From patchwork Mon Jul 11 12:12:30 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thilo Cestonaro X-Patchwork-Id: 9223411 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id AD2DD60760 for ; Mon, 11 Jul 2016 12:15:58 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 909DA27C38 for ; Mon, 11 Jul 2016 12:15:58 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 8334B27CF5; Mon, 11 Jul 2016 12:15:58 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 5EC7527C38 for ; Mon, 11 Jul 2016 12:15:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753104AbcGKMPz (ORCPT ); Mon, 11 Jul 2016 08:15:55 -0400 Received: from mail1.bemta3.messagelabs.com ([195.245.230.164]:36131 "EHLO mail1.bemta3.messagelabs.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752568AbcGKMPy (ORCPT ); Mon, 11 Jul 2016 08:15:54 -0400 Received: from [85.158.138.179] by server-4.bemta-3.messagelabs.com id F7/AE-18304-5FD83875; Mon, 11 Jul 2016 12:15:49 +0000 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFjrFLMWRWlGSWpSXmKPExsViZ8MRqvu1tzn c4NAbIYv211sZHRg9Pm+SC2CMYs3MS8qvSGDN+HL/P3vByVeMFatWzGFsYHx/hrGLkYtDSOAY o8TSc7ehnEmMEgv2fAZyODjYBMwkvq0v7GLk5BARUJNoPtXCBmIzC0RK7DnRD2YLC3hJbGzbz QhiswioSvw78ZYFxOYV8JW4f+QkWI2EgJzE5ekP2CYwci5gZFjFqF6cWlSWWqRrqJdUlJmeUZ KbmJmja2hgrJebWlycmJ6ak5hUrJecn7uJEegvBiDYwbj8o9MhRkkOJiVRXsHc5nAhvqT8lMq MxOKM+KLSnNTiQ4wyHBxKEryreoBygkWp6akVaZk5wMCBSUtw8CiJ8P4CSfMWFyTmFmemQ6RO MepyLNn1YC2TEEtefl6qlDjvbpAiAZCijNI8uBGwIL7EKCslzMsIdJQQT0FqUW5mCar8K0ZxD kYlYd6TIFN4MvNK4Da9AjqCCeiIWgewI0oSEVJSDYxnJgifD+pknr3ZiVXn9pWIdX1fu9+Hf2 oJWJIWJMG7Z+mE5Fv8z+WL5f56bHYMvG4Rtif0443LkZ+ZnhStFP8277R6Umi+3T3hBY7rNl1 Jq41Id0idYPClmT+xeXJU2cWeNzIem7ZeerupaYKZsOZJRqHFU+pOmO/8+JHpFOPivpo03nUP 9/orsRRnJBpqMRcVJwIAdzOF210CAAA= X-Env-Sender: thilo.cestonaro@ts.fujitsu.com X-Msg-Ref: server-3.tower-169.messagelabs.com!1468239334!49533399!1 X-Originating-IP: [62.60.8.85] X-StarScan-Received: X-StarScan-Version: 8.77; banners=-,-,- X-VirusChecked: Checked Received: (qmail 25740 invoked from network); 11 Jul 2016 12:15:35 -0000 Received: from unknown (HELO mailhost4.uk.fujitsu.com) (62.60.8.85) by server-3.tower-169.messagelabs.com with DHE-RSA-AES256-GCM-SHA384 encrypted SMTP; 11 Jul 2016 12:15:35 -0000 Received: from abgdgate60u.abg.fsc.net ([172.25.138.90]) by mailhost4.uk.fujitsu.com (8.14.5/8.14.5) with ESMTP id u6BCE1bY004016 for ; Mon, 11 Jul 2016 13:14:08 +0100 Received: from pdc.csod.local (HELO abg4858n-lnx.CSOD.local) ([10.172.228.21]) by abgdgate60u.abg.fsc.net with ESMTP; 11 Jul 2016 14:15:27 +0200 From: Thilo Cestonaro To: Guenter Roeck Cc: linux-hwmon , Thilo Cestonaro Subject: [PATCH v6] hwmon: added kernel module for FTS BMC chip "Teutates" Date: Mon, 11 Jul 2016 14:12:30 +0200 Message-Id: <1468239150-4274-1-git-send-email-thilo.cestonaro@ts.fujitsu.com> X-Mailer: git-send-email 2.8.1 Sender: linux-hwmon-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-hwmon@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Thilo Cestonaro This driver implements support for the FTS BMC Chip "Teutates". Signed-off-by: Thilo Cestonaro --- v6: watchdog resolution handling overworked. (fts_wd_init, fts_wd_set_timeout, fts_wd_set_resolution, fts_wd_start) v5: removed fts_wd_set_timeout added switch between seconds and minutes to fts_wd_start. added WDIOF_MAGICCLOSE cleanup fts_wd_set_resolution return code v4: fixed Kconfig indention removed watchdog_resolution var from fts_data struct removed compile warnings (W=1) fixed checkpatch --strict warnings and errors WDOG_ACTIVE => WDOG_HW_RUNNING watchdog max_timeout in seconds removed unnecessary error checks fts_remove cleanup Documentation/hwmon/ftsteutates | 23 ++ drivers/hwmon/Kconfig | 11 + drivers/hwmon/Makefile | 1 + drivers/hwmon/ftsteutates.c | 814 ++++++++++++++++++++++++++++++++++++++++ 4 files changed, 849 insertions(+) create mode 100644 Documentation/hwmon/ftsteutates create mode 100644 drivers/hwmon/ftsteutates.c diff --git a/Documentation/hwmon/ftsteutates b/Documentation/hwmon/ftsteutates new file mode 100644 index 0000000..2a1bf69 --- /dev/null +++ b/Documentation/hwmon/ftsteutates @@ -0,0 +1,23 @@ +Kernel driver ftsteutates +===================== + +Supported chips: + * FTS Teutates + Prefix: 'ftsteutates' + Addresses scanned: I2C 0x73 (7-Bit) + +Author: Thilo Cestonaro + + +Description +----------- +The BMC Teutates is the Eleventh generation of Superior System +monitoring and thermal management solution. It is builds on the basic +functionality of the BMC Theseus and contains several new features and +enhancements. It can monitor up to 4 voltages, 16 temperatures and +8 fans. It also contains an integrated watchdog which is currently +implemented in this driver. + +Specification of the chip can be found here: +ftp:///pub/Mainboard-OEM-Sales/Services/Software&Tools/Linux_SystemMonitoring&Watchdog&GPIO/BMC-Teutates_Specification_V1.21.pdf +ftp:///pub/Mainboard-OEM-Sales/Services/Software&Tools/Linux_SystemMonitoring&Watchdog&GPIO/Fujitsu_mainboards-1-Sensors_HowTo-en-US.pdf diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig index ff94007..fd6234c 100644 --- a/drivers/hwmon/Kconfig +++ b/drivers/hwmon/Kconfig @@ -486,6 +486,17 @@ config SENSORS_FSCHMD This driver can also be built as a module. If so, the module will be called fschmd. +config SENSORS_FTSTEUTATES + tristate "Fujitsu Technology Solutions sensor chip Teutates" + depends on I2C + help + If you say yes here you get support for the Fujitsu Technology + Solutions (FTS) sensor chip "Teutates" including support for + the integrated watchdog. + + This driver can also be built as a module. If so, the module + will be called ftsteutates. + config SENSORS_GL518SM tristate "Genesys Logic GL518SM" depends on I2C diff --git a/drivers/hwmon/Makefile b/drivers/hwmon/Makefile index 2ef5b7c..dcad5f7 100644 --- a/drivers/hwmon/Makefile +++ b/drivers/hwmon/Makefile @@ -62,6 +62,7 @@ obj-$(CONFIG_SENSORS_F71882FG) += f71882fg.o obj-$(CONFIG_SENSORS_F75375S) += f75375s.o obj-$(CONFIG_SENSORS_FAM15H_POWER) += fam15h_power.o obj-$(CONFIG_SENSORS_FSCHMD) += fschmd.o +obj-$(CONFIG_SENSORS_FTSTEUTATES) += ftsteutates.o obj-$(CONFIG_SENSORS_G760A) += g760a.o obj-$(CONFIG_SENSORS_G762) += g762.o obj-$(CONFIG_SENSORS_GL518SM) += gl518sm.o diff --git a/drivers/hwmon/ftsteutates.c b/drivers/hwmon/ftsteutates.c new file mode 100644 index 0000000..b1dc10b --- /dev/null +++ b/drivers/hwmon/ftsteutates.c @@ -0,0 +1,814 @@ +/* + * Support for the FTS Systemmonitoring Chip "Teutates" + * + * Copyright (C) 2016 Fujitsu Technology Solutions GmbH, + * Thilo Cestonaro + * + * 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. + * + */ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define FTS_DEVICE_ID_REG 0x0000 +#define FTS_DEVICE_REVISION_REG 0x0001 +#define FTS_DEVICE_STATUS_REG 0x0004 +#define FTS_SATELLITE_STATUS_REG 0x0005 +#define FTS_EVENT_STATUS_REG 0x0006 +#define FTS_GLOBAL_CONTROL_REG 0x0007 + +#define FTS_SENSOR_EVENT_REG 0x0010 + +#define FTS_FAN_EVENT_REG 0x0014 +#define FTS_FAN_PRESENT_REG 0x0015 + +#define FTS_POWER_ON_TIME_COUNTER_A 0x007A +#define FTS_POWER_ON_TIME_COUNTER_B 0x007B +#define FTS_POWER_ON_TIME_COUNTER_C 0x007C + +#define FTS_PAGE_SELECT_REG 0x007F + +#define FTS_WATCHDOG_TIME_PRESET 0x000B +#define FTS_WATCHDOG_CONTROL 0x5081 + +#define FTS_NO_FAN_SENSORS 0x08 +#define FTS_NO_TEMP_SENSORS 0x10 +#define FTS_NO_VOLT_SENSORS 0x04 + +static struct i2c_device_id fts_id[] = { + { "ftsteutates", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, fts_id); + +enum WATCHDOG_RESOLUTION { + seconds = 