status < 0) { + dev_dbg(&client->dev, "Can't read config? %d\n", status); + return status; + } + status = status & ~LM75_SHUTDOWN; + lm75_write_value(client, LM75_REG_CONF, status); + return 0; +} + +static const struct dev_pm_ops lm75_dev_pm_ops = { + .suspend = lm75_suspend, + .resume = lm75_resume, +}; +#define LM75_DEV_PM_OPS (&lm75_dev_pm_ops) +#else +#define LM75_DEV_PM_OPS NULL +#endif /* CONFIG_PM */ + static struct i2c_driver lm75_driver = { .class = I2C_CLASS_HWMON, .driver = { .name = "lm75", + .pm = LM75_DEV_PM_OPS, }, .probe = lm75_probe, .remove = lm75_remove, diff --git a/drivers/hwmon/lm75.h b/drivers/hwmon/lm75.h index 7c93454..e547a3e 100644 --- a/drivers/hwmon/lm75.h +++ b/drivers/hwmon/lm75.h @@ -30,6 +30,7 @@ /* straight from the datasheet */ #define LM75_TEMP_MIN (-55000) #define LM75_TEMP_MAX 125000 +#define LM75_SHUTDOWN 0x01 /* TEMP: 0.001C/bit (-55C to +125C) REG: (0.5C/bit, two's complement) << 7 */ diff --git a/drivers/hwmon/ltc4245.c b/drivers/hwmon/ltc4245.c index 21d201b..6593083 100644 --- a/drivers/hwmon/ltc4245.c +++ b/drivers/hwmon/ltc4245.c @@ -21,6 +21,7 @@ #include <linux/i2c.h> #include <linux/hwmon.h> #include <linux/hwmon-sysfs.h> +#include <linux/i2c/ltc4245.h> /* Here are names of the chip's registers (a.k.a. commands) */ enum ltc4245_cmd { @@ -60,8 +61,72 @@ struct ltc4245_data { /* Voltage registers */ u8 vregs[0x0d]; + + /* GPIO ADC registers */ + bool use_extra_gpios; + int gpios[3]; }; +/* + * Update the readings from the GPIO pins. If the driver has been configured to + * sample all GPIO's as analog voltages, a round-robin sampling method is used. + * Otherwise, only the configured GPIO pin is sampled. + * + * LOCKING: must hold data->update_lock + */ +static void ltc4245_update_gpios(struct device *dev) +{ + struct i2c_client *client = to_i2c_client(dev); + struct ltc4245_data *data = i2c_get_clientdata(client); + u8 gpio_curr, gpio_next, gpio_reg; + int i; + + /* no extra gpio support, we're basically done */ + if (!data->use_extra_gpios) { + data->gpios[0] = data->vregs[LTC4245_GPIOADC - 0x10]; + return; + } + + /* + * If the last reading was too long ago, then we mark all old GPIO + * readings as stale by setting them to -EAGAIN + */ + if (time_after(jiffies, data->last_updated + 5 * HZ)) { + dev_dbg(&client->dev, "Marking GPIOs invalid\n"); + for (i = 0; i < ARRAY_SIZE(data->gpios); i++) + data->gpios[i] = -EAGAIN; + } + + /* + * Get the current GPIO pin + * + * The datasheet calls these GPIO[1-3], but we'll calculate the zero + * based array index instead, and call them GPIO[0-2]. This is much + * easier to think about. + */ + gpio_curr = (data->cregs[LTC4245_GPIO] & 0xc0) >> 6; + if (gpio_curr > 0) + gpio_curr -= 1; + + /* Read the GPIO voltage from the GPIOADC register */ + data->gpios[gpio_curr] = data->vregs[LTC4245_GPIOADC - 0x10]; + + /* Find the next GPIO pin to read */ + gpio_next = (gpio_curr + 1) % ARRAY_SIZE(data->gpios); + + /* + * Calculate the correct setting for the GPIO register so it will + * sample the next GPIO pin + */ + gpio_reg = (data->cregs[LTC4245_GPIO] & 0x3f) | ((gpio_next + 1) << 6); + + /* Update the GPIO register */ + i2c_smbus_write_byte_data(client, LTC4245_GPIO, gpio_reg); + + /* Update saved data */ + data->cregs[LTC4245_GPIO] = gpio_reg; +} + static struct ltc4245_data *ltc4245_update_device(struct device *dev) { struct i2c_client *client = to_i2c_client(dev); @@ -93,6 +158,9 @@ static struct ltc4245_data *ltc4245_update_device(struct device *dev) data->vregs[i] = val; } + /* Update GPIO readings */ + ltc4245_update_gpios(dev); + data->last_updated = jiffies; data->valid = 1; } @@ -233,6 +301,22 @@ static ssize_t ltc4245_show_alarm(struct device *dev, return snprintf(buf, PAGE_SIZE, "%u\n", (reg & mask) ? 1 : 0); } +static ssize_t ltc4245_show_gpio(struct device *dev, + struct device_attribute *da, + char *buf) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(da); + struct ltc4245_data *data = ltc4245_update_device(dev); + int val = data->gpios[attr->index]; + + /* handle stale GPIO's */ + if (val < 0) + return val; + + /* Convert to millivolts and print */ + return snprintf(buf, PAGE_SIZE, "%u\n", val * 10); +} + /* These macros are used below in constructing device attribute objects * for use with sysfs_create_group() to make a sysfs device file * for each register. @@ -254,6 +338,10 @@ static ssize_t ltc4245_show_alarm(struct device *dev, static SENSOR_DEVICE_ATTR_2(name, S_IRUGO, \ ltc4245_show_alarm, NULL, (mask), reg) +#define LTC4245_GPIO_VOLTAGE(name, gpio_num) \ + static SENSOR_DEVICE_ATTR(name, S_IRUGO, \ + ltc4245_show_gpio, NULL, gpio_num) + /* Construct a sensor_device_attribute structure for each register */ /* Input voltages */ @@ -293,7 +381,9 @@ LTC4245_ALARM(in7_min_alarm, (1 << 2), LTC4245_FAULT2); LTC4245_ALARM(in8_min_alarm, (1 << 3), LTC4245_FAULT2); /* GPIO voltages */ -LTC4245_VOLTAGE(in9_input, LTC4245_GPIOADC); +LTC4245_GPIO_VOLTAGE(in9_input, 0); +LTC4245_GPIO_VOLTAGE(in10_input, 1); +LTC4245_GPIO_VOLTAGE(in11_input, 2); /* Power Consumption (virtual) */ LTC4245_POWER(power1_input, LTC4245_12VSENSE); @@ -304,7 +394,7 @@ LTC4245_POWER(power4_input, LTC4245_VEESENSE); /* Finally, construct an array of pointers to members of the above objects, * as required for sysfs_create_group() */ -static struct attribute *ltc4245_attributes[] = { +static struct attribute *ltc4245_std_attributes[] = { &sensor_dev_attr_in1_input.dev_attr.attr, &sensor_dev_attr_in2_input.dev_attr.attr, &sensor_dev_attr_in3_input.dev_attr.attr, @@ -345,10 +435,77 @@ static struct attribute *ltc4245_attributes[] = { NULL, }; -static const struct attribute_group ltc4245_group = { - .attrs = ltc4245_attributes, +static struct attribute *ltc4245_gpio_attributes[] = { + &sensor_dev_attr_in10_input.dev_attr.attr, + &sensor_dev_attr_in11_input.dev_attr.attr, + NULL, +}; + +static const struct attribute_group ltc4245_std_group = { + .attrs = ltc4245_std_attributes, +}; + +static const struct attribute_group ltc4245_gpio_group = { + .attrs = ltc4245_gpio_attributes, }; +static int ltc4245_sysfs_create_groups(struct i2c_client *client) +{ + struct ltc4245_data *data = i2c_get_clientdata(client); + struct device *dev = &client->dev; + int ret; + + /* register the standard sysfs attributes */ + ret = sysfs_create_group(&dev->kobj, <c4245_std_group); + if (ret) { + dev_err(dev, "unable to register standard attributes\n"); + return ret; + } + + /* if we're using the extra gpio support, register it's attributes */ + if (data->use_extra_gpios) { + ret = sysfs_create_group(&dev->kobj, <c4245_gpio_group); + if (ret) { + dev_err(dev, "unable to register gpio attributes\n"); + sysfs_remove_group(&dev->kobj, <c4245_std_group); + return ret; + } + } + + return 0; +} + +static void