6ba0e7b36c
Add z-axis motion to pointer events. Backward compatible, because there's space for the z-axis in union xenkbd_in_event, and old backends zero it. Derived from http://xenbits.xensource.com/linux-2.6.18-xen.hg?rev/57dfe0098000 http://xenbits.xensource.com/linux-2.6.18-xen.hg?rev/1edfea26a2a9 http://xenbits.xensource.com/linux-2.6.18-xen.hg?rev/c3ff0b26f664 Signed-off-by: Pat Campbell <plc@novell.com> Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
116 lines
3.6 KiB
C
116 lines
3.6 KiB
C
/*
|
|
* kbdif.h -- Xen virtual keyboard/mouse
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
* of this software and associated documentation files (the "Software"), to
|
|
* deal in the Software without restriction, including without limitation the
|
|
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
|
|
* sell copies of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
|
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
|
* DEALINGS IN THE SOFTWARE.
|
|
*
|
|
* Copyright (C) 2005 Anthony Liguori <aliguori@us.ibm.com>
|
|
* Copyright (C) 2006 Red Hat, Inc., Markus Armbruster <armbru@redhat.com>
|
|
*/
|
|
|
|
#ifndef __XEN_PUBLIC_IO_KBDIF_H__
|
|
#define __XEN_PUBLIC_IO_KBDIF_H__
|
|
|
|
/* In events (backend -> frontend) */
|
|
|
|
/*
|
|
* Frontends should ignore unknown in events.
|
|
*/
|
|
|
|
/* Pointer movement event */
|
|
#define XENKBD_TYPE_MOTION 1
|
|
/* Event type 2 currently not used */
|
|
/* Key event (includes pointer buttons) */
|
|
#define XENKBD_TYPE_KEY 3
|
|
/*
|
|
* Pointer position event
|
|
* Capable backend sets feature-abs-pointer in xenstore.
|
|
* Frontend requests ot instead of XENKBD_TYPE_MOTION by setting
|
|
* request-abs-update in xenstore.
|
|
*/
|
|
#define XENKBD_TYPE_POS 4
|
|
|
|
struct xenkbd_motion {
|
|
uint8_t type; /* XENKBD_TYPE_MOTION */
|
|
int32_t rel_x; /* relative X motion */
|
|
int32_t rel_y; /* relative Y motion */
|
|
int32_t rel_z; /* relative Z motion (wheel) */
|
|
};
|
|
|
|
struct xenkbd_key {
|
|
uint8_t type; /* XENKBD_TYPE_KEY */
|
|
uint8_t pressed; /* 1 if pressed; 0 otherwise */
|
|
uint32_t keycode; /* KEY_* from linux/input.h */
|
|
};
|
|
|
|
struct xenkbd_position {
|
|
uint8_t type; /* XENKBD_TYPE_POS */
|
|
int32_t abs_x; /* absolute X position (in FB pixels) */
|
|
int32_t abs_y; /* absolute Y position (in FB pixels) */
|
|
int32_t rel_z; /* relative Z motion (wheel) */
|
|
};
|
|
|
|
#define XENKBD_IN_EVENT_SIZE 40
|
|
|
|
union xenkbd_in_event {
|
|
uint8_t type;
|
|
struct xenkbd_motion motion;
|
|
struct xenkbd_key key;
|
|
struct xenkbd_position pos;
|
|
char pad[XENKBD_IN_EVENT_SIZE];
|
|
};
|
|
|
|
/* Out events (frontend -> backend) */
|
|
|
|
/*
|
|
* Out events may be sent only when requested by backend, and receipt
|
|
* of an unknown out event is an error.
|
|
* No out events currently defined.
|
|
*/
|
|
|
|
#define XENKBD_OUT_EVENT_SIZE 40
|
|
|
|
union xenkbd_out_event {
|
|
uint8_t type;
|
|
char pad[XENKBD_OUT_EVENT_SIZE];
|
|
};
|
|
|
|
/* shared page */
|
|
|
|
#define XENKBD_IN_RING_SIZE 2048
|
|
#define XENKBD_IN_RING_LEN (XENKBD_IN_RING_SIZE / XENKBD_IN_EVENT_SIZE)
|
|
#define XENKBD_IN_RING_OFFS 1024
|
|
#define XENKBD_IN_RING(page) \
|
|
((union xenkbd_in_event *)((char *)(page) + XENKBD_IN_RING_OFFS))
|
|
#define XENKBD_IN_RING_REF(page, idx) \
|
|
(XENKBD_IN_RING((page))[(idx) % XENKBD_IN_RING_LEN])
|
|
|
|
#define XENKBD_OUT_RING_SIZE 1024
|
|
#define XENKBD_OUT_RING_LEN (XENKBD_OUT_RING_SIZE / XENKBD_OUT_EVENT_SIZE)
|
|
#define XENKBD_OUT_RING_OFFS (XENKBD_IN_RING_OFFS + XENKBD_IN_RING_SIZE)
|
|
#define XENKBD_OUT_RING(page) \
|
|
((union xenkbd_out_event *)((char *)(page) + XENKBD_OUT_RING_OFFS))
|
|
#define XENKBD_OUT_RING_REF(page, idx) \
|
|
(XENKBD_OUT_RING((page))[(idx) % XENKBD_OUT_RING_LEN])
|
|
|
|
struct xenkbd_page {
|
|
uint32_t in_cons, in_prod;
|
|
uint32_t out_cons, out_prod;
|
|
};
|
|
|
|
#endif
|