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-rw-r--r--qemu/hw/input/virtio-input-hid.c514
1 files changed, 514 insertions, 0 deletions
diff --git a/qemu/hw/input/virtio-input-hid.c b/qemu/hw/input/virtio-input-hid.c
new file mode 100644
index 000000000..4d85dad4d
--- /dev/null
+++ b/qemu/hw/input/virtio-input-hid.c
@@ -0,0 +1,514 @@
+/*
+ * This work is licensed under the terms of the GNU GPL, version 2 or
+ * (at your option) any later version. See the COPYING file in the
+ * top-level directory.
+ */
+
+#include "qemu/iov.h"
+
+#include "hw/qdev.h"
+#include "hw/virtio/virtio.h"
+#include "hw/virtio/virtio-input.h"
+
+#undef CONFIG_CURSES
+#include "ui/console.h"
+
+#include "standard-headers/linux/input.h"
+
+#define VIRTIO_ID_NAME_KEYBOARD "QEMU Virtio Keyboard"
+#define VIRTIO_ID_NAME_MOUSE "QEMU Virtio Mouse"
+#define VIRTIO_ID_NAME_TABLET "QEMU Virtio Tablet"
+
+/* ----------------------------------------------------------------- */
+
+static const unsigned int keymap_qcode[Q_KEY_CODE_MAX] = {
+ [Q_KEY_CODE_ESC] = KEY_ESC,
+ [Q_KEY_CODE_1] = KEY_1,
+ [Q_KEY_CODE_2] = KEY_2,
+ [Q_KEY_CODE_3] = KEY_3,
+ [Q_KEY_CODE_4] = KEY_4,
+ [Q_KEY_CODE_5] = KEY_5,
+ [Q_KEY_CODE_6] = KEY_6,
+ [Q_KEY_CODE_7] = KEY_7,
+ [Q_KEY_CODE_8] = KEY_8,
+ [Q_KEY_CODE_9] = KEY_9,
+ [Q_KEY_CODE_0] = KEY_0,
+ [Q_KEY_CODE_MINUS] = KEY_MINUS,
+ [Q_KEY_CODE_EQUAL] = KEY_EQUAL,
+ [Q_KEY_CODE_BACKSPACE] = KEY_BACKSPACE,
+
+ [Q_KEY_CODE_TAB] = KEY_TAB,
+ [Q_KEY_CODE_Q] = KEY_Q,
+ [Q_KEY_CODE_W] = KEY_W,
+ [Q_KEY_CODE_E] = KEY_E,
+ [Q_KEY_CODE_R] = KEY_R,
+ [Q_KEY_CODE_T] = KEY_T,
+ [Q_KEY_CODE_Y] = KEY_Y,
+ [Q_KEY_CODE_U] = KEY_U,
+ [Q_KEY_CODE_I] = KEY_I,
+ [Q_KEY_CODE_O] = KEY_O,
+ [Q_KEY_CODE_P] = KEY_P,
+ [Q_KEY_CODE_BRACKET_LEFT] = KEY_LEFTBRACE,
+ [Q_KEY_CODE_BRACKET_RIGHT] = KEY_RIGHTBRACE,
+ [Q_KEY_CODE_RET] = KEY_ENTER,
+
+ [Q_KEY_CODE_CTRL] = KEY_LEFTCTRL,
+ [Q_KEY_CODE_A] = KEY_A,
+ [Q_KEY_CODE_S] = KEY_S,
+ [Q_KEY_CODE_D] = KEY_D,
+ [Q_KEY_CODE_F] = KEY_F,
+ [Q_KEY_CODE_G] = KEY_G,
+ [Q_KEY_CODE_H] = KEY_H,
+ [Q_KEY_CODE_J] = KEY_J,
+ [Q_KEY_CODE_K] = KEY_K,
+ [Q_KEY_CODE_L] = KEY_L,
+ [Q_KEY_CODE_SEMICOLON] = KEY_SEMICOLON,
+ [Q_KEY_CODE_APOSTROPHE] = KEY_APOSTROPHE,
+ [Q_KEY_CODE_GRAVE_ACCENT] = KEY_GRAVE,
+
+ [Q_KEY_CODE_SHIFT] = KEY_LEFTSHIFT,
+ [Q_KEY_CODE_BACKSLASH] = KEY_BACKSLASH,
+ [Q_KEY_CODE_LESS] = KEY_102ND,
+ [Q_KEY_CODE_Z] = KEY_Z,
+ [Q_KEY_CODE_X] = KEY_X,
+ [Q_KEY_CODE_C] = KEY_C,
