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1// SPDX-License-Identifier: GPL-2.0-only2/*3 * Copyright (C) 2021-2022 Digiteq Automotive4 * author: Martin Tuma <martin.tuma@digiteqautomotive.com>5 *6 * This module handles all the sysfs info/configuration that is related to the7 * PCI card device.8 */9 10#include <linux/device.h>11#include "mgb4_core.h"12#include "mgb4_sysfs.h"13 14static ssize_t module_version_show(struct device *dev,15 struct device_attribute *attr, char *buf)16{17 struct mgb4_dev *mgbdev = dev_get_drvdata(dev);18 19 return sprintf(buf, "%u\n", mgbdev->module_version & 0x0F);20}21 22static ssize_t module_type_show(struct device *dev,23 struct device_attribute *attr, char *buf)24{25 struct mgb4_dev *mgbdev = dev_get_drvdata(dev);26 27 return sprintf(buf, "%u\n", mgbdev->module_version >> 4);28}29 30static ssize_t fw_version_show(struct device *dev,31 struct device_attribute *attr, char *buf)32{33 struct mgb4_dev *mgbdev = dev_get_drvdata(dev);34 u32 config = mgb4_read_reg(&mgbdev->video, 0xC4);35 36 return sprintf(buf, "%u\n", config & 0xFFFF);37}38 39static ssize_t fw_type_show(struct device *dev,40 struct device_attribute *attr, char *buf)41{42 struct mgb4_dev *mgbdev = dev_get_drvdata(dev);43 u32 config = mgb4_read_reg(&mgbdev->video, 0xC4);44 45 return sprintf(buf, "%u\n", config >> 24);46}47 48static ssize_t serial_number_show(struct device *dev,49 struct device_attribute *attr, char *buf)50{51 struct mgb4_dev *mgbdev = dev_get_drvdata(dev);52 u32 sn = mgbdev->serial_number;53 54 return sprintf(buf, "%03d-%03d-%03d-%03d\n", sn >> 24, (sn >> 16) & 0xFF,55 (sn >> 8) & 0xFF, sn & 0xFF);56}57 58static DEVICE_ATTR_RO(module_version);59static DEVICE_ATTR_RO(module_type);60static DEVICE_ATTR_RO(fw_version);61static DEVICE_ATTR_RO(fw_type);62static DEVICE_ATTR_RO(serial_number);63 64struct attribute *mgb4_pci_attrs[] = {65 &dev_attr_module_type.attr,66 &dev_attr_module_version.attr,67 &dev_attr_fw_type.attr,68 &dev_attr_fw_version.attr,69 &dev_attr_serial_number.attr,70 NULL71};72