95 lines · c
1/* SPDX-License-Identifier: GPL-2.0-or-later */2#ifndef __HID_ROCCAT_COMMON_H3#define __HID_ROCCAT_COMMON_H4 5/*6 * Copyright (c) 2011 Stefan Achatz <erazor_de@users.sourceforge.net>7 */8 9/*10 */11 12#include <linux/usb.h>13#include <linux/types.h>14 15enum roccat_common2_commands {16 ROCCAT_COMMON_COMMAND_CONTROL = 0x4,17};18 19struct roccat_common2_control {20 uint8_t command;21 uint8_t value;22 uint8_t request; /* always 0 on requesting write check */23} __packed;24 25int roccat_common2_receive(struct usb_device *usb_dev, uint report_id,26 void *data, uint size);27int roccat_common2_send(struct usb_device *usb_dev, uint report_id,28 void const *data, uint size);29int roccat_common2_send_with_status(struct usb_device *usb_dev,30 uint command, void const *buf, uint size);31 32struct roccat_common2_device {33 int roccat_claimed;34 int chrdev_minor;35 struct mutex lock;36};37 38int roccat_common2_device_init_struct(struct usb_device *usb_dev,39 struct roccat_common2_device *dev);40ssize_t roccat_common2_sysfs_read(struct file *fp, struct kobject *kobj,41 char *buf, loff_t off, size_t count,42 size_t real_size, uint command);43ssize_t roccat_common2_sysfs_write(struct file *fp, struct kobject *kobj,44 void const *buf, loff_t off, size_t count,45 size_t real_size, uint command);46 47#define ROCCAT_COMMON2_SYSFS_W(thingy, COMMAND, SIZE) \48static ssize_t roccat_common2_sysfs_write_ ## thingy(struct file *fp, \49 struct kobject *kobj, struct bin_attribute *attr, char *buf, \50 loff_t off, size_t count) \51{ \52 return roccat_common2_sysfs_write(fp, kobj, buf, off, count, \53 SIZE, COMMAND); \54}55 56#define ROCCAT_COMMON2_SYSFS_R(thingy, COMMAND, SIZE) \57static ssize_t roccat_common2_sysfs_read_ ## thingy(struct file *fp, \58 struct kobject *kobj, struct bin_attribute *attr, char *buf, \59 loff_t off, size_t count) \60{ \61 return roccat_common2_sysfs_read(fp, kobj, buf, off, count, \62 SIZE, COMMAND); \63}64 65#define ROCCAT_COMMON2_SYSFS_RW(thingy, COMMAND, SIZE) \66ROCCAT_COMMON2_SYSFS_W(thingy, COMMAND, SIZE) \67ROCCAT_COMMON2_SYSFS_R(thingy, COMMAND, SIZE)68 69#define ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(thingy, COMMAND, SIZE) \70ROCCAT_COMMON2_SYSFS_RW(thingy, COMMAND, SIZE); \71static struct bin_attribute bin_attr_ ## thingy = { \72 .attr = { .name = #thingy, .mode = 0660 }, \73 .size = SIZE, \74 .read = roccat_common2_sysfs_read_ ## thingy, \75 .write = roccat_common2_sysfs_write_ ## thingy \76}77 78#define ROCCAT_COMMON2_BIN_ATTRIBUTE_R(thingy, COMMAND, SIZE) \79ROCCAT_COMMON2_SYSFS_R(thingy, COMMAND, SIZE); \80static struct bin_attribute bin_attr_ ## thingy = { \81 .attr = { .name = #thingy, .mode = 0440 }, \82 .size = SIZE, \83 .read = roccat_common2_sysfs_read_ ## thingy, \84}85 86#define ROCCAT_COMMON2_BIN_ATTRIBUTE_W(thingy, COMMAND, SIZE) \87ROCCAT_COMMON2_SYSFS_W(thingy, COMMAND, SIZE); \88static struct bin_attribute bin_attr_ ## thingy = { \89 .attr = { .name = #thingy, .mode = 0220 }, \90 .size = SIZE, \91 .write = roccat_common2_sysfs_write_ ## thingy \92}93 94#endif95