diff options
Diffstat (limited to 'drivers/hwmon')
| -rw-r--r-- | drivers/hwmon/Kconfig | 95 | ||||
| -rw-r--r-- | drivers/hwmon/Makefile | 10 | ||||
| -rw-r--r-- | drivers/hwmon/abituguru.c | 4 | ||||
| -rw-r--r-- | drivers/hwmon/abituguru3.c | 4 | ||||
| -rw-r--r-- | drivers/hwmon/ads1015.c | 337 | ||||
| -rw-r--r-- | drivers/hwmon/hp_accel.c | 405 | ||||
| -rw-r--r-- | drivers/hwmon/jz4740-hwmon.c | 4 | ||||
| -rw-r--r-- | drivers/hwmon/lis3lv02d.c | 1000 | ||||
| -rw-r--r-- | drivers/hwmon/lis3lv02d.h | 291 | ||||
| -rw-r--r-- | drivers/hwmon/lis3lv02d_i2c.c | 279 | ||||
| -rw-r--r-- | drivers/hwmon/lis3lv02d_spi.c | 145 | ||||
| -rw-r--r-- | drivers/hwmon/lm75.c | 66 | ||||
| -rw-r--r-- | drivers/hwmon/sch5627.c | 858 | ||||
| -rw-r--r-- | drivers/hwmon/sht15.c | 6 | ||||
| -rw-r--r-- | drivers/hwmon/twl4030-madc-hwmon.c | 157 |
15 files changed, 1440 insertions, 2221 deletions
diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig index 1bfb4439e4e1..81131eda5544 100644 --- a/drivers/hwmon/Kconfig +++ b/drivers/hwmon/Kconfig @@ -521,7 +521,7 @@ config SENSORS_LM75 - Dallas Semiconductor DS75 and DS1775 - Maxim MAX6625 and MAX6626 - Microchip MCP980x - - National Semiconductor LM75 + - National Semiconductor LM75, LM75A - NXP's LM75A - ST Microelectronics STDS75 - TelCom (now Microchip) TCN75 @@ -959,6 +959,25 @@ config SENSORS_SMSC47B397 This driver can also be built as a module. If so, the module will be called smsc47b397. +config SENSORS_SCH5627 + tristate "SMSC SCH5627" + help + If you say yes here you get support for the hardware monitoring + features of the SMSC SCH5627 Super-I/O chip. + + This driver can also be built as a module. If so, the module + will be called sch5627. + +config SENSORS_ADS1015 + tristate "Texas Instruments ADS1015" + depends on I2C + help + If you say yes here you get support for Texas Instruments ADS1015 + 12-bit 4-input ADC device. + + This driver can also be built as a module. If so, the module + will be called ads1015. + config SENSORS_ADS7828 tristate "Texas Instruments ADS7828" depends on I2C @@ -1028,6 +1047,16 @@ config SENSORS_TMP421 This driver can also be built as a module. If so, the module will be called tmp421. +config SENSORS_TWL4030_MADC + tristate "Texas Instruments TWL4030 MADC Hwmon" + depends on TWL4030_MADC + help + If you say yes here you get hwmon support for triton + TWL4030-MADC. + + This driver can also be built as a module. If so it will be called + twl4030-madc-hwmon. + config SENSORS_VIA_CPUTEMP tristate "VIA CPU temperature sensor" depends on X86 @@ -1215,40 +1244,6 @@ config SENSORS_ULTRA45 This driver provides support for the Ultra45 workstation environmental sensors. -config SENSORS_LIS3_SPI - tristate "STMicroeletronics LIS3LV02Dx three-axis digital accelerometer (SPI)" - depends on !ACPI && SPI_MASTER && INPUT - select INPUT_POLLDEV - default n - help - This driver provides support for the LIS3LV02Dx accelerometer connected - via SPI. The accelerometer data is readable via - /sys/devices/platform/lis3lv02d. - - This driver also provides an absolute input class device, allowing - the laptop to act as a pinball machine-esque joystick. - - This driver can also be built as modules. If so, the core module - will be called lis3lv02d and a specific module for the SPI transport - is called lis3lv02d_spi. - -config SENSORS_LIS3_I2C - tristate "STMicroeletronics LIS3LV02Dx three-axis digital accelerometer (I2C)" - depends on I2C && INPUT - select INPUT_POLLDEV - default n - help - This driver provides support for the LIS3LV02Dx accelerometer connected - via I2C. The accelerometer data is readable via - /sys/devices/platform/lis3lv02d. - - This driver also provides an absolute input class device, allowing - the device to act as a pinball machine-esque joystick. - - This driver can also be built as modules. If so, the core module - will be called lis3lv02d and a specific module for the I2C transport - is called lis3lv02d_i2c. - config SENSORS_APPLESMC tristate "Apple SMC (Motion sensor, light sensor, keyboard backlight)" depends on INPUT && X86 @@ -1296,36 +1291,6 @@ config SENSORS_ATK0110 This driver can also be built as a module. If so, the module will be called asus_atk0110. -config SENSORS_LIS3LV02D - tristate "STMicroeletronics LIS3* three-axis digital accelerometer" - depends on INPUT - select INPUT_POLLDEV - select NEW_LEDS - select LEDS_CLASS - default n - help - This driver provides support for the LIS3* accelerometers, such as the - LIS3LV02DL or the LIS331DL. In particular, it can be found in a number - of HP laptops, which have the "Mobile Data Protection System 3D" or - "3D DriveGuard" feature. On such systems the driver should load - automatically (via ACPI alias). The accelerometer might also be found - in other systems, connected via SPI or I2C. The accelerometer data is - readable via /sys/devices/platform/lis3lv02d. - - This driver also provides an absolute input class device, allowing - a laptop to act as a pinball machine-esque joystick. It provides also - a misc device which can be used to detect free-fall. On HP laptops, - if the led infrastructure is activated, support for a led indicating - disk protection will be provided as hp::hddprotect. For more - information on the feature, refer to Documentation/hwmon/lis3lv02d. - - This driver can also be built as modules. If so, the core module - will be called lis3lv02d and a specific module for HP laptops will be - called hp_accel. - - Say Y here if you have an applicable laptop and want to experience - the awesome power of lis3lv02d. - endif # ACPI endif # HWMON diff --git a/drivers/hwmon/Makefile b/drivers/hwmon/Makefile index bd0410e4b44f..967d0ea9447f 100644 --- a/drivers/hwmon/Makefile +++ b/drivers/hwmon/Makefile @@ -29,6 +29,7 @@ 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-$(CONFIG_SENSORS_ADS1015) += ads1015.o obj-$(CONFIG_SENSORS_ADS7828) += ads7828.o obj-$(CONFIG_SENSORS_ADS7871) += ads7871.o obj-$(CONFIG_SENSORS_ADT7411) += adt7411.o @@ -63,9 +64,6 @@ obj-$(CONFIG_SENSORS_JZ4740) += jz4740-hwmon.o obj-$(CONFIG_SENSORS_K8TEMP) += k8temp.o obj-$(CONFIG_SENSORS_K10TEMP) += k10temp.o obj-$(CONFIG_SENSORS_LINEAGE) += lineage-pem.o -obj-$(CONFIG_SENSORS_LIS3LV02D) += lis3lv02d.o hp_accel.o -obj-$(CONFIG_SENSORS_LIS3_SPI) += lis3lv02d.o lis3lv02d_spi.o -obj-$(CONFIG_SENSORS_LIS3_I2C) += lis3lv02d.o lis3lv02d_i2c.o obj-$(CONFIG_SENSORS_LM63) += lm63.o obj-$(CONFIG_SENSORS_LM70) += lm70.o obj-$(CONFIG_SENSORS_LM73) += lm73.o @@ -93,6 +91,7 @@ obj-$(CONFIG_SENSORS_PC87360) += pc87360.o obj-$(CONFIG_SENSORS_PC87427) += pc87427.o obj-$(CONFIG_SENSORS_PCF8591) += pcf8591.o obj-$(CONFIG_SENSORS_S3C) += s3c-hwmon.o +obj-$(CONFIG_SENSORS_SCH5627) += sch5627.o obj-$(CONFIG_SENSORS_SHT15) += sht15.o obj-$(CONFIG_SENSORS_SHT21) += sht21.o obj-$(CONFIG_SENSORS_SIS5595) += sis5595.o @@ -105,6 +104,7 @@ obj-$(CONFIG_SENSORS_THMC50) += thmc50.o obj-$(CONFIG_SENSORS_TMP102) += tmp102.o obj-$(CONFIG_SENSORS_TMP401) += tmp401.o obj-$(CONFIG_SENSORS_TMP421) += tmp421.o +obj-$(CONFIG_SENSORS_TWL4030_MADC)+= twl4030-madc-hwmon.o obj-$(CONFIG_SENSORS_VIA_CPUTEMP)+= via-cputemp.o obj-$(CONFIG_SENSORS_VIA686A) += via686a.o obj-$(CONFIG_SENSORS_VT1211) += vt1211.o @@ -122,7 +122,5 @@ obj-$(CONFIG_SENSORS_MAX16064) += max16064.o obj-$(CONFIG_SENSORS_MAX34440) += max34440.o obj-$(CONFIG_SENSORS_MAX8688) += max8688.o -ifeq ($(CONFIG_HWMON_DEBUG_CHIP),y) -EXTRA_CFLAGS += -DDEBUG -endif +ccflags-$(CONFIG_HWMON_DEBUG_CHIP) := -DDEBUG diff --git a/drivers/hwmon/abituguru.c b/drivers/hwmon/abituguru.c index 8f07a9dda152..0e05aa179eaa 100644 --- a/drivers/hwmon/abituguru.c +++ b/drivers/hwmon/abituguru.c @@ -1,5 +1,5 @@ /* - abituguru.c Copyright (c) 2005-2006 Hans de Goede <j.w.r.degoede@hhs.nl> + abituguru.c Copyright (c) 2005-2006 Hans de Goede <hdegoede@redhat.com> 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 @@ -1505,7 +1505,7 @@ static void __exit abituguru_exit(void) platform_driver_unregister(&abituguru_driver); } -MODULE_AUTHOR("Hans de Goede <j.w.r.degoede@hhs.nl>"); +MODULE_AUTHOR("Hans de Goede <hdegoede@redhat.com>"); MODULE_DESCRIPTION("Abit uGuru Sensor device"); MODULE_LICENSE("GPL"); diff --git a/drivers/hwmon/abituguru3.c b/drivers/hwmon/abituguru3.c index 48d21e22e930..034cebfcd273 100644 --- a/drivers/hwmon/abituguru3.c +++ b/drivers/hwmon/abituguru3.c @@ -1,7 +1,7 @@ /* abituguru3.c - Copyright (c) 2006-2008 Hans de Goede <j.w.r.degoede@hhs.nl> + Copyright (c) 2006-2008 Hans de Goede <hdegoede@redhat.com> Copyright (c) 2008 Alistair John Strachan <alistair@devzero.co.uk> This program is free software; you can redistribute it and/or modify @@ -1266,7 +1266,7 @@ static void __exit abituguru3_exit(void) platform_driver_unregister(&abituguru3_driver); } -MODULE_AUTHOR("Hans de Goede <j.w.r.degoede@hhs.nl>"); +MODULE_AUTHOR("Hans de Goede <hdegoede@redhat.com>"); MODULE_DESCRIPTION("Abit uGuru3 Sensor device"); MODULE_LICENSE("GPL"); diff --git a/drivers/hwmon/ads1015.c b/drivers/hwmon/ads1015.c new file mode 100644 index 000000000000..e9beeda4cbe5 --- /dev/null +++ b/drivers/hwmon/ads1015.c @@ -0,0 +1,337 @@ +/* + * ads1015.c - lm_sensors driver for ads1015 12-bit 4-input ADC + * (C) Copyright 2010 + * Dirk Eibach, Guntermann & Drunck GmbH <eibach@gdsys.de> + * + * Based on the ads7828 driver by Steve Hardy. + * + * Datasheet available at: http://focus.ti.com/lit/ds/symlink/ads1015.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; 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/delay.h> +#include <linux/i2c.h> +#include <linux/hwmon.h> +#include <linux/hwmon-sysfs.h> +#include <linux/err.h> +#include <linux/mutex.h> +#include <linux/of.h> + +#include <linux/i2c/ads1015.h> + +/* ADS1015 registers */ +enum { + ADS1015_CONVERSION = 0, + ADS1015_CONFIG = 1, +}; + +/* PGA fullscale voltages in mV */ +static const unsigned int fullscale_table[8] = { + 6144, 4096, 2048, 1024, 512, 256, 256, 256 }; + +/* Data rates in samples per second */ +static const unsigned int data_rate_table[8] = { + 128, 250, 490, 920, 1600, 2400, 3300, 3300 }; + +#define ADS1015_DEFAULT_CHANNELS 0xff +#define ADS1015_DEFAULT_PGA 2 +#define ADS1015_DEFAULT_DATA_RATE 4 + +struct ads1015_data { + struct device *hwmon_dev; + struct mutex update_lock; /* mutex protect updates */ + struct ads1015_channel_data channel_data[ADS1015_CHANNELS]; +}; + +static s32 ads1015_read_reg(struct i2c_client *client, unsigned int reg) +{ + s32 data = i2c_smbus_read_word_data(client, reg); + + return (data < 0) ? data : swab16(data); +} + +static s32 ads1015_write_reg(struct i2c_client *client, unsigned int reg, + u16 val) +{ + return i2c_smbus_write_word_data(client, reg, swab16(val)); +} + +static int ads1015_read_value(struct i2c_client *client, unsigned int channel, + int *value) +{ + u16 config; + s16 conversion; + struct ads1015_data *data = i2c_get_clientdata(client); + unsigned int pga = data->channel_data[channel].pga; + int fullscale; + unsigned int data_rate = data->channel_data[channel].data_rate; + unsigned int conversion_time_ms; + int res; + + mutex_lock(&data->update_lock); + + /* get channel parameters */ + res = ads1015_read_reg(client, ADS1015_CONFIG); + if (res < 0) + goto err_unlock; + config = res; + fullscale = fullscale_table[pga]; + conversion_time_ms = DIV_ROUND_UP(1000, data_rate_table[data_rate]); + + /* setup and start single conversion */ + config &= 0x001f; + config |= (1 << 15) | (1 << 8); + config |= (channel & 0x0007) << 12; + config |= (pga & 0x0007) << 9; + config |= (data_rate & 0x0007) << 5; + + res = ads1015_write_reg(client, ADS1015_CONFIG, config); + if (res < 0) + goto err_unlock; + + /* wait until conversion finished */ + msleep(conversion_time_ms); + res = ads1015_read_reg(client, ADS1015_CONFIG); + if (res < 0) + goto err_unlock; + config = res; + if (!