diff options
| -rw-r--r-- | Documentation/hwmon/it87 | 10 | ||||
| -rw-r--r-- | Documentation/hwmon/sysfs-interface | 15 | ||||
| -rw-r--r-- | Documentation/hwmon/w83627ehf | 54 | ||||
| -rw-r--r-- | MAINTAINERS | 6 | ||||
| -rw-r--r-- | drivers/hwmon/Kconfig | 11 | ||||
| -rw-r--r-- | drivers/hwmon/Makefile | 1 | ||||
| -rw-r--r-- | drivers/hwmon/abituguru.c | 30 | ||||
| -rw-r--r-- | drivers/hwmon/adm1026.c | 1 | ||||
| -rw-r--r-- | drivers/hwmon/adm1029.c | 508 | ||||
| -rw-r--r-- | drivers/hwmon/f71805f.c | 30 | ||||
| -rw-r--r-- | drivers/hwmon/hwmon.c | 2 | ||||
| -rw-r--r-- | drivers/hwmon/it87.c | 84 | ||||
| -rw-r--r-- | drivers/hwmon/lm70.c | 2 | ||||
| -rw-r--r-- | drivers/hwmon/lm78.c | 6 | ||||
| -rw-r--r-- | drivers/hwmon/lm85.c | 8 | ||||
| -rw-r--r-- | drivers/hwmon/sis5595.c | 6 | ||||
| -rw-r--r-- | drivers/hwmon/via686a.c | 5 | ||||
| -rw-r--r-- | drivers/hwmon/vt1211.c | 58 | ||||
| -rw-r--r-- | drivers/hwmon/w83627ehf.c | 54 | ||||
| -rw-r--r-- | drivers/hwmon/w83627hf.c | 5 | ||||
| -rw-r--r-- | drivers/hwmon/w83781d.c | 10 |
21 files changed, 769 insertions, 137 deletions
diff --git a/Documentation/hwmon/it87 b/Documentation/hwmon/it87 index 74a80992d23..c0528d6f9ac 100644 --- a/Documentation/hwmon/it87 +++ b/Documentation/hwmon/it87 @@ -135,6 +135,16 @@ Give 0 for unused sensor. Any other value is invalid. To configure this at startup, consult lm_sensors's /etc/sensors.conf. (2 = thermistor; 3 = thermal diode) + +Fan speed control +----------------- + The fan speed control features are limited to manual PWM mode. Automatic "Smart Guardian" mode control handling is not implemented. However if you want to go for "manual mode" just write 1 to pwmN_enable. + +If you are only able to control the fan speed with very small PWM values, +try lowering the PWM base frequency (pwm1_freq). Depending on the fan, +it may give you a somewhat greater control range. The same frequency is +used to drive all fan outputs, which is why pwm2_freq and pwm3_freq are +read-only. diff --git a/Documentation/hwmon/sysfs-interface b/Documentation/hwmon/sysfs-interface index efef3b962cd..d73d2e8c753 100644 --- a/Documentation/hwmon/sysfs-interface +++ b/Documentation/hwmon/sysfs-interface @@ -166,16 +166,21 @@ pwm[1-*] Pulse width modulation fan control. pwm[1-*]_enable Switch PWM on and off. - Not always present even if fan*_pwm is. + Not always present even if pwmN is. 0: turn off 1: turn on in manual mode 2+: turn on in automatic mode - Check individual chip documentation files for automatic mode details. + Check individual chip documentation files for automatic mode + details. RW -pwm[1-*]_mode - 0: DC mode - 1: PWM mode +pwm[1-*]_mode 0: DC mode (direct current) + 1: PWM mode (pulse-width modulation) + RW + +pwm[1-*]_freq Base PWM frequency in Hz. + Only possibly available when pwmN_mode is PWM, but not always + present even then. RW pwm[1-*]_auto_channels_temp diff --git a/Documentation/hwmon/w83627ehf b/Documentation/hwmon/w83627ehf index 8a15a740875..030fac6cec7 100644 --- a/Documentation/hwmon/w83627ehf +++ b/Documentation/hwmon/w83627ehf @@ -2,26 +2,29 @@ Kernel driver w83627ehf ======================= Supported chips: - * Winbond W83627EHF/EHG (ISA access ONLY) + * Winbond W83627EHF/EHG/DHG (ISA access ONLY) Prefix: 'w83627ehf' Addresses scanned: ISA address retrieved from Super I/O registers - Datasheet: http://www.winbond-usa.com/products/winbond_products/pdfs/PCIC/W83627EHF_%20W83627EHGb.pdf + Datasheet: + http://www.winbond-usa.com/products/winbond_products/pdfs/PCIC/W83627EHF_%20W83627EHGb.pdf + DHG datasheet confidential. Authors: Jean Delvare <khali@linux-fr.org> Yuan Mu (Winbond) Rudolf Marek <r.marek@assembler.cz> + David Hubbard <david.c.hubbard@gmail.com> Description ----------- -This driver implements support for the Winbond W83627EHF and W83627EHG -super I/O chips. We will refer to them collectively as Winbond chips. +This driver implements support for the Winbond W83627EHF, W83627EHG, and +W83627DHG 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, alarms with beep warnings (control -unimplemented), and some automatic fan regulation strategies (plus manual -fan control mode). +speed sensors, ten analog voltage sensors (only nine for the 627DHG), alarms +with beep warnings (control unimplemented), and some automatic fan regulation +strategies (plus manual fan control mode). Temperatures are measured in degrees Celsius and measurement resolution is 1 degC for temp1 and 0.5 degC for temp2 and temp3. An alarm is triggered when @@ -55,6 +58,9 @@ prog -> pwm4 (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" + pwm[1-4] - this file stores PWM duty cycle or DC value (fan speed) in range: 0 (stop) to 255 (full) @@ -83,3 +89,37 @@ pwm[1-4]_stop_time - how many milliseconds [ms] must elapse to switch Note: last two functions are influenced by other control bits, not yet exported by the driver, so a change might not have any effect. + +Implementation Details +---------------------- + +Future driver development should bear in mind that the following registers have +different functions on the 627EHF and the 627DHG. Some registers also have +different power-on default values, but BIOS should already be loading +appropriate defaults. Note that bank selection must be performed as is currently +done in the driver for all register addresses. + +0x49: only on DHG, selects temperature source for AUX fan, CPU fan0 +0x4a: not completely documented for the EHF and the DHG documentation assigns + different behavior to bits 7 and 6, including extending the temperature + input selection to SmartFan I, not just SmartFan III. Testing on the EHF + will reveal whether they are compatible or not. + +0x58: Chip ID: 0xa1=EHF 0xc1=DHG +0x5e: only on DHG, has bits to enable "current mode" temperature detection and + critical temperature protection +0x45b: only on EHF, bit 3, vin4 alarm (EHF supports 10 inputs, only 9 on DHG) +0x552: only on EHF, vin4 +0x558: only on EHF, vin4 high limit +0x559: only on EHF, vin4 low limit +0x6b: only on DHG, SYS fan critical temperature +0x6c: only on DHG, CPU fan0 critical temperature +0x6d: only on DHG, AUX fan critical temperature +0x6e: only on DHG, CPU fan1 critical temperature + +0x50-0x55 and 0x650-0x657 are marked "Test Register" for the EHF, but "Reserved + Register" for the DHG + +The DHG also supports PECI, where the DHG queries Intel CPU temperatures, and +the ICH8 southbridge gets that data via PECI from the DHG, so that the +southbridge drives the fans. And the DHG supports SST, a one-wire serial bus. diff --git a/MAINTAINERS b/MAINTAINERS index 270c6b006b9..6261597a1bc 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -275,6 +275,12 @@ M: khali@linux-fr.org L: lm-sensors@lm-sensors.org S: Maintained +ADM1029 HARDWARE MONITOR DRIVER +P: Corentin Labbe +M: corentin.labbe@geomatys.fr +L: lm-sensors@lm-sensors.org +S: Maintained + ADT746X FAN DRIVER P: Colin Leroy M: colin@colino.net diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig index 891ef6d0b1b..c3d4856fb61 100644 --- a/drivers/hwmon/Kconfig +++ b/drivers/hwmon/Kconfig @@ -73,6 +73,17 @@ config SENSORS_ADM1026 This driver can also be built as a module. If so, the module will be called adm1026. +config SENSORS_ADM1029 + tristate "Analog Devices ADM1029" + depends on HWMON && I2C && EXPERIMENTAL + help + If you say yes here you get support for Analog Devices ADM1029 + sensor chip. + Very rare chip, please let us know you use it. + + This driver can also be built as a module. If so, the module + will be called adm1029. + config SENSORS_ADM1031 tristate "Analog Devices ADM1031 and compatibles" depends on HWMON && I2C && EXPERIMENTAL diff --git a/drivers/hwmon/Makefile b/drivers/hwmon/Makefile index 31661124271..4165c27a2f2 100644 --- a/drivers/hwmon/Makefile +++ b/drivers/hwmon/Makefile @@ -17,6 +17,7 @@ obj-$(CONFIG_SENSORS_ABITUGURU) += abituguru.o obj-$(CONFIG_SENSORS_ADM1021) += adm1021.o obj-$(CONFIG_SENSORS_ADM1025) += adm1025.o obj-$(CONFIG_SENSORS_ADM1026) += adm1026.o +obj-$(CONFIG_SENSORS_ADM1029) += adm1029.o obj-$(CONFIG_SENSORS_ADM1031) += adm1031.o obj-$(CONFIG_SENSORS_ADM9240) += adm9240.o obj-$(CONFIG_SENSORS_AMS) += ams/ diff --git a/drivers/hwmon/abituguru.c b/drivers/hwmon/abituguru.c index b1dc63e4ac7..bede4d990ea 100644 --- a/drivers/hwmon/abituguru.c +++ b/drivers/hwmon/abituguru.c @@ -1267,30 +1267,42 @@ static int __devinit abituguru_probe(struct platform_device *pdev) printk(KERN_INFO ABIT_UGURU_NAME ": found Abit uGuru\n"); /* Register sysfs hooks */ - data->class_dev = hwmon_device_register(&pdev->dev); - if (IS_ERR(data->class_dev)) { - res = PTR_ERR(data->class_dev); - goto abituguru_probe_error; - } for (i = 0; i < sysfs_attr_i; i++) - device_create_file(&pdev->dev, &data->sysfs_attr[i].dev_attr); + if (device_create_file(&pdev->dev, + &data->sysfs_attr[i].dev_attr)) + goto abituguru_probe_error; for (i = 0; i < ARRAY_SIZE(abituguru_sysfs_attr); i++) - device_create_file(&pdev->dev, - &abituguru_sysfs_attr[i].dev_attr); + if (device_create_file(&pdev->dev, + &abituguru_sysfs_attr[i].dev_attr)) + goto abituguru_probe_error; - return 0; + data->class_dev = hwmon_device_register(&pdev->dev); + if (!IS_ERR(data->class_dev)) + return 0; /* success */ + res = PTR_ERR(data->class_dev); abituguru_probe_error: + for (i = 0; data->sysfs_attr[i].dev_attr.attr.name; i++) + device_remove_file(&pdev->dev, &data->sysfs_attr[i].dev_attr); + for (i = 0; i < ARRAY_SIZE(abituguru_sysfs_attr); i++) + device_remove_file(&pdev->dev, + &abituguru_sysfs_attr[i].dev_attr); kfree(data); return res; } static int __devexit abituguru_remove(struct platform_device *pdev) { + int i; struct abituguru_data *data = platform_get_drvdata(pdev); platform_set_drvdata(pdev, NULL); hwmon_device_unregister(data->class_dev); + for (i = 0; data->sysfs_attr[i].dev_attr.attr.name; i++) + device_remove_file(&pdev->dev, &data->sysfs_attr[i].dev_attr); + for (i = 0; i < ARRAY_SIZE(abituguru_sysfs_attr); i++) + device_remove_file(&pdev->dev, + &abituguru_sysfs_attr[i].dev_attr); kfree(data); return 0; diff --git a/drivers/hwmon/adm1026.c b/drivers/hwmon/adm1026.c index b4618b2705f..ba80cd3258c 100644 --- a/drivers/hwmon/adm1026.c +++ b/drivers/hwmon/adm1026.c @@ -261,7 +261,6 @@ struct pwm_data { struct adm1026_data { struct i2c_client client; struct class_device *class_dev; - struct mutex lock; enum chips type; struct mutex update_lock; diff --git a/drivers/hwmon/adm1029.c b/drivers/hwmon/adm1029.c new file mode 100644 index 00000000000..73ce31b3151 --- /dev/null +++ b/drivers/hwmon/adm1029.c @@ -0,0 +1,508 @@ +/* + * adm1029.c - Part of lm_sensors, Linux kernel modules for hardware