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// SPDX-License-Identifier: GPL-2.0
/*
* Intel MAX 10 Board Management Controller chip - common code
*
* Copyright (C) 2018-2020 Intel Corporation. All rights reserved.
*/
#include <linux/bitfield.h>
#include <linux/device.h>
#include <linux/dev_printk.h>
#include <linux/mfd/core.h>
#include <linux/mfd/intel-m10-bmc.h>
#include <linux/module.h>
static ssize_t bmc_version_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct intel_m10bmc *ddata = dev_get_drvdata(dev);
unsigned int val;
int ret;
ret = m10bmc_sys_read(ddata, ddata->info->csr_map->build_version, &val);
if (ret)
return ret;
return sprintf(buf, "0x%x\n", val);
}
static DEVICE_ATTR_RO(bmc_version);
static ssize_t bmcfw_version_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct intel_m10bmc *ddata = dev_get_drvdata(dev);
unsigned int val;
int ret;
ret = m10bmc_sys_read(ddata, ddata->info->csr_map->fw_version, &val);
if (ret)
return ret;
return sprintf(buf, "0x%x\n", val);
}
static DEVICE_ATTR_RO(bmcfw_version);
static ssize_t mac_address_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct intel_m10bmc *ddata = dev_get_drvdata(dev);
unsigned int macaddr_low, macaddr_high;
int ret;
ret = m10bmc_sys_read(ddata, ddata->info->csr_map->mac_low, &macaddr_low);
if (ret)
return ret;
ret = m10bmc_sys_read(ddata, ddata->info->csr_map->mac_high, &macaddr_high);
if (ret)
return ret;
return sysfs_emit(buf, "%02x:%02x:%02x:%02x:%02x:%02x\n",
(u8)FIELD_GET(M10BMC_MAC_BYTE1, macaddr_low),
(u8)FIELD_GET(M10BMC_MAC_BYTE2, macaddr_low),
(u8)FIELD_GET(M10BMC_MAC_BYTE3, macaddr_low),
(u8)FIELD_GET(M10BMC_MAC_BYTE4, macaddr_low),
(u8)FIELD_GET(M10BMC_MAC_BYTE5, macaddr_high),
(u8)FIELD_GET(M10BMC_MAC_BYTE6, macaddr_high));
}
static DEVICE_ATTR_RO(mac_address);
static ssize_t mac_count_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct intel_m10bmc *ddata = dev_get_drvdata(dev);
unsigned int macaddr_high;
int ret;
ret = m10bmc_sys_read(ddata, ddata->info->csr_map->mac_high, &macaddr_high);
if (ret)
return ret;
return sysfs_emit(buf, "%u\n", (u8)FIELD_GET(M10BMC_MAC_COUNT, macaddr_high));
}
static DEVICE_ATTR_RO(mac_count);
static struct attribute *m10bmc_attrs[] = {
&dev_attr_bmc_version.attr,
&dev_attr_bmcfw_version.attr,
&dev_attr_mac_address.attr,
&dev_attr_mac_count.attr,
NULL,
};
static const struct attribute_group m10bmc_group = {
.attrs = m10bmc_attrs,
};
const struct attribute_group *m10bmc_dev_groups[] = {
&m10bmc_group,
NULL,
};
EXPORT_SYMBOL_GPL(m10bmc_dev_groups);
int m10bmc_dev_init(struct intel_m10bmc *m10bmc, const struct intel_m10bmc_platform_info *info)
{
int ret;
m10bmc->info = info;
dev_set_drvdata(m10bmc->dev, m10bmc);
ret = devm_mfd_add_devices(m10bmc->dev, PLATFORM_DEVID_AUTO,
info->cells, info->n_cells,
NULL, 0, NULL);
if (ret)
dev_err(m10bmc->dev, "Failed to register sub-devices: %d\n", ret);
return ret;
}
EXPORT_SYMBOL_GPL(m10bmc_dev_init);
MODULE_DESCRIPTION("Intel MAX 10 BMC core driver");
MODULE_AUTHOR("Intel Corporation");
MODULE_LICENSE("GPL v2");
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