ltc4245_sysfs_remove_groups(struct i2c_client *client) +{ + struct ltc4245_data *data = i2c_get_clientdata(client); + struct device *dev = &client->dev; + + if (data->use_extra_gpios) + sysfs_remove_group(&dev->kobj, <c4245_gpio_group); + + sysfs_remove_group(&dev->kobj, <c4245_std_group); +} + +static bool ltc4245_use_extra_gpios(struct i2c_client *client) +{ + struct ltc4245_platform_data *pdata = dev_get_platdata(&client->dev); +#ifdef CONFIG_OF + struct device_node *np = client->dev.of_node; +#endif + + /* prefer platform data */ + if (pdata) + return pdata->use_extra_gpios; + +#ifdef CONFIG_OF + /* fallback on OF */ + if (of_find_property(np, "ltc4245,use-extra-gpios", NULL)) + return true; +#endif + + return false; +} + static int ltc4245_probe(struct i2c_client *client, const struct i2c_device_id *id) { @@ -367,15 +524,16 @@ static int ltc4245_probe(struct i2c_client *client, i2c_set_clientdata(client, data); mutex_init(&data->update_lock); + data->use_extra_gpios = ltc4245_use_extra_gpios(client); /* Initialize the LTC4245 chip */ 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); + ret = ltc4245_sysfs_create_groups(client); if (ret) - goto out_sysfs_create_group; + goto out_sysfs_create_groups; data->hwmon_dev = hwmon_device_register(&client->dev); if (IS_ERR(data->hwmon_dev)) { @@ -386,8 +544,8 @@ static int ltc4245_probe(struct i2c_client *client, return 0; out_hwmon_device_register: - sysfs_remove_group(&client->dev.kobj, <c4245_group); -out_sysfs_create_group: + ltc4245_sysfs_remove_groups(client); +out_sysfs_create_groups: kfree(data); out_kzalloc: return ret; @@ -398,8 +556,7 @@ static int ltc4245_remove(struct i2c_client *client) struct ltc4245_data *data = i2c_get_clientdata(client); hwmon_device_unregister(data->hwmon_dev); - sysfs_remove_group(&client->dev.kobj, <c4245_group); - + ltc4245_sysfs_remove_groups(client); kfree(data); return 0; diff --git a/drivers/hwmon/pc87360.c b/drivers/hwmon/pc87360.c index 4a64b85..68e69a4 100644 --- a/drivers/hwmon/pc87360.c +++ b/drivers/hwmon/pc87360.c @@ -1610,11 +1610,8 @@ static struct pc87360_data *pc87360_update_device(struct device *dev) static int __init pc87360_device_add(unsigned short address) { - struct resource res = { - .name = "pc87360", - .flags = IORESOURCE_IO, - }; - int err, i; + struct resource res[3]; + int err, i, res_count; pdev = platform_device_alloc("pc87360", address); if (!pdev) { @@ -1623,22 +1620,28 @@ static int __init pc87360_device_add(unsigned short address) goto exit; } + memset(res, 0, 3 * sizeof(struct resource)); + res_count = 0; for (i = 0; i < 3; i++) { if (!extra_isa[i]) continue; - res.start = extra_isa[i]; - res.end = extra_isa[i] + PC87360_EXTENT - 1; + res[res_count].start = extra_isa[i]; + res[res_count].end = extra_isa[i] + PC87360_EXTENT - 1; + res[res_count].name = "pc87360", + res[res_count].flags = IORESOURCE_IO, - err = acpi_check_resource_conflict(&res); + err = acpi_check_resource_conflict(&res[res_count]); if (err) goto exit_device_put; - err = platform_device_add_resources(pdev, &res, 1); - if (err) { - printk(KERN_ERR "pc87360: Device resource[%d] " - "addition failed (%d)\n", i, err); - goto exit_device_put; - } + res_count++; + } + + err = platform_device_add_resources(pdev, res, res_count); + if (err) { + printk(KERN_ERR "pc87360: Device resources addition failed " + "(%d)\n", err); + goto exit_device_put; } err = platform_device_add(pdev); diff --git a/drivers/hwmon/pc87427.c b/drivers/hwmon/pc87427.c index 3170b26..9ec4daa 100644 --- a/drivers/hwmon/pc87427.c +++ b/drivers/hwmon/pc87427.c @@ -1,7 +1,7 @@ /* * pc87427.c - hardware monitoring driver for the * National Semiconductor PC87427 Super-I/O chip - * Copyright (C) 2006 Jean Delvare <khali@linux-fr.org> + * Copyright (C) 2006, 2008, 2010 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 version 2 as @@ -15,10 +15,11 @@ * Supports the following chips: * * Chip #vin #fan #pwm #temp devid - * PC87427 - 8 - - 0xF2 + * PC87427 - 8 4 6 0xF2 * * This driver assumes that no more than one chip is present. - * Only fan inputs are supported so far, although the chip can do much more. + * Only fans are fully supported so far. Temperatures are in read-only + * mode, and voltages aren't supported at all. */ #include <linux/module.h> @@ -57,6 +58,25 @@ struct pc87427_data { u16 fan[8]; /* register values */ u16 fan_min[8]; /* register values */ u8 fan_status[8]; /* register values */ + + u8 pwm_enabled; /* bit vector */ + u8 pwm_auto_ok; /* bit vector */ + u8 pwm_enable[4]; /* register values */ + u8 pwm[4]; /* register values */ + + u8 temp_enabled; /* bit vector */ + s16 temp[6]; /* register values */ + s8 temp_min[6]; /* register values */ + s8 temp_max[6]; /* register values */ + s8 temp_crit[6]; /* register values */ + u8 temp_status[6]; /* register values */ + u8 temp_type[6]; /* register values */ +}; + +struct pc87427_sio_data { + unsigned short address[2]; + u8 has_fanin; + u8 has_fanout; }; /* @@ -65,6 +85,13 @@ struct pc87427_data { #define SIOREG_LDSEL 0x07 /* Logical device select */ #define SIOREG_DEVID 0x20 /* Device ID */ +#define SIOREG_CF2 0x22 /* Configuration 2 */ +#define SIOREG_CF3 0x23 /* Configuration 3 */ +#define SIOREG_CF4 0x24 /* Configuration 4 */ +#define SIOREG_CF5 0x25 /* Configuration 5 */ +#define SIOREG_CFB 0x2B /* Configuration B */ +#define SIOREG_CFC 0x2C /* Configuration C */ +#define SIOREG_CFD 0x2D /* Configuration D */ #define SIOREG_ACT 0x30 /* Device activation */ #define SIOREG_MAP 0x50 /* I/O or memory mapping */ #define SIOREG_IOBASE 0x60 /* I/O base address */ @@ -102,6 +129,8 @@ static inline void superio_exit(int sioaddr) #define BANK_FM(nr) (nr) #define BANK_FT(nr) (0x08 + (nr)) #define BANK_FC(nr) (0x10 + (nr) * 2) +#define BANK_TM(nr) (nr) +#define BANK_VM(nr) (0x08 + (nr)) /* * I/O access functions @@ -179,6 +208,127 @@ static inline u16 fan_to_reg(unsigned long val) } /* + * PWM registers and conversions + */ + +#define PC87427_REG_PWM_ENABLE 0x10 +#define PC87427_REG_PWM_DUTY 0x12 + +#define PWM_ENABLE_MODE_MASK (7 << 4) +#define PWM_ENABLE_CTLEN (1 << 0) + +#define PWM_MODE_MANUAL (0 << 4) +#define PWM_MODE_AUTO (1 << 4) +#define PWM_MODE_OFF (2 << 4) +#define PWM_MODE_ON (7 << 4) + +/* Dedicated function to read all registers related to a given PWM output. + This saves us quite a few locks and bank selections. + Must be called with data->lock held. + nr is from 0 to 3 */ +static void pc87427_readall_pwm(struct pc87427_data *data, u8 nr) +{ + int iobase = data->address[LD_FAN]; + + outb(BANK_FC(nr), iobase + PC87427_REG_BANK); + data->pwm_enable[nr] = inb(iobase + PC87427_REG_PWM_ENABLE); + data->pwm[nr] = inb(iobase + PC87427_REG_PWM_DUTY); +} + +static inline int pwm_enable_from_reg(u8 reg) +{ + switch (reg & PWM_ENABLE_MODE_MASK) { + case