1, + minutes = 60 +}; + +struct fts_data { + struct i2c_client *client; + /* update sensor data lock */ + struct mutex update_lock; + /* read/write register lock */ + struct mutex access_lock; + unsigned long last_updated; /* in jiffies */ + struct watchdog_device wdd; + enum WATCHDOG_RESOLUTION resolution; + bool valid; /* false until following fields are valid */ + + u8 volt[FTS_NO_VOLT_SENSORS]; + + u8 temp_input[FTS_NO_TEMP_SENSORS]; + u8 temp_alarm; + + u8 fan_present; + u8 fan_input[FTS_NO_FAN_SENSORS]; /* in rps */ + u8 fan_source[FTS_NO_FAN_SENSORS]; + u8 fan_alarm; +}; + +#define FTS_REG_FAN_INPUT(idx) ((idx) + 0x20) +#define FTS_REG_FAN_SOURCE(idx) ((idx) + 0x30) +#define FTS_REG_FAN_CONTROL(idx) (((idx) << 16) + 0x4881) + +#define FTS_REG_TEMP_INPUT(idx) ((idx) + 0x40) +#define FTS_REG_TEMP_CONTROL(idx) (((idx) << 16) + 0x0681) + +#define FTS_REG_VOLT(idx) ((idx) + 0x18) + +/*****************************************************************************/ +/* I2C Helper functions */ +/*****************************************************************************/ +static int fts_read_byte(struct i2c_client *client, unsigned short reg) +{ + int ret; + unsigned char page = reg >> 8; + struct fts_data *data = dev_get_drvdata(&client->dev); + + mutex_lock(&data->access_lock); + + dev_dbg(&client->dev, "page select - page: 0x%.02x\n", page); + ret = i2c_smbus_write_byte_data(client, FTS_PAGE_SELECT_REG, page); + if (ret < 0) + goto error; + + reg &= 0xFF; + ret = i2c_smbus_read_byte_data(client, reg); + dev_dbg(&client->dev, "read - reg: 0x%.02x: val: 0x%.02x\n", reg, ret); + +error: + mutex_unlock(&data->access_lock); + return ret; +} + +static int fts_write_byte(struct i2c_client *client, unsigned short reg, + unsigned char value) +{ + int ret; + unsigned char page = reg >> 8; + struct fts_data *data = dev_get_drvdata(&client->dev); + + mutex_lock(&data->access_lock); + + dev_dbg(&client->dev, "page select - page: 0x%.02x\n", page); + ret = i2c_smbus_write_byte_data(client, FTS_PAGE_SELECT_REG, page); + if (ret < 0) + goto error; + + reg &= 0xFF; + dev_dbg(&client->dev, + "write - reg: 0x%.02x: val: 0x%.02x\n", reg, value); + ret = i2c_smbus_write_byte_data(client, reg, value); + +error: + mutex_unlock(&data->access_lock); + return ret; +} + +/*****************************************************************************/ +/* Data Updater Helper function */ +/*****************************************************************************/ +static int fts_update_device(struct fts_data *data) +{ + int i; + int err = 0; + + mutex_lock(&data->update_lock); + if (!time_after(jiffies, data->last_updated + 2 * HZ) && data->valid) + goto exit; + + err = fts_read_byte(data->client, FTS_DEVICE_STATUS_REG); + if (err < 0) + goto exit; + + data->valid = !!(err & 0x02); /* Data not ready yet */ + if (unlikely(!data->valid)) { + err = -EAGAIN; + goto exit; + } + + err = fts_read_byte(data->client, FTS_FAN_PRESENT_REG); + if (err < 0) + goto exit; + data->fan_present = err; + + err = fts_read_byte(data->client, FTS_FAN_EVENT_REG); + if (err < 0) + goto exit; + data->fan_alarm = err; + + for (i = 0; i < FTS_NO_FAN_SENSORS; i++) { + if (data->fan_present & BIT(i)) { + err = fts_read_byte(data->client, FTS_REG_FAN_INPUT(i)); + if (err < 0) + goto exit; + data->fan_input[i] = err; + + err = fts_read_byte(data->client, + FTS_REG_FAN_SOURCE(i)); + if (err < 0) + goto exit; + data->fan_source[i] = err; + } else { + data->fan_input[i] = 0; + data->fan_source[i] = 0; + } + } + + err = fts_read_byte(data->client, FTS_SENSOR_EVENT_REG); + if (err < 0) + goto exit; + data->temp_alarm = err; + + for (i = 0; i < FTS_NO_TEMP_SENSORS; i++) { + err = fts_read_byte(data->client, FTS_REG_TEMP_INPUT(i)); + if (err < 0) + goto