LXR linux/drivers/hid/hid-roccat-common.h

   1/* SPDX-License-Identifier: GPL-2.0-or-later */
   2#ifndef __HID_ROCCAT_COMMON_H
   3#define __HID_ROCCAT_COMMON_H
   4
   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#endif
  95