+ [Q_KEY_CODE_V] = KEY_V,
+ [Q_KEY_CODE_B] = KEY_B,
+ [Q_KEY_CODE_N] = KEY_N,
+ [Q_KEY_CODE_M] = KEY_M,
+ [Q_KEY_CODE_COMMA] = KEY_COMMA,
+ [Q_KEY_CODE_DOT] = KEY_DOT,
+ [Q_KEY_CODE_SLASH] = KEY_SLASH,
+ [Q_KEY_CODE_SHIFT_R] = KEY_RIGHTSHIFT,
+
+ [Q_KEY_CODE_ALT] = KEY_LEFTALT,
+ [Q_KEY_CODE_SPC] = KEY_SPACE,
+ [Q_KEY_CODE_CAPS_LOCK] = KEY_CAPSLOCK,
+
+ [Q_KEY_CODE_F1] = KEY_F1,
+ [Q_KEY_CODE_F2] = KEY_F2,
+ [Q_KEY_CODE_F3] = KEY_F3,
+ [Q_KEY_CODE_F4] = KEY_F4,
+ [Q_KEY_CODE_F5] = KEY_F5,
+ [Q_KEY_CODE_F6] = KEY_F6,
+ [Q_KEY_CODE_F7] = KEY_F7,
+ [Q_KEY_CODE_F8] = KEY_F8,
+ [Q_KEY_CODE_F9] = KEY_F9,
+ [Q_KEY_CODE_F10] = KEY_F10,
+ [Q_KEY_CODE_NUM_LOCK] = KEY_NUMLOCK,
+ [Q_KEY_CODE_SCROLL_LOCK] = KEY_SCROLLLOCK,
+
+ [Q_KEY_CODE_KP_0] = KEY_KP0,
+ [Q_KEY_CODE_KP_1] = KEY_KP1,
+ [Q_KEY_CODE_KP_2] = KEY_KP2,
+ [Q_KEY_CODE_KP_3] = KEY_KP3,
+ [Q_KEY_CODE_KP_4] = KEY_KP4,
+ [Q_KEY_CODE_KP_5] = KEY_KP5,
+ [Q_KEY_CODE_KP_6] = KEY_KP6,
+ [Q_KEY_CODE_KP_7] = KEY_KP7,
+ [Q_KEY_CODE_KP_8] = KEY_KP8,
+ [Q_KEY_CODE_KP_9] = KEY_KP9,
+ [Q_KEY_CODE_KP_SUBTRACT] = KEY_KPMINUS,
+ [Q_KEY_CODE_KP_ADD] = KEY_KPPLUS,
+ [Q_KEY_CODE_KP_DECIMAL] = KEY_KPDOT,
+ [Q_KEY_CODE_KP_ENTER] = KEY_KPENTER,
+ [Q_KEY_CODE_KP_DIVIDE] = KEY_KPSLASH,
+ [Q_KEY_CODE_KP_MULTIPLY] = KEY_KPASTERISK,
+
+ [Q_KEY_CODE_F11] = KEY_F11,
+ [Q_KEY_CODE_F12] = KEY_F12,
+
+ [Q_KEY_CODE_CTRL_R] = KEY_RIGHTCTRL,
+ [Q_KEY_CODE_SYSRQ] = KEY_SYSRQ,
+ [Q_KEY_CODE_ALT_R] = KEY_RIGHTALT,
+
+ [Q_KEY_CODE_HOME] = KEY_HOME,
+ [Q_KEY_CODE_UP] = KEY_UP,
+ [Q_KEY_CODE_PGUP] = KEY_PAGEUP,
+ [Q_KEY_CODE_LEFT] = KEY_LEFT,
+ [Q_KEY_CODE_RIGHT] = KEY_RIGHT,
+ [Q_KEY_CODE_END] = KEY_END,
+ [Q_KEY_CODE_DOWN] = KEY_DOWN,
+ [Q_KEY_CODE_PGDN] = KEY_PAGEDOWN,
+ [Q_KEY_CODE_INSERT] = KEY_INSERT,
+ [Q_KEY_CODE_DELETE] = KEY_DELETE,
+
+ [Q_KEY_CODE_META_L] = KEY_LEFTMETA,
+ [Q_KEY_CODE_META_R] = KEY_RIGHTMETA,
+ [Q_KEY_CODE_MENU] = KEY_MENU,
+};
+
+static const unsigned int keymap_button[INPUT_BUTTON_MAX] = {
+ [INPUT_BUTTON_LEFT] = BTN_LEFT,
+ [INPUT_BUTTON_RIGHT] = BTN_RIGHT,
+ [INPUT_BUTTON_MIDDLE] = BTN_MIDDLE,
+ [INPUT_BUTTON_WHEEL_UP] = BTN_GEAR_UP,
+ [INPUT_BUTTON_WHEEL_DOWN] = BTN_GEAR_DOWN,
+};
+
+static const unsigned int axismap_rel[INPUT_AXIS_MAX] = {
+ [INPUT_AXIS_X] = REL_X,
+ [INPUT_AXIS_Y] = REL_Y,
+};
+
+static const unsigned int axismap_abs[INPUT_AXIS_MAX] = {
+ [INPUT_AXIS_X] = ABS_X,
+ [INPUT_AXIS_Y] = ABS_Y,
+};
+