PWM_MODE_ON: + return 0; + case PWM_MODE_MANUAL: + case PWM_MODE_OFF: + return 1; + case PWM_MODE_AUTO: + return 2; + default: + return -EPROTO; + } +} + +static inline u8 pwm_enable_to_reg(unsigned long val, u8 pwmval) +{ + switch (val) { + default: + return PWM_MODE_ON; + case 1: + return pwmval ? PWM_MODE_MANUAL : PWM_MODE_OFF; + case 2: + return PWM_MODE_AUTO; + } +} + +/* + * Temperature registers and conversions + */ + +#define PC87427_REG_TEMP_STATUS 0x10 +#define PC87427_REG_TEMP 0x14 +#define PC87427_REG_TEMP_MAX 0x18 +#define PC87427_REG_TEMP_MIN 0x19 +#define PC87427_REG_TEMP_CRIT 0x1a +#define PC87427_REG_TEMP_TYPE 0x1d + +#define TEMP_STATUS_CHANEN (1 << 0) +#define TEMP_STATUS_LOWFLG (1 << 1) +#define TEMP_STATUS_HIGHFLG (1 << 2) +#define TEMP_STATUS_CRITFLG (1 << 3) +#define TEMP_STATUS_SENSERR (1 << 5) +#define TEMP_TYPE_MASK (3 << 5) + +#define TEMP_TYPE_THERMISTOR (1 << 5) +#define TEMP_TYPE_REMOTE_DIODE (2 << 5) +#define TEMP_TYPE_LOCAL_DIODE (3 << 5) + +/* Dedicated function to read all registers related to a given temperature + input. This saves us quite a few locks and bank selections. + Must be called with data->lock held. + nr is from 0 to 5 */ +static void pc87427_readall_temp(struct pc87427_data *data, u8 nr) +{ + int iobase = data->address[LD_TEMP]; + + outb(BANK_TM(nr), iobase + PC87427_REG_BANK); + data->temp[nr] = le16_to_cpu(inw(iobase + PC87427_REG_TEMP)); + data->temp_max[nr] = inb(iobase + PC87427_REG_TEMP_MAX); + data->temp_min[nr] = inb(iobase + PC87427_REG_TEMP_MIN); + data->temp_crit[nr] = inb(iobase + PC87427_REG_TEMP_CRIT); + data->temp_type[nr] = inb(iobase + PC87427_REG_TEMP_TYPE); + data->temp_status[nr] = inb(iobase + PC87427_REG_TEMP_STATUS); + /* Clear fan alarm bits */ + outb(data->temp_status[nr], iobase + PC87427_REG_TEMP_STATUS); +} + +static inline unsigned int temp_type_from_reg(u8 reg) +{ + switch (reg & TEMP_TYPE_MASK) { + case TEMP_TYPE_THERMISTOR: + return 4; + case TEMP_TYPE_REMOTE_DIODE: + case TEMP_TYPE_LOCAL_DIODE: + return 3; + default: + return 0; + } +} + +/* We assume 8-bit thermal sensors; 9-bit thermal sensors are possible + too, but I have no idea how to figure out when they are used. */ +static inline long temp_from_reg(s16 reg) +{ + return reg * 1000 / 256; +} + +static inline long temp_from_reg8(s8 reg) +{ + return reg * 1000; +} + +/* * Data interface */ @@ -198,6 +348,21 @@ static struct pc87427_data *pc87427_update_device(struct device *dev) continue; pc87427_readall_fan(data, i); } + + /* PWM outputs */ + for (i = 0; i < 4; i++) { + if (!(data->pwm_enabled & (1 << i))) + continue; + pc87427_readall_pwm(data, i); + } + + /* Temperature channels */ + for (i = 0; i < 6; i++) { + if (!(data->temp_enabled & (1 << i))) + continue; + pc87427_readall_temp(data, i); + } + data->last_updated = jiffies; done: @@ -208,9 +373,8 @@ done: static ssize_t show_fan_input(struct device *dev, struct device_attribute *devattr, char *buf) { - struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); struct pc87427_data *data = pc87427_update_device(dev); - int nr = attr->index; + int nr = to_sensor_dev_attr(devattr)->index; return sprintf(buf, "%lu\n", fan_from_reg(data->fan[nr])); } @@ -218,9 +382,8 @@ static ssize_t show_fan_input(struct device *dev, struct device_attribute static ssize_t show_fan_min(struct device *dev, struct device_attribute *devattr, char *buf) { - struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); struct pc87427_data *data = pc87427_update_device(dev); - int nr = attr->index; + int nr = to_sensor_dev_attr(devattr)->index; return sprintf(buf, "%lu\n", fan_from_reg(data->fan_min[nr])); } @@ -228,9 +391,8 @@ static ssize_t show_fan_min(struct device *dev, struct device_attribute static ssize_t show_fan_alarm(struct device *dev, struct device_attribute *devattr, char *buf) { - struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); struct pc87427_data *data = pc87427_update_device(dev); - int nr = attr->index; + int nr = to_sensor_dev_attr(devattr)->index; return sprintf(buf, "%d\n", !!(data->fan_status[nr] & FAN_STATUS_LOSPD)); @@ -239,9 +401,8 @@ static ssize_t show_fan_alarm(struct device *dev, struct device_attribute static ssize_t show_fan_fault(struct device *dev, struct device_attribute *devattr, char *buf) { - struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); struct pc87427_data *data = pc87427_update_device(dev); - int nr = attr->index; + int nr = to_sensor_dev_attr(devattr)->index; return sprintf(buf, "%d\n", !!(data->fan_status[nr] & FAN_STATUS_STALL)); @@ -251,11 +412,13 @@ static ssize_t set_fan_min(struct device *dev, struct device_attribute *devattr, const char *buf, size_t count) { struct pc87427_data *data = dev_get_drvdata(dev); - struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - int nr = attr->index; - unsigned long val = simple_strtoul(buf, NULL, 10); + int nr = to_sensor_dev_attr(devattr)->index; + unsigned long val; int iobase = data->address[LD_FAN]; + if (strict_strtoul(buf, 10, &val) < 0) + return -EINVAL; + mutex_lock(&data->lock); outb(BANK_FM(nr), iobase + PC87427_REG_BANK); /* The low speed limit registers are read-only while monitoring @@ -377,6 +540,390 @@ static const struct attribute_group pc87427_group_fan[8] = { { .attrs = pc87427_attributes_fan[7] }, }; +/* Must be called with data->lock held and pc87427_readall_pwm() freshly + called */ +static void update_pwm_enable(struct pc87427_data *data, int nr, u8 mode) +{ + int iobase = data->address[LD_FAN]; + data->pwm_enable[nr] &= ~PWM_ENABLE_MODE_MASK; + data->pwm_enable[nr] |= mode; + outb(data->pwm_enable[nr], iobase + PC87427_REG_PWM_ENABLE); +} + +static ssize_t show_pwm_enable(struct device *dev, struct device_attribute + *devattr, char *buf) +{ + struct pc87427_data *data = pc87427_update_device(dev); + int nr = to_sensor_dev_attr(devattr)->index; + int pwm_enable; + + pwm_enable = pwm_enable_from_reg(data->pwm_enable[nr]); + if (pwm_enable < 0) + return pwm_enable; + return sprintf(buf, "%d\n", pwm_enable); +} + +static ssize_t set_pwm_enable(struct device *dev, struct device_attribute + *devattr, const char *buf, size_t count) +{ + struct pc87427_data *data = dev_get_drvdata(dev); + int nr = to_sensor_dev_attr(devattr)->index; + unsigned long val; + + if (strict_strtoul(buf, 10, &val) < 0 || val > 2) + return -EINVAL; + /* Can't go to automatic mode if it isn't configured */ + if (val == 2 && !