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 "qemu/osdep.h"
  19
  20 #include <spice.h>
  21 #include <spice/enums.h>
  22
  23 #include "qemu-common.h"
  24 #include "ui/qemu-spice.h"
  25 #include "ui/console.h"
  26 #include "ui/keymaps.h"
  27 #include "ui/input.h"
  28
  29 /* keyboard bits */
  30
  31 typedef struct QemuSpiceKbd {
  32     SpiceKbdInstance sin;
  33     int ledstate;
  34     bool emul0;
  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 scancode)
  51 {
  52     QemuSpiceKbd *kbd = container_of(sin, QemuSpiceKbd, sin);
  53     int keycode;
  54     bool up;
  55
  56     if (scancode == SCANCODE_EMUL0) {
  57         kbd->emul0 = true;
  58         return;
  59     }
  60     keycode = scancode & ~SCANCODE_UP;
  61     up = scancode & SCANCODE_UP;
  62     if (kbd->emul0) {
  63         kbd->emul0 = false;
  64         keycode |= SCANCODE_GREY;
  65     }
  66
  67     qemu_input_event_send_key_number(NULL, keycode, !up);
  68 }
  69
  70 static uint8_t kbd_get_leds(SpiceKbdInstance *sin)
  71 {
  72     QemuSpiceKbd *kbd = container_of(sin, QemuSpiceKbd, sin);
  73     return kbd->ledstate;
  74 }
  75
  76 static void kbd_leds(void *opaque, int ledstate)
  77 {
  78     QemuSpiceKbd *kbd = opaque;
  79
  80     kbd->ledstate = 0;
  81     if (ledstate & QEMU_SCROLL_LOCK_LED) {
  82         kbd->ledstate |= SPICE_KEYBOARD_MODIFIER_FLAGS_SCROLL_LOCK;
  83     }
  84     if (ledstate & QEMU_NUM_LOCK_LED) {
  85         kbd->ledstate |= SPICE_KEYBOARD_MODIFIER_FLAGS_NUM_LOCK;
  86     }
  87     if (ledstate & QEMU_CAPS_LOCK_LED) {
  88         kbd->ledstate |= SPICE_KEYBOARD_MODIFIER_FLAGS_CAPS_LOCK;
  89     }
  90     spice_server_kbd_leds(&kbd->sin, kbd->ledstate);
  91 }
  92
  93 /* mouse bits */
  94
  95 typedef struct QemuSpicePointer {
  96     SpiceMouseInstance  mouse;
  97     SpiceTabletInstance tablet;
  98     int width, height;
  99     uint32_t last_bmask;
 100     Notifier mouse_mode;
 101     bool absolute;
 102 } QemuSpicePointer;
 103
 104 static void spice_update_buttons(QemuSpicePointer *pointer,
 105                                  int wheel, uint32_t button_mask)
 106 {
 107     static uint32_t bmap[INPUT_BUTTON__MAX] = {
 108         [INPUT_BUTTON_LEFT]        = 0x01,
 109         [INPUT_BUTTON_MIDDLE]      = 0x04,
 110         [INPUT_BUTTON_RIGHT]       = 0x02,
 111         [INPUT_BUTTON_WHEEL_UP]    = 0x10,
 112         [INPUT_BUTTON_WHEEL_DOWN]  = 0x20,
 113     };
 114
 115     if (wheel < 0) {
 116         button_mask |= 0x10;
 117     }
 118     if (wheel > 0) {
 119         button_mask |= 0x20;
 120     }
 121
 122     if (pointer->last_bmask == button_mask) {
 123         return;
 124     }
 125     qemu_input_update_buttons(NULL, bmap, pointer->last_bmask, button_mask);
 126     pointer->last_bmask = button_mask;
 127 }
 128
 129 static void mouse_motion(SpiceMouseInstance *sin, int dx, int dy, int dz,
 130                          uint32_t buttons_state)
 131 {
 132     QemuSpicePointer *pointer = container_of(sin, QemuSpicePointer, mouse);
 133     spice_update_buttons(pointer, dz, buttons_state);
 134     qemu_input_queue_rel(NULL, INPUT_AXIS_X, dx);
 135     qemu_input_queue_rel(NULL, INPUT_AXIS_Y, dy);
 136     qemu_input_event_sync();
 137 }
 138
 139 static void mouse_buttons(SpiceMouseInstance *sin, uint32_t buttons_state)
 140 {
 141     QemuSpicePointer *pointer = container_of(sin, QemuSpicePointer, mouse);
 142     spice_update_buttons(pointer, 0, buttons_state);
 143     qemu_input_event_sync();
 144 }
 145
 146 static const SpiceMouseInterface mouse_interface = {