exit; + data->temp_input[i] = err; + } + + for (i = 0; i < FTS_NO_VOLT_SENSORS; i++) { + err = fts_read_byte(data->client, FTS_REG_VOLT(i)); + if (err < 0) + goto exit; + data->volt[i] = err; + } + data->last_updated = jiffies; + err = 0; +exit: + mutex_unlock(&data->update_lock); + return err; +} + +/*****************************************************************************/ +/* Watchdog functions */ +/*****************************************************************************/ +static int fts_wd_set_resolution(struct fts_data *data, + enum WATCHDOG_RESOLUTION resolution) +{ + int ret; + + if (data->resolution == resolution) + return 0; + + ret = fts_read_byte(data->client, FTS_WATCHDOG_CONTROL); + if (ret < 0) + return ret; + + if ((resolution == seconds && ret & BIT(1)) || + (resolution == minutes && (ret & BIT(1)) == 0)) { + data->resolution = resolution; + return 0; + } + + ret = fts_write_byte(data->client, FTS_WATCHDOG_CONTROL, + resolution == seconds ? + ret | BIT(1) : ret & ~BIT(1)); + if (ret < 0) + return ret; + + data->resolution = resolution; + return ret; +} + +static int fts_wd_set_timeout(struct watchdog_device *wdd, unsigned int timeout) +{ + struct fts_data *data; + enum WATCHDOG_RESOLUTION resolution = seconds; + int ret; + + data = watchdog_get_drvdata(wdd); + /* switch watchdog resolution to minutes if timeout does not fit + * into a byte + */ + if (timeout > 0xFF) { + timeout = DIV_ROUND_UP(timeout, 60) * 60; + resolution = minutes; + } + + ret = fts_wd_set_resolution(data, resolution); + if (ret < 0) + return ret; + + wdd->timeout = timeout; + return 0; +} + +static int fts_wd_start(struct watchdog_device *wdd) +{ + struct fts_data *data = watchdog_get_drvdata(wdd); + + return fts_write_byte(data->client, FTS_WATCHDOG_TIME_PRESET, + wdd->timeout / (u8)data->resolution); +} + +static int fts_wd_stop(struct watchdog_device *wdd) +{ + struct fts_data *data; + + data = watchdog_get_drvdata(wdd); + return fts_write_byte(data->client, FTS_WATCHDOG_TIME_PRESET, 0); +} + +static const struct watchdog_info fts_wd_info = { + .options = WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING | WDIOF_MAGICCLOSE, + .identity = "FTS Teutates Hardware Watchdog", +}; + +static const struct watchdog_ops fts_wd_ops = { + .owner = THIS_MODULE, + .start = fts_wd_start, + .stop = fts_wd_stop, + .set_timeout = fts_wd_set_timeout, +}; + +static int fts_watchdog_init(struct fts_data *data) +{ + int timeout, ret; + + watchdog_set_drvdata(&data->wdd, data); + + timeout = fts_read_byte(data->client, FTS_WATCHDOG_TIME_PRESET); + if (timeout < 0) + return timeout; + + /* watchdog not running, set timeout to a default of 60 sec. */ + if (timeout == 0) { + ret = fts_wd_set_resolution(data, seconds); + if (ret < 0) + return ret; + data->wdd.timeout = 60; + } else { + ret = fts_read_byte(data->client, FTS_WATCHDOG_CONTROL); + if (ret < 0) + return ret; + + data->resolution = ret & BIT(1) ? seconds : minutes; + data->wdd.timeout = timeout * (u8)data->resolution; + data->wdd.status |= BIT(WDOG_HW_RUNNING); + } + + /* Register our watchdog part */ + data->wdd.info = &fts_wd_info; + data->wdd.ops = &fts_wd_ops; + data->wdd.parent = &data->client->dev; + data->wdd.min_timeout = 1; + data->wdd.max_timeout = 0xFF * 60; /* max timeout 255 minutes. */ + return watchdog_register_device(&data->wdd); +} + +/*****************************************************************************/ +/* SysFS handler functions */ +/*****************************************************************************/ +static ssize_t show_in_value(struct device *dev, + struct device_attribute *devattr, char *buf) +{ + struct fts_data *data = dev_get_drvdata(dev); + int index = to_sensor_dev_attr(devattr)->index; + int err; + + err = fts_update_device(data); + if (err < 0) + return err; + + return sprintf(buf, "%u\n", data->volt[index]); +} + +static ssize_t show_temp_value(struct device *dev, + struct device_attribute *devattr, char *buf) +{ + struct fts_data *data = dev_get_drvdata(dev); + int index = to_sensor_dev_attr(devattr)->index; + int err; + + err = fts_update_device(data); + if (err < 0) + return err; + + return sprintf(buf, "%u\n", data->temp_input[index]); +} + +static ssize_t show_temp_fault(struct device *dev, + struct device_attribute *devattr, char *buf) +{ + struct fts_data *data = dev_get_drvdata(dev); + int index = to_sensor_dev_attr(devattr)->index; + int err; + + err = fts_update_device(data); + if (err < 0) + return err; + + /* 00h Temperature = Sensor Error */ + return sprintf(buf, "%d\n", data->temp_input[index] == 0); +} + +static ssize_t show_temp_alarm(struct device *dev, + struct device_attribute *devattr, char *buf) +{ + struct fts_data *data = dev_get_drvdata(dev); + int index = to_sensor_dev_attr(devattr)->index; + int err; + + err = fts_update_device(data); + if (err < 0) + return err; + + return sprintf(buf, "%u\n", !!(data->temp_alarm & BIT(index))); +} + +static ssize_t +clear_temp_alarm(struct device *dev, struct device_attribute *devattr, + const char *buf, size_t count) +{ + struct fts_data *data = dev_get_drvdata(dev); + int index = to_sensor_dev_attr(devattr)->index; + long ret; + + ret = fts_update_device(data); + if (ret < 0) + return ret; + + if (kstrtoul(buf, 10, &ret) || ret != 0) + return -EINVAL; + + mutex_lock(&data->update_lock); + ret = fts_read_byte(data->client, FTS_REG_TEMP_CONTROL(index)); + if (ret < 0) + goto error; + + ret = fts_write_byte(data->client, FTS_REG_TEMP_CONTROL(index), + ret | 0x1); + if (ret < 0) + goto error; + + data->valid = false; +error: + mutex_unlock(&data->update_lock); + return ret; +} + +static ssize_t show_fan_value(struct device *dev, + struct device_attribute *devattr, char *buf) +{ + struct fts_data *data = dev_get_drvdata(dev); + int index = to_sensor_dev_attr(devattr)->index; + int err; + + err = fts_update_device(data); + if (err < 0) + return err; + + return sprintf(buf, "%u\n", data->fan_input[index]); +} + +static ssize_t show_fan_source(struct device *dev, + struct device_attribute *devattr, char *buf) +{ + struct fts_data *data = dev_get_drvdata(dev); + int index = to_sensor_dev_attr(devattr)->index; + int err; + + err = fts_update_device(data); + if (err < 0) + return err; + + return sprintf(buf, "%u\n", data->fan_source[index]); +} + +static ssize_t show_fan_alarm(struct device *dev, + struct device_attribute *devattr, char *buf) +{ + struct fts_data *data = dev_get_drvdata(dev); + int index = to_sensor_dev_attr(devattr)->index; + int err; + + err = fts_update_device(data); + if (err < 0) + return err; + + return sprintf(buf, "%d\n", !!(data->fan_alarm & BIT(index))); +} + +static ssize_t +clear_fan_alarm(struct device *dev, struct device_attribute *devattr, + const char *buf, size_t count) +{ + struct fts_data *data = dev_get_drvdata(dev); + int index = to_sensor_dev_attr(devattr)->index; + long ret; + + ret = fts_update_device(data); + if (ret < 0) + return ret; + + if (kstrtoul(buf, 10, &ret) || ret != 0) + return -EINVAL; + + mutex_lock(&data->update_lock); + ret = fts_read_byte(data->client, FTS_REG_FAN_CONTROL(index)); + if (ret < 0) + goto error; + + ret = fts_write_byte(data->client, FTS_REG_FAN_CONTROL(index), + ret | 0x1); + if (ret < 0) + goto error; + + data->valid = false; +error: + mutex_unlock(&data->update_lock); + return ret; +} + +/*****************************************************************************/ +/* SysFS structs */ +/*****************************************************************************/ + +/* Temprature sensors */ +static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp_value, NULL, 0); +static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp_value, NULL, 1); +static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, show_temp_value, NULL, 2); +static SENSOR_DEVICE_ATTR(temp4_input, S_IRUGO, show_temp_value, NULL, 3); +static SENSOR_DEVICE_ATTR(temp5_input, S_IRUGO, show_temp_value, NULL, 4); +static SENSOR_DEVICE_ATTR(temp6_input, S_IRUGO, show_temp_value, NULL, 5); +static SENSOR_DEVICE_ATTR(temp7_input, S_IRUGO, show_temp_value, NULL, 6); +static SENSOR_DEVICE_ATTR(temp8_input, S_IRUGO, show_temp_value, NULL, 7); +static SENSOR_DEVICE_ATTR(temp9_input, S_IRUGO, show_temp_value, NULL, 8); +static SENSOR_DEVICE_ATTR(temp10_input, S_IRUGO, show_temp_value, NULL, 9); +static SENSOR_DEVICE_ATTR(temp11_input, S_IRUGO, show_temp_value, NULL, 10); +static SENSOR_DEVICE_ATTR(temp12_input, S_IRUGO, show_temp_value, NULL, 11); +static SENSOR_DEVICE_ATTR(temp13_input, S_IRUGO, show_temp_value, NULL, 12); +static SENSOR_DEVICE_ATTR(temp14_input, S_IRUGO, show_temp_value, NULL, 13); +static SENSOR_DEVICE_ATTR(temp15_input, S_IRUGO, show_temp_value, NULL, 14); +static SENSOR_DEVICE_ATTR(temp16_input, S_IRUGO, show_temp_value, NULL, 15); + +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(temp9_fault, S_IRUGO, show_temp_fault, NULL, 8); +static SENSOR_DEVICE_ATTR(temp10_fault, S_IRUGO, show_temp_fault, NULL, 9); +static SENSOR_DEVICE_ATTR(temp11_fault, S_IRUGO, show_temp_fault, NULL, 10); +static SENSOR_DEVICE_ATTR(temp12_fault, S_IRUGO, show_temp_fault, NULL, 11); +static SENSOR_DEVICE_ATTR(temp13_fault, S_IRUGO, show_temp_fault, NULL, 12); +static SENSOR_DEVICE_ATTR(temp14_fault, S_IRUGO, show_temp_fault, NULL, 13); +static SENSOR_DEVICE_ATTR(temp15_fault, S_IRUGO, show_temp_fault, NULL, 14); +static SENSOR_DEVICE_ATTR(temp16_fault, S_IRUGO, show_temp_fault, NULL, 15); + +static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO | S_IWUSR, show_temp_alarm, + clear_temp_alarm, 0); +static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO | S_IWUSR, show_temp_alarm, + clear_temp_alarm, 1); +static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO | S_IWUSR, show_temp_alarm, + clear_temp_alarm, 2); +static SENSOR_DEVICE_ATTR(temp4_alarm, S_IRUGO | S_IWUSR, show_temp_alarm, + clear_temp_alarm, 3); +static SENSOR_DEVICE_ATTR(temp5_alarm, S_IRUGO | S_IWUSR, show_temp_alarm, + clear_temp_alarm, 4); +static SENSOR_DEVICE_ATTR(temp6_alarm, S_IRUGO | S_IWUSR, show_temp_alarm, + clear_temp_alarm, 5); +static SENSOR_DEVICE_ATTR(temp7_alarm, S_IRUGO | S_IWUSR, show_temp_alarm, + clear_temp_alarm, 6); +static SENSOR_DEVICE_ATTR(temp8_alarm, S_IRUGO | S_IWUSR, show_temp_alarm, + clear_temp_alarm, 7); +static SENSOR_DEVICE_ATTR(temp9_alarm, S_IRUGO | S_IWUSR, show_temp_alarm, + clear_temp_alarm, 8); +static SENSOR_DEVICE_ATTR(temp10_alarm, S_IRUGO | S_IWUSR, show_temp_alarm, + clear_temp_alarm, 9); +static SENSOR_DEVICE_ATTR(temp11_alarm, S_IRUGO | S_IWUSR, show_temp_alarm, + clear_temp_alarm, 10); +static SENSOR_DEVICE_ATTR(temp12_alarm, S_IRUGO | S_IWUSR, show_temp_alarm, + clear_temp_alarm, 11); +static SENSOR_DEVICE_ATTR(temp13_alarm, S_IRUGO | S_IWUSR, show_temp_alarm, + clear_temp_alarm, 12); +static SENSOR_DEVICE_ATTR(temp14_alarm, S_IRUGO | S_IWUSR, show_temp_alarm, + clear_temp_alarm, 13); +static SENSOR_DEVICE_ATTR(temp15_alarm, S_IRUGO | S_IWUSR, show_temp_alarm, + clear_temp_alarm, 14); +static SENSOR_DEVICE_ATTR(temp16_alarm, S_IRUGO | S_IWUSR, show_temp_alarm, + clear_temp_alarm, 15); + +static struct attribute *fts_temp_attrs[] = { + &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_temp9_input.dev_attr.attr, + &sensor_dev_attr_temp10_input.dev_attr.attr, + &sensor_dev_attr_temp11_input.dev_attr.attr, + &sensor_dev_attr_temp12_input.dev_attr.attr, + &sensor_dev_attr_temp13_input.dev_attr.attr, + &sensor_dev_attr_temp14_input.dev_attr.attr, + &sensor_dev_attr_temp15_input.dev_attr.attr, + &sensor_dev_attr_temp16_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_temp9_fault.dev_attr.attr, + &sensor_dev_attr_temp10_fault.dev_attr.attr, + &sensor_dev_attr_temp11_fault.dev_attr.attr, + &sensor_dev_attr_temp12_fault.dev_attr.attr, + &sensor_dev_attr_temp13_fault.dev_attr.attr, + &sensor_dev_attr_temp14_fault.dev_attr.attr, + &sensor_dev_attr_temp15_fault.dev_attr.attr, + &sensor_dev_attr_temp16_fault.dev_attr.attr, + + &sensor_dev_attr_temp1_alarm.dev_attr.attr, + &sensor_dev_attr_temp2_alarm.dev_attr.attr, + &sensor_dev_attr_temp3_alarm.dev_attr.attr, + &sensor_dev_attr_temp4_alarm.dev_attr.attr, + &sensor_dev_attr_temp5_alarm.dev_attr.attr, + &sensor_dev_attr_temp6_alarm.dev_attr.attr, + &sensor_dev_attr_temp7_alarm.dev_attr.attr, + &sensor_dev_attr_temp8_alarm.dev_attr.attr, + &sensor_dev_attr_temp9_alarm.dev_attr.attr, + &sensor_dev_attr_temp10_alarm.dev_attr.attr, + &sensor_dev_attr_temp11_alarm.dev_attr.attr, + &sensor_dev_attr_temp12_alarm.dev_attr.attr, + &sensor_dev_attr_temp13_alarm.dev_attr.attr, + &sensor_dev_attr_temp14_alarm.dev_attr.attr, + &sensor_dev_attr_temp15_alarm.dev_attr.attr, + &sensor_dev_attr_temp16_alarm.dev_attr.attr, + NULL +}; + +/* Fans */ +static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan_value, NULL, 0); +static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan_value, NULL, 1); +static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan_value, NULL, 2); +static SENSOR_DEVICE_ATTR(fan4_input, S_IRUGO, show_fan_value, NULL, 3); +static SENSOR_DEVICE_ATTR(fan5_input, S_IRUGO, show_fan_value, NULL, 4); +static SENSOR_DEVICE_ATTR(fan6_input, S_IRUGO, show_fan_value, NULL, 5); +static SENSOR_DEVICE_ATTR(fan7_input, S_IRUGO, show_fan_value, NULL, 6); +static SENSOR_DEVICE_ATTR(fan8_input, S_IRUGO, show_fan_value, NULL, 7); + +static SENSOR_DEVICE_ATTR(fan1_source, S_IRUGO, show_fan_source, NULL, 0); +static SENSOR_DEVICE_ATTR(fan2_source, S_IRUGO, show_fan_source, NULL, 1); +static SENSOR_DEVICE_ATTR(fan3_source, S_IRUGO, show_fan_source, NULL, 2); +static SENSOR_DEVICE_ATTR(fan4_source, S_IRUGO, show_fan_source, NULL, 3); +static SENSOR_DEVICE_ATTR(fan5_source, S_IRUGO, show_fan_source, NULL, 4); +static SENSOR_DEVICE_ATTR(fan6_source, S_IRUGO, show_fan_source, NULL, 5); +static SENSOR_DEVICE_ATTR(fan7_source, S_IRUGO, show_fan_source, NULL, 6); +static SENSOR_DEVICE_ATTR(fan8_source, S_IRUGO, show_fan_source, NULL, 7); + +static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO | S_IWUSR, + show_fan_alarm, clear_fan_alarm, 0); +static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO | S_IWUSR, + show_fan_alarm, clear_fan_alarm, 1); +static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO | S_IWUSR, + show_fan_alarm, clear_fan_alarm, 2); +static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO | S_IWUSR, + show_fan_alarm, clear_fan_alarm, 3); +static SENSOR_DEVICE_ATTR(fan5_alarm, S_IRUGO | S_IWUSR, + show_fan_alarm, clear_fan_alarm, 4); +static SENSOR_DEVICE_ATTR(fan6_alarm, S_IRUGO | S_IWUSR, + show_fan_alarm, clear_fan_alarm, 5); +static SENSOR_DEVICE_ATTR(fan7_alarm, S_IRUGO | S_IWUSR, + show_fan_alarm, clear_fan_alarm, 6); +static SENSOR_DEVICE_ATTR(fan8_alarm, S_IRUGO | S_IWUSR, + show_fan_alarm, clear_fan_alarm, 7); + +static struct attribute *fts_fan_attrs[] = { + &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_fan5_input.dev_attr.attr, + &sensor_dev_attr_fan6_input.dev_attr.attr, + &sensor_dev_attr_fan7_input.dev_attr.attr, + &sensor_dev_attr_fan8_input.dev_attr.attr, + + &sensor_dev_attr_fan1_source.dev_attr.attr, + &sensor_dev_attr_fan2_source.dev_attr.attr, + &sensor_dev_attr_fan3_source.dev_attr.attr, + &sensor_dev_attr_fan4_source.dev_attr.attr, + &sensor_dev_attr_fan5_source.dev_attr.attr, + &sensor_dev_attr_fan6_source.dev_attr.attr, + &sensor_dev_attr_fan7_source.dev_attr.attr, + &sensor_dev_attr_fan8_source.dev_attr.attr, + + &sensor_dev_attr_fan1_alarm.dev_attr.attr, + &sensor_dev_attr_fan2_alarm.dev_attr.attr, + &sensor_dev_attr_fan3_alarm.dev_attr.attr, + &sensor_dev_attr_fan4_alarm.dev_attr.attr, + &sensor_dev_attr_fan5_alarm.dev_attr.attr, + &sensor_dev_attr_fan6_alarm.dev_attr.attr, + &sensor_dev_attr_fan7_alarm.dev_attr.attr, + &sensor_dev_attr_fan8_alarm.dev_attr.attr, + NULL +}; + +/* Voltages */ +static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_in_value, NULL, 0); +static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_in_value, NULL, 1); +static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_in_value, NULL, 2); +static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, show_in_value, NULL, 3); +static struct attribute *fts_voltage_attrs[] = { + &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, + NULL +}; + +static const struct attribute_group fts_voltage_attr_group = { + .attrs = fts_voltage_attrs +}; + +static const struct attribute_group fts_temp_attr_group = { + .attrs = fts_temp_attrs +}; + +static const struct attribute_group fts_fan_attr_group = { + .attrs = fts_fan_attrs +}; + +static const struct attribute_group *fts_attr_groups[] = { + &fts_voltage_attr_group, + &fts_temp_attr_group, + &fts_fan_attr_group, + NULL +}; + +/*****************************************************************************/ +/* Module initialization / remove functions */ +/*****************************************************************************/ +static int fts_remove(struct i2c_client *client) +{ + struct fts_data *data = dev_get_drvdata(&client->dev); + + watchdog_unregister_device(&data->wdd); + return 0; +} + +static int fts_probe(struct i2c_client *client, const struct i2c_device_id *id) +{ + u8 revision; + struct fts_data *data; + int err; + s8 deviceid; + struct device *hwmon_dev; + + if (client->addr != 0x73) + return -ENODEV; + + /* Baseboard Management Controller check */ + deviceid = i2c_smbus_read_byte_data(client, FTS_DEVICE_ID_REG); + if (deviceid > 0 && (deviceid & 0xF0) == 0x10) { + switch (deviceid & 0x0F) { + case 0x01: + break; + default: + dev_dbg(&client->dev, + "No Baseboard Management Controller\n"); + return -ENODEV; + } + } else { + dev_dbg(&client->dev, "No fujitsu board\n"); + return -ENODEV; + } + + data = devm_kzalloc(&client->dev, sizeof(struct fts_data), + GFP_KERNEL); + if (!data) + return -ENOMEM; + + mutex_init(&data->update_lock); + mutex_init(&data->access_lock); + data->client = client; + dev_set_drvdata(&client->dev, data); + + err = i2c_smbus_read_byte_data(client, FTS_DEVICE_REVISION_REG); + if (err < 0) + return err; + revision = err; + + hwmon_dev = devm_hwmon_device_register_with_groups(&client->dev, + "ftsteutates", + data, + fts_attr_groups); + if (IS_ERR(hwmon_dev)) + return PTR_ERR(hwmon_dev); + + err = fts_watchdog_init(data); + if (err) + return err; + + dev_info(&client->dev, "Detected FTS Teutates chip, revision: %d.%d\n", + (revision & 0xF0) >> 4, revision & 0x0F); + return 0; +} + +/*****************************************************************************/ +/* Module Details */ +/*****************************************************************************/ +static struct i2c_driver fts_driver = { + .driver = { + .name = "ftsteutates", + }, + .id_table = fts_id, + .probe = fts_probe, + .remove = fts_remove, +}; + +module_i2c_driver(fts_driver); + +MODULE_AUTHOR("Thilo Cestonaro "); +MODULE_DESCRIPTION("FTS Teutates driver"); +MODULE_LICENSE("GPL");