(data->pwm_auto_ok & (1 << nr))) + return -EINVAL; + + mutex_lock(&data->lock); + pc87427_readall_pwm(data, nr); + update_pwm_enable(data, nr, pwm_enable_to_reg(val, data->pwm[nr])); + mutex_unlock(&data->lock); + + return count; +} + +static ssize_t show_pwm(struct device *dev, struct device_attribute + *devattr, char *buf) +{ + struct pc87427_data *data = pc87427_update_device(dev); + int nr = to_sensor_dev_attr(devattr)->index; + + return sprintf(buf, "%d\n", (int)data->pwm[nr]); +} + +static ssize_t set_pwm(struct device *dev, struct device_attribute + *devattr, const char *buf, size_t count) +{ + struct pc87427_data *data = dev_get_drvdata(dev); + int nr = to_sensor_dev_attr(devattr)->index; + unsigned long val; + int iobase = data->address[LD_FAN]; + u8 mode; + + if (strict_strtoul(buf, 10, &val) < 0 || val > 0xff) + return -EINVAL; + + mutex_lock(&data->lock); + pc87427_readall_pwm(data, nr); + mode = data->pwm_enable[nr] & PWM_ENABLE_MODE_MASK; + if (mode != PWM_MODE_MANUAL && mode != PWM_MODE_OFF) { + dev_notice(dev, "Can't set PWM%d duty cycle while not in " + "manual mode\n", nr + 1); + mutex_unlock(&data->lock); + return -EPERM; + } + + /* We may have to change the mode */ + if (mode == PWM_MODE_MANUAL && val == 0) { + /* Transition from Manual to Off */ + update_pwm_enable(data, nr, PWM_MODE_OFF); + mode = PWM_MODE_OFF; + dev_dbg(dev, "Switching PWM%d from %s to %s\n", nr + 1, + "manual", "off"); + } else if (mode == PWM_MODE_OFF && val != 0) { + /* Transition from Off to Manual */ + update_pwm_enable(data, nr, PWM_MODE_MANUAL); + mode = PWM_MODE_MANUAL; + dev_dbg(dev, "Switching PWM%d from %s to %s\n", nr + 1, + "off", "manual"); + } + + data->pwm[nr] = val; + if (mode == PWM_MODE_MANUAL) + outb(val, iobase + PC87427_REG_PWM_DUTY); + mutex_unlock(&data->lock); + + return count; +} + +static SENSOR_DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO, + show_pwm_enable, set_pwm_enable, 0); +static SENSOR_DEVICE_ATTR(pwm2_enable, S_IWUSR | S_IRUGO, + show_pwm_enable, set_pwm_enable, 1); +static SENSOR_DEVICE_ATTR(pwm3_enable, S_IWUSR | S_IRUGO, + show_pwm_enable, set_pwm_enable, 2); +static SENSOR_DEVICE_ATTR(pwm4_enable, S_IWUSR | S_IRUGO, + show_pwm_enable, set_pwm_enable, 3); + +static SENSOR_DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 0); +static SENSOR_DEVICE_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 1); +static SENSOR_DEVICE_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 2); +static SENSOR_DEVICE_ATTR(pwm4, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 3); + +static struct attribute *pc87427_attributes_pwm[4][3] = { + { + &sensor_dev_attr_pwm1_enable.dev_attr.attr, + &sensor_dev_attr_pwm1.dev_attr.attr, + NULL + }, { + &sensor_dev_attr_pwm2_enable.dev_attr.attr, + &sensor_dev_attr_pwm2.dev_attr.attr, + NULL + }, { + &sensor_dev_attr_pwm3_enable.dev_attr.attr, + &sensor_dev_attr_pwm3.dev_attr.attr, + NULL + }, { + &sensor_dev_attr_pwm4_enable.dev_attr.attr, + &sensor_dev_attr_pwm4.dev_attr.attr, + NULL + } +}; + +static const struct attribute_group pc87427_group_pwm[4] = { + { .attrs = pc87427_attributes_pwm[0] }, + { .attrs = pc87427_attributes_pwm[1] }, + { .attrs = pc87427_attributes_pwm[2] }, + { .attrs = pc87427_attributes_pwm[3] }, +}; + +static ssize_t show_temp_input(struct device *dev, struct device_attribute + *devattr, char *buf) +{ + struct pc87427_data *data = pc87427_update_device(dev); + int nr = to_sensor_dev_attr(devattr)->index; + + return sprintf(buf, "%ld\n", temp_from_reg(data->temp[nr])); +} + +static ssize_t show_temp_min(struct device *dev, struct device_attribute + *devattr, char *buf) +{ + struct pc87427_data *data = pc87427_update_device(dev); + int nr = to_sensor_dev_attr(devattr)->index; + + return sprintf(buf, "%ld\n", temp_from_reg8(data->temp_min[nr])); +} + +static ssize_t show_temp_max(struct device *dev, struct device_attribute + *devattr, char *buf) +{ + struct pc87427_data *data = pc87427_update_device(dev); + int nr = to_sensor_dev_attr(devattr)->index; + + return sprintf(buf, "%ld\n", temp_from_reg8(data->temp_max[nr])); +} + +static ssize_t show_temp_crit(struct device *dev, struct device_attribute + *devattr, char *buf) +{ + struct pc87427_data *data = pc87427_update_device(dev); + int nr = to_sensor_dev_attr(devattr)->index; + + return sprintf(buf, "%ld\n", temp_from_reg8(data->temp_crit[nr])); +} + +static ssize_t show_temp_type(struct device *dev, struct device_attribute + *devattr, char *buf) +{ + struct pc87427_data *data = pc87427_update_device(dev); + int nr = to_sensor_dev_attr(devattr)->index; + + return sprintf(buf, "%u\n", temp_type_from_reg(data->temp_type[nr])); +} + +static ssize_t show_temp_min_alarm(struct device *dev, struct device_attribute + *devattr, char *buf) +{ + struct pc87427_data *data = pc87427_update_device(dev); + int nr = to_sensor_dev_attr(devattr)->index; + + return sprintf(buf, "%d\n", !!(data->temp_status[nr] + & TEMP_STATUS_LOWFLG)); +} + +static ssize_t show_temp_max_alarm(struct device *dev, struct device_attribute + *devattr, char *buf) +{ + struct pc87427_data *data = pc87427_update_device(dev); + int nr = to_sensor_dev_attr(devattr)->index; + + return sprintf(buf, "%d\n", !!(data->temp_status[nr] + & TEMP_STATUS_HIGHFLG)); +} + +static ssize_t show_temp_crit_alarm(struct device *dev, struct device_attribute + *devattr, char *buf) +{ + struct pc87427_data *data = pc87427_update_device(dev); + int nr = to_sensor_dev_attr(devattr)->index; + + return sprintf(buf, "%d\n", !!(data->temp_status[nr] + & TEMP_STATUS_CRITFLG)); +} + +static ssize_t show_temp_fault(struct device *dev, struct device_attribute + *devattr, char *buf) +{ + struct pc87427_data *data = pc87427_update_device(dev); + int nr = to_sensor_dev_attr(devattr)->index; + + return sprintf(buf, "%d\n", !!(data->temp_status[nr] + & TEMP_STATUS_SENSERR)); +} + +static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp_input, NULL, 0); +static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp_input, NULL, 1); +static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, show_temp_input, NULL, 2); +static SENSOR_DEVICE_ATTR(temp4_input, S_IRUGO, show_temp_input, NULL, 3); +static SENSOR_DEVICE_ATTR(temp5_input, S_IRUGO, show_temp_input, NULL, 4); +static SENSOR_DEVICE_ATTR(temp6_input, S_IRUGO, show_temp_input, NULL, 5); + +static SENSOR_DEVICE_ATTR(temp1_min, S_IRUGO, show_temp_min, NULL, 0); +static SENSOR_DEVICE_ATTR(temp2_min, S_IRUGO, show_temp_min, NULL, 1); +static SENSOR_DEVICE_ATTR(temp3_min, S_IRUGO, show_temp_min, NULL, 2); +static SENSOR_DEVICE_ATTR(temp4_min, S_IRUGO, show_temp_min, NULL, 3); +static SENSOR_DEVICE_ATTR(temp5_min, S_IRUGO, show_temp_min, NULL, 4); +static SENSOR_DEVICE_ATTR(temp6_min, S_IRUGO, show_temp_min, NULL, 5); + +static SENSOR_DEVICE_ATTR(temp1_max, S_IRUGO, show_temp_max, NULL, 0); +static SENSOR_DEVICE_ATTR(temp2_max, S_IRUGO, show_temp_max, NULL, 1); +static SENSOR_DEVICE_ATTR(temp3_max, S_IRUGO, show_temp_max, NULL, 2); +static SENSOR_DEVICE_ATTR(temp4_max, S_IRUGO, show_temp_max, NULL, 3); +static SENSOR_DEVICE_ATTR(temp5_max, S_IRUGO, show_temp_max, NULL, 4); +static