monitoring + * + * Copyright (C) 2006 Corentin LABBE <corentin.labbe@geomatys.fr> + * + * Based on LM83 Driver by Jean Delvare <khali@linux-fr.org> + * + * Give only processor, motherboard temperatures and fan tachs + * Very rare chip please let me know if you use it + * + * http://www.analog.com/UploadedFiles/Data_Sheets/ADM1029.pdf + * + * + * 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 version 2 of the License + * + * 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-sysfs.h> +#include <linux/hwmon.h> +#include <linux/err.h> +#include <linux/mutex.h> + +/* + * Addresses to scan + */ + +static unsigned short normal_i2c[] = { + 0x28, 0x29, 0x2a, + 0x2b, 0x2c, 0x2d, + 0x2e, 0x2f, I2C_CLIENT_END +}; + +/* + * Insmod parameters + */ + +I2C_CLIENT_INSMOD_1(adm1029); + +/* + * The ADM1029 registers + * Manufacturer ID is 0x41 for Analog Devices + */ + +#define ADM1029_REG_MAN_ID 0x0D +#define ADM1029_REG_CHIP_ID 0x0E +#define ADM1029_REG_CONFIG 0x01 +#define ADM1029_REG_NB_FAN_SUPPORT 0x02 + +#define ADM1029_REG_TEMP_DEVICES_INSTALLED 0x06 + +#define ADM1029_REG_LOCAL_TEMP 0xA0 +#define ADM1029_REG_REMOTE1_TEMP 0xA1 +#define ADM1029_REG_REMOTE2_TEMP 0xA2 + +#define ADM1029_REG_LOCAL_TEMP_HIGH 0x90 +#define ADM1029_REG_REMOTE1_TEMP_HIGH 0x91 +#define ADM1029_REG_REMOTE2_TEMP_HIGH 0x92 + +#define ADM1029_REG_LOCAL_TEMP_LOW 0x98 +#define ADM1029_REG_REMOTE1_TEMP_LOW 0x99 +#define ADM1029_REG_REMOTE2_TEMP_LOW 0x9A + +#define ADM1029_REG_FAN1 0x70 +#define ADM1029_REG_FAN2 0x71 + +#define ADM1029_REG_FAN1_MIN 0x78 +#define ADM1029_REG_FAN2_MIN 0x79 + +#define ADM1029_REG_FAN1_CONFIG 0x68 +#define ADM1029_REG_FAN2_CONFIG 0x69 + +#define TEMP_FROM_REG(val) ((val) * 1000) + +#define DIV_FROM_REG(val) ( 1 << (((val) >> 6) - 1)) + +/* Registers to be checked by adm1029_update_device() */ +static const u8 ADM1029_REG_TEMP[] = { + ADM1029_REG_LOCAL_TEMP, + ADM1029_REG_REMOTE1_TEMP, + ADM1029_REG_REMOTE2_TEMP, + ADM1029_REG_LOCAL_TEMP_HIGH, + ADM1029_REG_REMOTE1_TEMP_HIGH, + ADM1029_REG_REMOTE2_TEMP_HIGH, + ADM1029_REG_LOCAL_TEMP_LOW, + ADM1029_REG_REMOTE1_TEMP_LOW, + ADM1029_REG_REMOTE2_TEMP_LOW, +}; + +static const u8 ADM1029_REG_FAN[] = { + ADM1029_REG_FAN1, + ADM1029_REG_FAN2, + ADM1029_REG_FAN1_MIN, + ADM1029_REG_FAN2_MIN, +}; + +static const u8 ADM1029_REG_FAN_DIV[] = { + ADM1029_REG_FAN1_CONFIG, + ADM1029_REG_FAN2_CONFIG, +}; + +/* + * Functions declaration + */ + +static int adm1029_attach_adapter(struct i2c_adapter *adapter); +static int adm1029_detect(struct i2c_adapter *adapter, int address, int kind); +static int adm1029_detach_client(struct i2c_client *client); +static struct adm1029_data *adm1029_update_device(struct device *dev); +static int adm1029_init_client(struct i2c_client *client); + +/* + * Driver data (common to all clients) + */ + +static struct i2c_driver adm1029_driver = { + .driver = { + .name = "adm1029", + }, + .attach_adapter = adm1029_attach_adapter, + .detach_client = adm1029_detach_client, +}; + +/* + * Client data (each client gets its own) + */ + +struct adm1029_data { + struct i2c_client client; + struct class_device *class_dev; + struct mutex update_lock; + char valid; /* zero until following fields are valid */ + unsigned long last_updated; /* in jiffies */ + + /* registers values, signed for temperature, unsigned for other stuff */ + s8 temp[ARRAY_SIZE(ADM1029_REG_TEMP)]; + u8 fan[ARRAY_SIZE(ADM1029_REG_FAN)]; + u8 fan_div[ARRAY_SIZE(ADM1029_REG_FAN_DIV)]; +}; + +/* + * Sysfs stuff + */ + +static ssize_t +show_temp(struct device *dev, struct