drivers/hid/hid-roccat-common.h

   1 #ifndef __HID_ROCCAT_COMMON_H
   2 #define __HID_ROCCAT_COMMON_H
   3
   4 /*
   5  * Copyright (c) 2011 Stefan Achatz <erazor_de@users.sourceforge.net>
   6  */
   7
   8 /*
   9  * This program is free software; you can redistribute it and/or modify it
  10  * under the terms of the GNU General Public License as published by the Free
  11  * Software Foundation; either version 2 of the License, or (at your option)
  12  * any later version.
  13  */
  14
  15 #include <linux/usb.h>
  16 #include <linux/types.h>
  17
  18 enum roccat_common2_commands {
  19         ROCCAT_COMMON_COMMAND_CONTROL = 0x4,
  20 };
  21
  22 struct roccat_common2_control {
  23         uint8_t command;
  24         uint8_t value;
  25         uint8_t request; /* always 0 on requesting write check */
  26 } __packed;
  27
  28 int roccat_common2_receive(struct usb_device *usb_dev, uint report_id,
  29                 void *data, uint size);
  30 int roccat_common2_send(struct usb_device *usb_dev, uint report_id,
  31                 void const *data, uint size);
  32 int roccat_common2_send_with_status(struct usb_device *usb_dev,
  33                 uint command, void const *buf, uint size);
  34
  35 struct roccat_common2_device {
  36         int roccat_claimed;
  37         int chrdev_minor;
  38         struct mutex lock;
  39 };
  40
  41 int roccat_common2_device_init_struct(struct usb_device *usb_dev,
  42                 struct roccat_common2_device *dev);
  43 ssize_t roccat_common2_sysfs_read(struct file *fp, struct kobject *kobj,
  44                 char *buf, loff_t off, size_t count,
  45                 size_t real_size, uint command);
  46 ssize_t roccat_common2_sysfs_write(struct file *fp, struct kobject *kobj,
  47                 void const *buf, loff_t off, size_t count,
  48                 size_t real_size, uint command);
  49
  50 #define ROCCAT_COMMON2_SYSFS_W(thingy, COMMAND, SIZE) \
  51 static ssize_t roccat_common2_sysfs_write_ ## thingy(struct file *fp, \
  52                 struct kobject *kobj, struct bin_attribute *attr, char *buf, \
  53                 loff_t off, size_t count) \
  54 { \
  55         return roccat_common2_sysfs_write(fp, kobj, buf, off, count, \
  56                         SIZE, COMMAND); \
  57 }
  58
  59 #define ROCCAT_COMMON2_SYSFS_R(thingy, COMMAND, SIZE) \
  60 static ssize_t roccat_common2_sysfs_read_ ## thingy(struct file *fp, \
  61                 struct kobject *kobj, struct bin_attribute *attr, char *buf, \
  62                 loff_t off, size_t count) \
  63 { \
  64         return roccat_common2_sysfs_read(fp, kobj, buf, off, count, \
  65                         SIZE, COMMAND); \
  66 }
  67
  68 #define ROCCAT_COMMON2_SYSFS_RW(thingy, COMMAND, SIZE) \
  69 ROCCAT_COMMON2_SYSFS_W(thingy, COMMAND, SIZE) \
  70 ROCCAT_COMMON2_SYSFS_R(thingy, COMMAND, SIZE)
  71
  72 #define ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(thingy, COMMAND, SIZE) \
  73 ROCCAT_COMMON2_SYSFS_RW(thingy, COMMAND, SIZE); \
  74 static struct bin_attribute bin_attr_ ## thingy = { \
  75         .attr = { .name = #thingy, .mode = 0660 }, \
  76         .size = SIZE, \
  77         .read = roccat_common2_sysfs_read_ ## thingy, \
  78         .write = roccat_common2_sysfs_write_ ## thingy \
  79 }
  80
  81 #define ROCCAT_COMMON2_BIN_ATTRIBUTE_R(thingy, COMMAND, SIZE) \
  82 ROCCAT_COMMON2_SYSFS_R(thingy, COMMAND, SIZE); \
  83 static struct bin_attribute bin_attr_ ## thingy = { \
  84         .attr = { .name = #thingy, .mode = 0440 }, \
  85         .size = SIZE, \
  86         .read = roccat_common2_sysfs_read_ ## thingy, \
  87 }
  88
  89 #define ROCCAT_COMMON2_BIN_ATTRIBUTE_W(thingy, COMMAND, SIZE) \
  90 ROCCAT_COMMON2_SYSFS_W(thingy, COMMAND, SIZE); \
  91 static struct bin_attribute bin_attr_ ## thingy = { \
  92         .attr = { .name = #thingy, .mode = 0220 }, \
  93         .size = SIZE, \
  94         .write = roccat_common2_sysfs_write_ ## thingy \
  95 }
  96
  97 #endif