SENSOR_DEVICE_ATTR(temp6_max, S_IRUGO, show_temp_max, NULL, 5); + +static SENSOR_DEVICE_ATTR(temp1_crit, S_IRUGO, show_temp_crit, NULL, 0); +static SENSOR_DEVICE_ATTR(temp2_crit, S_IRUGO, show_temp_crit, NULL, 1); +static SENSOR_DEVICE_ATTR(temp3_crit, S_IRUGO, show_temp_crit, NULL, 2); +static SENSOR_DEVICE_ATTR(temp4_crit, S_IRUGO, show_temp_crit, NULL, 3); +static SENSOR_DEVICE_ATTR(temp5_crit, S_IRUGO, show_temp_crit, NULL, 4); +static SENSOR_DEVICE_ATTR(temp6_crit, S_IRUGO, show_temp_crit, NULL, 5); + +static SENSOR_DEVICE_ATTR(temp1_type, S_IRUGO, show_temp_type, NULL, 0); +static SENSOR_DEVICE_ATTR(temp2_type, S_IRUGO, show_temp_type, NULL, 1); +static SENSOR_DEVICE_ATTR(temp3_type, S_IRUGO, show_temp_type, NULL, 2); +static SENSOR_DEVICE_ATTR(temp4_type, S_IRUGO, show_temp_type, NULL, 3); +static SENSOR_DEVICE_ATTR(temp5_type, S_IRUGO, show_temp_type, NULL, 4); +static SENSOR_DEVICE_ATTR(temp6_type, S_IRUGO, show_temp_type, NULL, 5); + +static SENSOR_DEVICE_ATTR(temp1_min_alarm, S_IRUGO, + show_temp_min_alarm, NULL, 0); +static SENSOR_DEVICE_ATTR(temp2_min_alarm, S_IRUGO, + show_temp_min_alarm, NULL, 1); +static SENSOR_DEVICE_ATTR(temp3_min_alarm, S_IRUGO, + show_temp_min_alarm, NULL, 2); +static SENSOR_DEVICE_ATTR(temp4_min_alarm, S_IRUGO, + show_temp_min_alarm, NULL, 3); +static SENSOR_DEVICE_ATTR(temp5_min_alarm, S_IRUGO, + show_temp_min_alarm, NULL, 4); +static SENSOR_DEVICE_ATTR(temp6_min_alarm, S_IRUGO, + show_temp_min_alarm, NULL, 5); + +static SENSOR_DEVICE_ATTR(temp1_max_alarm, S_IRUGO, + show_temp_max_alarm, NULL, 0); +static SENSOR_DEVICE_ATTR(temp2_max_alarm, S_IRUGO, + show_temp_max_alarm, NULL, 1); +static SENSOR_DEVICE_ATTR(temp3_max_alarm, S_IRUGO, + show_temp_max_alarm, NULL, 2); +static SENSOR_DEVICE_ATTR(temp4_max_alarm, S_IRUGO, + show_temp_max_alarm, NULL, 3); +static SENSOR_DEVICE_ATTR(temp5_max_alarm, S_IRUGO, + show_temp_max_alarm, NULL, 4); +static SENSOR_DEVICE_ATTR(temp6_max_alarm, S_IRUGO, + show_temp_max_alarm, NULL, 5); + +static SENSOR_DEVICE_ATTR(temp1_crit_alarm, S_IRUGO, + show_temp_crit_alarm, NULL, 0); +static SENSOR_DEVICE_ATTR(temp2_crit_alarm, S_IRUGO, + show_temp_crit_alarm, NULL, 1); +static SENSOR_DEVICE_ATTR(temp3_crit_alarm, S_IRUGO, + show_temp_crit_alarm, NULL, 2); +static SENSOR_DEVICE_ATTR(temp4_crit_alarm, S_IRUGO, + show_temp_crit_alarm, NULL, 3); +static SENSOR_DEVICE_ATTR(temp5_crit_alarm, S_IRUGO, + show_temp_crit_alarm, NULL, 4); +static SENSOR_DEVICE_ATTR(temp6_crit_alarm, S_IRUGO, + show_temp_crit_alarm, NULL, 5); + +static SENSOR_DEVICE_ATTR(temp1_fault, S_IRUGO, show_temp_fault, NULL, 0); +static SENSOR_DEVICE_ATTR(temp2_fault, S_IRUGO, show_temp_fault, NULL, 1); +static SENSOR_DEVICE_ATTR(temp3_fault, S_IRUGO, show_temp_fault, NULL, 2); +static SENSOR_DEVICE_ATTR(temp4_fault, S_IRUGO, show_temp_fault, NULL, 3); +static SENSOR_DEVICE_ATTR(temp5_fault, S_IRUGO, show_temp_fault, NULL, 4); +static SENSOR_DEVICE_ATTR(temp6_fault, S_IRUGO, show_temp_fault, NULL, 5); + +static struct attribute *pc87427_attributes_temp[6][10] = { + { + &sensor_dev_attr_temp1_input.dev_attr.attr, + &sensor_dev_attr_temp1_min.dev_attr.attr, + &sensor_dev_attr_temp1_max.dev_attr.attr, + &sensor_dev_attr_temp1_crit.dev_attr.attr, + &sensor_dev_attr_temp1_type.dev_attr.attr, + &sensor_dev_attr_temp1_min_alarm.dev_attr.attr, + &sensor_dev_attr_temp1_max_alarm.dev_attr.attr, + &sensor_dev_attr_temp1_crit_alarm.dev_attr.attr, + &sensor_dev_attr_temp1_fault.dev_attr.attr, + NULL + }, { + &sensor_dev_attr_temp2_input.dev_attr.attr, + &sensor_dev_attr_temp2_min.dev_attr.attr, + &sensor_dev_attr_temp2_max.dev_attr.attr, + &sensor_dev_attr_temp2_crit.dev_attr.attr, + &sensor_dev_attr_temp2_type.dev_attr.attr, + &sensor_dev_attr_temp2_min_alarm.dev_attr.attr, + &sensor_dev_attr_temp2_max_alarm.dev_attr.attr, + &sensor_dev_attr_temp2_crit_alarm.dev_attr.attr, + &sensor_dev_attr_temp2_fault.dev_attr.attr, + NULL + }, { + &sensor_dev_attr_temp3_input.dev_attr.attr, + &sensor_dev_attr_temp3_min.dev_attr.attr, + &sensor_dev_attr_temp3_max.dev_attr.attr, + &sensor_dev_attr_temp3_crit.dev_attr.attr, + &sensor_dev_attr_temp3_type.dev_attr.attr, + &sensor_dev_attr_temp3_min_alarm.dev_attr.attr, + &sensor_dev_attr_temp3_max_alarm.dev_attr.attr, + &sensor_dev_attr_temp3_crit_alarm.dev_attr.attr, + &sensor_dev_attr_temp3_fault.dev_attr.attr, + NULL + }, { + &sensor_dev_attr_temp4_input.dev_attr.attr, + &sensor_dev_attr_temp4_min.dev_attr.attr, + &sensor_dev_attr_temp4_max.dev_attr.attr, + &sensor_dev_attr_temp4_crit.dev_attr.attr, + &sensor_dev_attr_temp4_type.dev_attr.attr, + &sensor_dev_attr_temp4_min_alarm.dev_attr.attr, + &sensor_dev_attr_temp4_max_alarm.dev_attr.attr, + &sensor_dev_attr_temp4_crit_alarm.dev_attr.attr, + &sensor_dev_attr_temp4_fault.dev_attr.attr, + NULL + }, { + &sensor_dev_attr_temp5_input.dev_attr.attr, + &sensor_dev_attr_temp5_min.dev_attr.attr, + &sensor_dev_attr_temp5_max.dev_attr.attr, + &sensor_dev_attr_temp5_crit.dev_attr.attr, + &sensor_dev_attr_temp5_type.dev_attr.attr, + &sensor_dev_attr_temp5_min_alarm.dev_attr.attr, + &sensor_dev_attr_temp5_max_alarm.dev_attr.attr, + &sensor_dev_attr_temp5_crit_alarm.dev_attr.attr, + &sensor_dev_attr_temp5_fault.dev_attr.attr, + NULL + }, { + &sensor_dev_attr_temp6_input.dev_attr.attr, + &sensor_dev_attr_temp6_min.dev_attr.attr, + &sensor_dev_attr_temp6_max.dev_attr.attr, + &sensor_dev_attr_temp6_crit.dev_attr.attr, + &sensor_dev_attr_temp6_type.dev_attr.attr, + &sensor_dev_attr_temp6_min_alarm.dev_attr.attr, + &sensor_dev_attr_temp6_max_alarm.dev_attr.attr, + &sensor_dev_attr_temp6_crit_alarm.dev_attr.attr, + &sensor_dev_attr_temp6_fault.dev_attr.attr, + NULL + } +}; + +static const struct attribute_group pc87427_group_temp[6] = { + { .attrs = pc87427_attributes_temp[0] }, + { .attrs = pc87427_attributes_temp[1] }, + { .attrs = pc87427_attributes_temp[2] }, + { .attrs = pc87427_attributes_temp[3] }, + { .attrs = pc87427_attributes_temp[4] }, + { .attrs = pc87427_attributes_temp[5] }, +}; + static ssize_t show_name(struct device *dev, struct device_attribute *devattr, char *buf) { @@ -391,8 +938,49 @@ static DEVICE_ATTR(name, S_IRUGO, show_name, NULL); * Device detection, attach and detach */ +static void pc87427_release_regions(struct platform_device *pdev, int count) +{ + struct resource *res; + int i; + + for (i = 0; i < count; i++) { + res = platform_get_resource(pdev, IORESOURCE_IO, i); + release_region(res->start, resource_size(res)); + } +} + +static int __devinit pc87427_request_regions(struct platform_device *pdev, + int count) +{ + struct resource *res; + int i, err = 0; + + for (i = 0; i < count; i++) { + res = platform_get_resource(pdev, IORESOURCE_IO, i); + if (!res) { + err = -ENOENT; + dev_err(&pdev->dev, "Missing resource #%d\n", i); + break; + } + if (!request_region(res->start, resource_size(res), DRVNAME)) { + err = -EBUSY; + dev_err(&pdev->dev, + "Failed to request region 0x%lx-0x%lx\n", + (unsigned long)res->start, + (unsigned long)res->end); + break; + } + } + + if (err && i) + pc87427_release_regions(pdev, i); + + return err; +} + static void __devinit pc87427_init_device(struct device *dev) { + struct pc87427_sio_data *sio_data = dev->platform_data; struct pc87427_data *data = dev_get_drvdata(dev); int i; u8 reg; @@ -400,10 +988,12 @@ static void __devinit pc87427_init_device(struct device *dev) /* The FMC module should be ready */ reg = pc87427_read8(data, LD_FAN, PC87427_REG_BANK); if (!