device_attribute *devattr, char *buf) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + struct adm1029_data *data = adm1029_update_device(dev); + return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[attr->index])); +} + +static ssize_t +show_fan(struct device *dev, struct device_attribute *devattr, char *buf) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + struct adm1029_data *data = adm1029_update_device(dev); + u16 val; + if (data->fan[attr->index] == 0 || data->fan_div[attr->index] == 0 + || data->fan[attr->index] == 255) { + return sprintf(buf, "0\n"); + } + + val = 1880 * 120 / DIV_FROM_REG(data->fan_div[attr->index]) + / data->fan[attr->index]; + return sprintf(buf, "%d\n", val); +} + +static ssize_t +show_fan_div(struct device *dev, struct device_attribute *devattr, char *buf) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + struct adm1029_data *data = adm1029_update_device(dev); + if (data->fan_div[attr->index] == 0) + return sprintf(buf, "0\n"); + return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[attr->index])); +} + +static ssize_t set_fan_div(struct device *dev, + struct device_attribute *devattr, const char *buf, size_t count) +{ + struct i2c_client *client = to_i2c_client(dev); + struct adm1029_data *data = i2c_get_clientdata(client); + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + long val = simple_strtol(buf, NULL, 10); + u8 reg; + + mutex_lock(&data->update_lock); + + /*Read actual config */ + reg = i2c_smbus_read_byte_data(client, + ADM1029_REG_FAN_DIV[attr->index]); + + switch (val) { + case 1: + val = 1; + break; + case 2: + val = 2; + break; + case 4: + val = 3; + break; + default: + mutex_unlock(&data->update_lock); + dev_err(&client->dev, "fan_div value %ld not " + "supported. Choose one of 1, 2 or 4!\n", val); + return -EINVAL; + } + /* Update the value */ + reg = (reg & 0x3F) | (val << 6); + + /* Write value */ + i2c_smbus_write_byte_data(client, + ADM1029_REG_FAN_DIV[attr->index], reg); + mutex_unlock(&data->update_lock); + + return count; +} + +/* +Access rights on sysfs, S_IRUGO stand for Is Readable by User, Group and Others + S_IWUSR stand for Is Writable by User +*/ +static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0); +static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 1); +static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, show_temp, NULL, 2); + +static SENSOR_DEVICE_ATTR(temp1_max, S_IRUGO, show_temp, NULL, 3); +static SENSOR_DEVICE_ATTR(temp2_max, S_IRUGO, show_temp, NULL, 4); +static SENSOR_DEVICE_ATTR(temp3_max, S_IRUGO, show_temp, NULL, 5); + +static SENSOR_DEVICE_ATTR(temp1_min, S_IRUGO, show_temp, NULL, 6); +static SENSOR_DEVICE_ATTR(temp2_min, S_IRUGO, show_temp, NULL, 7); +static SENSOR_DEVICE_ATTR(temp3_min, S_IRUGO, show_temp, NULL, 8); + +static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0); +static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1); + +static SENSOR_DEVICE_ATTR(fan1_min, S_IRUGO, show_fan, NULL, 2); +static SENSOR_DEVICE_ATTR(fan2_min, S_IRUGO, show_fan, NULL, 3); + +static SENSOR_DEVICE_ATTR(fan1_div, S_IRUGO | S_IWUSR, + show_fan_div, set_fan_div, 0); +static SENSOR_DEVICE_ATTR(fan2_div, S_IRUGO | S_IWUSR, + show_fan_div, set_fan_div, 1); + +static struct attribute *adm1029_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_temp2_input.dev_attr.attr, + &sensor_dev_attr_temp2_min.dev_attr.attr, + &sensor_dev_attr_temp2_max.dev_attr.attr, + &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_fan1_input.dev_attr.attr, + &sensor_dev_attr_fan2_input.dev_attr.attr, + &sensor_dev_attr_fan1_min.dev_attr.attr, + &sensor_dev_attr_fan2_min.dev_attr.attr, + &sensor_dev_attr_fan1_div.dev_attr.attr, + &sensor_dev_attr_fan2_div.dev_attr.attr, + NULL +}; + +static const struct attribute_group adm1029_group = { + .attrs = adm1029_attributes, +}; + +/* + * Real code + */ + +static int adm1029_attach_adapter(struct i2c_adapter *adapter) +{ + if (!