+/* ----------------------------------------------------------------- */
+
+static void virtio_input_key_config(VirtIOInput *vinput,
+ const unsigned int *keymap,
+ size_t mapsize)
+{
+ virtio_input_config keys;
+ int i, bit, byte, bmax = 0;
+
+ memset(&keys, 0, sizeof(keys));
+ for (i = 0; i < mapsize; i++) {
+ bit = keymap[i];
+ if (!bit) {
+ continue;
+ }
+ byte = bit / 8;
+ bit = bit % 8;
+ keys.u.bitmap[byte] |= (1 << bit);
+ if (bmax < byte+1) {
+ bmax = byte+1;
+ }
+ }
+ keys.select = VIRTIO_INPUT_CFG_EV_BITS;
+ keys.subsel = EV_KEY;
+ keys.size = bmax;
+ virtio_input_add_config(vinput, &keys);
+}
+
+static void virtio_input_handle_event(DeviceState *dev, QemuConsole *src,
+ InputEvent *evt)
+{
+ VirtIOInput *vinput = VIRTIO_INPUT(dev);
+ virtio_input_event event;
+ int qcode;
+
+ switch (evt->kind) {
+ case INPUT_EVENT_KIND_KEY:
+ qcode = qemu_input_key_value_to_qcode(evt->key->key);
+ if (qcode && keymap_qcode[qcode]) {
+ event.type = cpu_to_le16(EV_KEY);
+ event.code = cpu_to_le16(keymap_qcode[qcode]);
+ event.value = cpu_to_le32(evt->key->down ? 1 : 0);
+ virtio_input_send(vinput, &event);
+ } else {
+ if (evt->key->down) {
+ fprintf(stderr, "%s: unmapped key: %d [%s]\n", __func__,
+ qcode, QKeyCode_lookup[qcode]);
+ }
+ }
+ break;
+ case INPUT_EVENT_KIND_BTN:
+ if (keymap_button[evt->btn->button]) {
+ event.type = cpu_to_le16(EV_KEY);
+ event.code = cpu_to_le16(keymap_button[evt->btn->button]);
+ event.value = cpu_to_le32(evt->btn->down ? 1 : 0);
+ virtio_input_send(vinput, &event);
+ } else {
+ if (evt->btn->down) {
+ fprintf(stderr, "%s: unmapped button: %d [%s]\n", __func__,
+ evt->btn->button, InputButton_lookup[evt->btn->button]);
+ }
+ }
+ break;
+ case INPUT_EVENT_KIND_REL:
+ event.type = cpu_to_le16(EV_REL);
+ event.code = cpu_to_le16(axismap_rel[evt->rel->axis]);
+ event.value = cpu_to_le32(evt->rel->value);
+ virtio_input_send(vinput, &event);
+ break;
+ case INPUT_EVENT_KIND_ABS:
+ event.type = cpu_to_le16(EV_ABS);
+ event.code = cpu_to_le16(axismap_abs[evt->abs->axis]);
+ event.value = cpu_to_le32(evt->abs->value);
+ virtio_input_send(vinput, &event);
+ break;
+ default:
+ /* keep gcc happy */
+ break;
+ }
+}
+
+static void virtio_input_handle_sync(DeviceState *dev)
+{
+ VirtIOInput *vinput = VIRTIO_INPUT(dev);
+ virtio_input_event event = {
+ .type = cpu_to_le16(EV_SYN),
+ .code = cpu_to_le16(SYN_REPORT),
+ .value = 0,
+ };
+
+ virtio_input_send(vinput, &event);
+}
+
