diff options
author | Yana Esina <yana.esina@aquantia.com> | 2019-04-29 13:04:38 +0300 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2019-05-01 16:30:14 +0300 |
commit | 4c0131539fc0addeb2f44e9ebe4920dbc4ad408c (patch) | |
tree | 235d2cd43d6911138089766e67f94f6346460d71 /drivers/net | |
parent | 8f8940118654099ff549e16d77e65e476cccf1ae (diff) | |
download | linux-4c0131539fc0addeb2f44e9ebe4920dbc4ad408c.tar.xz |
net: aquantia: implement hwmon api for chip temperature
Added support for hwmon api to fetch out chip temperature
Signed-off-by: Yana Esina <yana.esina@aquantia.com>
Signed-off-by: Nikita Danilov <nikita.danilov@aquantia.com>
Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net')
4 files changed, 144 insertions, 0 deletions
diff --git a/drivers/net/ethernet/aquantia/atlantic/Makefile b/drivers/net/ethernet/aquantia/atlantic/Makefile index 4556630ee286..1f99cf832476 100644 --- a/drivers/net/ethernet/aquantia/atlantic/Makefile +++ b/drivers/net/ethernet/aquantia/atlantic/Makefile @@ -36,6 +36,7 @@ atlantic-objs := aq_main.o \ aq_ring.o \ aq_hw_utils.o \ aq_ethtool.o \ + aq_drvinfo.o \ aq_filters.o \ hw_atl/hw_atl_a0.o \ hw_atl/hw_atl_b0.o \ diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_drvinfo.c b/drivers/net/ethernet/aquantia/atlantic/aq_drvinfo.c new file mode 100644 index 000000000000..f5a92b2a5cd6 --- /dev/null +++ b/drivers/net/ethernet/aquantia/atlantic/aq_drvinfo.c @@ -0,0 +1,125 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* Copyright (C) 2014-2019 aQuantia Corporation. */ + +/* File aq_drvinfo.c: Definition of common code for firmware info in sys.*/ + +#include <linux/init.h> +#include <linux/kobject.h> +#include <linux/module.h> +#include <linux/stat.h> +#include <linux/string.h> +#include <linux/hwmon.h> +#include <linux/uaccess.h> + +#include "aq_drvinfo.h" + +static int aq_hwmon_read(struct device *dev, enum hwmon_sensor_types type, + u32 attr, int channel, long *value) +{ + struct aq_nic_s *aq_nic = dev_get_drvdata(dev); + int temp; + int err; + + if (!aq_nic) + return -EIO; + + if (type != hwmon_temp) + return -EOPNOTSUPP; + + if (!aq_nic->aq_fw_ops->get_phy_temp) + return -EOPNOTSUPP; + + switch (attr) { + case hwmon_temp_input: + err = aq_nic->aq_fw_ops->get_phy_temp(aq_nic->aq_hw, &temp); + *value = temp; + return err; + default: + return -EOPNOTSUPP; + } +} + +static int aq_hwmon_read_string(struct device *dev, + enum hwmon_sensor_types type, + u32 attr, int channel, const char **str) +{ + struct aq_nic_s *aq_nic = dev_get_drvdata(dev); + + if (!aq_nic) + return -EIO; + + if (type != hwmon_temp) + return -EOPNOTSUPP; + + if (!aq_nic->aq_fw_ops->get_phy_temp) + return -EOPNOTSUPP; + + switch (attr) { + case hwmon_temp_label: + *str = "PHY Temperature"; + return 0; + default: + return -EOPNOTSUPP; + } +} + +static umode_t aq_hwmon_is_visible(const void *data, + enum hwmon_sensor_types type, + u32 attr, int channel) +{ + if (type != hwmon_temp) + return 0; + + switch (attr) { + case hwmon_temp_input: + case hwmon_temp_label: + return 0444; + default: + return 0; + } +} + +static const struct hwmon_ops aq_hwmon_ops = { + .is_visible = aq_hwmon_is_visible, + .read = aq_hwmon_read, + .read_string = aq_hwmon_read_string, +}; + +static u32 aq_hwmon_temp_config[] = { + HWMON_T_INPUT | HWMON_T_LABEL, + 0, +}; + +static const struct hwmon_channel_info aq_hwmon_temp = { + .type = hwmon_temp, + .config = aq_hwmon_temp_config, +}; + +static const struct hwmon_channel_info *aq_hwmon_info[] = { + &aq_hwmon_temp, + NULL, +}; + +static const struct hwmon_chip_info aq_hwmon_chip_info = { + .ops = &aq_hwmon_ops, + .info = aq_hwmon_info, +}; + +int aq_drvinfo_init(struct net_device *ndev) +{ + struct aq_nic_s *aq_nic = netdev_priv(ndev); + struct device *dev = &aq_nic->pdev->dev; + struct device *hwmon_dev; + int err = 0; + + hwmon_dev = devm_hwmon_device_register_with_info(dev, + ndev->name, + aq_nic, + &aq_hwmon_chip_info, + NULL); + + if (IS_ERR(hwmon_dev)) + err = PTR_ERR(hwmon_dev); + + return err; +} diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_drvinfo.h b/drivers/net/ethernet/aquantia/atlantic/aq_drvinfo.h new file mode 100644 index 000000000000..41fbb1358068 --- /dev/null +++ b/drivers/net/ethernet/aquantia/atlantic/aq_drvinfo.h @@ -0,0 +1,15 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* Copyright (C) 2014-2017 aQuantia Corporation. */ + +/* File aq_drvinfo.h: Declaration of common code for firmware info in sys.*/ + +#ifndef AQ_DRVINFO_H +#define AQ_DRVINFO_H + +#include "aq_nic.h" +#include "aq_hw.h" +#include "hw_atl/hw_atl_utils.h" + +int aq_drvinfo_init(struct net_device *ndev); + +#endif /* AQ_DRVINFO_H */ diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_pci_func.c b/drivers/net/ethernet/aquantia/atlantic/aq_pci_func.c index 0217ff4669a4..533a78deefee 100644 --- a/drivers/net/ethernet/aquantia/atlantic/aq_pci_func.c +++ b/drivers/net/ethernet/aquantia/atlantic/aq_pci_func.c @@ -20,6 +20,7 @@ #include "hw_atl/hw_atl_a0.h" #include "hw_atl/hw_atl_b0.h" #include "aq_filters.h" +#include "aq_drvinfo.h" static const struct pci_device_id aq_pci_tbl[] = { { PCI_VDEVICE(AQUANTIA, AQ_DEVICE_ID_0001), }, @@ -289,6 +290,8 @@ static int aq_pci_probe(struct pci_dev *pdev, if (err < 0) goto err_register; + aq_drvinfo_init(ndev); + return 0; err_register: |