(adapter->class & I2C_CLASS_HWMON)) + return 0; + return i2c_probe(adapter, &addr_data, adm1029_detect); +} + +/* + * The following function does more than just detection. If detection + * succeeds, it also registers the new chip. + */ + +static int adm1029_detect(struct i2c_adapter *adapter, int address, int kind) +{ + struct i2c_client *client; + struct adm1029_data *data; + int err = 0; + const char *name = ""; + if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) + goto exit; + + if (!(data = kzalloc(sizeof(struct adm1029_data), GFP_KERNEL))) { + err = -ENOMEM; + goto exit; + } + + client = &data->client; + i2c_set_clientdata(client, data); + client->addr = address; + client->adapter = adapter; + client->driver = &adm1029_driver; + + /* Now we do the detection and identification. A negative kind + * means that the driver was loaded with no force parameter + * (default), so we must both detect and identify the chip + * (actually there is only one possible kind of chip for now, adm1029). + * A zero kind means that the driver was loaded with the force + * parameter, the detection step shall be skipped. A positive kind + * means that the driver was loaded with the force parameter and a + * given kind of chip is requested, so both the detection and the + * identification steps are skipped. */ + + /* Default to an adm1029 if forced */ + if (kind == 0) + kind = adm1029; + + /* ADM1029 doesn't have CHIP ID, check just MAN ID + * For better detection we check also ADM1029_TEMP_DEVICES_INSTALLED, + * ADM1029_REG_NB_FAN_SUPPORT and compare it with possible values + * documented + */ + + if (kind <= 0) { /* identification */ + u8 man_id, chip_id, temp_devices_installed, nb_fan_support; + + man_id = i2c_smbus_read_byte_data(client, ADM1029_REG_MAN_ID); + chip_id = i2c_smbus_read_byte_data(client, ADM1029_REG_CHIP_ID); + temp_devices_installed = i2c_smbus_read_byte_data(client, + ADM1029_REG_TEMP_DEVICES_INSTALLED); + nb_fan_support = i2c_smbus_read_byte_data(client, + ADM1029_REG_NB_FAN_SUPPORT); + /* 0x41 is Analog Devices */ + if (man_id == 0x41 && (temp_devices_installed & 0xf9) == 0x01 + && nb_fan_support == 0x03) { + if ((chip_id & 0xF0) == 0x00) { + kind = adm1029; + } else { + /* There are no "official" CHIP ID, so actually + * we use Major/Minor revision for that */ + printk(KERN_INFO + "adm1029: Unknown major revision %x, " + "please let us know\n", chip_id); + } + } + + if (kind <= 0) { /* identification failed */ + pr_debug("adm1029: Unsupported chip (man_id=0x%02X, " + "chip_id=0x%02X)\n", man_id, chip_id); + goto exit_free; + } + } + + if (kind == adm1029) { + name = "adm1029"; + } + + /* We can fill in the remaining client fields */ + strlcpy(client->name, name, I2C_NAME_SIZE); + mutex_init(&data->update_lock); + + /* Tell the I2C layer a new client has arrived */ + if ((err = i2c_attach_client(client))) + goto exit_free; + + /* + * Initialize the ADM1029 chip + * Check config register + */ + if (adm1029_init_client(client) == 0) + goto exit_detach; + + /* Register sysfs hooks */ + if ((err = sysfs_create_group(&client->dev.kobj, &adm1029_group))) + goto exit_detach; + + data->class_dev = hwmon_device_register(&client->dev); + if (IS_ERR(data->class_dev)) { + err = PTR_ERR(data->class_dev); + goto exit_remove_files; + } + + return 0; + + exit_remove_files: + sysfs_remove_group(&client->dev.kobj, &adm1029_group); + exit_detach: + i2c_detach_client(client); + exit_free: + kfree(data); + exit: + return err; +} + +static int adm1029_init_client(struct i2c_client *client) +{ + u8 config; + config = i2c_smbus_read_byte_data(client, ADM1029_REG_CONFIG); + if ((config & 0x10) == 0) { + i2c_smbus_write_byte_data(client, ADM1029_REG_CONFIG, + config | 0x10); + } + /* recheck config */ + config = i2c_smbus_read_byte_data(client, ADM1029_REG_CONFIG); + if ((config & 0x10) == 0) { + dev_err(&client->dev, "Initialization failed!\n"); + return 0; + } + return 1; +} + +static int adm1029_detach_client(struct i2c_client *client) +{ + struct adm1029_data *data = i2c_get_clientdata(client); + int err; + + hwmon_device_unregister(data->class_dev); + sysfs_remove_group(&client->dev.kobj, &adm1029_group); + + if ((err = i2c_detach_client(client))) + return err; + + kfree(data); + return 0; +} + +/* +function that update the status of the chips (temperature for exemple) +*/ +static struct adm1029_data *adm1029_update_device(struct device *dev) +{ + struct i2c_client *client = to_i2c_client(dev); + struct adm1029_data *data = i2c_get_clientdata(client); + + mutex_lock(&data->update_lock); + /* + * Use the "cache" Luke, don't recheck values + * if there are already checked not a long time later + */ + if (time_after(jiffies, data->last_updated + HZ * 2) + || !data->valid) { + int nr; + + dev_dbg(&client->dev, "Updating adm1029 data\n"); + + for (nr = 0; nr < ARRAY_SIZE(ADM1029_REG_TEMP); nr++) { + data->temp[nr] = + i2c_smbus_read_byte_data(client, + ADM1029_REG_TEMP[nr]); + } + for (nr = 0; nr < ARRAY_SIZE(ADM1029_REG_FAN); nr++) { + data->fan[nr] = + i2c_smbus_read_byte_data(client, + ADM1029_REG_FAN[nr]); + } + for (nr = 0; nr < ARRAY_SIZE(ADM1029_REG_FAN_DIV); nr++) { + data->fan_div[nr] = + i2c_smbus_read_byte_data(client, + ADM1029_REG_FAN_DIV[nr]); + } + + data->last_updated = jiffies; + data->valid = 1; + } + + mutex_unlock(&data->update_lock); + + return data; +} + +/* + Common module stuff +*/ +static int __init sensors_adm1029_init(void) +{ + + return i2c_add_driver(&adm1029_driver); +} + +static void __exit sensors_adm1029_exit(void) +{ + + i2c_del_driver(&adm1029_driver); +} + +MODULE_AUTHOR("Corentin LABBE <corentin.labbe@geomatys.fr>"); +MODULE_DESCRIPTION("adm1029 driver"); +MODULE_LICENSE("GPL v2"); + +module_init(sensors_adm1029_init); +module_exit(sensors_adm1029_exit); diff --git a/drivers/hwmon/f71805f.c b/drivers/hwmon/f71805f.c index a272cae8f60..7c297348712 100644 --- a/drivers/hwmon/f71805f.c +++ b/drivers/hwmon/f71805f.c @@ -146,7 +146,6 @@ superio_exit(int base) struct f71805f_data { unsigned short addr; const char *name; - struct mutex lock; struct class_device *class_dev; struct mutex update_lock; @@ -271,50 +270,42 @@ static inline u8 temp_to_reg(long val) * Device I/O access */ +/* Must be called with data->update_lock held, except during initialization */ static u8 f71805f_read8(struct f71805f_data *data, u8 reg) { - u8 val; - - mutex_lock(&data->lock); outb(reg, data->addr + ADDR_REG_OFFSET); - val = inb(data->addr + DATA_REG_OFFSET); - mutex_unlock(&data->lock); - - return val; + return inb(data->addr + DATA_REG_OFFSET); } +/* Must be called with data->update_lock held, except during initialization */ static void f71805f_write8(struct f71805f_data *data, u8 reg, u8 