(config & (1 << 15))) { + /* conversion not finished in time */ + res = -EIO; + goto err_unlock; + } + + res = ads1015_read_reg(client, ADS1015_CONVERSION); + if (res < 0) + goto err_unlock; + conversion = res; + + mutex_unlock(&data->update_lock); + + *value = DIV_ROUND_CLOSEST(conversion * fullscale, 0x7ff0); + + return 0; + +err_unlock: + mutex_unlock(&data->update_lock); + return res; +} + +/* sysfs callback function */ +static ssize_t show_in(struct device *dev, struct device_attribute *da, + char *buf) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(da); + struct i2c_client *client = to_i2c_client(dev); + int in; + int res; + + res = ads1015_read_value(client, attr->index, &in); + + return (res < 0) ? res : sprintf(buf, "%d\n", in); +} + +static const struct sensor_device_attribute ads1015_in[] = { + SENSOR_ATTR(in0_input, S_IRUGO, show_in, NULL, 0), + SENSOR_ATTR(in1_input, S_IRUGO, show_in, NULL, 1), + SENSOR_ATTR(in2_input, S_IRUGO, show_in, NULL, 2), + SENSOR_ATTR(in3_input, S_IRUGO, show_in, NULL, 3), + SENSOR_ATTR(in4_input, S_IRUGO, show_in, NULL, 4), + SENSOR_ATTR(in5_input, S_IRUGO, show_in, NULL, 5), + SENSOR_ATTR(in6_input, S_IRUGO, show_in, NULL, 6), + SENSOR_ATTR(in7_input, S_IRUGO, show_in, NULL, 7), +}; + +/* + * Driver interface + */ + +static int ads1015_remove(struct i2c_client *client) +{ + struct ads1015_data *data = i2c_get_clientdata(client); + int k; + + hwmon_device_unregister(data->hwmon_dev); + for (k = 0; k < ADS1015_CHANNELS; ++k) + device_remove_file(&client->dev, &ads1015_in[k].dev_attr); + kfree(data); + return 0; +} + +#ifdef CONFIG_OF +static int ads1015_get_channels_config_of(struct i2c_client *client) +{ + struct ads1015_data *data = i2c_get_clientdata(client); + struct device_node *node; + + if (!client->dev.of_node + || !of_get_next_child(client->dev.of_node, NULL)) + return -EINVAL; + + for_each_child_of_node(client->dev.of_node, node) { + const __be32 *property; + int len; + unsigned int channel; + unsigned int pga = ADS1015_DEFAULT_PGA; + unsigned int data_rate = ADS1015_DEFAULT_DATA_RATE; + + property = of_get_property(node, "reg", &len); + if (!property || len != sizeof(int)) { + dev_err(&client->dev, "invalid reg on %s\n", + node->full_name); + continue; + } + + channel = be32_to_cpup(property); + if (channel > ADS1015_CHANNELS) { + dev_err(&client->dev, + "invalid channel index %d on %s\n", + channel, node->full_name); + continue; + } + + property = of_get_property(node, "ti,gain", &len); + if (property && len == sizeof(int)) { + pga = be32_to_cpup(property); + if (pga > 6) { + dev_err(&client->dev, + "invalid gain on %s\n", + node->full_name); + } + } + + property = of_get_property(node, "ti,datarate", &len); + if (property && len == sizeof(int)) { + data_rate = be32_to_cpup(property); + if (data_rate > 7) { + dev_err(&client->dev, + "invalid data_rate on %s\n", + node->full_name); + } + } + + data->channel_data[channel].enabled = true; + data->channel_data[channel].pga = pga; + data->channel_data[channel].data_rate = data_rate; + } + + return 0; +} +#endif + +static void ads1015_get_channels_config(struct i2c_client *client) +{ + unsigned int k; + struct ads1015_data *data = i2c_get_clientdata(client); + struct ads1015_platform_data *pdata = dev_get_platdata(&client->dev); + + /* prefer platform data */ + if (pdata) { + memcpy(data->channel_data, pdata->channel_data, + sizeof(data->channel_data)); + return; + } + +#ifdef CONFIG_OF + if (!ads1015_get_channels_config_of(client)) + return; +#endif + + /* fallback on default configuration */ + for (k = 0; k < ADS1015_CHANNELS; ++k) { + data->channel_data[k].enabled = true; + data->channel_data[k].pga = ADS1015_DEFAULT_PGA; + data->channel_data[k].data_rate = ADS1015_DEFAULT_DATA_RATE; + } +} + +static int ads1015_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct ads1015_data *data; + int err; + unsigned int k; + + data = kzalloc(sizeof(struct ads1015_data), GFP_KERNEL); + if (!data) { + err = -ENOMEM; + goto exit; + } + + i2c_set_clientdata(client, data); + mutex_init(&data->update_lock); + + /* build sysfs attribute group */ + ads1015_get_channels_config(client); + for (k = 0; k < ADS1015_CHANNELS; ++k) { + if (!data->channel_data[k].enabled) + continue; + err = device_create_file(&client->dev, &ads1015_in[k].dev_attr); + if (err) + goto exit_free; + } + + data->hwmon_dev = hwmon_device_register(&client->dev); + if (IS_ERR(data->hwmon_dev)) { + err = PTR_ERR(data->hwmon_dev); + goto exit_remove; + } + + return 0; + +exit_remove: + for (k = 0; k < ADS1015_CHANNELS; ++k) + device_remove_file(&client->dev, &ads1015_in[k].dev_attr); +exit_free: + kfree(data); +exit: + return err; +} + +static const struct i2c_device_id ads1015_id[] = { + { "ads1015", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, ads1015_id); + +static struct i2c_driver ads1015_driver = { + .driver = { + .name = "ads1015", + }, + .probe = ads1015_probe, + .remove = ads1015_remove, + .id_table = ads1015_id, +}; + +static int __init sensors_ads1015_init(void) +{ + return i2c_add_driver(&ads1015_driver); +} + +static void __exit sensors_ads1015_exit(void) +{ + i2c_del_driver(&ads1015_driver); +} + +MODULE_AUTHOR("Dirk Eibach <eibach@gdsys.de>"); +MODULE_DESCRIPTION("ADS1015 driver"); +MODULE_LICENSE("GPL"); + +module_init(sensors_ads1015_init); +module_exit(sensors_ads1015_exit); diff --git a/drivers/hwmon/hp_accel.c b/drivers/hwmon/hp_accel.c deleted file mode 100644 index 3d21fa2b97cd..000000000000 --- a/drivers/hwmon/hp_accel.c +++ /dev/null @@ -1,405 +0,0 @@ -/* - * hp_accel.c - Interface between LIS3LV02DL driver and HP ACPI BIOS - * - * Copyright (C) 2007-2008 Yan Burman - * Copyright (C) 2008 Eric Piel - * Copyright (C) 2008-2009 Pavel Machek - * - * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/dmi.h> -#include <linux/module.h> -#include <linux/types.h> -#include <linux/platform_device.h> -#include <linux/interrupt.h> -#include <linux/delay.h> -#include <linux/wait.h> -#include <linux/poll.h> -#include <linux/freezer.h> -#include <linux/uaccess.h> -#include <linux/leds.h> -#include <acpi/acpi_drivers.h> -#include <asm/atomic.h> -#include "lis3lv02d.h" - -#define DRIVER_NAME "lis3lv02d" -#define ACPI_MDPS_CLASS "accelerometer" - -/* Delayed LEDs infrastructure ------------------------------------ */ - -/* Special LED class that can defer work */ -struct delayed_led_classdev { - struct led_classdev led_classdev; - struct work_struct work; - enum led_brightness new_brightness; - - unsigned int led; /* For driver */ - void (*set_brightness)(struct delayed_led_classdev *data, enum led_brightness value); -}; - -static inline void delayed_set_status_worker(struct work_struct *work) -{ - struct delayed_led_classdev *data = - container_of(work, struct delayed_led_classdev, work); - - data->set_brightness(data, data->new_brightness); -} - -static inline void delayed_sysfs_set(struct led_classdev *led_cdev, - enum led_brightness brightness) -{ - struct delayed_led_classdev *data = container_of(led_cdev, - struct delayed_led_classdev, led_classdev); - data->new_brightness = brightness; - schedule_work(&data->work); -} - -/* HP-specific accelerometer driver ------------------------------------ */ - -/* For automatic insertion of the module */ -static struct acpi_device_id lis3lv02d_device_ids[] = { - {"HPQ0004", 0}, /* HP Mobile Data Protection System PNP */ - {"", 0}, -}; -MODULE_DEVICE_TABLE(acpi, lis3lv02d_device_ids); - - -/** - * lis3lv02d_acpi_init - ACPI _INI method: initialize the device. - * @lis3: pointer to the device struct - * - * Returns 0 on success. - */ -int lis3lv02d_acpi_init(struct lis3lv02d *lis3) -{ - struct acpi_device *dev = lis3->bus_priv; - if (acpi_evaluate_object(dev->handle, METHOD_NAME__INI, - NULL, NULL) != AE_OK) - return -EINVAL; - - return 0; -} - -/** - * lis3lv02d_acpi_read - ACPI ALRD method: read a register - * @lis3: pointer to the device struct - * @reg: the register to read - * @ret: result of the operation - * - * Returns 0 on success. - */ -int lis3lv02d_acpi_read(struct lis3lv02d *lis3, int reg, u8 *ret) -{ - struct acpi_device *dev = lis3->bus_priv; - union acpi_object arg0 = { ACPI_TYPE_INTEGER }; - struct acpi_object_list args = { 1, &arg0 }; - unsigned long long lret; - acpi_status status; - - arg0.integer.value = reg; - - status = acpi_evaluate_integer(dev->handle, "ALRD", &args, &lret); - *ret = lret; - return (status != AE_OK) ? -EINVAL : 0; -} - -/** - * lis3lv02d_acpi_write - ACPI ALWR method: write to a register - * @lis3: pointer to the device struct - * @reg: the register to write to - * @val: the value to write - * - * Returns 0 on success. - */ -int lis3lv02d_acpi_write(struct lis3lv02d *lis3, int reg, u8 val) -{ - struct acpi_device *dev = lis3->bus_priv; - unsigned long long ret; /* Not used when writting */ - union acpi_object in_obj[2]; - struct acpi_object_list args = { 2, in_obj }; - - in_obj[0].type = ACPI_TYPE_INTEGER; - in_obj[0].integer.value = reg; - in_obj[1].type = ACPI_TYPE_INTEGER; - in_obj[1].integer.value = val; - - if (acpi_evaluate_integer(dev->handle, "ALWR", &args, &ret) != AE_OK) - return -EINVAL; - - return 0; -} - -static int lis3lv02d_dmi_matched(const struct dmi_system_id *dmi) -{ - lis3_dev.ac = *((union axis_conversion *)dmi->driver_data); - pr_info("hardware type %s found\n", dmi->ident); - - return 1; -} - -/* Represents, for each axis seen by userspace, the corresponding hw axis (+1). - * If the value is negative, the opposite of the hw value is used. */ -#define DEFINE_CONV(name, x, y, z) \ - static union axis_conversion lis3lv02d_axis_##name = \ - { .as_array = { x, y, z } } -DEFINE_CONV(normal, 1, 2, 3); -DEFINE_CONV(y_inverted, 1, -2, 3); -DEFINE_CONV(x_inverted, -1, 2, 3); -DEFINE_CONV(z_inverted, 1, 2, -3); -DEFINE_CONV(xy_swap, 2, 1, 3); -DEFINE_CONV(xy_rotated_left, -2, 1, 3); -DEFINE_CONV(xy_rotated_left_usd, -2, 1, -3); -DEFINE_CONV(xy_swap_inverted, -2, -1, 3); -DEFINE_CONV(xy_rotated_right, 2, -1, 3); -DEFINE_CONV(xy_swap_yz_inverted, 2, -1, -3); - -#define AXIS_DMI_MATCH(_ident, _name, _axis) { \ - .ident = _ident, \ - .callback = lis3lv02d_dmi_matched, \ - .matches = { \ - DMI_MATCH(DMI_PRODUCT_NAME, _name) \ - }, \ - .driver_data = &lis3lv02d_axis_##_axis \ -} - -#define AXIS_DMI_MATCH2(_ident, _class1, _name1, \ - _class2, _name2, \ - _axis) { \ - .ident = _ident, \ - .callback = lis3lv02d_dmi_matched, \ - .matches = { \ - DMI_MATCH(DMI_##_class1, _name1), \ - DMI_MATCH(DMI_##_class2, _name2), \ - }, \ - .driver_data = &lis3lv02d_axis_##_axis \ -} -static struct dmi_system_id lis3lv02d_dmi_ids[] = { - /* product names are truncated to match all kinds of a same model */ - AXIS_DMI_MATCH("NC64x0", "HP Compaq nc64", x_inverted), - AXIS_DMI_MATCH("NC84x0", "HP Compaq nc84", z_inverted), - AXIS_DMI_MATCH("NX9420", "HP Compaq nx9420", x_inverted), - AXIS_DMI_MATCH("NW9440", "HP Compaq nw9440", x_inverted), - AXIS_DMI_MATCH("NC2510", "HP Compaq 2510", y_inverted), - AXIS_DMI_MATCH("NC2710", "HP Compaq 2710", xy_swap), - AXIS_DMI_MATCH("NC8510", "HP Compaq 8510", xy_swap_inverted), - AXIS_DMI_MATCH("HP2133", "HP 2133", xy_rotated_left), - AXIS_DMI_MATCH("HP2140", "HP 2140", xy_swap_inverted), - AXIS_DMI_MATCH("NC653x", "HP Compaq 653", xy_rotated_left_usd), - AXIS_DMI_MATCH("NC6730b", "HP Compaq 6730b", xy_rotated_left_usd), - AXIS_DMI_MATCH("NC6730s", "HP Compaq 6730s", xy_swap), - AXIS_DMI_MATCH("NC651xx", "HP Compaq 651", xy_rotated_right), - AXIS_DMI_MATCH("NC6710x", "HP Compaq 6710", xy_swap_yz_inverted), - AXIS_DMI_MATCH("NC6715x", "HP Compaq 6715", y_inverted), - AXIS_DMI_MATCH("NC693xx", "HP EliteBook 693", xy_rotated_right), - AXIS_DMI_MATCH("NC693xx", "HP EliteBook 853", xy_swap), - /* Intel-based HP Pavilion dv5 */ - AXIS_DMI_MATCH2("HPDV5_I", - PRODUCT_NAME, "HP Pavilion dv5", - BOARD_NAME, "3603", - x_inverted), - /* AMD-based HP Pavilion dv5 */ - AXIS_DMI_MATCH2("HPDV5_A", - PRODUCT_NAME, "HP Pavilion dv5", - BOARD_NAME, "3600", - y_inverted), - AXIS_DMI_MATCH("DV7", "HP Pavilion dv7", x_inverted), - AXIS_DMI_MATCH("HP8710", "HP Compaq 8710", y_inverted), - AXIS_DMI_MATCH("HDX18", "HP HDX 18", x_inverted), - AXIS_DMI_MATCH("HPB432x", "HP ProBook 432", xy_rotated_left), - AXIS_DMI_MATCH("HPB442x", "HP ProBook 442", xy_rotated_left), - AXIS_DMI_MATCH("HPB452x", "HP ProBook 452", y_inverted), - AXIS_DMI_MATCH("HPB522x", "HP ProBook 522", xy_swap), - AXIS_DMI_MATCH("HPB532x", "HP ProBook 532", y_inverted), - AXIS_DMI_MATCH("Mini510x", "HP Mini 510", xy_rotated_left_usd), - { NULL, } -/* Laptop models without axis info (yet): - * "NC6910" "HP Compaq 6910" - * "NC2400" "HP Compaq nc2400" - * "NX74x0" "HP Compaq nx74" - * "NX6325" "HP Compaq nx6325" - * "NC4400" "HP Compaq nc4400" - */ -}; - -static void hpled_set(struct delayed_led_classdev *led_cdev, enum led_brightness value) -{ - struct acpi_device *dev = lis3_dev.bus_priv; - unsigned long long ret; /* Not used when writing */ - union acpi_object in_obj[1]; - struct acpi_object_list args = { 1, in_obj }; - - in_obj[0].type = ACPI_TYPE_INTEGER; - in_obj[0].integer.value = !!value; - - acpi_evaluate_integer(dev->handle, "ALED", &args, &ret); -} - -static struct delayed_led_classdev hpled_led = { - .led_classdev = { - .name = "hp::hddprotect", - .default_trigger = "none", - .brightness_set = delayed_sysfs_set, - .flags = LED_CORE_SUSPENDRESUME, - }, - .set_brightness = hpled_set, -}; - -static acpi_status -lis3lv02d_get_resource(struct acpi_resource *resource, void *context) -{ - if (resource->type == ACPI_RESOURCE_TYPE_EXTENDED_IRQ) { - struct acpi_resource_extended_irq *irq; - u32 *device_irq = context; - - irq = &resource->data.extended_irq; - *device_irq = irq->interrupts[0]; - } - - return AE_OK; -} - -static void lis3lv02d_enum_resources(struct acpi_device *device) -{ - acpi_status status; - - status = acpi_walk_resources(device->handle, METHOD_NAME__CRS, - lis3lv02d_get_resource, &lis3_dev.irq); - if (ACPI_FAILURE(status)) - printk(KERN_DEBUG DRIVER_NAME ": Error getting resources\n"); -} - -static int lis3lv02d_add(struct acpi_device *device) -{ - int ret; - - if (!device) - return -EINVAL; - - lis3_dev.bus_priv = device; - lis3_dev.init = lis3lv02d_acpi_init; - lis3_dev.read = lis3lv02d_acpi_read; - lis3_dev.write = lis3lv02d_acpi_write; - strcpy(acpi_device_name(device), DRIVER_NAME); - strcpy(acpi_device_class(device), ACPI_MDPS_CLASS); - device->driver_data = &lis3_dev; - - /* obtain IRQ number of our device from ACPI */ - lis3lv02d_enum_resources(device); - - /* If possible use a "standard" axes order */ - if (lis3_dev.ac.x && lis3_dev.ac.y && lis3_dev.ac.z) { - pr_info("Using custom