LCOV - code coverage report
Current view: top level - lkbce/include/linux - hidraw.h (source / functions) Hit Total Coverage
Test: coverage.info Lines: 3 5 60.0 %
Date: 2017-01-25 Functions: 2 5 40.0 %

          Line data    Source code
       1             : #ifndef _HIDRAW_H
       2             : #define _HIDRAW_H
       3             : 
       4             : /*
       5             :  *  Copyright (c) 2007 Jiri Kosina
       6             :  */
       7             : 
       8             : /*
       9             :  * This program is free software; you can redistribute it and/or modify it
      10             :  * under the terms and conditions of the GNU General Public License,
      11             :  * version 2, as published by the Free Software Foundation.
      12             :  *
      13             :  * You should have received a copy of the GNU General Public License along with
      14             :  * this program; if not, write to the Free Software Foundation, Inc.,
      15             :  * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
      16             :  */
      17             : 
      18             : #include <linux/hid.h>
      19             : #include <linux/types.h>
      20             : 
      21             : struct hidraw_report_descriptor {
      22             :         __u32 size;
      23             :         __u8 value[HID_MAX_DESCRIPTOR_SIZE];
      24             : };
      25             : 
      26             : struct hidraw_devinfo {
      27             :         __u32 bustype;
      28             :         __s16 vendor;
      29             :         __s16 product;
      30             : };
      31           1 : 
      32             : /* ioctl interface */
      33             : #define HIDIOCGRDESCSIZE        _IOR('H', 0x01, int)
      34             : #define HIDIOCGRDESC            _IOR('H', 0x02, struct hidraw_report_descriptor)
      35             : #define HIDIOCGRAWINFO          _IOR('H', 0x03, struct hidraw_devinfo)
      36             : #define HIDIOCGRAWNAME(len)     _IOC(_IOC_READ, 'H', 0x04, len)
      37             : #define HIDIOCGRAWPHYS(len)     _IOC(_IOC_READ, 'H', 0x05, len)
      38             : 
      39             : #define HIDRAW_FIRST_MINOR 0
      40             : #define HIDRAW_MAX_DEVICES 64
      41             : /* number of reports to buffer */
      42             : #define HIDRAW_BUFFER_SIZE 64
      43             : 
      44             : 
      45             : /* kernel-only API declarations */
      46             : #ifdef __KERNEL__
      47             : 
      48             : struct hidraw {
      49             :         unsigned int minor;
      50             :         int exist;
      51             :         int open;
      52             :         wait_queue_head_t wait;
      53             :         struct hid_device *hid;
      54             :         struct device *dev;
      55             :         struct list_head list;
      56             : };
      57             : 
      58             : struct hidraw_report {
      59             :         __u8 *value;
      60             :         int len;
      61             : };
      62             : 
      63             : struct hidraw_list {
      64             :         struct hidraw_report buffer[HIDRAW_BUFFER_SIZE];
      65             :         int head;
      66             :         int tail;
      67             :         struct fasync_struct *fasync;
      68             :         struct hidraw *hidraw;
      69             :         struct list_head node;
      70             :         struct mutex read_mutex;
      71             : };
      72             : 
      73             : #ifdef CONFIG_HIDRAW
      74             : int hidraw_init(void);
      75             : void hidraw_exit(void);
      76             : void hidraw_report_event(struct hid_device *, u8 *, int);
      77             : int hidraw_connect(struct hid_device *);
      78             : void hidraw_disconnect(struct hid_device *);
      79             : #else
      80           1 : static inline int hidraw_init(void) { return 0; }
      81             : static inline void hidraw_exit(void) { }
      82             : static inline void hidraw_report_event(struct hid_device *hid, u8 *data, int len) { }
      83           2 : static inline int hidraw_connect(struct hid_device *hid) { return -1; }
      84           0 : static inline void hidraw_disconnect(struct hid_device *hid) { }
      85             : #endif
      86           0 : 
      87             : #endif
      88             : 
      89             : #endif

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