val) { - mutex_lock(&data->lock); outb(reg, data->addr + ADDR_REG_OFFSET); outb(val, data->addr + DATA_REG_OFFSET); - mutex_unlock(&data->lock); } /* It is important to read the MSB first, because doing so latches the - value of the LSB, so we are sure both bytes belong to the same value. */ + value of the LSB, so we are sure both bytes belong to the same value. + Must be called with data->update_lock held, except during initialization */ static u16 f71805f_read16(struct f71805f_data *data, u8 reg) { u16 val; - mutex_lock(&data->lock); outb(reg, data->addr + ADDR_REG_OFFSET); val = inb(data->addr + DATA_REG_OFFSET) << 8; outb(++reg, data->addr + ADDR_REG_OFFSET); val |= inb(data->addr + DATA_REG_OFFSET); - mutex_unlock(&data->lock); return val; } +/* Must be called with data->update_lock held, except during initialization */ static void f71805f_write16(struct f71805f_data *data, u8 reg, u16 val) { - mutex_lock(&data->lock); outb(reg, data->addr + ADDR_REG_OFFSET); outb(val >> 8, data->addr + DATA_REG_OFFSET); outb(++reg, data->addr + ADDR_REG_OFFSET); outb(val & 0xff, data->addr + DATA_REG_OFFSET); - mutex_unlock(&data->lock); } static struct f71805f_data *f71805f_update_device(struct device *dev) @@ -1150,7 +1141,6 @@ static int __devinit f71805f_probe(struct platform_device *pdev) res = platform_get_resource(pdev, IORESOURCE_IO, 0); data->addr = res->start; - mutex_init(&data->lock); data->name = names[sio_data->kind]; mutex_init(&data->update_lock); @@ -1300,14 +1290,11 @@ static int __init f71805f_device_add(unsigned short address, if (err) { printk(KERN_ERR DRVNAME ": Device addition failed (%d)\n", err); - goto exit_kfree_data; + goto exit_device_put; } return 0; -exit_kfree_data: - kfree(pdev->dev.platform_data); - pdev->dev.platform_data = NULL; exit_device_put: platform_device_put(pdev); exit: @@ -1400,10 +1387,7 @@ exit: static void __exit f71805f_exit(void) { - kfree(pdev->dev.platform_data); - pdev->dev.platform_data = NULL; platform_device_unregister(pdev); - platform_driver_unregister(&f71805f_driver); } diff --git a/drivers/hwmon/hwmon.c b/drivers/hwmon/hwmon.c index 106fa01cdb6..affcc00764d 100644 --- a/drivers/hwmon/hwmon.c +++ b/drivers/hwmon/hwmon.c @@ -101,7 +101,7 @@ static void __exit hwmon_exit(void) class_destroy(hwmon_class); } -module_init(hwmon_init); +subsys_initcall(hwmon_init); module_exit(hwmon_exit); EXPORT_SYMBOL_GPL(hwmon_device_register); diff --git a/drivers/hwmon/it87.c b/drivers/hwmon/it87.c index 1ed8b7e2c35..62afc63708a 100644 --- a/drivers/hwmon/it87.c +++ b/drivers/hwmon/it87.c @@ -202,15 +202,23 @@ static int DIV_TO_REG(int val) } #define DIV_FROM_REG(val) (1 << (val)) +static const unsigned int pwm_freq[8] = { + 48000000 / 128, + 24000000 / 128, + 12000000 / 128, + 8000000 / 128, + 6000000 / 128, + 3000000 / 128, + 1500000 / 128, + 750000 / 128, +}; + -/* For each registered IT87, we need to keep some data in memory. That - data is pointed to by it87_list[NR]->data. The structure itself is - dynamically allocated, at the same time when a new it87 client is - allocated. */ +/* For each registered chip, we need to keep some data in memory. + The structure is dynamically allocated. */ struct it87_data { struct i2c_client client; struct class_device *class_dev; - struct mutex lock; enum chips type; struct mutex update_lock; @@ -232,6 +240,7 @@ struct it87_data { u8 vrm; u32 alarms; /* Register encoding, combined */ u8 fan_main_ctrl; /* Register value */ + u8 fan_ctl; /* Register value */ u8 manual_pwm_ctl[3]; /* manual PWM value set by user */ }; @@ -519,6 +528, |