ui/spice-input.c

   1 /*
   2  * Copyright (C) 2010 Red Hat, Inc.
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public License as
   6  * published by the Free Software Foundation; either version 2 or
   7  * (at your option) version 3 of the License.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, see <http://www.gnu.org/licenses/>.
  16  */
  17
  18 #include <stdlib.h>
  19 #include <stdio.h>
  20 #include <stdbool.h>
  21 #include <string.h>
  22
  23 #include <spice.h>
  24 #include <spice/enums.h>
  25
  26 #include "qemu-common.h"
  27 #include "qemu-spice.h"
  28 #include "console.h"
  29
  30 /* keyboard bits */
  31
  32 typedef struct QemuSpiceKbd {
  33     SpiceKbdInstance sin;
  34     int ledstate;
  35 } QemuSpiceKbd;
  36
  37 static void kbd_push_key(SpiceKbdInstance *sin, uint8_t frag);
  38 static uint8_t kbd_get_leds(SpiceKbdInstance *sin);
  39 static void kbd_leds(void *opaque, int l);
  40
  41 static const SpiceKbdInterface kbd_interface = {
  42     .base.type          = SPICE_INTERFACE_KEYBOARD,
  43     .base.description   = "qemu keyboard",
  44     .base.major_version = SPICE_INTERFACE_KEYBOARD_MAJOR,
  45     .base.minor_version = SPICE_INTERFACE_KEYBOARD_MINOR,
  46     .push_scan_freg     = kbd_push_key,
  47     .get_leds           = kbd_get_leds,
  48 };
  49
  50 static void kbd_push_key(SpiceKbdInstance *sin, uint8_t frag)
  51 {
  52     kbd_put_keycode(frag);
  53 }
  54
  55 static uint8_t kbd_get_leds(SpiceKbdInstance *sin)
  56 {
  57     QemuSpiceKbd *kbd = container_of(sin, QemuSpiceKbd, sin);
  58     return kbd->ledstate;
  59 }
  60
  61 static void kbd_leds(void *opaque, int ledstate)
  62 {
  63     QemuSpiceKbd *kbd = opaque;
  64
  65     kbd->ledstate = 0;
  66     if (ledstate & QEMU_SCROLL_LOCK_LED) {
  67         kbd->ledstate |= SPICE_KEYBOARD_MODIFIER_FLAGS_SCROLL_LOCK;
  68     }
  69     if (ledstate & QEMU_NUM_LOCK_LED) {
  70         kbd->ledstate |= SPICE_KEYBOARD_MODIFIER_FLAGS_NUM_LOCK;
  71     }
  72     if (ledstate & QEMU_CAPS_LOCK_LED) {
  73         kbd->ledstate |= SPICE_KEYBOARD_MODIFIER_FLAGS_CAPS_LOCK;
  74     }
  75     spice_server_kbd_leds(&kbd->sin, ledstate);
  76 }
  77
  78 /* mouse bits */
  79
  80 typedef struct QemuSpicePointer {
  81     SpiceMouseInstance  mouse;
  82     SpiceTabletInstance tablet;
  83     int width, height, x, y;
  84     Notifier mouse_mode;
  85     bool absolute;
  86 } QemuSpicePointer;
  87
  88 static int map_buttons(int spice_buttons)
  89 {
  90     int qemu_buttons = 0;
  91
  92     /*
  93      * Note: SPICE_MOUSE_BUTTON_* specifies the wire protocol but this
  94      * isn't what we get passed in via interface callbacks for the
  95      * middle and right button ...