(reg & 0x80)) - dev_warn(dev, "FMC module not ready!\n"); + dev_warn(dev, "%s module not ready!\n", "FMC"); /* Check which fans are enabled */ for (i = 0; i < 8; i++) { + if (!(sio_data->has_fanin & (1 << i))) /* Not wired */ + continue; reg = pc87427_read8_bank(data, LD_FAN, BANK_FM(i), PC87427_REG_FAN_STATUS); if (reg & FAN_STATUS_MONEN) @@ -411,37 +1001,93 @@ static void __devinit pc87427_init_device(struct device *dev) } if (!data->fan_enabled) { - dev_dbg(dev, "Enabling all fan inputs\n"); - for (i = 0; i < 8; i++) + dev_dbg(dev, "Enabling monitoring of all fans\n"); + for (i = 0; i < 8; i++) { + if (!(sio_data->has_fanin & (1 << i))) /* Not wired */ + continue; pc87427_write8_bank(data, LD_FAN, BANK_FM(i), PC87427_REG_FAN_STATUS, FAN_STATUS_MONEN); - data->fan_enabled = 0xff; + } + data->fan_enabled = sio_data->has_fanin; + } + + /* Check which PWM outputs are enabled */ + for (i = 0; i < 4; i++) { + if (!(sio_data->has_fanout & (1 << i))) /* Not wired */ + continue; + reg = pc87427_read8_bank(data, LD_FAN, BANK_FC(i), + PC87427_REG_PWM_ENABLE); + if (reg & PWM_ENABLE_CTLEN) + data->pwm_enabled |= (1 << i); + + /* We don't expose an interface to reconfigure the automatic + fan control mode, so only allow to return to this mode if + it was originally set. */ + if ((reg & PWM_ENABLE_MODE_MASK) == PWM_MODE_AUTO) { + dev_dbg(dev, "PWM%d is in automatic control mode\n", + i + 1); + data->pwm_auto_ok |= (1 << i); + } + } + + /* The HMC module should be ready */ + reg = pc87427_read8(data, LD_TEMP, PC87427_REG_BANK); + if (!(reg & 0x80)) + dev_warn(dev, "%s module not ready!\n", "HMC"); + + /* Check which temperature channels are enabled */ + for (i = 0; i < 6; i++) { + reg = pc87427_read8_bank(data, LD_TEMP, BANK_TM(i), + PC87427_REG_TEMP_STATUS); + if (reg & TEMP_STATUS_CHANEN) + data->temp_enabled |= (1 << i); + } +} + +static void pc87427_remove_files(struct device *dev) +{ + struct pc87427_data *data = dev_get_drvdata(dev); + int i; + + device_remove_file(dev, &dev_attr_name); + for (i = 0; i < 8; i++) { + if (!(data->fan_enabled & (1 << i))) + continue; + sysfs_remove_group(&dev->kobj, &pc87427_group_fan[i]); + } + for (i = 0; i < 4; i++) { + if (!(data->pwm_enabled & (1 << i))) + continue; + sysfs_remove_group(&dev->kobj, &pc87427_group_pwm[i]); + } + for (i = 0; i < 6; i++) { + if (!(data->temp_enabled & (1 << i))) + continue; + sysfs_remove_group(&dev->kobj, &pc87427_group_temp[i]); } } static int __devinit pc87427_probe(struct platform_device *pdev) { + struct pc87427_sio_data *sio_data = pdev->dev.platform_data; struct pc87427_data *data; - struct resource *res; - int i, err; + int i, err, res_count; - if (!(data = kzalloc(sizeof(struct pc87427_data), GFP_KERNEL))) { + data = kzalloc(sizeof(struct pc87427_data), GFP_KERNEL); + if (!data) { err = -ENOMEM; printk(KERN_ERR DRVNAME ": Out of memory\n"); goto exit; } - /* This will need to be revisited when we add support for - temperature and voltage monitoring. */ - res = platform_get_resource(pdev, IORESOURCE_IO, 0); - if (!request_region(res->start, resource_size(res), DRVNAME)) { - err = -EBUSY; - dev_err(&pdev->dev, "Failed to request region 0x%lx-0x%lx\n", - (unsigned long)res->start, (unsigned long)res->end); + data->address[0] = sio_data->address[0]; + data->address[1] = sio_data->address[1]; + res_count = (data->address[0] != 0) + (data->address[1] != 0); + + err = pc87427_request_regions(pdev, res_count); + if (err) goto exit_kfree; - } - data->address[0] = res->start; mutex_init(&data->lock); data->name = "pc87427"; @@ -449,13 +1095,31 @@ static int __devinit pc87427_probe(struct platform_device *pdev) pc87427_init_device(&pdev->dev); /* Register sysfs hooks */ - if ((err = device_create_file(&pdev->dev, &dev_attr_name))) + err = device_create_file(&pdev->dev, &dev_attr_name); + if (err) goto exit_release_region; for (i = 0; i < 8; i++) { if (!(data->fan_enabled & (1 << i))) continue; - if ((err = sysfs_create_group(&pdev->dev.kobj, - &pc87427_group_fan[i]))) + err = sysfs_create_group(&pdev->dev.kobj, + &pc87427_group_fan[i]); + if (err) + goto exit_remove_files; + } + for (i = 0; i < 4; i++) { + if (!(data->pwm_enabled & (1 << i))) + continue; + err = sysfs_create_group(&pdev->dev.kobj, + &pc87427_group_pwm[i]); + if (err) + goto exit_remove_files; + } + for (i = 0; i < 6; i++) { + if (!(data->temp_enabled & (1 << i))) + continue; + err = sysfs_create_group(&pdev->dev.kobj, + &pc87427_group_temp[i]); + if (err) goto exit_remove_files; } @@ -469,13 +1133,9 @@ static int __devinit pc87427_probe(struct platform_device *pdev) return 0; exit_remove_files: - for (i = 0; i < 8; i++) { - if (!(data->fan_enabled & (1 << i))) - continue; - sysfs_remove_group(&pdev->dev.kobj, &pc87427_group_fan[i]); - } + pc87427_remove_files(&pdev->dev); exit_release_region: - release_region(res->start, resource_size(res)); + pc87427_release_regions(pdev, res_count); exit_kfree: platform_set_drvdata(pdev, NULL); kfree(data); @@ -486,21 +1146,16 @@ exit: static int __devexit pc87427_remove(struct platform_device *pdev) { struct pc87427_data *data = platform_get_drvdata(pdev); - struct resource *res; - int i; + int res_count; + + res_count = (data->address[0] != 0) + (data->address[1] != 0); hwmon_device_unregister(data->hwmon_dev); - device_remove_file(&pdev->dev, &dev_attr_name); - for (i = 0; i < 8; i++) { - if (!