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
  15 enum roccat_common2_commands {
  16         ROCCAT_COMMON_COMMAND_CONTROL = 0x4,
  17 };
  18
  19 struct roccat_common2_control {
  20         uint8_t command;
  21         uint8_t value;
  22         uint8_t request; /* always 0 on requesting write check */
  23 } __packed;
  24
  25 int roccat_common2_receive(struct usb_device *usb_dev, uint report_id,
  26                 void *data, uint size);
  27 int roccat_common2_send(struct usb_device *usb_dev, uint report_id,
  28                 void const *data, uint size);
  29 int roccat_common2_send_with_status(struct usb_device *usb_dev,
  30                 uint command, void const *buf, uint size);
  31
  32 struct roccat_common2_device {
  33         int roccat_claimed;
  34         int chrdev_minor;
  35         struct mutex lock;
  36 };
  37
  38 int roccat_common2_device_init_struct(struct usb_device *usb_dev,
  39                 struct roccat_common2_device *dev);
  40 ssize_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);
  43 ssize_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) \
  48 static 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) \
  57 static 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) \
  66 ROCCAT_COMMON2_SYSFS_W(thingy, COMMAND, SIZE) \
  67 ROCCAT_COMMON2_SYSFS_R(thingy, COMMAND, SIZE)
  68
  69 #define ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(thingy, COMMAND, SIZE) \
  70 ROCCAT_COMMON2_SYSFS_RW(thingy, COMMAND, SIZE); \
  71 static 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) \
  79 ROCCAT_COMMON2_SYSFS_R(thingy, COMMAND, SIZE); \
  80 static 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) \
  87 ROCCAT_COMMON2_SYSFS_W(thingy, COMMAND, SIZE); \
  88 static 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