axes %d,%d,%d\n", - lis3_dev.ac.x, lis3_dev.ac.y, lis3_dev.ac.z); - } else if (dmi_check_system(lis3lv02d_dmi_ids) == 0) { - pr_info("laptop model unknown, using default axes configuration\n"); - lis3_dev.ac = lis3lv02d_axis_normal; - } - - /* call the core layer do its init */ - ret = lis3lv02d_init_device(&lis3_dev); - if (ret) - return ret; - - INIT_WORK(&hpled_led.work, delayed_set_status_worker); - ret = led_classdev_register(NULL, &hpled_led.led_classdev); - if (ret) { - lis3lv02d_joystick_disable(); - lis3lv02d_poweroff(&lis3_dev); - flush_work(&hpled_led.work); - return ret; - } - - return ret; -} - -static int lis3lv02d_remove(struct acpi_device *device, int type) -{ - if (!device) - return -EINVAL; - - lis3lv02d_joystick_disable(); - lis3lv02d_poweroff(&lis3_dev); - - led_classdev_unregister(&hpled_led.led_classdev); - flush_work(&hpled_led.work); - - return lis3lv02d_remove_fs(&lis3_dev); -} - - -#ifdef CONFIG_PM -static int lis3lv02d_suspend(struct acpi_device *device, pm_message_t state) -{ - /* make sure the device is off when we suspend */ - lis3lv02d_poweroff(&lis3_dev); - return 0; -} - -static int lis3lv02d_resume(struct acpi_device *device) -{ - lis3lv02d_poweron(&lis3_dev); - return 0; -} -#else -#define lis3lv02d_suspend NULL -#define lis3lv02d_resume NULL -#endif - -/* For the HP MDPS aka 3D Driveguard */ -static struct acpi_driver lis3lv02d_driver = { - .name = DRIVER_NAME, - .class = ACPI_MDPS_CLASS, - .ids = lis3lv02d_device_ids, - .ops = { - .add = lis3lv02d_add, - .remove = lis3lv02d_remove, - .suspend = lis3lv02d_suspend, - .resume = lis3lv02d_resume, - } -}; - -static int __init lis3lv02d_init_module(void) -{ - int ret; - - if (acpi_disabled) - return -ENODEV; - - ret = acpi_bus_register_driver(&lis3lv02d_driver); - if (ret < 0) - return ret; - - pr_info("driver loaded\n"); - - return 0; -} - -static void __exit lis3lv02d_exit_module(void) -{ - acpi_bus_unregister_driver(&lis3lv02d_driver); -} - -MODULE_DESCRIPTION("Glue between LIS3LV02Dx and HP ACPI BIOS and support for disk protection LED."); -MODULE_AUTHOR("Yan Burman, Eric Piel, Pavel Machek"); -MODULE_LICENSE("GPL"); - -module_init(lis3lv02d_init_module); -module_exit(lis3lv02d_exit_module); - diff --git a/drivers/hwmon/jz4740-hwmon.c b/drivers/hwmon/jz4740-hwmon.c index 1c8b3d9e2051..fea292d43407 100644 --- a/drivers/hwmon/jz4740-hwmon.c +++ b/drivers/hwmon/jz4740-hwmon.c @@ -32,7 +32,7 @@ struct jz4740_hwmon { int irq; - struct mfd_cell *cell; + const struct mfd_cell *cell; struct device *hwmon; struct completion read_completion; @@ -112,7 +112,7 @@ static int __devinit jz4740_hwmon_probe(struct platform_device *pdev) return -ENOMEM; } - hwmon->cell = pdev->dev.platform_data; + hwmon->cell = mfd_get_cell(pdev); hwmon->irq = platform_get_irq(pdev, 0); if (hwmon->irq < 0) { diff --git a/drivers/hwmon/lis3lv02d.c b/drivers/hwmon/lis3lv02d.c deleted file mode 100644 index d805e8e57967..000000000000 --- a/drivers/hwmon/lis3lv02d.c +++ /dev/null @@ -1,1000 +0,0 @@ -/* - * lis3lv02d.c - ST LIS3LV02DL accelerometer driver - * - * Copyright (C) 2007-2008 Yan Burman - * Copyright (C) 2008 Eric Piel - * Copyright (C) 2008-2009 Pavel Machek - * - * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/dmi.h> -#include <linux/module.h> -#include <linux/types.h> -#include <linux/platform_device.h> -#include <linux/interrupt.h> -#include <linux/input-polldev.h> -#include <linux/delay.h> -#include <linux/wait.h> -#include <linux/poll.h> -#include <linux/slab.h> -#include <linux/freezer.h> -#include <linux/uaccess.h> -#include <linux/miscdevice.h> -#include <linux/pm_runtime.h> -#include <asm/atomic.h> -#include "lis3lv02d.h" - -#define DRIVER_NAME "lis3lv02d" - -/* joystick device poll interval in milliseconds */ -#define MDPS_POLL_INTERVAL 50 -#define MDPS_POLL_MIN 0 -#define MDPS_POLL_MAX 2000 - -#define LIS3_SYSFS_POWERDOWN_DELAY 5000 /* In milliseconds */ - -#define SELFTEST_OK 0 -#define SELFTEST_FAIL -1 -#define SELFTEST_IRQ -2 - -#define IRQ_LINE0 0 -#define IRQ_LINE1 1 - -/* - * The sensor can also generate interrupts (DRDY) but it's pretty pointless - * because they are generated even if the data do not change. So it's better - * to keep the interrupt for the free-fall event. The values are updated at - * 40Hz (at the lowest frequency), but as it can be pretty time consuming on - * some low processor, we poll the sensor only at 20Hz... enough for the - * joystick. - */ - -#define LIS3_PWRON_DELAY_WAI_12B (5000) -#define LIS3_PWRON_DELAY_WAI_8B (3000) - -/* - * LIS3LV02D spec says 1024 LSBs corresponds 1 G -> 1LSB is 1000/1024 mG - * LIS302D spec says: 18 mG / digit - * LIS3_ACCURACY is used to increase accuracy of the intermediate - * calculation results. - */ -#define LIS3_ACCURACY 1024 -/* Sensitivity values for -2G +2G scale */ -#define LIS3_SENSITIVITY_12B ((LIS3_ACCURACY * 1000) / 1024) -#define LIS3_SENSITIVITY_8B (18 * LIS3_ACCURACY) - -#define LIS3_DEFAULT_FUZZ_12B 3 -#define LIS3_DEFAULT_FLAT_12B 3 -#define LIS3_DEFAULT_FUZZ_8B 1 -#define LIS3_DEFAULT_FLAT_8B 1 - -struct lis3lv02d lis3_dev = { - .misc_wait = __WAIT_QUEUE_HEAD_INITIALIZER(lis3_dev.misc_wait), -}; - -EXPORT_SYMBOL_GPL(lis3_dev); - -/* just like param_set_int() but does sanity-check so that it won't point - * over the axis array size - */ -static int param_set_axis(const char *val, const struct kernel_param *kp) -{ - int ret = param_set_int(val, kp); - if (!ret) { - int val = *(int *)kp->arg; - if (val < 0) - val = -val; - if (!val || val > 3) - return -EINVAL; - } - return ret; -} - -static struct kernel_param_ops param_ops_axis = { - .set = param_set_axis, - .get = param_get_int, -}; - -module_param_array_named(axes, lis3_dev.ac.as_array, axis, NULL, 0644); -MODULE_PARM_DESC(axes, "Axis-mapping for x,y,z directions"); - -static s16 lis3lv02d_read_8(struct lis3lv02d *lis3, int reg) -{ - s8 lo; - if (lis3->read(lis3, reg, &lo) < 0) - return 0; - - return lo; -} - -static s16 lis3lv02d_read_12(struct lis3lv02d *lis3, int reg) -{ - u8 lo, hi; - - lis3->read(lis3, reg - 1, &lo); - lis3->read(lis3, reg, &hi); - /* In "12 bit right justified" mode, bit 6, bit 7, bit 8 = bit 5 */ - return (s16)((hi << 8) | lo); -} - -/** - * lis3lv02d_get_axis - For the given axis, give the value converted - * @axis: 1,2,3 - can also be negative - * @hw_values: raw values returned by the hardware - * - * Returns the converted value. - */ -static inline int lis3lv02d_get_axis(s8 axis, int hw_values[3]) -{ - if (axis > 0) - return hw_values[axis - 1]; - else - return -hw_values[-axis - 1]; -} - -/** - * lis3lv02d_get_xyz - Get X, Y and Z axis values from the accelerometer - * @lis3: pointer to the device struct - * @x: where to store the X axis value - * @y: where to store the Y axis value - * @z: where to store the Z axis value - * - * Note that 40Hz input device can eat up about 10% CPU at 800MHZ - */ -static void lis3lv02d_get_xyz(struct lis3lv02d *lis3, int *x, int *y, int *z) -{ - int position[3]; - int i; - - if (lis3->blkread) { - if (lis3_dev.whoami == WAI_12B) { - u16 data[3]; - lis3->blkread(lis3, OUTX_L, 6, (u8 *)data); - for (i = 0; i < 3; i++) - position[i] = (s16)le16_to_cpu(data[i]); - } else { - u8 data[5]; - /* Data: x, dummy, y, dummy, z */ - lis3->blkread(lis3, OUTX, 5, data); - for (i = 0; i < 3; i++) - position[i] = (s8)data[i * 2]; - } - } else { - position[0] = lis3->read_data(lis3, OUTX); - position[1] = lis3->read_data(lis3, OUTY); - position[2] = lis3->read_data(lis3, OUTZ); - } - - for (i = 0; i < 3; i++) - position[i] = (position[i] * lis3->scale) / LIS3_ACCURACY; - - *x = lis3lv02d_get_axis(lis3->ac.x, position); - *y = lis3lv02d_get_axis(lis3->ac.y, position); - *z = lis3lv02d_get_axis(lis3->ac.z, position); -} - -/* conversion btw sampling rate and the register values */ -static int lis3_12_rates[4] = {40, 160, 640, 2560}; -static int lis3_8_rates[2] = {100, 400}; -static int lis3_3dc_rates[16] = {0, 1, 10, 25, 50, 100, 200, 400, 1600, 5000}; - -/* ODR is Output Data Rate */ -static int lis3lv02d_get_odr(void) -{ - u8 ctrl; - int shift; - - lis3_dev.read(&lis3_dev, CTRL_REG1, &ctrl); - ctrl &= lis3_dev.odr_mask; - shift = ffs(lis3_dev.odr_mask) - 1; - return lis3_dev.odrs[(ctrl >> shift)]; -} - -static int lis3lv02d_set_odr(int rate) -{ - u8 ctrl; - int i, len, shift; - - if (!rate) - return -EINVAL; - - lis3_dev.read(&lis3_dev, CTRL_REG1, &ctrl); - ctrl &= ~lis3_dev.odr_mask; - len = 1 << hweight_long(lis3_dev.odr_mask); /* # of possible values */ - shift = ffs(lis3_dev.odr_mask) - 1; - - for (i = 0; i < len; i++) - if (lis3_dev.odrs[i] == rate) { - lis3_dev.write(&lis3_dev, CTRL_REG1, - ctrl | (i << shift)); - return 0; - } - return -EINVAL; -} - -static int lis3lv02d_selftest(struct lis3lv02d *lis3, s16 results[3]) -{ - u8 ctlreg, reg; - s16 x, y, z; - u8 selftest; - int ret; - u8 ctrl_reg_data; - unsigned char irq_cfg; - - mutex_lock(&lis3->mutex); - - irq_cfg = lis3->irq_cfg; - if (lis3_dev.whoami == WAI_8B) { - lis3->data_ready_count[IRQ_LINE0] = 0; - lis3->data_ready_count[IRQ_LINE1] = 0; - - /* Change interrupt cfg to data ready for selftest */ - atomic_inc(&lis3_dev.wake_thread); - lis3->irq_cfg = LIS3_IRQ1_DATA_READY | LIS3_IRQ2_DATA_READY; - lis3->read(lis3, CTRL_REG3, &ctrl_reg_data); - lis3->write(lis3, CTRL_REG3, (ctrl_reg_data & - ~(LIS3_IRQ1_MASK | LIS3_IRQ2_MASK)) | - (LIS3_IRQ1_DATA_READY | LIS3_IRQ2_DATA_READY)); - } - - if (lis3_dev.whoami == WAI_3DC) { - ctlreg = CTRL_REG4; - selftest = CTRL4_ST0; - } else { - ctlreg = CTRL_REG1; - if (lis3_dev.whoami == WAI_12B) - selftest = CTRL1_ST; - else - selftest = CTRL1_STP; - } - - lis3->read(lis3, ctlreg, ®); - lis3->write(lis3, ctlreg, (reg | selftest)); - msleep(lis3->pwron_delay / lis3lv02d_get_odr()); - - /* Read directly to avoid axis remap */ - x = lis3->read_data(lis3, OUTX); - y = lis3->read_data(lis3, OUTY); - z = lis3->read_data(lis3, OUTZ); - - /* back to normal settings */ - lis3->write(lis3, ctlreg, reg); - msleep(lis3->pwron_delay / lis3lv02d_get_odr()); - - results[0] = x - lis3->read_data(lis3, OUTX); - results[1] = y - lis3->read_data(lis3, OUTY); - results[2] = z - lis3->read_data(lis3, OUTZ); - - ret = 0; - - if (lis3_dev.whoami == WAI_8B) { - /* Restore original interrupt configuration */ - atomic_dec(&lis3_dev.wake_thread); - lis3->write(lis3, CTRL_REG3, ctrl_reg_data); - lis3->irq_cfg = irq_cfg; - - if ((irq_cfg & LIS3_IRQ1_MASK) && - lis3->data_ready_count[IRQ_LINE0] < 2) { - ret = SELFTEST_IRQ; - goto fail; - } - - if ((irq_cfg & LIS3_IRQ2_MASK) && - lis3->data_ready_count[IRQ_LINE1] < 2) { - ret = SELFTEST_IRQ; - goto fail; - } - } - - if (lis3->pdata) { - int i; - for (i = 0; i < 3; i++) { - /* Check against selftest acceptance limits */ - if ((results[i] < lis3->pdata->st_min_limits[i]) || - (results[i] > lis3->pdata->st_max_limits[i])) { - ret = SELFTEST_FAIL; - goto fail; - } - } - } - - /* test passed */ -fail: - mutex_unlock(&lis3->mutex); - return ret; -} - -/* - * Order of registers in the list affects to order of the restore process. - * Perhaps it is a good idea to set interrupt enable register as a last one - * after all other configurations - */ -static u8 lis3_wai8_regs[] = { FF_WU_CFG_1, FF_WU_THS_1, FF_WU_DURATION_1, - FF_WU_CFG_2, FF_WU_THS_2, FF_WU_DURATION_2, - CLICK_CFG, CLICK_SRC, CLICK_THSY_X, CLICK_THSZ, - CLICK_TIMELIMIT, CLICK_LATENCY, CLICK_WINDOW, - CTRL_REG1, CTRL_REG2, CTRL_REG3}; - -static u8 lis3_wai12_regs[] = {FF_WU_CFG, FF_WU_THS_L, FF_WU_THS_H, - FF_WU_DURATION, DD_CFG, DD_THSI_L, DD_THSI_H, - DD_THSE_L, DD_THSE_H, - CTRL_REG1, CTRL_REG3, CTRL_REG2}; - -static inline void lis3_context_save(struct lis3lv02d *lis3) -{ - int i; - for (i = 0; i < lis3->regs_size; i++) - lis3->read(lis3, lis3->regs[i], &lis3->reg_cache[i]); - lis3->regs_stored = true; -} - -static inline void lis3_context_restore(struct lis3lv02d *lis3) -{ - int i; - if (lis3->regs_stored) - for (i = 0; i < lis3->regs_size; i++) - lis3->write(lis3, lis3->regs[i], lis3->reg_cache[i]); -} - -void lis3lv02d_poweroff(struct lis3lv02d *lis3) -{ - if (lis3->reg_ctrl) - lis3_context_save(lis3); - /* disable X,Y,Z axis and power down */ - lis3->write(lis3, CTRL_REG1, 0x00); - if (lis3->reg_ctrl) - lis3->reg_ctrl(lis3, LIS3_REG_OFF); -} -EXPORT_SYMBOL_GPL(lis3lv02d_poweroff); - -void lis3lv02d_poweron(struct lis3lv02d *lis3) -{ - u8 reg; - - lis3->init(lis3); - - /* - * Common configuration - * BDU: (12 bits sensors only) LSB and MSB values are not updated until - * both have been read. So the value read will always be correct. - * Set BOOT bit to refresh factory tuning values. - */ - lis3->read(lis3, CTRL_REG2, ®); - if (lis3->whoami == WAI_12B) - reg |= CTRL2_BDU | CTRL2_BOOT; - else - reg |= CTRL2_BOOT_8B; - lis3->write(lis3, CTRL_REG2, reg); - - /* LIS3 power on delay is quite long */ - msleep(lis3->pwron_delay / lis3lv02d_get_odr()); - - if (lis3->reg_ctrl) - lis3_context_restore(lis3); -} -EXPORT_SYMBOL_GPL(lis3lv02d_poweron); - - -static void lis3lv02d_joystick_poll(struct input_polled_dev *pidev) -{ - int x, y, z; - - mutex_lock(&lis3_dev.mutex); - lis3lv02d_get_xyz(&lis3_dev, &x, &y, &z); - input_report_abs(pidev->input, ABS_X, x); - input_report_abs(pidev->input, ABS_Y, y); - input_report_abs(pidev->input, ABS_Z, z); - input_sync(pidev->input); - mutex_unlock(&lis3_dev.mutex); -} - -static