(data->fan_enabled & (1 << i))) - continue; - sysfs_remove_group(&pdev->dev.kobj, &pc87427_group_fan[i]); - } + pc87427_remove_files(&pdev->dev); platform_set_drvdata(pdev, NULL); kfree(data); - res = platform_get_resource(pdev, IORESOURCE_IO, 0); - release_region(res->start, resource_size(res)); + pc87427_release_regions(pdev, res_count); return 0; } @@ -515,34 +1170,50 @@ static struct platform_driver pc87427_driver = { .remove = __devexit_p(pc87427_remove), }; -static int __init pc87427_device_add(unsigned short address) +static int __init pc87427_device_add(const struct pc87427_sio_data *sio_data) { - struct resource res = { - .start = address, - .end = address + REGION_LENGTH - 1, - .name = logdev_str[0], - .flags = IORESOURCE_IO, + struct resource res[2] = { + { .flags = IORESOURCE_IO }, + { .flags = IORESOURCE_IO }, }; - int err; + int err, i, res_count; - err = acpi_check_resource_conflict(&res); - if (err) - goto exit; + res_count = 0; + for (i = 0; i < 2; i++) { + if (!sio_data->address[i]) + continue; + res[res_count].start = sio_data->address[i]; + res[res_count].end = sio_data->address[i] + REGION_LENGTH - 1; + res[res_count].name = logdev_str[i]; - pdev = platform_device_alloc(DRVNAME, address); + err = acpi_check_resource_conflict(&res[res_count]); + if (err) + goto exit; + + res_count++; + } + + pdev = platform_device_alloc(DRVNAME, res[0].start); if (!pdev) { err = -ENOMEM; printk(KERN_ERR DRVNAME ": Device allocation failed\n"); goto exit; } - err = platform_device_add_resources(pdev, &res, 1); + err = platform_device_add_resources(pdev, res, res_count); if (err) { printk(KERN_ERR DRVNAME ": Device resource addition failed " "(%d)\n", err); goto exit_device_put; } + err = platform_device_add_data(pdev, sio_data, + sizeof(struct pc87427_sio_data)); + if (err) { + printk(KERN_ERR DRVNAME ": Platform data allocation failed\n"); + goto exit_device_put; + } + err = platform_device_add(pdev); if (err) { printk(KERN_ERR DRVNAME ": Device addition failed (%d)\n", @@ -558,9 +1229,10 @@ exit: return err; } -static int __init pc87427_find(int sioaddr, unsigned short *address) +static int __init pc87427_find(int sioaddr, struct pc87427_sio_data *sio_data) { u16 val; + u8 cfg, cfg_b; int i, err = 0; /* Identify device */ @@ -571,7 +1243,7 @@ static int __init pc87427_find(int sioaddr, unsigned short *address) } for (i = 0; i < 2; i++) { - address[i] = 0; + sio_data->address[i] = 0; /* Select logical device */ superio_outb(sioaddr, SIOREG_LDSEL, logdev[i]); @@ -596,9 +1268,58 @@ static int __init pc87427_find(int sioaddr, unsigned short *address) "for logical device 0x%02x\n", logdev[i]); continue; } - address[i] = val; + sio_data->address[i] = val; } + /* No point in loading the driver if everything is disabled */ + if (!sio_data->address[0] && !sio_data->address[1]) { + err = -ENODEV; + goto exit; + } + + /* Check which fan inputs are wired */ + sio_data->has_fanin = (1 << 2) | (1 << 3); /* FANIN2, FANIN3 */ + + cfg = superio_inb(sioaddr, SIOREG_CF2); + if (!(cfg & (1 << 3))) + sio_data->has_fanin |= (1 << 0); /* FANIN0 */ + if (!(cfg & (1 << 2))) + sio_data->has_fanin |= (1 << 4); /* FANIN4 */ + + cfg = superio_inb(sioaddr, SIOREG_CFD); + if (!(cfg & (1 << 0))) + sio_data->has_fanin |= (1 << 1); /* FANIN1 */ + + cfg = superio_inb(sioaddr, SIOREG_CF4); + if (!(cfg & (1 << 0))) + sio_data->has_fanin |= (1 << 7); /* FANIN7 */ + cfg_b = superio_inb(sioaddr, SIOREG_CFB); + if (!(cfg & (1 << 1)) && (cfg_b & (1 << 3))) + sio_data->has_fanin |= (1 << 5); /* FANIN5 */ + cfg = superio_inb(sioaddr, SIOREG_CF3); + if ((cfg & (1 << 3)) && !(cfg_b & (1 << 5))) + sio_data->has_fanin |= (1 << 6); /* FANIN6 */ + + /* Check which fan outputs are wired */ + sio_data->has_fanout = (1 << 0); /* FANOUT0 */ + if (cfg_b & (1 << 0)) + sio_data->has_fanout |= (1 << 3); /* FANOUT3 */ + + cfg = superio_inb(sioaddr, SIOREG_CFC); + if (!(cfg & (1 << 4))) { + if (cfg_b & (1 << 1)) + sio_data->has_fanout |= (1 << 1); /* FANOUT1 */ + if (cfg_b & (1 << 2)) + sio_data->has_fanout |= (1 << 2); /* FANOUT2 */ + } + + /* FANOUT1 and FANOUT2 can each be routed to 2 different pins */ + cfg = superio_inb(sioaddr, SIOREG_CF5); + if (cfg & (1 << 6)) + sio_data->has_fanout |= (1 << 1); /* FANOUT1 */ + if (cfg & (1 << 5)) + sio_data->has_fanout |= (1 << 2); /* FANOUT2 */ + exit: superio_exit(sioaddr); return err; @@ -607,15 +1328,10 @@ exit: static int __init pc87427_init(void) { int err; - unsigned short address[2]; - - if (pc87427_find(0x2e, address) - && pc87427_find(0x4e, address)) - return -ENODEV; + struct pc87427_sio_data sio_data; - /* For now the driver only handles fans so we only care about the - first address. */ - if (!address[0]) + if (pc87427_find(0x2e, &sio_data) + && pc87427_find(0x4e, &sio_data)) return -ENODEV; err = platform_driver_register(&pc87427_driver); @@ -623,7 +1339,7 @@ static int __init pc87427_init(void) goto exit; /* Sets global pdev as a side effect */ - err = pc87427_device_add(address[0]); + err = pc87427_device_add(&sio_data); if (err) goto exit_driver; diff --git a/drivers/hwmon/via-cputemp.c b/drivers/hwmon/via-cputemp.c index 7442cf7..ffb793a 100644 --- a/drivers/hwmon/via-cputemp.c +++ b/drivers/hwmon/via-cputemp.c @@ -39,7 +39,7 @@ #define DRVNAME "via_cputemp" -enum { SHOW_TEMP, SHOW_LABEL, SHOW_NAME } SHOW; +enum { SHOW_TEMP, SHOW_LABEL, SHOW_NAME }; /* * Functions declaration diff --git a/drivers/hwmon/w83627ehf.c b/drivers/hwmon/w83627ehf.c index 0dcaba9..e96e69d 100644 --- a/drivers/hwmon/w83627ehf.c +++ b/drivers/hwmon/w83627ehf.c @@ -39,6 +39,7 @@ w83627dhg 9 5 4 3 0xa020 0xc1 0x5ca3 w83627dhg-p 9 5 4 3 0xb070 0xc1 0x5ca3 w83667hg 9 5 3 3 0xa510 0xc1 0x5ca3 + w83667hg-b 9 5 3 3 0xb350 0xc1 0x5ca3 */ #include <linux/module.h> @@ -55,7 +56,7 @@ #include <linux/io.h> #include "lm75.h" -enum kinds { w83627ehf, w83627dhg, w83627dhg_p, w83667hg }; +enum kinds { w83627ehf, w83627dhg, w83627dhg_p, w83667hg, w83667hg_b }; /* used to set data->name = w83627ehf_device_names[data->sio_kind] */ static const char * w83627ehf_device_names[] = { @@ -63,6 +64,7 @@ static const char * w83627ehf_device_names[] = { "w83627dhg", "w83627dhg", "w83667hg", + "w83667hg", }; static unsigned short force_id; @@ -91,6 +93,7 @@ MODULE_PARM_DESC(force_id, "Override the detected device ID"); #define SIO_W83627DHG_ID 0xa020 #define SIO_W83627DHG_P_ID 0xb070 #define SIO_W83667HG_ID 0xa510 +#define SIO_W83667HG_B_ID 0xb350 #define SIO_ID_MASK 0xFFF0 static inline void @@ -201,8 +204,14 @@ static const u8 W83627EHF_REG_TOLERANCE[] = { 0x07, 0x07, 0x14, 0x62 }; static const u8 W83627EHF_REG_FAN_START_OUTPUT[] = { 0x0a, 0x0b, 0x16, 0x65 }; static const u8 W83627EHF_REG_FAN_STOP_OUTPUT[] = { 0x08, 0x09, 0x15, 0x64 }; static const u8 W83627EHF_REG_FAN_STOP_TIME[] = { 0x0c, 0x0d, 0x17, 0x66 }; -static const u8 W83627EHF_REG_FAN_MAX_OUTPUT[] = { 0xff, 0x67, 0xff, 0x69 }; -static const u8 W83627EHF_REG_FAN_STEP_OUTPUT[] = { 0xff, 0x68, 0xff, 0x6a }; + +static const u8 W83627EHF_REG_FAN_MAX_OUTPUT_COMMON[] + = { 0xff, 0x67, 0xff, 0x69 }; +static const u8 W83627EHF_REG_FAN_STEP_OUTPUT_COMMON[] + = { 0xff, 0x68, 0xff, 0x6a }; + +static const u8 W83627EHF_REG_FAN_MAX_OUTPUT_W83667_B[] = { 0x67, 0x69, 0x6b }; +static const u8 W83627EHF_REG_FAN_STEP_OUTPUT_W83667_B[] = { 0x68, 0x6a, 0x6c }; /* * Conversions @@ -277,6 +286,11 @@ struct w83627ehf_data { struct device *hwmon_dev; struct mutex lock; + const u8 *REG_FAN_START_OUTPUT; + const u8 *REG_FAN_STOP_OUTPUT; + const u8 *REG_FAN_MAX_OUTPUT; + const u8 *REG_FAN_STEP_OUTPUT; + struct mutex update_lock; char valid; /* !