+static void virtio_input_hid_realize(DeviceState *dev, Error **errp)
+{
+ VirtIOInputHID *vhid = VIRTIO_INPUT_HID(dev);
+
+ vhid->hs = qemu_input_handler_register(dev, vhid->handler);
+ if (vhid->display && vhid->hs) {
+ qemu_input_handler_bind(vhid->hs, vhid->display, vhid->head, NULL);
+ }
+}
+
+static void virtio_input_hid_unrealize(DeviceState *dev, Error **errp)
+{
+ VirtIOInputHID *vhid = VIRTIO_INPUT_HID(dev);
+ qemu_input_handler_unregister(vhid->hs);
+}
+
+static void virtio_input_hid_change_active(VirtIOInput *vinput)
+{
+ VirtIOInputHID *vhid = VIRTIO_INPUT_HID(vinput);
+
+ if (vinput->active) {
+ qemu_input_handler_activate(vhid->hs);
+ } else {
+ qemu_input_handler_deactivate(vhid->hs);
+ }
+}
+
+static void virtio_input_hid_handle_status(VirtIOInput *vinput,
+ virtio_input_event *event)
+{
+ VirtIOInputHID *vhid = VIRTIO_INPUT_HID(vinput);
+ int ledbit = 0;
+
+ switch (le16_to_cpu(event->type)) {
+ case EV_LED:
+ if (event->code == LED_NUML) {
+ ledbit = QEMU_NUM_LOCK_LED;
+ } else if (event->code == LED_CAPSL) {
+ ledbit = QEMU_CAPS_LOCK_LED;
+ } else if (event->code == LED_SCROLLL) {
+ ledbit = QEMU_SCROLL_LOCK_LED;
+ }
+ if (event->value) {
+ vhid->ledstate |= ledbit;
+ } else {
+ vhid->ledstate &= ~ledbit;
+ }
+ kbd_put_ledstate(vhid->ledstate);
+ break;
+ default:
+ fprintf(stderr, "%s: unknown type %d\n", __func__,
+ le16_to_cpu(event->type));
+ break;
+ }
+}
+
+static Property virtio_input_hid_properties[] = {
+ DEFINE_PROP_STRING("display", VirtIOInputHID, display),
+ DEFINE_PROP_UINT32("head", VirtIOInputHID, head, 0),
+ DEFINE_PROP_END_OF_LIST(),
+};
+
+static void virtio_input_hid_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+ VirtIOInputClass *vic = VIRTIO_INPUT_CLASS(klass);
+
+ dc->props = virtio_input_hid_properties;
+ vic->realize = virtio_input_hid_realize;
+ vic->unrealize = virtio_input_hid_unrealize;
+ vic->change_active = virtio_input_hid_change_active;
+ vic->handle_status = virtio_input_hid_handle_status;
+}
+
+static const TypeInfo virtio_input_hid_info = {
+ .name = TYPE_VIRTIO_INPUT_HID,
+ .parent = TYPE_VIRTIO_INPUT,
+ .instance_size = sizeof(VirtIOInputHID),
+ .class_init = virtio_input_hid_class_init,
+ .abstract = true,
+};
+
+/* ----------------------------------------------------------------- */
+
+static QemuInputHandler virtio_keyboard_handler = {
+ .name = VIRTIO_ID_NAME_KEYBOARD,
+ .mask = INPUT_EVENT_MASK_KEY,
+ .event = virtio_input_handle_event,