  96      */
  97     if (spice_buttons & SPICE_MOUSE_BUTTON_MASK_LEFT) {
  98         qemu_buttons |= MOUSE_EVENT_LBUTTON;
  99     }
 100     if (spice_buttons & 0x04 /* SPICE_MOUSE_BUTTON_MASK_MIDDLE */) {
 101         qemu_buttons |= MOUSE_EVENT_MBUTTON;
 102     }
 103     if (spice_buttons & 0x02 /* SPICE_MOUSE_BUTTON_MASK_RIGHT */) {
 104         qemu_buttons |= MOUSE_EVENT_RBUTTON;
 105     }
 106     return qemu_buttons;
 107 }
 108
 109 static void mouse_motion(SpiceMouseInstance *sin, int dx, int dy, int dz,
 110                          uint32_t buttons_state)
 111 {
 112     kbd_mouse_event(dx, dy, dz, map_buttons(buttons_state));
 113 }
 114
 115 static void mouse_buttons(SpiceMouseInstance *sin, uint32_t buttons_state)
 116 {
 117     kbd_mouse_event(0, 0, 0, map_buttons(buttons_state));
 118 }
 119
 120 static const SpiceMouseInterface mouse_interface = {
 121     .base.type          = SPICE_INTERFACE_MOUSE,
 122     .base.description   = "mouse",
 123     .base.major_version = SPICE_INTERFACE_MOUSE_MAJOR,
 124     .base.minor_version = SPICE_INTERFACE_MOUSE_MINOR,
 125     .motion             = mouse_motion,
 126     .buttons            = mouse_buttons,
 127 };
 128
 129 static void tablet_set_logical_size(SpiceTabletInstance* sin, int width, int height)
 130 {
 131     QemuSpicePointer *pointer = container_of(sin, QemuSpicePointer, tablet);
 132
 133     if (height < 16) {
 134         height = 16;
 135     }
 136     if (width < 16) {
 137         width = 16;
 138     }
 139     pointer->width  = width;
 140     pointer->height = height;
 141 }
 142
 143 static void tablet_position(SpiceTabletInstance* sin, int x, int y,
 144                             uint32_t buttons_state)
 145 {
 146     QemuSpicePointer *pointer = container_of(sin, QemuSpicePointer, tablet);
 147
 148     pointer->x = x * 0x7FFF / (pointer->width - 1);
 149     pointer->y = y * 0x7FFF / (pointer->height - 1);
 150     kbd_mouse_event(pointer->x, pointer->y, 0, map_buttons(buttons_state));
 151 }
 152
 153
 154 static void tablet_wheel(SpiceTabletInstance* sin, int wheel,
 155                          uint32_t buttons_state)
 156 {
 157     QemuSpicePointer *pointer = container_of(sin, QemuSpicePointer, tablet);
 158
 159     kbd_mouse_event(pointer->x, pointer->y, wheel, map_buttons(buttons_state));
 160 }
 161
 162 static void tablet_buttons(SpiceTabletInstance *sin,
 163                            uint32_t buttons_state)
 164 {
 165     QemuSpicePointer *pointer = container_of(sin, QemuSpicePointer, tablet);
 166
 167     kbd_mouse_event(pointer->x, pointer->y, 0, map_buttons(buttons_state));
 168 }
 169
 170 static const SpiceTabletInterface tablet_interface = {
 171     .base.type          = SPICE_INTERFACE_TABLET,
 172     .base.description   = "tablet",
 173     .base.major_version = SPICE_INTERFACE_TABLET_MAJOR,
 174     .base.minor_version = SPICE_INTERFACE_TABLET_MINOR,
 175     .set_logical_size   = tablet_set_logical_size,
 176     .position           = tablet_position,
 177     .wheel              = tablet_wheel,
 178     .buttons            = tablet_buttons,
 179 };
 180
 181 static void mouse_mode_notifier(Notifier *notifier)
 182 {
 183     QemuSpicePointer *pointer = container_of(notifier, QemuSpicePointer, mouse_mode);
 184     bool is_absolute  = kbd_mouse_is_absolute();
 185
 186     if (pointer->absolute == is_absolute) {
 187         return;
 188     }
 189
 190     if (is_absolute) {
 191         qemu_spice_add_interface(&pointer->tablet.base);
 192     } else {
 193         spice_server_remove_interface(&pointer->tablet.base);
 194     }
 195     pointer->absolute = is_absolute;
 196 }
 197
 198 void qemu_spice_input_init(void)
 199 {
 200     QemuSpiceKbd *kbd;
 201     QemuSpicePointer *pointer;
 202
 203     kbd = qemu_mallocz(sizeof(*kbd));
 204     kbd->sin.base.sif = &kbd_interface.base;
 205     qemu_spice_add_interface(&kbd->sin.base);
 206     qemu_add_led_event_handler(kbd_leds, kbd);
 207
 208     pointer = qemu_mallocz(sizeof(*pointer));
 209     pointer->mouse.base.sif  = &mouse_interface.base;
 210     pointer->tablet.base.sif = &tablet_interface.base;
 211     qemu_spice_add_interface(&pointer->mouse.base);
 212
 213     pointer->absolute = false;
 214     pointer->mouse_mode.notify = mouse_mode_notifier;
 215     qemu_add_mouse_mode_change_notifier(&pointer->mouse_mode);
 216     mouse_mode_notifier(&pointer->mouse_mode);
 217 }