=0 if following fields are valid */ unsigned long last_updated; /* In jiffies */ @@ -524,7 +538,10 @@ static struct w83627ehf_data *w83627ehf_update_device(struct device *dev) } } - for (i = 0; i < 4; i++) { + for (i = 0; i < data->pwm_num; i++) { + if (!(data->has_fan & (1 << i))) + continue; + /* pwmcfg, tolerance mapped for i=0, i=1 to same reg */ if (i != 1) { pwmcfg = w83627ehf_read_value(data, @@ -546,6 +563,17 @@ static struct w83627ehf_data *w83627ehf_update_device(struct device *dev) W83627EHF_REG_FAN_STOP_OUTPUT[i]); data->fan_stop_time[i] = w83627ehf_read_value(data, W83627EHF_REG_FAN_STOP_TIME[i]); + + if (data->REG_FAN_MAX_OUTPUT[i] != 0xff) + data->fan_max_output[i] = + w83627ehf_read_value(data, + data->REG_FAN_MAX_OUTPUT[i]); + + if (data->REG_FAN_STEP_OUTPUT[i] != 0xff) + data->fan_step_output[i] = + w83627ehf_read_value(data, + data->REG_FAN_STEP_OUTPUT[i]); + data->target_temp[i] = w83627ehf_read_value(data, W83627EHF_REG_TARGET[i]) & @@ -1126,7 +1154,7 @@ store_##reg(struct device *dev, struct device_attribute *attr, \ u32 val = SENSORS_LIMIT(simple_strtoul(buf, NULL, 10), 1, 255); \ mutex_lock(&data->update_lock); \ data->reg[nr] = val; \ - w83627ehf_write_value(data, W83627EHF_REG_##REG[nr], val); \ + w83627ehf_write_value(data, data->REG_##REG[nr], val); \ mutex_unlock(&data->update_lock); \ return count; \ } @@ -1206,12 +1234,26 @@ static struct sensor_device_attribute sda_sf3_arrays[] = { store_fan_stop_output, 1), SENSOR_ATTR(pwm3_stop_output, S_IWUSR | S_IRUGO, show_fan_stop_output, store_fan_stop_output, 2), +}; - /* pwm1 and pwm3 don't support max and step settings */ + +/* + * pwm1 and pwm3 don't support max and step settings on all chips. + * Need to check support while generating/removing attribute files. + */ +static struct sensor_device_attribute sda_sf3_max_step_arrays[] = { + SENSOR_ATTR(pwm1_max_output, S_IWUSR | S_IRUGO, show_fan_max_output, + store_fan_max_output, 0), + SENSOR_ATTR(pwm1_step_output, S_IWUSR | S_IRUGO, show_fan_step_output, + store_fan_step_output, 0), SENSOR_ATTR(pwm2_max_output, S_IWUSR | S_IRUGO, show_fan_max_output, store_fan_max_output, 1), SENSOR_ATTR(pwm2_step_output, S_IWUSR | S_IRUGO, show_fan_step_output, store_fan_step_output, 1), + SENSOR_ATTR(pwm3_max_output, S_IWUSR | S_IRUGO, show_fan_max_output, + store_fan_max_output, 2), + SENSOR_ATTR(pwm3_step_output, S_IWUSR | S_IRUGO, show_fan_step_output, + store_fan_step_output, 2), }; static ssize_t @@ -1235,6 +1277,12 @@ static void w83627ehf_device_remove_files(struct device *dev) for (i = 0; i < ARRAY_SIZE(sda_sf3_arrays); i++) device_remove_file(dev, &sda_sf3_arrays[i].dev_attr); + for (i = 0; i < ARRAY_SIZE(sda_sf3_max_step_arrays); i++) { + struct sensor_device_attribute *attr = + &sda_sf3_max_step_arrays[i]; + if (data->REG_FAN_STEP_OUTPUT[attr->index] != 0xff) + device_remove_file(dev, &attr->dev_attr); + } for (i = 0; i < ARRAY_SIZE(sda_sf3_arrays_fan4); i++) device_remove_file(dev, &sda_sf3_arrays_fan4[i].dev_attr); for (i = 0; i < data->in_num; i++) { @@ -1343,22 +1391,37 @@ static int __devinit w83627ehf_probe(struct platform_device *pdev) /* 627EHG and 627EHF have 10 voltage inputs; 627DHG and 667HG have 9 */ data->in_num = (sio_data->kind == w83627ehf) ? 10 : 9; /* 667HG has 3 pwms */ - data->pwm_num = (sio_data->kind == w83667hg) ? 3 : 4; + data->pwm_num = (sio_data->kind == w83667hg + || sio_data->kind == w83667hg_b) ? 3 : 4; /* Check temp3 configuration bit for 667HG */ - if (sio_data->kind == w83667hg) { + if (sio_data->kind == w83667hg || sio_data->kind == w83667hg_b) { data->temp3_disable = w83627ehf_read_value(data, W83627EHF_REG_TEMP_CONFIG[1]) & 0x01; data->in6_skip = !data->temp3_disable; } + data->REG_FAN_START_OUTPUT = W83627EHF_REG_FAN_START_OUTPUT; + data->REG_FAN_STOP_OUTPUT = W83627EHF_REG_FAN_STOP_OUTPUT; + if (sio_data->kind == w83667hg_b) { + data->REG_FAN_MAX_OUTPUT = + W83627EHF_REG_FAN_MAX_OUTPUT_W83667_B; + data->REG_FAN_STEP_OUTPUT = + W83627EHF_REG_FAN_STEP_OUTPUT_W83667_B; + } else { + data->REG_FAN_MAX_OUTPUT = + W83627EHF_REG_FAN_MAX_OUTPUT_COMMON; + data->REG_FAN_STEP_OUTPUT = + W83627EHF_REG_FAN_STEP_OUTPUT_COMMON; + } + /* Initialize the chip */ w83627ehf_init_device(data); data->vrm = vid_which_vrm(); superio_enter(sio_data->sioreg); /* Read VID value */ - if (sio_data->kind == w83667hg) { + if (sio_data->kind == w83667hg || sio_data->kind == w83667hg_b) { /* W83667HG has different pins for VID input and output, so we can get the VID input values directly at logical device D 0xe3. */ @@ -1409,7 +1472,7 @@ static int __devinit w83627ehf_probe(struct platform_device *pdev) } /* fan4 and fan5 share some pins with the GPIO and serial flash */ - if (sio_data->kind == w83667hg) { + if (sio_data->kind == w83667hg || sio_data->kind == w83667hg_b) { fan5pin = superio_inb(sio_data->sioreg, 0x27) & 0x20; fan4pin = superio_inb(sio_data->sioreg, 0x27) & 0x40; } else { @@ -1440,6 +1503,15 @@ static int __devinit w83627ehf_probe(struct platform_device *pdev) &sda_sf3_arrays[i].dev_attr))) goto exit_remove; + for (i = 0; i < ARRAY_SIZE(sda_sf3_max_step_arrays); i++) { + struct sensor_device_attribute *attr = + &sda_sf3_max_step_arrays[i]; + if (data->REG_FAN_STEP_OUTPUT[attr->index] != 0xff) { + err = device_create_file(dev, &attr->dev_attr); + if (err) + goto exit_remove; + } + } /* if fan4 is enabled create the sf3 files for it */ if ((data->has_fan & (1 << 3)) && data->pwm_num >= 4) for (i = 0; i < ARRAY_SIZE(sda_sf3_arrays_fan4); i++) { @@ -1556,6 +1628,7 @@ static int __init w83627ehf_find(int sioaddr, unsigned short *addr, static const char __initdata sio_name_W83627DHG[] = "W83627DHG"; static const char __initdata sio_name_W83627DHG_P[] = "W83627DHG-P"; static const char __initdata sio_name_W83667HG[] = "W83667HG"; + static const char __initdata sio_name_W83667HG_B[] = "W83667HG-B"; u16 val; const char *sio_name; @@ -1588,6 +1661,10 @@ static int __init w83627ehf_find(int sioaddr, unsigned short *addr, sio_data->kind = w83667hg; sio_name = sio_name_W83667HG; break; + case SIO_W83667HG_B_ID: + sio_data->kind = w83667hg_b; + sio_name = sio_name_W83667HG_B; + break; default: if (val != 0xffff) pr_debug(DRVNAME ": unsupported chip ID: 0x%04x\n", diff --git a/include/linux/i2c/ltc4245.h b/include/linux/i2c/ltc4245.h new file mode 100644 index 0000000..56bda4b --- /dev/null +++ b/include/linux/i2c/ltc4245.h @@ -0,0 +1,21 @@ +/* + * Platform Data for LTC4245 hardware monitor chip + * + * Copyright (c) 2010 Ira W. Snyder <iws@ovro.caltech.edu> + * + * 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. + */ + +#ifndef LINUX_LTC4245_H +#define LINUX_LTC4245_H + +#include <linux/types.h> + +struct ltc4245_platform_data { + bool use_extra_gpios; +}; + +#endif /* LINUX_LTC4245_H */ |