void lis3lv02d_joystick_open(struct input_polled_dev *pidev) -{ - if (lis3_dev.pm_dev) - pm_runtime_get_sync(lis3_dev.pm_dev); - - if (lis3_dev.pdata && lis3_dev.whoami == WAI_8B && lis3_dev.idev) - atomic_set(&lis3_dev.wake_thread, 1); - /* - * Update coordinates for the case where poll interval is 0 and - * the chip in running purely under interrupt control - */ - lis3lv02d_joystick_poll(pidev); -} - -static void lis3lv02d_joystick_close(struct input_polled_dev *pidev) -{ - atomic_set(&lis3_dev.wake_thread, 0); - if (lis3_dev.pm_dev) - pm_runtime_put(lis3_dev.pm_dev); -} - -static irqreturn_t lis302dl_interrupt(int irq, void *dummy) -{ - if (!test_bit(0, &lis3_dev.misc_opened)) - goto out; - - /* - * Be careful: on some HP laptops the bios force DD when on battery and - * the lid is closed. This leads to interrupts as soon as a little move - * is done. - */ - atomic_inc(&lis3_dev.count); - - wake_up_interruptible(&lis3_dev.misc_wait); - kill_fasync(&lis3_dev.async_queue, SIGIO, POLL_IN); -out: - if (atomic_read(&lis3_dev.wake_thread)) - return IRQ_WAKE_THREAD; - return IRQ_HANDLED; -} - -static void lis302dl_interrupt_handle_click(struct lis3lv02d *lis3) -{ - struct input_dev *dev = lis3->idev->input; - u8 click_src; - - mutex_lock(&lis3->mutex); - lis3->read(lis3, CLICK_SRC, &click_src); - - if (click_src & CLICK_SINGLE_X) { - input_report_key(dev, lis3->mapped_btns[0], 1); - input_report_key(dev, lis3->mapped_btns[0], 0); - } - - if (click_src & CLICK_SINGLE_Y) { - input_report_key(dev, lis3->mapped_btns[1], 1); - input_report_key(dev, lis3->mapped_btns[1], 0); - } - - if (click_src & CLICK_SINGLE_Z) { - input_report_key(dev, lis3->mapped_btns[2], 1); - input_report_key(dev, lis3->mapped_btns[2], 0); - } - input_sync(dev); - mutex_unlock(&lis3->mutex); -} - -static inline void lis302dl_data_ready(struct lis3lv02d *lis3, int index) -{ - int dummy; - - /* Dummy read to ack interrupt */ - lis3lv02d_get_xyz(lis3, &dummy, &dummy, &dummy); - lis3->data_ready_count[index]++; -} - -static irqreturn_t lis302dl_interrupt_thread1_8b(int irq, void *data) -{ - struct lis3lv02d *lis3 = data; - u8 irq_cfg = lis3->irq_cfg & LIS3_IRQ1_MASK; - - if (irq_cfg == LIS3_IRQ1_CLICK) - lis302dl_interrupt_handle_click(lis3); - else if (unlikely(irq_cfg == LIS3_IRQ1_DATA_READY)) - lis302dl_data_ready(lis3, IRQ_LINE0); - else - lis3lv02d_joystick_poll(lis3->idev); - - return IRQ_HANDLED; -} - -static irqreturn_t lis302dl_interrupt_thread2_8b(int irq, void *data) -{ - struct lis3lv02d *lis3 = data; - u8 irq_cfg = lis3->irq_cfg & LIS3_IRQ2_MASK; - - if (irq_cfg == LIS3_IRQ2_CLICK) - lis302dl_interrupt_handle_click(lis3); - else if (unlikely(irq_cfg == LIS3_IRQ2_DATA_READY)) - lis302dl_data_ready(lis3, IRQ_LINE1); - else - lis3lv02d_joystick_poll(lis3->idev); - - return IRQ_HANDLED; -} - -static int lis3lv02d_misc_open(struct inode *inode, struct file *file) -{ - if (test_and_set_bit(0, &lis3_dev.misc_opened)) - return -EBUSY; /* already open */ - - if (lis3_dev.pm_dev) - pm_runtime_get_sync(lis3_dev.pm_dev); - - atomic_set(&lis3_dev.count, 0); - return 0; -} - -static int lis3lv02d_misc_release(struct inode *inode, struct file *file) -{ - fasync_helper(-1, file, 0, &lis3_dev.async_queue); - clear_bit(0, &lis3_dev.misc_opened); /* release the device */ - if (lis3_dev.pm_dev) - pm_runtime_put(lis3_dev.pm_dev); - return 0; -} - -static ssize_t lis3lv02d_misc_read(struct file *file, char __user *buf, - size_t count, loff_t *pos) -{ - DECLARE_WAITQUEUE(wait, current); - u32 data; - unsigned char byte_data; - ssize_t retval = 1; - - if (count < 1) - return -EINVAL; - - add_wait_queue(&lis3_dev.misc_wait, &wait); - while (true) { - set_current_state(TASK_INTERRUPTIBLE); - data = atomic_xchg(&lis3_dev.count, 0); - if (data) - break; - - if (file->f_flags & O_NONBLOCK) { - retval = -EAGAIN; - goto out; - } - - if (signal_pending(current)) { - retval = -ERESTARTSYS; - goto out; - } - - schedule(); - } - - if (data < 255) - byte_data = data; - else - byte_data = 255; - - /* make sure we are not going into copy_to_user() with - * TASK_INTERRUPTIBLE state */ - set_current_state(TASK_RUNNING); - if (copy_to_user(buf, &byte_data, sizeof(byte_data))) - retval = -EFAULT; - -out: - __set_current_state(TASK_RUNNING); - remove_wait_queue(&lis3_dev.misc_wait, &wait); - - return retval; -} - -static unsigned int lis3lv02d_misc_poll(struct file *file, poll_table *wait) -{ - poll_wait(file, &lis3_dev.misc_wait, wait); - if (atomic_read(&lis3_dev.count)) - return POLLIN | POLLRDNORM; - return 0; -} - -static int lis3lv02d_misc_fasync(int fd, struct file *file, int on) -{ - return fasync_helper(fd, file, on, &lis3_dev.async_queue); -} - -static const struct file_operations lis3lv02d_misc_fops = { - .owner = THIS_MODULE, - .llseek = no_llseek, - .read = lis3lv02d_misc_read, - .open = lis3lv02d_misc_open, - .release = lis3lv02d_misc_release, - .poll = lis3lv02d_misc_poll, - .fasync = lis3lv02d_misc_fasync, -}; - -static struct miscdevice lis3lv02d_misc_device = { - .minor = MISC_DYNAMIC_MINOR, - .name = "freefall", - .fops = &lis3lv02d_misc_fops, -}; - -int lis3lv02d_joystick_enable(void) -{ - struct input_dev *input_dev; - int err; - int max_val, fuzz, flat; - int btns[] = {BTN_X, BTN_Y, BTN_Z}; - - if (lis3_dev.idev) - return -EINVAL; - - lis3_dev.idev = input_allocate_polled_device(); - if (!lis3_dev.idev) - return -ENOMEM; - - lis3_dev.idev->poll = lis3lv02d_joystick_poll; - lis3_dev.idev->open = lis3lv02d_joystick_open; - lis3_dev.idev->close = lis3lv02d_joystick_close; - lis3_dev.idev->poll_interval = MDPS_POLL_INTERVAL; - lis3_dev.idev->poll_interval_min = MDPS_POLL_MIN; - lis3_dev.idev->poll_interval_max = MDPS_POLL_MAX; - input_dev = lis3_dev.idev->input; - - input_dev->name = "ST LIS3LV02DL Accelerometer"; - input_dev->phys = DRIVER_NAME "/input0"; - input_dev->id.bustype = BUS_HOST; - input_dev->id.vendor = 0; - input_dev->dev.parent = &lis3_dev.pdev->dev; - - set_bit(EV_ABS, input_dev->evbit); - max_val = (lis3_dev.mdps_max_val * lis3_dev.scale) / LIS3_ACCURACY; - if (lis3_dev.whoami == WAI_12B) { - fuzz = LIS3_DEFAULT_FUZZ_12B; - flat = LIS3_DEFAULT_FLAT_12B; - } else { - fuzz = LIS3_DEFAULT_FUZZ_8B; - flat = LIS3_DEFAULT_FLAT_8B; - } - fuzz = (fuzz * lis3_dev.scale) / LIS3_ACCURACY; - flat = (flat * lis3_dev.scale) / LIS3_ACCURACY; - - input_set_abs_params(input_dev, ABS_X, -max_val, max_val, fuzz, flat); - input_set_abs_params(input_dev, ABS_Y, -max_val, max_val, fuzz, flat); - input_set_abs_params(input_dev, ABS_Z, -max_val, max_val, fuzz, flat); - - lis3_dev.mapped_btns[0] = lis3lv02d_get_axis(abs(lis3_dev.ac.x), btns); - lis3_dev.mapped_btns[1] = lis3lv02d_get_axis(abs(lis3_dev.ac.y), btns); - lis3_dev.mapped_btns[2] = lis3lv02d_get_axis(abs(lis3_dev.ac.z), btns); - - err = input_register_polled_device(lis3_dev.idev); - if (err) { - input_free_polled_device(lis3_dev.idev); - lis3_dev.idev = NULL; - } - - return err; -} -EXPORT_SYMBOL_GPL(lis3lv02d_joystick_enable); - -void lis3lv02d_joystick_disable(void) -{ - if (lis3_dev.irq) - free_irq(lis3_dev.irq, &lis3_dev); - if (lis3_dev.pdata && lis3_dev.pdata->irq2) - free_irq(lis3_dev.pdata->irq2, &lis3_dev); - - if (!lis3_dev.idev) - return; - - if (lis3_dev.irq) - misc_deregister(&lis3lv02d_misc_device); - input_unregister_polled_device(lis3_dev.idev); - input_free_polled_device(lis3_dev.idev); - lis3_dev.idev = NULL; -} -EXPORT_SYMBOL_GPL(lis3lv02d_joystick_disable); - -/* Sysfs stuff */ -static void lis3lv02d_sysfs_poweron(struct lis3lv02d *lis3) -{ - /* - * SYSFS functions are fast visitors so put-call - * immediately after the get-call. However, keep - * chip running for a while and schedule delayed - * suspend. This way periodic sysfs calls doesn't - * suffer from relatively long power up time. - */ - - if (lis3->pm_dev) { - pm_runtime_get_sync(lis3->pm_dev); - pm_runtime_put_noidle(lis3->pm_dev); - pm_schedule_suspend(lis3->pm_dev, LIS3_SYSFS_POWERDOWN_DELAY); - } -} - -static ssize_t lis3lv02d_selftest_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - s16 values[3]; - - static const char ok[] = "OK"; - static const char fail[] = "FAIL"; - static const char irq[] = "FAIL_IRQ"; - const char *res; - - lis3lv02d_sysfs_poweron(&lis3_dev); - switch (lis3lv02d_selftest(&lis3_dev, values)) { - case SELFTEST_FAIL: - res = fail; - break; - case SELFTEST_IRQ: - res = irq; - break; - case SELFTEST_OK: - default: - res = ok; - break; - } - return sprintf(buf, "%s %d %d %d\n", res, - values[0], values[1], values[2]); -} - -static ssize_t lis3lv02d_position_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - int x, y, z; - - lis3lv02d_sysfs_poweron(&lis3_dev); - mutex_lock(&lis3_dev.mutex); - lis3lv02d_get_xyz(&lis3_dev, &x, &y, &z); - mutex_unlock(&lis3_dev.mutex); - return sprintf(buf, "(%d,%d,%d)\n", x, y, z); -} - -static ssize_t lis3lv02d_rate_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - lis3lv02d_sysfs_poweron(&lis3_dev); - return sprintf(buf, "%d\n", lis3lv02d_get_odr()); -} - -static ssize_t lis3lv02d_rate_set(struct device *dev, - struct device_attribute *attr, const char *buf, - size_t count) -{ - unsigned long rate; - - if (strict_strtoul(buf, 0, &rate)) - return -EINVAL; - - lis3lv02d_sysfs_poweron(&lis3_dev); - if (lis3lv02d_set_odr(rate)) - return -EINVAL; - - return count; -} - -static DEVICE_ATTR(selftest, S_IRUSR, lis3lv02d_selftest_show, NULL); -static DEVICE_ATTR(position, S_IRUGO, lis3lv02d_position_show, NULL); -static DEVICE_ATTR(rate, S_IRUGO | S_IWUSR, lis3lv02d_rate_show, - lis3lv02d_rate_set); - -static struct attribute *lis3lv02d_attributes[] = { - &dev_attr_selftest.attr, - &dev_attr_position.attr, - &dev_attr_rate.attr, - NULL -}; - -static struct attribute_group lis3lv02d_attribute_group = { - .attrs = lis3lv02d_attributes -}; - - -static int lis3lv02d_add_fs(struct lis3lv02d *lis3) -{ - lis3->pdev = platform_device_register_simple(DRIVER_NAME, -1, NULL, 0); - if (IS_ERR(lis3->pdev)) - return PTR_ERR(lis3->pdev); - - return sysfs_create_group(&lis3->pdev->dev.kobj, &lis3lv02d_attribute_group); -} - -int lis3lv02d_remove_fs(struct lis3lv02d *lis3) -{ - sysfs_remove_group(&lis3->pdev->dev.kobj, &lis3lv02d_attribute_group); - platform_device_unregister(lis3->pdev); - if (lis3->pm_dev) { - /* Barrier after the sysfs remove */ - pm_runtime_barrier(lis3->pm_dev); - - /* SYSFS may have left chip running. Turn off if necessary */ - if (!pm_runtime_suspended(lis3->pm_dev)) - lis3lv02d_poweroff(&lis3_dev); - - pm_runtime_disable(lis3->pm_dev); - pm_runtime_set_suspended(lis3->pm_dev); - } - kfree(lis3->reg_cache); - return 0; -} -EXPORT_SYMBOL_GPL(lis3lv02d_remove_fs); - -static void lis3lv02d_8b_configure(struct lis3lv02d *dev, - struct lis3lv02d_platform_data *p) -{ - int err; - int ctrl2 = p->hipass_ctrl; - - if (p->click_flags) { - dev->write(dev, CLICK_CFG, p->click_flags); - dev->write(dev, CLICK_TIMELIMIT, p->click_time_limit); - dev->write(dev, CLICK_LATENCY, p->click_latency); - dev->write(dev, CLICK_WINDOW, p->click_window); - dev->write(dev, CLICK_THSZ, p->click_thresh_z & 0xf); - dev->write(dev, CLICK_THSY_X, - (p->click_thresh_x & 0xf) | - (p->click_thresh_y << 4)); - - if (dev->idev) { - struct input_dev *input_dev = lis3_dev.idev->input; - input_set_capability(input_dev, EV_KEY, BTN_X); - input_set_capability(input_dev, EV_KEY, BTN_Y); - input_set_capability(input_dev, EV_KEY, BTN_Z); - } - } - - if (p->wakeup_flags) { - dev->write(dev, FF_WU_CFG_1, p->wakeup_flags); - dev->write(dev, FF_WU_THS_1, p->wakeup_thresh & 0x7f); - /* pdata value + 1 to keep this backward compatible*/ - dev->write(dev, FF_WU_DURATION_1, p->duration1 + 1); - ctrl2 ^= HP_FF_WU1; /* Xor to keep compatible with old pdata*/ - } - - if (p->wakeup_flags2) { - dev->write(dev, FF_WU_CFG_2, p->wakeup_flags2); - dev->write(dev, FF_WU_THS_2, p->wakeup_thresh2 & 0x7f); - /* pdata value + 1 to keep this backward compatible*/ - dev->write(dev, FF_WU_DURATION_2, p->duration2 + 1); - ctrl2 ^= HP_FF_WU2; /* Xor to keep compatible with old pdata*/ - } - /* Configure hipass filters */ - dev->write(dev, CTRL_REG2, ctrl2); - - if (p->irq2) { - err = request_threaded_irq(p->irq2, - NULL, - lis302dl_interrupt_thread2_8b, - IRQF_TRIGGER_RISING | IRQF_ONESHOT | - (p->irq_flags2 & IRQF_TRIGGER_MASK), - DRIVER_NAME, &lis3_dev); - if (err < 0) - pr_err("No second IRQ. Limited functionality\n"); - } -} - -/* - * Initialise the accelerometer and the various subsystems. - * Should be rather independent of the bus system. - */ -int lis3lv02d_init_device(struct lis3lv02d *dev) -{ - int err; - irq_handler_t thread_fn; - int irq_flags = 0; - - dev->whoami = lis3lv02d_read_8(dev, WHO_AM_I); - - switch (dev->whoami) { - case WAI_12B: - pr_info("12 bits sensor found\n"); - dev->read_data = lis3lv02d_read_12; - dev->mdps_max_val = 2048; - dev->pwron_delay = LIS3_PWRON_DELAY_WAI_12B; - dev->odrs = lis3_12_rates; - dev->odr_mask = CTRL1_DF0 | CTRL1_DF1; - dev->scale = LIS3_SENSITIVITY_12B; - dev->regs = lis3_wai12_regs; - dev->regs_size = ARRAY_SIZE(lis3_wai12_regs); - break; - case WAI_8B: - pr_info("8 bits sensor found\n"); - dev->read_data = lis3lv02d_read_8; - dev->mdps_max_val = 