+ .sync = virtio_input_handle_sync,
+};
+
+static struct virtio_input_config virtio_keyboard_config[] = {
+ {
+ .select = VIRTIO_INPUT_CFG_ID_NAME,
+ .size = sizeof(VIRTIO_ID_NAME_KEYBOARD),
+ .u.string = VIRTIO_ID_NAME_KEYBOARD,
+ },{
+ .select = VIRTIO_INPUT_CFG_ID_DEVIDS,
+ .size = sizeof(struct virtio_input_devids),
+ .u.ids = {
+ .bustype = const_le16(BUS_VIRTUAL),
+ .vendor = const_le16(0x0627), /* same we use for usb hid devices */
+ .product = const_le16(0x0001),
+ .version = const_le16(0x0001),
+ },
+ },{
+ .select = VIRTIO_INPUT_CFG_EV_BITS,
+ .subsel = EV_REP,
+ .size = 1,
+ },{
+ .select = VIRTIO_INPUT_CFG_EV_BITS,
+ .subsel = EV_LED,
+ .size = 1,
+ .u.bitmap = {
+ (1 << LED_NUML) | (1 << LED_CAPSL) | (1 << LED_SCROLLL),
+ },
+ },
+ { /* end of list */ },
+};
+
+static void virtio_keyboard_init(Object *obj)
+{
+ VirtIOInputHID *vhid = VIRTIO_INPUT_HID(obj);
+ VirtIOInput *vinput = VIRTIO_INPUT(obj);
+
+ vhid->handler = &virtio_keyboard_handler;
+ virtio_input_init_config(vinput, virtio_keyboard_config);
+ virtio_input_key_config(vinput, keymap_qcode,
+ ARRAY_SIZE(keymap_qcode));
+}
+
+static const TypeInfo virtio_keyboard_info = {
+ .name = TYPE_VIRTIO_KEYBOARD,
+ .parent = TYPE_VIRTIO_INPUT_HID,
+ .instance_size = sizeof(VirtIOInputHID),
+ .instance_init = virtio_keyboard_init,
+};
+
+/* ----------------------------------------------------------------- */
+
+static QemuInputHandler virtio_mouse_handler = {
+ .name = VIRTIO_ID_NAME_MOUSE,
+ .mask = INPUT_EVENT_MASK_BTN | INPUT_EVENT_MASK_REL,
+ .event = virtio_input_handle_event,
+ .sync = virtio_input_handle_sync,
+};
+
+static struct virtio_input_config virtio_mouse_config[] = {
+ {
+ .select = VIRTIO_INPUT_CFG_ID_NAME,
+ .size = sizeof(VIRTIO_ID_NAME_MOUSE),
+ .u.string = VIRTIO_ID_NAME_MOUSE,
+ },{
+ .select = VIRTIO_INPUT_CFG_ID_DEVIDS,
+ .size = sizeof(struct virtio_input_devids),
+ .u.ids = {
+ .bustype = const_le16(BUS_VIRTUAL),
+ .vendor = const_le16(0x0627), /* same we use for usb hid devices */
+ .product = const_le16(0x0002),
+ .version = const_le16(0x0001),
+ },
+ },{
+ .select = VIRTIO_INPUT_CFG_EV_BITS,
+ .subsel = EV_REL,
+ .size = 1,
+ .u.bitmap = {
+ (1 << REL_X) | (1 << REL_Y),
+ },
+ },
+ { /* end of list */ },
+};
+
+static void virtio_mouse_init(Object *obj)
+{
+ VirtIOInputHID *vhid = VIRTIO_INPUT_HID(obj);
+ VirtIOInput *vinput = VIRTIO_INPUT(obj);
+
+ vhid->handler = &virtio_mouse_handler;
