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linux-4.9.59+gitAUTOINC+a75d8e9305-ga75d8e9305
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uinput.h

uinput.h 2.4 KB
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  1. /*
    2. 

  2.  *  User level driver support for input subsystem
    3. 

  3.  *
    4. 

  4.  * Heavily based on evdev.c by Vojtech Pavlik
    5. 

  5.  *
    6. 

  6.  * This program is free software; you can redistribute it and/or modify
    7. 

  7.  * it under the terms of the GNU General Public License as published by
    8. 

  8.  * the Free Software Foundation; either version 2 of the License, or
    9. 

  9.  * (at your option) any later version.
    10. 

  10.  *
    11. 

  11.  * This program is distributed in the hope that it will be useful,
    12. 

  12.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
    13. 

  13.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    14. 

  14.  * GNU General Public License for more details.
    15. 

  15.  *
    16. 

  16.  * You should have received a copy of the GNU General Public License
    17. 

  17.  * along with this program; if not, write to the Free Software
    18. 

  18.  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
    19. 

  19.  *
    20. 

  20.  * Author: Aristeu Sergio Rozanski Filho <aris@cathedrallabs.org>
    21. 

  21.  *
    22. 

  22.  * Changes/Revisions:
    23. 

  23.  *	0.5	08/13/2015 (David Herrmann <dh.herrmann@gmail.com> &
    24. 

  24.  *			    Benjamin Tissoires <benjamin.tissoires@redhat.com>)
    25. 

  25.  *		- add UI_DEV_SETUP ioctl
    26. 

  26.  *		- add UI_ABS_SETUP ioctl
    27. 

  27.  *		- add UI_GET_VERSION ioctl
    28. 

  28.  *	0.4	01/09/2014 (Benjamin Tissoires <benjamin.tissoires@redhat.com>)
    29. 

  29.  *		- add UI_GET_SYSNAME ioctl
    30. 

  30.  *	0.3	24/05/2006 (Anssi Hannula <anssi.hannulagmail.com>)
    31. 

  31.  *		- update ff support for the changes in kernel interface
    32. 

  32.  *		- add UINPUT_VERSION
    33. 

  33.  *	0.2	16/10/2004 (Micah Dowty <micah@navi.cx>)
    34. 

  34.  *		- added force feedback support
    35. 

  35.  *             - added UI_SET_PHYS
    36. 

  36.  *	0.1	20/06/2002
    37. 

  37.  *		- first public version
    38. 

  38.  */
    39. 

  39. #ifndef __UINPUT_H_
    40. 

  40. #define __UINPUT_H_
    41. 

  41. 

  42. #include <uapi/linux/uinput.h>
    43. 

  43. 

  44. #define UINPUT_NAME		"uinput"
    45. 

  45. #define UINPUT_BUFFER_SIZE	16
    46. 

  46. #define UINPUT_NUM_REQUESTS	16
    47. 

  47. 

  48. enum uinput_state { UIST_NEW_DEVICE, UIST_SETUP_COMPLETE, UIST_CREATED };
    49. 

  49. 

  50. struct uinput_request {
    51. 

  51. 	unsigned int		id;
    52. 

  52. 	unsigned int		code;	/* UI_FF_UPLOAD, UI_FF_ERASE */
    53. 

  53. 

  54. 	int			retval;
    55. 

  55. 	struct completion	done;
    56. 

  56. 

  57. 	union {
    58. 

  58. 		unsigned int	effect_id;
    59. 

  59. 		struct {
    60. 

  60. 			struct ff_effect *effect;
    61. 

  61. 			struct ff_effect *old;
    62. 

  62. 		} upload;
    63. 

  63. 	} u;
    64. 

  64. };
    65. 

  65. 

  66. struct uinput_device {
    67. 

  67. 	struct input_dev	*dev;
    68. 

  68. 	struct mutex		mutex;
    69. 

  69. 	enum uinput_state	state;
    70. 

  70. 	wait_queue_head_t	waitq;
    71. 

  71. 	unsigned char		ready;
    72. 

  72. 	unsigned char		head;
    73. 

  73. 	unsigned char		tail;
    74. 

  74. 	struct input_event	buff[UINPUT_BUFFER_SIZE];
    75. 

  75. 	unsigned int		ff_effects_max;
    76. 

  76. 

  77. 	struct uinput_request	*requests[UINPUT_NUM_REQUESTS];
    78. 

  78. 	wait_queue_head_t	requests_waitq;
    79. 

  79. 	spinlock_t		requests_lock;
    80. 

  80. };
    81. 

  81. #endif	/* __UINPUT_H_ */
    82.