128; - dev->pwron_delay = LIS3_PWRON_DELAY_WAI_8B; - dev->odrs = lis3_8_rates; - dev->odr_mask = CTRL1_DR; - dev->scale = LIS3_SENSITIVITY_8B; - dev->regs = lis3_wai8_regs; - dev->regs_size = ARRAY_SIZE(lis3_wai8_regs); - break; - case WAI_3DC: - pr_info("8 bits 3DC sensor found\n"); - dev->read_data = lis3lv02d_read_8; - dev->mdps_max_val = 128; - dev->pwron_delay = LIS3_PWRON_DELAY_WAI_8B; - dev->odrs = lis3_3dc_rates; - dev->odr_mask = CTRL1_ODR0|CTRL1_ODR1|CTRL1_ODR2|CTRL1_ODR3; - dev->scale = LIS3_SENSITIVITY_8B; - break; - default: - pr_err("unknown sensor type 0x%X\n", dev->whoami); - return -EINVAL; - } - - dev->reg_cache = kzalloc(max(sizeof(lis3_wai8_regs), - sizeof(lis3_wai12_regs)), GFP_KERNEL); - - if (dev->reg_cache == NULL) { - printk(KERN_ERR DRIVER_NAME "out of memory\n"); - return -ENOMEM; - } - - mutex_init(&dev->mutex); - atomic_set(&dev->wake_thread, 0); - - lis3lv02d_add_fs(dev); - lis3lv02d_poweron(dev); - - if (dev->pm_dev) { - pm_runtime_set_active(dev->pm_dev); - pm_runtime_enable(dev->pm_dev); - } - - if (lis3lv02d_joystick_enable()) - pr_err("joystick initialization failed\n"); - - /* passing in platform specific data is purely optional and only - * used by the SPI transport layer at the moment */ - if (dev->pdata) { - struct lis3lv02d_platform_data *p = dev->pdata; - - if (dev->whoami == WAI_8B) - lis3lv02d_8b_configure(dev, p); - - irq_flags = p->irq_flags1 & IRQF_TRIGGER_MASK; - - dev->irq_cfg = p->irq_cfg; - if (p->irq_cfg) - dev->write(dev, CTRL_REG3, p->irq_cfg); - - if (p->default_rate) - lis3lv02d_set_odr(p->default_rate); - } - - /* bail if we did not get an IRQ from the bus layer */ - if (!dev->irq) { - pr_debug("No IRQ. Disabling /dev/freefall\n"); - goto out; - } - - /* - * The sensor can generate interrupts for free-fall and direction - * detection (distinguishable with FF_WU_SRC and DD_SRC) but to keep - * the things simple and _fast_ we activate it only for free-fall, so - * no need to read register (very slow with ACPI). For the same reason, - * we forbid shared interrupts. - * - * IRQF_TRIGGER_RISING seems pointless on HP laptops because the - * io-apic is not configurable (and generates a warning) but I keep it - * in case of support for other hardware. - */ - if (dev->pdata && dev->whoami == WAI_8B) - thread_fn = lis302dl_interrupt_thread1_8b; - else - thread_fn = NULL; - - err = request_threaded_irq(dev->irq, lis302dl_interrupt, - thread_fn, - IRQF_TRIGGER_RISING | IRQF_ONESHOT | - irq_flags, - DRIVER_NAME, &lis3_dev); - - if (err < 0) { - pr_err("Cannot get IRQ\n"); - goto out; - } - - if (misc_register(&lis3lv02d_misc_device)) - pr_err("misc_register failed\n"); -out: - return 0; -} -EXPORT_SYMBOL_GPL(lis3lv02d_init_device); - -MODULE_DESCRIPTION("ST LIS3LV02Dx three-axis digital accelerometer driver"); -MODULE_AUTHOR("Yan Burman, Eric Piel, Pavel Machek"); -MODULE_LICENSE("GPL"); diff --git a/drivers/hwmon/lis3lv02d.h b/drivers/hwmon/lis3lv02d.h deleted file mode 100644 index a1939589eb2c..000000000000 --- a/drivers/hwmon/lis3lv02d.h +++ /dev/null @@ -1,291 +0,0 @@ -/* - * lis3lv02d.h - ST LIS3LV02DL accelerometer driver - * - * Copyright (C) 2007-2008 Yan Burman - * Copyright (C) 2008-2009 Eric Piel - * - * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ -#include <linux/platform_device.h> -#include <linux/input-polldev.h> -#include <linux/regulator/consumer.h> - -/* - * This driver tries to support the "digital" accelerometer chips from - * STMicroelectronics such as LIS3LV02DL, LIS302DL, LIS3L02DQ, LIS331DL, - * LIS35DE, or LIS202DL. They are very similar in terms of programming, with - * almost the same registers. In addition to differing on physical properties, - * they differ on the number of axes (2/3), precision (8/12 bits), and special - * features (freefall detection, click...). Unfortunately, not all the - * differences can be probed via a register. - * They can be connected either via I²C or SPI. - */ - -#include <linux/lis3lv02d.h> - -enum lis3_reg { - WHO_AM_I = 0x0F, - OFFSET_X = 0x16, - OFFSET_Y = 0x17, - OFFSET_Z = 0x18, - GAIN_X = 0x19, - GAIN_Y = 0x1A, - GAIN_Z = 0x1B, - CTRL_REG1 = 0x20, - CTRL_REG2 = 0x21, - CTRL_REG3 = 0x22, - CTRL_REG4 = 0x23, - HP_FILTER_RESET = 0x23, - STATUS_REG = 0x27, - OUTX_L = 0x28, - OUTX_H = 0x29, - OUTX = 0x29, - OUTY_L = 0x2A, - OUTY_H = 0x2B, - OUTY = 0x2B, - OUTZ_L = 0x2C, - OUTZ_H = 0x2D, - OUTZ = 0x2D, -}; - -enum lis302d_reg { - FF_WU_CFG_1 = 0x30, - FF_WU_SRC_1 = 0x31, - FF_WU_THS_1 = 0x32, - FF_WU_DURATION_1 = 0x33, - FF_WU_CFG_2 = 0x34, - FF_WU_SRC_2 = 0x35, - FF_WU_THS_2 = 0x36, - FF_WU_DURATION_2 = 0x37, - CLICK_CFG = 0x38, - CLICK_SRC = 0x39, - CLICK_THSY_X = 0x3B, - CLICK_THSZ = 0x3C, - CLICK_TIMELIMIT = 0x3D, - CLICK_LATENCY = 0x3E, - CLICK_WINDOW = 0x3F, -}; - -enum lis3lv02d_reg { - FF_WU_CFG = 0x30, - FF_WU_SRC = 0x31, - FF_WU_ACK = 0x32, - FF_WU_THS_L = 0x34, - FF_WU_THS_H = 0x35, - FF_WU_DURATION = 0x36, - DD_CFG = 0x38, - DD_SRC = 0x39, - DD_ACK = 0x3A, - DD_THSI_L = 0x3C, - DD_THSI_H = 0x3D, - DD_THSE_L = 0x3E, - DD_THSE_H = 0x3F, -}; - -enum lis3_who_am_i { - WAI_3DC = 0x33, /* 8 bits: LIS3DC, HP3DC */ - WAI_12B = 0x3A, /* 12 bits: LIS3LV02D[LQ]... */ - WAI_8B = 0x3B, /* 8 bits: LIS[23]02D[LQ]... */ - WAI_6B = 0x52, /* 6 bits: LIS331DLF - not supported */ -}; - -enum lis3lv02d_ctrl1_12b { - CTRL1_Xen = 0x01, - CTRL1_Yen = 0x02, - CTRL1_Zen = 0x04, - CTRL1_ST = 0x08, - CTRL1_DF0 = 0x10, - CTRL1_DF1 = 0x20, - CTRL1_PD0 = 0x40, - CTRL1_PD1 = 0x80, -}; - -/* Delta to ctrl1_12b version */ -enum lis3lv02d_ctrl1_8b { - CTRL1_STM = 0x08, - CTRL1_STP = 0x10, - CTRL1_FS = 0x20, - CTRL1_PD = 0x40, - CTRL1_DR = 0x80, -}; - -enum lis3lv02d_ctrl1_3dc { - CTRL1_ODR0 = 0x10, - CTRL1_ODR1 = 0x20, - CTRL1_ODR2 = 0x40, - CTRL1_ODR3 = 0x80, -}; - -enum lis3lv02d_ctrl2 { - CTRL2_DAS = 0x01, - CTRL2_SIM = 0x02, - CTRL2_DRDY = 0x04, - CTRL2_IEN = 0x08, - CTRL2_BOOT = 0x10, - CTRL2_BLE = 0x20, - CTRL2_BDU = 0x40, /* Block Data Update */ - CTRL2_FS = 0x80, /* Full Scale selection */ -}; - -enum lis3lv02d_ctrl4_3dc { - CTRL4_SIM = 0x01, - CTRL4_ST0 = 0x02, - CTRL4_ST1 = 0x04, - CTRL4_FS0 = 0x10, - CTRL4_FS1 = 0x20, -}; - -enum lis302d_ctrl2 { - HP_FF_WU2 = 0x08, - HP_FF_WU1 = 0x04, - CTRL2_BOOT_8B = 0x40, -}; - -enum lis3lv02d_ctrl3 { - CTRL3_CFS0 = 0x01, - CTRL3_CFS1 = 0x02, - CTRL3_FDS = 0x10, - CTRL3_HPFF = 0x20, - CTRL3_HPDD = 0x40, - CTRL3_ECK = 0x80, -}; - -enum lis3lv02d_status_reg { - STATUS_XDA = 0x01, - STATUS_YDA = 0x02, - STATUS_ZDA = 0x04, - STATUS_XYZDA = 0x08, - STATUS_XOR = 0x10, - STATUS_YOR = 0x20, - STATUS_ZOR = 0x40, - STATUS_XYZOR = 0x80, -}; - -enum lis3lv02d_ff_wu_cfg { - FF_WU_CFG_XLIE = 0x01, - FF_WU_CFG_XHIE = 0x02, - FF_WU_CFG_YLIE = 0x04, - FF_WU_CFG_YHIE = 0x08, - FF_WU_CFG_ZLIE = 0x10, - FF_WU_CFG_ZHIE = 0x20, - FF_WU_CFG_LIR = 0x40, - FF_WU_CFG_AOI = 0x80, -}; - -enum lis3lv02d_ff_wu_src { - FF_WU_SRC_XL = 0x01, - FF_WU_SRC_XH = 0x02, - FF_WU_SRC_YL = 0x04, - FF_WU_SRC_YH = 0x08, - FF_WU_SRC_ZL = 0x10, - FF_WU_SRC_ZH = 0x20, - FF_WU_SRC_IA = 0x40, -}; - -enum lis3lv02d_dd_cfg { - DD_CFG_XLIE = 0x01, - DD_CFG_XHIE = 0x02, - DD_CFG_YLIE = 0x04, - DD_CFG_YHIE = 0x08, - DD_CFG_ZLIE = 0x10, - DD_CFG_ZHIE = 0x20, - DD_CFG_LIR = 0x40, - DD_CFG_IEND = 0x80, -}; - -enum lis3lv02d_dd_src { - DD_SRC_XL = 0x01, - DD_SRC_XH = 0x02, - DD_SRC_YL = 0x04, - DD_SRC_YH = 0x08, - DD_SRC_ZL = 0x10, - DD_SRC_ZH = 0x20, - DD_SRC_IA = 0x40, -}; - -enum lis3lv02d_click_src_8b { - CLICK_SINGLE_X = 0x01, - CLICK_DOUBLE_X = 0x02, - CLICK_SINGLE_Y = 0x04, - CLICK_DOUBLE_Y = 0x08, - CLICK_SINGLE_Z = 0x10, - CLICK_DOUBLE_Z = 0x20, - CLICK_IA = 0x40, -}; - -enum lis3lv02d_reg_state { - LIS3_REG_OFF = 0x00, - LIS3_REG_ON = 0x01, -}; - -union axis_conversion { - struct { - int x, y, z; - }; - int as_array[3]; - -}; - -struct lis3lv02d { - void *bus_priv; /* used by the bus layer only */ - struct device *pm_dev; /* for pm_runtime purposes */ - int (*init) (struct lis3lv02d *lis3); - int (*write) (struct lis3lv02d *lis3, int reg, u8 val); - int (*read) (struct lis3lv02d *lis3, int reg, u8 *ret); - int (*blkread) (struct lis3lv02d *lis3, int reg, int len, u8 *ret); - int (*reg_ctrl) (struct lis3lv02d *lis3, bool state); - - int *odrs; /* Supported output data rates */ - u8 *regs; /* Regs to store / restore */ - int regs_size; - u8 *reg_cache; - bool regs_stored; - u8 odr_mask; /* ODR bit mask */ - u8 whoami; /* indicates measurement precision */ - s16 (*read_data) (struct lis3lv02d *lis3, int reg); - int mdps_max_val; - int pwron_delay; - int scale; /* - * relationship between 1 LBS and mG - * (1/1000th of earth gravity) - */ - - struct input_polled_dev *idev; /* input device */ - struct platform_device *pdev; /* platform device */ - struct regulator_bulk_data regulators[2]; - atomic_t count; /* interrupt count after last read */ - union axis_conversion ac; /* hw -> logical axis */ - int mapped_btns[3]; - - u32 irq; /* IRQ number */ - struct fasync_struct *async_queue; /* queue for the misc device */ - wait_queue_head_t misc_wait; /* Wait queue for the misc device */ - unsigned long misc_opened; /* bit0: whether the device is open */ - int data_ready_count[2]; - atomic_t wake_thread; - unsigned char irq_cfg; - - struct lis3lv02d_platform_data *pdata; /* for passing board config */ - struct mutex mutex; /* Serialize poll and selftest */ -}; - -int lis3lv02d_init_device(struct lis3lv02d *lis3); -int lis3lv02d_joystick_enable(void); -void lis3lv02d_joystick_disable(void); -void lis3lv02d_poweroff(struct lis3lv02d *lis3); -void lis3lv02d_poweron(struct lis3lv02d *lis3); -int lis3lv02d_remove_fs(struct lis3lv02d *lis3); - -extern struct lis3lv02d lis3_dev; diff --git a/drivers/hwmon/lis3lv02d_i2c.c b/drivers/hwmon/lis3lv02d_i2c.c deleted file mode 100644 index 8853afce85ce..000000000000 --- a/drivers/hwmon/lis3lv02d_i2c.c +++ /dev/null @@ -1,279 +0,0 @@ -/* - * drivers/hwmon/lis3lv02d_i2c.c - * - * Implements I2C interface for lis3lv02d (STMicroelectronics) accelerometer. - * Driver is based on corresponding SPI driver written by Daniel Mack - * (lis3lv02d_spi.c (C) 2009 Daniel Mack <daniel@caiaq.de> ). - * - * Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). - * - * Contact: Samu Onkalo <samu.p.onkalo@nokia.com> - * - * 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 published by the Free Software Foundation. - * - * 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., 51 Franklin St, Fifth Floor, Boston, MA - * 02110-1301 USA - */ - -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/err.h> -#include <linux/i2c.h> -#include <linux/pm_runtime.h> -#include <linux/delay.h> -#include "lis3lv02d.h" - -#define DRV_NAME "lis3lv02d_i2c" - -static const char reg_vdd[] = "Vdd"; -static const char reg_vdd_io[] = "Vdd_IO"; - -static int lis3_reg_ctrl(struct lis3lv02d *lis3, bool state) -{ - int ret; - if (state == LIS3_REG_OFF) { - ret = regulator_bulk_disable(ARRAY_SIZE(lis3->regulators), - lis3->regulators); - } else { - ret = regulator_bulk_enable(ARRAY_SIZE(lis3->regulators), - lis3->regulators); - /* Chip needs time to wakeup. Not mentioned in datasheet */ - usleep_range(10000, 20000); - } - return ret; -} - -static inline s32 lis3_i2c_write(struct lis3lv02d *lis3, int reg, u8 value) -{ - struct i2c_client *c = lis3->bus_priv; - return i2c_smbus_write_byte_data(c, reg, value); -} - -static inline s32 lis3_i2c_read(struct lis3lv02d *lis3, int reg, u8 *v) -{ - struct i2c_client *c = lis3->bus_priv; - *v = i2c_smbus_read_byte_data(c, reg); - return 0; -} - -static inline s32 lis3_i2c_blockread(struct lis3lv02d *lis3, int reg, int len, - u8 *v) -{ - struct i2c_client *c = lis3->bus_priv; - reg |= (1 << 7); /* 7th bit enables address auto incrementation */ - return i2c_smbus_read_i2c_block_data(c, reg, len, v); -} - -static int lis3_i2c_init(struct lis3lv02d *lis3) -{ - u8 reg; - int ret; - - if (lis3->reg_ctrl) - lis3_reg_ctrl(lis3, LIS3_REG_ON); - - lis3->read(lis3, WHO_AM_I, ®); - if (reg != lis3->whoami) - printk(KERN_ERR "lis3: power on failure\n"); - - /* power up the device */ - ret = lis3->read(lis3, CTRL_REG1, ®); - if (ret < 0) - return ret; - - reg |= CTRL1_PD0 | CTRL1_Xen | CTRL1_Yen | CTRL1_Zen; - return lis3->write(lis3, CTRL_REG1, reg); -} - -/* Default axis mapping but it can be overwritten by platform data */ -static union axis_conversion lis3lv02d_axis_map = - { .as_array = { LIS3_DEV_X, LIS3_DEV_Y, LIS3_DEV_Z } }; - -static int __devinit lis3lv02d_i2c_probe(struct i2c_client *client, - const struct i2c_device_id *id) -{ - int ret = 0; - struct lis3lv02d_platform_data *pdata = client->dev.platform_data; - - if (pdata) { - /* Regulator control is optional */ - if (pdata->driver_features & LIS3_USE_REGULATOR_CTRL) - lis3_dev.reg_ctrl = lis3_reg_ctrl; - - if ((pdata->driver_features & LIS3_USE_BLOCK_READ) && - (i2c_check_functionality(client->adapter, - I2C_FUNC_SMBUS_I2C_BLOCK))) - lis3_dev.blkread = lis3_i2c_blockread; - - if (pdata->axis_x) - lis3lv02d_axis_map.x = pdata->axis_x; - - if (pdata->axis_y) - lis3lv02d_axis_map.y = pdata->axis_y; - - if (pdata->axis_z) - lis3lv02d_axis_map.z = pdata->axis_z; - - if (pdata->setup_resources) - ret = pdata->setup_resources(); - - if (ret) - goto fail; - } - - if (lis3_dev.reg_ctrl) { - lis3_dev.regulators[0].supply = reg_vdd; - lis3_dev.regulators[1].supply = reg_vdd_io; - ret = regulator_bulk_get(&client->dev, - ARRAY_SIZE(lis3_dev.regulators), - lis3_dev.regulators); - if (ret < 0) - goto fail; - } - - lis3_dev.pdata = pdata; - lis3_dev.bus_priv = client; - lis3_dev.init = lis3_i2c_init; - lis3_dev.read = lis3_i2c_read; - lis3_dev.write = lis3_i2c_write; - lis3_dev.irq = client->irq; - lis3_dev.ac = lis3lv02d_axis_map; - lis3_dev.pm_dev = &client->dev; - - i2c_set_clientdata(client, &lis3_dev); - - /* Provide power over the init call */ - if (lis3_dev.reg_ctrl) - lis3_reg_ctrl(&lis3_dev, LIS3_REG_ON); - - ret = lis3lv02d_init_device(&lis3_dev); - - if (lis3_dev.reg_ctrl) - lis3_reg_ctrl(&lis3_dev, LIS3_REG_OFF); - - if (ret == 0) - return 0; -fail: - if (pdata && pdata->release_resources) - pdata->release_resources(); - return ret; -} - -static int __devexit lis3lv02d_i2c_remove(struct i2c_client *client) -{ - struct lis3lv02d *lis3 = i2c_get_clientdata(client); - struct lis3lv02d_platform_data *pdata = client->dev.platform_data; - - if (pdata && pdata->release_resources) - pdata->release_resources(); - - lis3lv02d_joystick_disable(); - lis3lv02d_remove_fs(&lis3_dev); - - if (lis3_dev.reg_ctrl) - regulator_bulk_free(ARRAY_SIZE(lis3->regulators), - lis3_dev.regulators); - return 0; -} - -#ifdef CONFIG_PM_SLEEP -static int lis3lv02d_i2c_suspend(struct device *dev) -{ - struct i2c_client *client = container_of(dev, struct i2c_client, dev); - struct lis3lv02d *lis3 = i2c_get_clientdata(client); - - if (!lis3->pdata || !lis3->pdata->wakeup_flags) - lis3lv02d_poweroff(lis3); - return 0; -} - -static int lis3lv02d_i2c_resume(struct device *dev) -{ - struct i2c_client *client = container_of(dev, struct i2c_client, dev); - struct lis3lv02d *lis3 = i2c_get_clientdata(client); - - /* - * pm_runtime documentation says that devices should always - * be powered on at resume. Pm_runtime turns them off after system - * wide resume is complete. - */ - if (!lis3->pdata || !lis3->pdata->wakeup_flags || - pm_runtime_suspended(dev)) - lis3lv02d_poweron(lis3); - - return 0; -} -#endif /* CONFIG_PM_SLEEP */ - -#ifdef CONFIG_PM_RUNTIME -static int lis3_i2c_runtime_suspend(struct device *dev) -{ - struct i2c_client *client = container_of(dev, struct i2c_client, dev); - struct lis3lv02d *lis3 = i2c_get_clientdata(client); - - lis3lv02d_poweroff(lis3); - return 0; -} - -static int lis3_i2c_runtime_resume(struct device *dev) -{ - struct i2c_client *client = container_of(dev, struct i2c_client, dev); - struct lis3lv02d *lis3 = i2c_get_clientdata(client); - - lis3lv02d_poweron(lis3); - return 0; -} -#endif /* CONFIG_PM_RUNTIME */ - -static const struct i2c_device_id lis3lv02d_id[] = { - {"lis3lv02d", 0 }, - {} -}; - -MODULE_DEVICE_TABLE(i2c, lis3lv02d_id); - -static const struct dev_pm_ops lis3_pm_ops = { - SET_SYSTEM_SLEEP_PM_OPS(lis3lv02d_i2c_suspend, - lis3lv02d_i2c_resume) - SET_RUNTIME_PM_OPS(lis3_i2c_runtime_suspend, - lis3_i2c_runtime_resume, - NULL) -}; - -static struct i2c_driver lis3lv02d_i2c_driver = { - .driver = { - .name = DRV_NAME, - .owner = THIS_MODULE, - .pm = &lis3_pm_ops, - }, - .probe = lis3lv02d_i2c_probe, - .remove = __devexit_p(lis3lv02d_i2c_remove), - .id_table = lis3lv02d_id, -}; - -static int __init lis3lv02d_init(void) -{ - return i2c_add_driver(&lis3lv02d_i2c_driver); -} - -static void __exit lis3lv02d_exit(void) -{ - i2c_del_driver(&lis3lv02d_i2c_driver); -} - -MODULE_AUTHOR("Nokia Corporation"); -MODULE_DESCRIPTION("lis3lv02d I2C interface"); -MODULE_LICENSE("GPL"); - -module_init(lis3lv02d_init); -module_exit(lis3lv02d_exit); diff --git a/drivers/hwmon/lis3lv02d_spi.c b/drivers/hwmon/lis3lv02d_spi.c deleted file mode 100644 index c1f8a8fbf694..000000000000 --- a/drivers/hwmon/lis3lv02d_spi.c +++ /dev/null @@ -1,145 +0,0 @@ -/* - * lis3lv02d_spi - SPI glue layer for lis3lv02d - * - * Copyright (c) 2009 Daniel Mack <daniel@caiaq.de> - * - * 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 - * publishhed by the Free Software Foundation. - */ - -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/err.h> -#include <linux/input.h> -#include <linux/interrupt.h> -#include <linux/workqueue.h> -#include <linux/spi/spi.h> -#include <linux/pm.h> - -#include "lis3lv02d.h" - -#define DRV_NAME "lis3lv02d_spi" -#define LIS3_SPI_READ 0x80 - -static int lis3_spi_read(struct lis3lv02d *lis3, int reg, u8 *v) -{ - struct spi_device *spi = lis3->bus_priv; - int ret = spi_w8r8(spi, reg | LIS3_SPI_READ); - if (ret < 0) - return -EINVAL; - - *v = (u8) ret; - return 0; -} - -static int lis3_spi_write(struct lis3lv02d *lis3, int reg, u8 val) -{ - u8 tmp[2] = { reg, val }; - struct spi_device *spi = lis3->bus_priv; - return spi_write(spi, tmp, sizeof(tmp)); -} - -static int lis3_spi_init(struct lis3lv02d *lis3) -{ - u8 reg; - int ret; - - /* power up the device */ - ret = lis3->read(lis3, CTRL_REG1, ®); - if (ret < 0) - return ret; - - reg |= CTRL1_PD0 | CTRL1_Xen | CTRL1_Yen | CTRL1_Zen; - return lis3->write(lis3, CTRL_REG1, reg); -} - -static union axis_conversion lis3lv02d_axis_normal = - { .as_array = { 1, 2, 3 } }; - -static int __devinit lis302dl_spi_probe(struct spi_device *spi) -{ - int ret; - - spi->bits_per_word = 8; - spi->mode = SPI_MODE_0; - ret = spi_setup(spi); - if (ret < 0) - return ret; - - lis3_dev.bus_priv = spi; - lis3_dev.init = lis3_spi_init; - lis3_dev.read = lis3_spi_read; - lis3_dev.write = lis3_spi_write; - lis3_dev.irq = spi->irq; - lis3_dev.ac = lis3lv02d_axis_normal; - lis3_dev.pdata = spi->dev.platform_data; - spi_set_drvdata(spi, &lis3_dev); - - return lis3lv02d_init_device(&lis3_dev); -} - -static int __devexit lis302dl_spi_remove(struct spi_device *spi) -{ - struct lis3lv02d *lis3 = spi_get_drvdata(spi); - lis3lv02d_joystick_disable(); - lis3lv02d_poweroff(lis3); - - return lis3lv02d_remove_fs(&lis3_dev); -} - -#ifdef CONFIG_PM_SLEEP -static int lis3lv02d_spi_suspend(struct device *dev) -{ - struct spi_device *spi = to_spi_device(dev); - struct lis3lv02d *lis3 = spi_get_drvdata(spi); - - if (!lis3->pdata || !lis3->pdata->wakeup_flags) - lis3lv02d_poweroff(&lis3_dev); - - return 0; -} - -static int lis3lv02d_spi_resume(struct device *dev) -{ - struct spi_device *spi = to_spi_device(dev); - struct lis3lv02d *lis3 = spi_get_drvdata(spi); - - if (!lis3->pdata || !lis3->pdata->wakeup_flags) - lis3lv02d_poweron(lis3); - - return 0; -} -#endif - -static SIMPLE_DEV_PM_OPS(lis3lv02d_spi_pm, lis3lv02d_spi_suspend, - lis3lv02d_spi_resume); - -static struct spi_driver lis302dl_spi_driver = { - .driver = { - .name = DRV_NAME, - .owner = THIS_MODULE, - .pm = &lis3lv02d_spi_pm, - }, - .probe = lis302dl_spi_probe, - .remove = __devexit_p(lis302dl_spi_remove), -}; - -static int __init lis302dl_init(void) -{ - return spi_register_driver(&lis302dl_spi_driver); -} - -static void __exit lis302dl_exit(void) -{ - spi_unregister_driver(&lis302dl_spi_driver); -} - -module_init(lis302dl_init); -module_exit(lis302dl_exit); - -MODULE_AUTHOR("Daniel Mack <daniel@caiaq.de>"); -MODULE_DESCRIPTION("lis3lv02d SPI glue layer"); -MODULE_LICENSE("GPL"); -MODULE_ALIAS("spi:" DRV_NAME); diff --git a/drivers/hwmon/lm75.c b/drivers/hwmon/lm75.c index f36eb80d227f..ef902d5d06ab 100644 --- a/drivers/hwmon/lm75.c +++ b/drivers/hwmon/lm75.c @@ -232,13 +232,16 @@ static const struct i2c_device_id lm75_ids[] = { }; MODULE_DEVICE_TABLE(i2c, lm75_ids); +#define LM75A_ID 0xA1 + /* Return 0 if detection is successful, -ENODEV otherwise */ static int lm75_detect(struct i2c_client *new_client, struct i2c_board_info *info) { struct i2c_adapter *adapter = new_client->adapter; int i; - int cur, conf, hyst, os; + int conf, hyst, os; + bool is_lm75a = 0; if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA)) @@ -250,37 +253,58 @@ static int lm75_detect(struct i2c_client *new_client, addresses 0x04-0x07 returning the last read value. The cycling+unused addresses combination is not tested, since it would significantly slow the detection down and would - hardly add any value. */ + hardly add any value. - /* Unused addresses */ - cur = i2c_smbus_read_word_data(new_client, 0); - conf = i2c_smbus_read_byte_data(new_client, 1); - hyst = i2c_smbus_read_word_data(new_client, 2); - if (i2c_smbus_read_word_data(new_client, 4) != hyst - || i2c_smbus_read_word_data(new_client, 5) != hyst - || i2c_smbus_read_word_data(new_client, 6) != hyst - || i2c_smbus_read_word_data(new_client, 7) != hyst) - return -ENODEV; - os = i2c_smbus_read_word_data(new_client, 3); - if (i2c_smbus_read_word_data(new_client, 4) != os - || i2c_smbus_read_word_data(new_client, 5) != os - || i2c_smbus_read_word_data(new_client, 6) != os - || i2c_smbus_read_word_data(new_client, 7) != os) - return -ENODEV; + The National Semiconductor LM75A is different than earlier + LM75s. It has an ID byte of 0xaX (where X is the chip + revision, with 1 being the only revision in existence) in + register 7, and unused registers return 0xff rather than the + last read value. */ /* Unused bits */ + conf = i2c_smbus_read_byte_data(new_client, 1); if (conf & 0xe0) return -ENODEV; + /* First check for LM75A */ + if (i2c_smbus_read_byte_data(new_client, 7) == LM75A_ID) { + /* LM75A returns 0xff on unused registers so + just to be sure we check for that too. */ + if (i2c_smbus_read_byte_data(new_client, 4) != 0xff + || i2c_smbus_read_byte_data(new_client, 5) != 0xff + || i2c_smbus_read_byte_data(new_client, 6) != 0xff) + return -ENODEV; + is_lm75a = 1; + hyst = i2c_smbus_read_byte_data(new_client, 2); + os = i2c_smbus_read_byte_data(new_client, 3); + } else { /* Traditional style LM75 detection */ + /* Unused addresses */ + hyst = i2c_smbus_read_byte_data(new_client, 2); + if (i2c_smbus_read_byte_data(new_client, 4) != hyst + || i2c_smbus_read_byte_data(new_client, 5) != hyst + || i2c_smbus_read_byte_data(new_client, 6) != hyst + || i2c_smbus_read_byte_data(new_client, 7) != hyst) + return -ENODEV; + os = i2c_smbus_read_byte_data(new_client, 3); + if (i2c_smbus_read_byte_data(new_client, 4) != os + || i2c_smbus_read_byte_data(new_client, 5) != os + || i2c_smbus_read_byte_data(new_client, 6) != os + || i2c_smbus_read_byte_data(new_client, 7) != os) + return -ENODEV; + } + /* Addresses cycling */ - for (i = 8; i < 0xff; i += 8) { + for (i = 8; i <= 248; i += 40) { if (i2c_smbus_read_byte_data(new_client, i + 1) != conf - || i2c_smbus_read_word_data(new_client, i + 2) != hyst - || i2c_smbus_read_word_data(new_client, i + 3) != os) + || i2c_smbus_read_byte_data(new_client, i + 2) != hyst + || i2c_smbus_read_byte_data(new_client, i + 3) != os) + return -ENODEV; + if (is_lm75a && i2c_smbus_read_byte_data(new_client, i + 7) + != LM75A_ID) return -ENODEV; } - strlcpy(info->type, "lm75", I2C_NAME_SIZE); + strlcpy(info->type, is_lm75a ? "lm75a" : "lm75", I2C_NAME_SIZE); return 0; } diff --git a/drivers/hwmon/sch5627.c b/drivers/hwmon/sch5627.c new file mode 100644 index 000000000000..9a51dcca9b0d --- /dev/null +++ b/drivers/hwmon/sch5627.c @@ -0,0 +1,858 @@ +/*************************************************************************** + * Copyright (C) 2010-2011 Hans de Goede <hdegoede@redhat.com> * + * * + * 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., * + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * + ***************************************************************************/ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include <linux/module.h> +#include <linux/init.h> +#include <linux/slab.h> +#include <linux/jiffies.h> +#include <linux/platform_device.h> +#include <linux/hwmon.h> +#include <linux/hwmon-sysfs.h> +#include <linux/err.h> +#include <linux/mutex.h> +#include <linux/io.h> +#include <linux/acpi.h> +#include <linux/delay.h> + +#define DRVNAME "sch5627" +#define DEVNAME DRVNAME /* We only support one model */ + +#define SIO_SCH5627_EM_LD 0x0C /* Embedded Microcontroller LD */ +#define SIO_UNLOCK_KEY 0x55 /* Key to enable Super-I/O */ +#define SIO_LOCK_KEY 0xAA /* Key to disable Super-I/O */ + +#define SIO_REG_LDSEL 0x07 /* Logical device select */ +#define SIO_REG_DEVID 0x20 /* Device ID */ +#define SIO_REG_ENABLE 0x30 /* Logical device enable */ +#define SIO_REG_ADDR 0x66 /* Logical device address (2 bytes) */ + +#define SIO_SCH5627_ID 0xC6 /* Chipset ID */ + +#define REGION_LENGTH 9 + +#define SCH5627_HWMON_ID 0xa5 +#define SCH5627_COMPANY_ID 0x5c +#define SCH5627_PRIMARY_ID 0xa0 + +#define SCH5627_REG_BUILD_CODE 0x39 +#define SCH5627_REG_BUILD_ID 0x3a +#define SCH5627_REG_HWMON_ID 0x3c +#define SCH5627_REG_HWMON_REV 0x3d +#define SCH5627_REG_COMPANY_ID 0x3e +#define SCH5627_REG_PRIMARY_ID 0x3f +#define SCH5627_REG_CTRL 0x40 + +#define SCH5627_NO_TEMPS 8 +#define SCH5627_NO_FANS 4 +#define SCH5627_NO_IN 5 + +static const u16 SCH5627_REG_TEMP_MSB[SCH5627_NO_TEMPS] = { + 0x2B, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x180, 0x181 }; +static const u16 SCH5627_REG_TEMP_LSN[SCH5627_NO_TEMPS] = { + 0xE2, 0xE1, 0xE1, 0xE5, 0xE5, 0xE6, 0x182, 0x182 }; +static const u16 SCH5627_REG_TEMP_HIGH_NIBBLE[SCH5627_NO_TEMPS] = { + 0, 0, 1, 1, 0, 0, 0, 1 }; +static const u16 SCH5627_REG_TEMP_HIGH[SCH5627_NO_TEMPS] = { + 0x61, 0x57, 0x59, 0x5B, 0x5D, 0x5F, 0x184, 0x186 }; +static const u16 SCH5627_REG_TEMP_ABS[SCH5627_NO_TEMPS] = { + 0x9B, 0x96, 0x97, 0x98, 0x99, 0x9A, 0x1A8, 0x1A9 }; + +static const u16 SCH5627_REG_FAN[SCH5627_NO_FANS] = { + 0x2C, 0x2E, 0x30, 0x32 }; +static const u16 SCH5627_REG_FAN_MIN[SCH5627_NO_FANS] = { + 0x62, 0x64, 0x66, 0x68 }; + +static const u16 SCH5627_REG_IN_MSB[SCH5627_NO_IN] = { + 0x22, 0x23, 0x24, 0x25, 0x189 }; +static const u16 SCH5627_REG_IN_LSN[SCH5627_NO_IN] = { + 0xE4, 0xE4, 0xE3, 0xE3, 0x18A }; +static const u16 SCH5627_REG_IN_HIGH_NIBBLE[SCH5627_NO_IN] = { + 1, 0, 1, 0, 1 }; +static const u16 SCH5627_REG_IN_FACTOR[SCH5627_NO_IN] = { + 10745, 3660, 9765, 10745, 3660 }; +static const char * const SCH5627_IN_LABELS[SCH5627_NO_IN] = { + "VCC", "VTT", "VBAT", "VTR", "V_IN" }; + +struct sch5627_data { + unsigned short addr; + struct device *hwmon_dev; + u8 temp_max[SCH5627_NO_TEMPS]; + u8 temp_crit[SCH5627_NO_TEMPS]; + u16 fan_min[SCH5627_NO_FANS]; + + struct mutex update_lock; + char valid; /* !