+ virtio_input_init_config(vinput, virtio_mouse_config);
+ virtio_input_key_config(vinput, keymap_button,
+ ARRAY_SIZE(keymap_button));
+}
+
+static const TypeInfo virtio_mouse_info = {
+ .name = TYPE_VIRTIO_MOUSE,
+ .parent = TYPE_VIRTIO_INPUT_HID,
+ .instance_size = sizeof(VirtIOInputHID),
+ .instance_init = virtio_mouse_init,
+};
+
+/* ----------------------------------------------------------------- */
+
+static QemuInputHandler virtio_tablet_handler = {
+ .name = VIRTIO_ID_NAME_TABLET,
+ .mask = INPUT_EVENT_MASK_BTN | INPUT_EVENT_MASK_ABS,
+ .event = virtio_input_handle_event,
+ .sync = virtio_input_handle_sync,
+};
+
+static struct virtio_input_config virtio_tablet_config[] = {
+ {
+ .select = VIRTIO_INPUT_CFG_ID_NAME,
+ .size = sizeof(VIRTIO_ID_NAME_TABLET),
+ .u.string = VIRTIO_ID_NAME_TABLET,
+ },{
+ .select = VIRTIO_INPUT_CFG_ID_DEVIDS,
+ .size = sizeof(struct virtio_input_devids),
+ .u.ids = {
+ .bustype = const_le16(BUS_VIRTUAL),
+ .vendor = const_le16(0x0627), /* same we use for usb hid devices */
+ .product = const_le16(0x0003),
+ .version = const_le16(0x0001),
+ },
+ },{
+ .select = VIRTIO_INPUT_CFG_EV_BITS,
+ .subsel = EV_ABS,
+ .size = 1,
+ .u.bitmap = {
+ (1 << ABS_X) | (1 << ABS_Y),
+ },
+ },{
+ .select = VIRTIO_INPUT_CFG_ABS_INFO,
+ .subsel = ABS_X,
+ .size = sizeof(virtio_input_absinfo),
+ .u.abs.max = const_le32(INPUT_EVENT_ABS_SIZE),
+ },{
+ .select = VIRTIO_INPUT_CFG_ABS_INFO,
+ .subsel = ABS_Y,
+ .size = sizeof(virtio_input_absinfo),
+ .u.abs.max = const_le32(INPUT_EVENT_ABS_SIZE),
+ },
+ { /* end of list */ },
+};
+
+static void virtio_tablet_init(Object *obj)
+{
+ VirtIOInputHID *vhid = VIRTIO_INPUT_HID(obj);
+ VirtIOInput *vinput = VIRTIO_INPUT(obj);
+
+ vhid->handler = &virtio_tablet_handler;
+ virtio_input_init_config(vinput, virtio_tablet_config);
+ virtio_input_key_config(vinput, keymap_button,
+ ARRAY_SIZE(keymap_button));
+}
+
+static const TypeInfo virtio_tablet_info = {
+ .name = TYPE_VIRTIO_TABLET,
+ .parent = TYPE_VIRTIO_INPUT_HID,
+ .instance_size = sizeof(VirtIOInputHID),
+ .instance_init = virtio_tablet_init,
+};
+
+/* ----------------------------------------------------------------- */
+
+static void virtio_register_types(void)
+{
+ type_register_static(&virtio_input_hid_info);
+ type_register_static(&virtio_keyboard_info);
+ type_register_static(&virtio_mouse_info);
+ type_register_static(&virtio_tablet_info);
+}
+
+type_init(virtio_register_types)