 147     .base.type          = SPICE_INTERFACE_MOUSE,
 148     .base.description   = "mouse",
 149     .base.major_version = SPICE_INTERFACE_MOUSE_MAJOR,
 150     .base.minor_version = SPICE_INTERFACE_MOUSE_MINOR,
 151     .motion             = mouse_motion,
 152     .buttons            = mouse_buttons,
 153 };
 154
 155 static void tablet_set_logical_size(SpiceTabletInstance* sin, int width, int height)
 156 {
 157     QemuSpicePointer *pointer = container_of(sin, QemuSpicePointer, tablet);
 158
 159     if (height < 16) {
 160         height = 16;
 161     }
 162     if (width < 16) {
 163         width = 16;
 164     }
 165     pointer->width  = width;
 166     pointer->height = height;
 167 }
 168
 169 static void tablet_position(SpiceTabletInstance* sin, int x, int y,
 170                             uint32_t buttons_state)
 171 {
 172     QemuSpicePointer *pointer = container_of(sin, QemuSpicePointer, tablet);
 173
 174     spice_update_buttons(pointer, 0, buttons_state);
 175     qemu_input_queue_abs(NULL, INPUT_AXIS_X, x, 0, pointer->width);
 176     qemu_input_queue_abs(NULL, INPUT_AXIS_Y, y, 0, pointer->height);
 177     qemu_input_event_sync();
 178 }
 179
 180
 181 static void tablet_wheel(SpiceTabletInstance* sin, int wheel,
 182                          uint32_t buttons_state)
 183 {
 184     QemuSpicePointer *pointer = container_of(sin, QemuSpicePointer, tablet);
 185
 186     spice_update_buttons(pointer, wheel, buttons_state);
 187     qemu_input_event_sync();
 188 }
 189
 190 static void tablet_buttons(SpiceTabletInstance *sin,
 191                            uint32_t buttons_state)
 192 {
 193     QemuSpicePointer *pointer = container_of(sin, QemuSpicePointer, tablet);
 194
 195     spice_update_buttons(pointer, 0, buttons_state);
 196     qemu_input_event_sync();
 197 }
 198
 199 static const SpiceTabletInterface tablet_interface = {
 200     .base.type          = SPICE_INTERFACE_TABLET,
 201     .base.description   = "tablet",
 202     .base.major_version = SPICE_INTERFACE_TABLET_MAJOR,
 203     .base.minor_version = SPICE_INTERFACE_TABLET_MINOR,
 204     .set_logical_size   = tablet_set_logical_size,
 205     .position           = tablet_position,
 206     .wheel              = tablet_wheel,
 207     .buttons            = tablet_buttons,
 208 };
 209
 210 static void mouse_mode_notifier(Notifier *notifier, void *data)
 211 {
 212     QemuSpicePointer *pointer = container_of(notifier, QemuSpicePointer, mouse_mode);
 213     bool is_absolute  = qemu_input_is_absolute();
 214
 215     if (pointer->absolute == is_absolute) {
 216         return;
 217     }
 218
 219     if (is_absolute) {
 220         qemu_spice_add_interface(&pointer->tablet.base);
 221     } else {
 222         spice_server_remove_interface(&pointer->tablet.base);
 223     }
 224     pointer->absolute = is_absolute;
 225 }
 226
 227 void qemu_spice_input_init(void)
 228 {
 229     QemuSpiceKbd *kbd;
 230     QemuSpicePointer *pointer;
 231
 232     kbd = g_malloc0(sizeof(*kbd));
 233     kbd->sin.base.sif = &kbd_interface.base;
 234     qemu_spice_add_interface(&kbd->sin.base);
 235     qemu_add_led_event_handler(kbd_leds, kbd);
 236
 237     pointer = g_malloc0(sizeof(*pointer));
 238     pointer->mouse.base.sif  = &mouse_interface.base;
 239     pointer->tablet.base.sif = &tablet_interface.base;
 240     qemu_spice_add_interface(&pointer->mouse.base);
 241
 242     pointer->absolute = false;
 243     pointer->mouse_mode.notify = mouse_mode_notifier;
 244     qemu_add_mouse_mode_change_notifier(&pointer->mouse_mode);
 245     mouse_mode_notifier(&pointer->mouse_mode, NULL);
 246 }