=0 if following fields are valid */ + unsigned long last_updated; /* In jiffies */ + u16 temp[SCH5627_NO_TEMPS]; + u16 fan[SCH5627_NO_FANS]; + u16 in[SCH5627_NO_IN]; +}; + +static struct platform_device *sch5627_pdev; + +/* Super I/O functions */ +static inline int superio_inb(int base, int reg) +{ + outb(reg, base); + return inb(base + 1); +} + +static inline int superio_enter(int base) +{ + /* Don't step on other drivers' I/O space by accident */ + if (!request_muxed_region(base, 2, DRVNAME)) { + pr_err("I/O address 0x%04x already in use\n", base); + return -EBUSY; + } + + outb(SIO_UNLOCK_KEY, base); + + return 0; +} + +static inline void superio_select(int base, int ld) +{ + outb(SIO_REG_LDSEL, base); + outb(ld, base + 1); +} + +static inline void superio_exit(int base) +{ + outb(SIO_LOCK_KEY, base); + release_region(base, 2); +} + +static int sch5627_read_virtual_reg(struct sch5627_data *data, u16 reg) +{ + u8 val; + int i; + /* + * According to SMSC for the commands we use the maximum time for + * the EM to respond is 15 ms, but testing shows in practice it + * responds within 15-32 reads, so we first busy poll, and if + * that fails sleep a bit and try again until we are way past + * the 15 ms maximum response time. + */ + const int max_busy_polls = 64; + const int max_lazy_polls = 32; + + /* (Optional) Write-Clear the EC to Host Mailbox Register */ + val = inb(data->addr + 1); + outb(val, data->addr + 1); + + /* Set Mailbox Address Pointer to first location in Region 1 */ + outb(0x00, data->addr + 2); + outb(0x80, data->addr + 3); + + /* Write Request Packet Header */ + outb(0x02, data->addr + 4); /* Access Type: VREG read */ + outb(0x01, data->addr + 5); /* # of Entries: 1 Byte (8-bit) */ + outb(0x04, data->addr + 2); /* Mailbox AP to first data entry loc. */ + + /* Write Address field */ + outb(reg & 0xff, data->addr + 6); + outb(reg >> 8, data->addr + 7); + + /* Execute the Random Access Command */ + outb(0x01, data->addr); /* Write 01h to the Host-to-EC register */ + + /* EM Interface Polling "Algorithm" */ + for (i = 0; i < max_busy_polls + max_lazy_polls; i++) { + if (i >= max_busy_polls) + msleep(1); + /* Read Interrupt source Register */ + val = inb(data->addr + 8); + /* Write Clear the interrupt source bits */ + if (val) + outb(val, data->addr + 8); + /* Command Completed ? */ + if (val & 0x01) + break; + } + if (i == max_busy_polls + max_lazy_polls) { + pr_err("Max retries exceeded reading virtual " + "register 0x%04hx (%d)\n", reg, 1); + return -EIO; + } + + /* + * According to SMSC we may need to retry this, but sofar I've always + * seen this succeed in 1 try. + */ + for (i = 0; i < max_busy_polls; i++) { + /* Read EC-to-Host Register */ + val = inb(data->addr + 1); + /* Command Completed ? */ + if (val == 0x01) + break; + + if (i == 0) + pr_warn("EC reports: 0x%02x reading virtual register " + "0x%04hx\n", (unsigned int)val, reg); + } + if (i == max_busy_polls) { + pr_err("Max retries exceeded reading virtual " + "register 0x%04hx (%d)\n", reg, 2); + return -EIO; + } + + /* + * According to the SMSC app note we should now do: + * + * Set Mailbox Address Pointer to first location in Region 1 * + * outb(0x00, data->addr + 2); + * outb(0x80, data->addr + 3); + * + * But if we do that things don't work, so let's not. + */ + + /* Read Data from Mailbox */ + return inb(data->addr + 4); +} + +static int sch5627_read_virtual_reg16(struct sch5627_data *data, u16 reg) +{ + int lsb, msb; + + /* Read LSB first, this will cause the matching MSB to be latched */ + lsb = sch5627_read_virtual_reg(data, reg); + if (lsb < 0) + return lsb; + + msb = sch5627_read_virtual_reg(data, reg + 1); + if (msb < 0) + return msb; + + return lsb | (msb << 8); +} + +static int sch5627_read_virtual_reg12(struct sch5627_data *data, u16 msb_reg, + u16 lsn_reg, int high_nibble) +{ + int msb, lsn; + + /* Read MSB first, this will cause the matching LSN to be latched */ + msb = sch5627_read_virtual_reg(data, msb_reg); + if (msb < 0) + return msb; + + lsn = sch5627_read_virtual_reg(data, lsn_reg); + if (lsn < 0) + return lsn; + + if (high_nibble) + return (msb << 4) | (lsn >> 4); + else + return (msb << 4) | (lsn & 0x0f); +} + +static struct sch5627_data *sch5627_update_device(struct device *dev) +{ + struct sch5627_data *data = dev_get_drvdata(dev); + struct sch5627_data *ret = data; + int i, val; + + mutex_lock(&data->update_lock); + + /* Cache the values for 1 second */ + if (time_after(jiffies, data->last_updated + HZ) || !data->valid) { + for (i = 0; i < SCH5627_NO_TEMPS; i++) { + val = sch5627_read_virtual_reg12(data, + SCH5627_REG_TEMP_MSB[i], + SCH5627_REG_TEMP_LSN[i], + SCH5627_REG_TEMP_HIGH_NIBBLE[i]); + if (unlikely(val < 0)) { + ret = ERR_PTR(val); + goto abort; + } + data->temp[i] = val; + } + + for (i = 0; i < SCH5627_NO_FANS; i++) { + val = sch5627_read_virtual_reg16(data, + SCH5627_REG_FAN[i]); + if (unlikely(val < 0)) { + ret = ERR_PTR(val); + goto abort; + } + data->fan[i] = val; + } + + for (i = 0; i < SCH5627_NO_IN; i++) { + val = sch5627_read_virtual_reg12(data, + SCH5627_REG_IN_MSB[i], + SCH5627_REG_IN_LSN[i], + SCH5627_REG_IN_HIGH_NIBBLE[i]); + if (unlikely(val < 0)) { + ret = ERR_PTR(val); + goto abort; + } + data->in[i] = val; + } + + data->last_updated = jiffies; + data->valid = 1; + } +abort: + mutex_unlock(&data->update_lock); + return ret; +} + +static int __devinit sch5627_read_limits(struct sch5627_data *data) +{ + int i, val; + + for (i = 0; i < SCH5627_NO_TEMPS; i++) { + /* + * Note what SMSC calls ABS, is what lm_sensors calls max + * (aka high), and HIGH is what lm_sensors calls crit. + */ + val = sch5627_read_virtual_reg(data, SCH5627_REG_TEMP_ABS[i]); + if (val < 0) + return val; + data->temp_max[i] = val; + + val = sch5627_read_virtual_reg(data, SCH5627_REG_TEMP_HIGH[i]); + if (val < 0) + return val; + data->temp_crit[i] = val; + } + for (i = 0; i < SCH5627_NO_FANS; i++) { + val = sch5627_read_virtual_reg16(data, SCH5627_REG_FAN_MIN[i]); + if (val < 0) + return val; + data->fan_min[i] = val; + } + + return 0; +} + +static int reg_to_temp(u16 reg) +{ + return (reg * 625) / 10 - 64000; +} + +static int reg_to_temp_limit(u8 reg) +{ + return (reg - 64) * 1000; +} + +static int reg_to_rpm(u16 reg) +{ + if (reg == 0) + return -EIO; + if (reg == 0xffff) + return 0; + + return 5400540 / reg; +} + +static ssize_t show_name(struct device *dev, struct device_attribute *devattr, + char *buf) +{ + return snprintf(buf, PAGE_SIZE, "%s\n", DEVNAME); +} + +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 sch5627_data *data = sch5627_update_device(dev); + int val; + + if (IS_ERR(data)) + return PTR_ERR(data); + + val = reg_to_temp(data->temp[attr->index]); + return snprintf(buf, PAGE_SIZE, "%d\n", val); +} + +static ssize_t show_temp_fault(struct device *dev, struct device_attribute + *devattr, char *buf) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + struct sch5627_data *data = sch5627_update_device(dev); + + if (IS_ERR(data)) + return PTR_ERR(data); + + return snprintf(buf, PAGE_SIZE, "%d\n", data->temp[attr->index] == 0); +} + +static ssize_t show_temp_max(struct device *dev, struct device_attribute + *devattr, char *buf) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + struct sch5627_data *data = dev_get_drvdata(dev); + int val; + + val = reg_to_temp_limit(data->temp_max[attr->index]); + return snprintf(buf, PAGE_SIZE, "%d\n", val); +} + +static ssize_t show_temp_crit(struct device *dev, struct device_attribute + *devattr, char *buf) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + struct sch5627_data *data = dev_get_drvdata(dev); + int val; + + val = reg_to_temp_limit(data->temp_crit[attr->index]); + return snprintf(buf, PAGE_SIZE, "%d\n", val); +} + +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 sch5627_data *data = sch5627_update_device(dev); + int val; + + if (IS_ERR(data)) + return PTR_ERR(data); + + val = reg_to_rpm(data->fan[attr->index]); + if (val < 0) + return val; + + return snprintf(buf, PAGE_SIZE, "%d\n", val); +} + +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 sch5627_data *data = sch5627_update_device(dev); + + if (IS_ERR(data)) + return PTR_ERR(data); + + return snprintf(buf, PAGE_SIZE, "%d\n", + data->fan[attr->index] == 0xffff); +} + +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 sch5627_data *data = dev_get_drvdata(dev); + int val = reg_to_rpm(data->fan_min[attr->index]); + if (val < 0) + return val; + + return snprintf(buf, PAGE_SIZE, "%d\n", val); +} + +static ssize_t show_in(struct device *dev, struct device_attribute + *devattr, char *buf) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + struct sch5627_data *data = sch5627_update_device(dev); + int val; + + if (IS_ERR(data)) + return PTR_ERR(data); + + val = DIV_ROUND_CLOSEST( + data->in[attr->index] * SCH5627_REG_IN_FACTOR[attr->index], + 10000); + return snprintf(buf, PAGE_SIZE, "%d\n", val); +} + +static ssize_t show_in_label(struct device *dev, struct device_attribute + *devattr, char *buf) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + + return snprintf(buf, PAGE_SIZE, "%s\n", + SCH5627_IN_LABELS[attr->index]); +} + +static DEVICE_ATTR(name, S_IRUGO, show_name, NULL); +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(temp4_input, S_IRUGO, show_temp, NULL, 3); +static SENSOR_DEVICE_ATTR(temp5_input, S_IRUGO, show_temp, NULL, 4); +static SENSOR_DEVICE_ATTR(temp6_input, S_IRUGO, show_temp, NULL, 5); +static SENSOR_DEVICE_ATTR(temp7_input, S_IRUGO, show_temp, NULL, 6); +static SENSOR_DEVICE_ATTR(temp8_input, S_IRUGO, show_temp, NULL, 7); +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 SENSOR_DEVICE_ATTR(temp7_fault, S_IRUGO, show_temp_fault, NULL, 6); +static SENSOR_DEVICE_ATTR(temp8_fault, S_IRUGO, show_temp_fault, NULL, 7); +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(temp7_max, S_IRUGO, show_temp_max, NULL, 6); +static SENSOR_DEVICE_ATTR(temp8_max, S_IRUGO, show_temp_max, NULL, 7); +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(temp7_crit, S_IRUGO, show_temp_crit, NULL, 6); +static SENSOR_DEVICE_ATTR(temp8_crit, S_IRUGO, show_temp_crit, NULL, 7); + +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(fan3_input, S_IRUGO, show_fan, NULL, 2); +static SENSOR_DEVICE_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 3); +static SENSOR_DEVICE_ATTR(fan1_fault, S_IRUGO, show_fan_fault, NULL, 0); +static SENSOR_DEVICE_ATTR(fan2_fault, S_IRUGO, show_fan_fault, NULL, 1); +static SENSOR_DEVICE_ATTR(fan3_fault, S_IRUGO, show_fan_fault, NULL, 2); +static SENSOR_DEVICE_ATTR(fan4_fault, S_IRUGO, show_fan_fault, NULL, 3); +static SENSOR_DEVICE_ATTR(fan1_min, S_IRUGO, show_fan_min, NULL, 0); +static SENSOR_DEVICE_ATTR(fan2_min, S_IRUGO, show_fan_min, NULL, 1); +static SENSOR_DEVICE_ATTR(fan3_min, S_IRUGO, show_fan_min, NULL, 2); +static SENSOR_DEVICE_ATTR(fan4_min, S_IRUGO, show_fan_min, NULL, 3); + +static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, show_in, NULL, 0); +static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_in, NULL, 1); +static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_in, NULL, 2); +static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_in, NULL, 3); +static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, show_in, NULL, 4); +static SENSOR_DEVICE_ATTR(in0_label, S_IRUGO, show_in_label, NULL, 0); +static SENSOR_DEVICE_ATTR(in1_label, S_IRUGO, show_in_label, NULL, 1); +static SENSOR_DEVICE_ATTR(in2_label, S_IRUGO, show_in_label, NULL, 2); +static SENSOR_DEVICE_ATTR(in3_label, S_IRUGO, show_in_label, NULL, 3); + +static struct attribute *sch5627_attributes[] = { + &dev_attr_name.attr, + + &sensor_dev_attr_temp1_input.dev_attr.attr, + &sensor_dev_attr_temp2_input.dev_attr.attr, + &sensor_dev_attr_temp3_input.dev_attr.attr, + &sensor_dev_attr_temp4_input.dev_attr.attr, + &sensor_dev_attr_temp5_input.dev_attr.attr, + &sensor_dev_attr_temp6_input.dev_attr.attr, + &sensor_dev_attr_temp7_input.dev_attr.attr, + &sensor_dev_attr_temp8_input.dev_attr.attr, + &sensor_dev_attr_temp1_fault.dev_attr.attr, + &sensor_dev_attr_temp2_fault.dev_attr.attr, + &sensor_dev_attr_temp3_fault.dev_attr.attr, + &sensor_dev_attr_temp4_fault.dev_attr.attr, + &sensor_dev_attr_temp5_fault.dev_attr.attr, + &sensor_dev_attr_temp6_fault.dev_attr.attr, + &sensor_dev_attr_temp7_fault.dev_attr.attr, + &sensor_dev_attr_temp8_fault.dev_attr.attr, + &sensor_dev_attr_temp1_max.dev_attr.attr, + &sensor_dev_attr_temp2_max.dev_attr.attr, + &sensor_dev_attr_temp3_max.dev_attr.attr, + &sensor_dev_attr_temp4_max.dev_attr.attr, + &sensor_dev_attr_temp5_max.dev_attr.attr, + &sensor_dev_attr_temp6_max.dev_attr.attr, + &sensor_dev_attr_temp7_max.dev_attr.attr, + &sensor_dev_attr_temp8_max.dev_attr.attr, + &sensor_dev_attr_temp1_crit.dev_attr.attr, + &sensor_dev_attr_temp2_crit.dev_attr.attr, + &sensor_dev_attr_temp3_crit.dev_attr.attr, + &sensor_dev_attr_temp4_crit.dev_attr.attr, + &sensor_dev_attr_temp5_crit.dev_attr.attr, + &sensor_dev_attr_temp6_crit.dev_attr.attr, + &sensor_dev_attr_temp7_crit.dev_attr.attr, + &sensor_dev_attr_temp8_crit.dev_attr.attr, + + &sensor_dev_attr_fan1_input.dev_attr.attr, + &sensor_dev_attr_fan2_input.dev_attr.attr, + &sensor_dev_attr_fan3_input.dev_attr.attr, + &sensor_dev_attr_fan4_input.dev_attr.attr, + &sensor_dev_attr_fan1_fault.dev_attr.attr, + &sensor_dev_attr_fan2_fault.dev_attr.attr, + &sensor_dev_attr_fan3_fault.dev_attr.attr, + &sensor_dev_attr_fan4_fault.dev_attr.attr, + &sensor_dev_attr_fan1_min.dev_attr.attr, + &sensor_dev_attr_fan2_min.dev_attr.attr, + &sensor_dev_attr_fan3_min.dev_attr.attr, + &sensor_dev_attr_fan4_min.dev_attr.attr, + + &sensor_dev_attr_in0_input.dev_attr.attr, + &sensor_dev_attr_in1_input.dev_attr.attr, + &sensor_dev_attr_in2_input.dev_attr.attr, + &sensor_dev_attr_in3_input.dev_attr.attr, + &sensor_dev_attr_in4_input.dev_attr.attr, + &sensor_dev_attr_in0_label.dev_attr.attr, + &sensor_dev_attr_in1_label.dev_attr.attr, + &sensor_dev_attr_in2_label.dev_attr.attr, + &sensor_dev_attr_in3_label.dev_attr.attr, + /* No in4_label as in4 is a generic input pin */ + + NULL +}; + +static const struct attribute_group sch5627_group = { + .attrs = sch5627_attributes, +}; + +static int sch5627_remove(struct platform_device *pdev) +{ + struct sch5627_data *data = platform_get_drvdata(pdev); + + if (data->hwmon_dev) + hwmon_device_unregister(data->hwmon_dev); + + sysfs_remove_group(&pdev->dev.kobj, &sch5627_group); + platform_set_drvdata(pdev, NULL); + kfree(data); + + return 0; +} + +static int __devinit sch5627_probe(struct platform_device *pdev) +{ + struct sch5627_data *data; + int err, build_code, build_id, hwmon_rev, val; + + data = kzalloc(sizeof(struct sch5627_data), GFP_KERNEL); + if (!data) + return -ENOMEM; + + data->addr = platform_get_resource(pdev, IORESOURCE_IO, 0)->start; + mutex_init(&data->update_lock); + platform_set_drvdata(pdev, data); + + val = sch5627_read_virtual_reg(data, SCH5627_REG_HWMON_ID); + if (val < 0) { + err = val; + goto error; + } + if (val != SCH5627_HWMON_ID) { + pr_err("invalid %s id: 0x%02X (expected 0x%02X)\n", "hwmon", + val, SCH5627_HWMON_ID); + err = -ENODEV; + goto error; + } + + val = sch5627_read_virtual_reg(data, SCH5627_REG_COMPANY_ID); + if (val < 0) { + err = val; + goto error; + } + if (val != SCH5627_COMPANY_ID) { + pr_err("invalid %s id: 0x%02X (expected 0x%02X)\n", "company", + val, SCH5627_COMPANY_ID); + err = -ENODEV; + goto error; + } + + val = sch5627_read_virtual_reg(data, SCH5627_REG_PRIMARY_ID); + if (val < 0) { + err = val; + goto error; + } + if (val != SCH5627_PRIMARY_ID) { + pr_err("invalid %s id: 0x%02X (expected 0x%02X)\n", "primary", + val, SCH5627_PRIMARY_ID); + err = -ENODEV; + goto error; + } + + build_code = sch5627_read_virtual_reg(data, SCH5627_REG_BUILD_CODE); + if (build_code < 0) { + err = build_code; + goto error; + } + + build_id = sch5627_read_virtual_reg16(data, SCH5627_REG_BUILD_ID); + if (build_id < 0) { + err = build_id; + goto error; + } + + hwmon_rev = sch5627_read_virtual_reg(data, SCH5627_REG_HWMON_REV); + if (hwmon_rev < 0) { + err = hwmon_rev; + goto error; + } + + val = sch5627_read_virtual_reg(data, SCH5627_REG_CTRL); + if (val < 0) { + err = val; + goto error; + } + if (!(val & 0x01)) { + pr_err("hardware monitoring not enabled\n"); + err = -ENODEV; + goto error; + } + + /* + * Read limits, we do this only once as reading a register on + * the sch5627 is quite expensive (and they don't change). + */ + err = sch5627_read_limits(data); + if (err) + goto error; + + pr_info("firmware build: code 0x%02X, id 0x%04X, hwmon: rev 0x%02X\n", + build_code, build_id, hwmon_rev); + + /* Register sysfs interface files */ + err = sysfs_create_group(&pdev->dev.kobj, &sch5627_group); + if (err) + goto error; + + data->hwmon_dev = hwmon_device_register(&pdev->dev); + if (IS_ERR(data->hwmon_dev)) { + err = PTR_ERR(data->hwmon_dev); + data->hwmon_dev = NULL; + goto error; + } + + return 0; + +error: + sch5627_remove(pdev); + return err; +} + +static int __init sch5627_find(int sioaddr, unsigned short *address) +{ + u8 devid; + int err = superio_enter(sioaddr); + if (err) + return err; + + devid = superio_inb(sioaddr, SIO_REG_DEVID); + if (devid != SIO_SCH5627_ID) { + pr_debug("Unsupported device id: 0x%02x\n", + (unsigned int)devid); + err = -ENODEV; + goto exit; + } + + superio_select(sioaddr, SIO_SCH5627_EM_LD); + + if (!(superio_inb(sioaddr, SIO_REG_ENABLE) & 0x01)) { + pr_warn("Device not activated\n"); + err = -ENODEV; + goto exit; + } + + /* + * Warning the order of the low / high byte is the other way around + * as on most other superio devices!! + */ + *address = superio_inb(sioaddr, SIO_REG_ADDR) | + superio_inb(sioaddr, SIO_REG_ADDR + 1) << 8; + if (*address == 0) { + pr_warn("Base address not set\n"); + err = -ENODEV; + goto exit; + } + + pr_info("Found %s chip at %#hx\n", DEVNAME, *address); +exit: + superio_exit(sioaddr); + return err; +} + +static int __init sch5627_device_add(unsigned short address) +{ + struct resource res = { + .start = address, + .end = address + REGION_LENGTH - 1, + .flags = IORESOURCE_IO, + }; + int err; + + sch5627_pdev = platform_device_alloc(DRVNAME, address); + if (!sch5627_pdev) + return -ENOMEM; + + res.name = sch5627_pdev->name; + err = acpi_check_resource_conflict(&res); + if (err) + goto exit_device_put; + + err = platform_device_add_resources(sch5627_pdev, &res, 1); + if (err) { + pr_err("Device resource addition failed\n"); + goto exit_device_put; + } + + err = platform_device_add(sch5627_pdev); + if (err) { + pr_err("Device addition failed\n"); + goto exit_device_put; + } + + return 0; + +exit_device_put: + platform_device_put(sch5627_pdev); + + return err; +} + +static struct platform_driver sch5627_driver = { + .driver = { + .owner = THIS_MODULE, + .name = DRVNAME, + }, + .probe = sch5627_probe, + .remove = sch5627_remove, +}; + +static int __init sch5627_init(void) +{ + int err = -ENODEV; + unsigned short address; + + if (sch5627_find(0x4e, &address) && sch5627_find(0x2e, &address)) + goto exit; + + err = platform_driver_register(&sch5627_driver); + if (err) + goto exit; + + err = sch5627_device_add(address); + if (err) + goto exit_driver; + + return 0; + +exit_driver: + platform_driver_unregister(&sch5627_driver); +exit: + return err; +} + +static void __exit sch5627_exit(void) +{ + platform_device_unregister(sch5627_pdev); + platform_driver_unregister(&sch5627_driver); +} + +MODULE_DESCRIPTION("SMSC SCH5627 Hardware Monitoring Driver"); +MODULE_AUTHOR("Hans de Goede (hdegoede@redhat.com)"); +MODULE_LICENSE("GPL"); + +module_init(sch5627_init); +module_exit(sch5627_exit); diff --git a/drivers/hwmon/sht15.c b/drivers/hwmon/sht15.c index a610e7880fb3..1a9c32d6893a 100644 --- a/drivers/hwmon/sht15.c +++ b/drivers/hwmon/sht15.c @@ -333,11 +333,11 @@ static inline int sht15_calc_humid(struct sht15_data *data) const int c1 = -4; const int c2 = 40500; /* x 10 ^ -6 */ - const int c3 = -2800; /* x10 ^ -9 */ + const int c3 = -28; /* x 10 ^ -7 */ RHlinear = c1*1000 + c2 * data->val_humid/1000 - + (data->val_humid * data->val_humid * c3)/1000000; + + (data->val_humid * data->val_humid * c3) / 10000; return (temp - 25000) * (10000 + 80 * data->val_humid) / 1000000 + RHlinear; } @@ -610,7 +610,7 @@ static int __devexit sht15_remove(struct platform_device *pdev) struct sht15_data *data = platform_get_drvdata(pdev); /* Make sure any reads from the device are done and - * prevent new ones beginnning */ + * prevent new ones from beginning */ mutex_lock(&data->read_lock); hwmon_device_unregister(data->hwmon_dev); sysfs_remove_group(&pdev->dev.kobj, &sht15_attr_group); diff --git a/drivers/hwmon/twl4030-madc-hwmon.c b/drivers/hwmon/twl4030-madc-hwmon.c new file mode 100644 index 000000000000..97e22bef85ab --- /dev/null +++ b/drivers/hwmon/twl4030-madc-hwmon.c @@ -0,0 +1,157 @@ +/* + * + * TWL4030 MADC Hwmon driver-This driver monitors the real time + * conversion of analog signals like battery temperature, + * battery type, battery level etc. User can ask for the conversion on a + * particular channel using the sysfs nodes. + * + * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/ + * J Keerthy <j-keerthy@ti.com> + * + * 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 published by the Free Software Foundation. + * + * 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., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + * + */ +#include <linux/init.h> +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/i2c/twl.h> +#include <linux/device.h> +#include <linux/platform_device.h> +#include <linux/i2c/twl4030-madc.h> +#include <linux/hwmon.h> +#include <linux/hwmon-sysfs.h> +#include <linux/stddef.h> +#include <linux/sysfs.h> +#include <linux/err.h> +#include <linux/types.h> + +/* + * sysfs hook function + */ +static ssize_t madc_read(struct device *dev, + struct device_attribute *devattr, char *buf) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + struct twl4030_madc_request req; + long val; + + req.channels = (1 << attr->index); + req.method = TWL4030_MADC_SW2; + req.func_cb = NULL; + val = twl4030_madc_conversion(&req); + if (val < 0) + return val; + + return sprintf(buf, "%d\n", req.rbuf[attr->index]); +} + +/* sysfs nodes to read individual channels from user side */ +static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, madc_read, NULL, 0); +static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, madc_read, NULL, 1); +static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, madc_read, NULL, 2); +static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, madc_read, NULL, 3); +static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, madc_read, NULL, 4); +static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, madc_read, NULL, 5); +static SENSOR_DEVICE_ATTR(in6_input, S_IRUGO, madc_read, NULL, 6); +static SENSOR_DEVICE_ATTR(in7_input, S_IRUGO, madc_read, NULL, 7); +static SENSOR_DEVICE_ATTR(in8_input, S_IRUGO, madc_read, NULL, 8); +static SENSOR_DEVICE_ATTR(in9_input, S_IRUGO, madc_read, NULL, 9); +static SENSOR_DEVICE_ATTR(curr10_input, S_IRUGO, madc_read, NULL, 10); +static SENSOR_DEVICE_ATTR(in11_input, S_IRUGO, madc_read, NULL, 11); +static SENSOR_DEVICE_ATTR(in12_input, S_IRUGO, madc_read, NULL, 12); +static SENSOR_DEVICE_ATTR(in15_input, S_IRUGO, madc_read, NULL, 15); + +static struct attribute *twl4030_madc_attributes[] = { + &sensor_dev_attr_in0_input.dev_attr.attr, + &sensor_dev_attr_temp1_input.dev_attr.attr, + &sensor_dev_attr_in2_input.dev_attr.attr, + &sensor_dev_attr_in3_input.dev_attr.attr, + &sensor_dev_attr_in4_input.dev_attr.attr, + &sensor_dev_attr_in5_input.dev_attr.attr, + &sensor_dev_attr_in6_input.dev_attr.attr, + &sensor_dev_attr_in7_input.dev_attr.attr, + &sensor_dev_attr_in8_input.dev_attr.attr, + &sensor_dev_attr_in9_input.dev_attr.attr, + &sensor_dev_attr_curr10_input.dev_attr.attr, + &sensor_dev_attr_in11_input.dev_attr.attr, + &sensor_dev_attr_in12_input.dev_attr.attr, + &sensor_dev_attr_in15_input.dev_attr.attr, + NULL +}; + +static const struct attribute_group twl4030_madc_group = { + .attrs = twl4030_madc_attributes, +}; + +static int __devinit twl4030_madc_hwmon_probe(struct platform_device *pdev) +{ + int ret; + int status; + struct device *hwmon; + + ret = sysfs_create_group(&pdev->dev.kobj, &twl4030_madc_group); + if (ret) + goto err_sysfs; + hwmon = hwmon_device_register(&pdev->dev); + if (IS_ERR(hwmon)) { + dev_err(&pdev->dev, "hwmon_device_register failed.\n"); + status = PTR_ERR(hwmon); + goto err_reg; + } + + return 0; + +err_reg: + sysfs_remove_group(&pdev->dev.kobj, &twl4030_madc_group); +err_sysfs: + + return ret; +} + +static int __devexit twl4030_madc_hwmon_remove(struct platform_device *pdev) +{ + hwmon_device_unregister(&pdev->dev); + sysfs_remove_group(&pdev->dev.kobj, &twl4030_madc_group); + + return 0; +} + +static struct platform_driver twl4030_madc_hwmon_driver = { + .probe = twl4030_madc_hwmon_probe, + .remove = __exit_p(twl4030_madc_hwmon_remove), + .driver = { + .name = "twl4030_madc_hwmon", + .owner = THIS_MODULE, + }, +}; + +static int __init twl4030_madc_hwmon_init(void) +{ + return platform_driver_register(&twl4030_madc_hwmon_driver); +} + +module_init(twl4030_madc_hwmon_init); + +static void __exit twl4030_madc_hwmon_exit(void) +{ + platform_driver_unregister(&twl4030_madc_hwmon_driver); +} + +module_exit(twl4030_madc_hwmon_exit); + +MODULE_DESCRIPTION("TWL4030 ADC Hwmon driver"); +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("J Keerthy"); +MODULE_ALIAS("twl4030_madc_hwmon"); |