i386/pc: move vmmouse.c to hw/i386/

It's a x86-only device, so it does not make sense to keep it
in the shared misc folder.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>

1 files changed, 303 insertions, 0 deletions

diff --git a/hw/i386/vmmouse.c b/hw/i386/vmmouse.c
new file mode 100644
index 0000000000..65ef55329e
--- /dev/null
+++ b/hw/i386/vmmouse.c
@@ -0,0 +1,303 @@
+/*
+ * QEMU VMMouse emulation
+ *
+ * Copyright (C) 2007 Anthony Liguori <anthony@codemonkey.ws>
+ *
+ * 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.
+ */
+#include "qemu/osdep.h"
+#include "hw/hw.h"
+#include "ui/console.h"
+#include "hw/i386/pc.h"
+#include "hw/qdev.h"
+
+/* debug only vmmouse */
+//#define DEBUG_VMMOUSE
+
+/* VMMouse Commands */
+#define VMMOUSE_GETVERSION	10
+#define VMMOUSE_DATA		39
+#define VMMOUSE_STATUS		40
+#define VMMOUSE_COMMAND		41
+
+#define VMMOUSE_READ_ID			0x45414552
+#define VMMOUSE_DISABLE			0x000000f5
+#define VMMOUSE_REQUEST_RELATIVE	0x4c455252
+#define VMMOUSE_REQUEST_ABSOLUTE	0x53424152
+
+#define VMMOUSE_QUEUE_SIZE	1024
+
+#define VMMOUSE_VERSION		0x3442554a
+
+#ifdef DEBUG_VMMOUSE
+#define DPRINTF(fmt, ...) printf(fmt, ## __VA_ARGS__)
+#else
+#define DPRINTF(fmt, ...) do { } while (0)
+#endif
+
+#define TYPE_VMMOUSE "vmmouse"
+#define VMMOUSE(obj) OBJECT_CHECK(VMMouseState, (obj), TYPE_VMMOUSE)
+
+typedef struct VMMouseState
+{
+    ISADevice parent_obj;
+
+    uint32_t queue[VMMOUSE_QUEUE_SIZE];
+    int32_t queue_size;
+    uint16_t nb_queue;
+    uint16_t status;
+    uint8_t absolute;
+    QEMUPutMouseEntry *entry;
+    void *ps2_mouse;
+} VMMouseState;
+
+static uint32_t vmmouse_get_status(VMMouseState *s)
+{
+    DPRINTF("vmmouse_get_status()\n");
+    return (s->status << 16) | s->nb_queue;
+}
+
+static void vmmouse_mouse_event(void *opaque, int x, int y, int dz, int buttons_state)
+{
+    VMMouseState *s = opaque;
+    int buttons = 0;
+
+    if (s->nb_queue > (VMMOUSE_QUEUE_SIZE - 4))
+        return;
+
+    DPRINTF("vmmouse_mouse_event(%d, %d, %d, %d)\n",
+            x, y, dz, buttons_state);
+
+    if ((buttons_state & MOUSE_EVENT_LBUTTON))
+        buttons |= 0x20;
+    if ((buttons_state & MOUSE_EVENT_RBUTTON))
+        buttons |= 0x10;
+    if ((buttons_state & MOUSE_EVENT_MBUTTON))
+        buttons |= 0x08;
+
+    if (s->absolute) {
+        x <<= 1;
+        y <<= 1;
+    }
+
+    s->queue[s->nb_queue++] = buttons;
+    s->queue[s->nb_queue++] = x;
+    s->queue[s->nb_queue++] = y;
+    s->queue[s->nb_queue++] = dz;
+
+    /* need to still generate PS2 events to notify driver to
+       read from queue */
+    i8042_isa_mouse_fake_event(s->ps2_mouse);
+}
+
+static void vmmouse_remove_handler(VMMouseState *s)
+{
+    if (s->entry) {
+        qemu_remove_mouse_event_handler(s->entry);
+        s->entry = NULL;
+    }
+}
+
+static void vmmouse_update_handler(VMMouseState *s, int absolute)
+{
+    if (s->status != 0) {
+        return;
+    }
+    if (s->absolute != absolute) {
+        s->absolute = absolute;
+        vmmouse_remove_handler(s);
+    }
+    if (s->entry == NULL) {
+        s->entry = qemu_add_mouse_event_handler(vmmouse_mouse_event,
+                                                s, s->absolute,
+                                                "vmmouse");
+        qemu_activate_mouse_event_handler(s->entry);
+    }
+}
+
+static void vmmouse_read_id(VMMouseState *s)
+{
+    DPRINTF("vmmouse_read_id()\n");
+
+    if (s->nb_queue == VMMOUSE_QUEUE_SIZE)
+        return;
+
+    s->queue[s->nb_queue++] = VMMOUSE_VERSION;
+    s->status = 0;
+}
+
+static void vmmouse_request_relative(VMMouseState *s)
+{
+    DPRINTF("vmmouse_request_relative()\n");
+    vmmouse_update_handler(s, 0);
+}
+
+static void vmmouse_request_absolute(VMMouseState *s)
+{
+    DPRINTF("vmmouse_request_absolute()\n");
+    vmmouse_update_handler(s, 1);
+}
+
+static void vmmouse_disable(VMMouseState *s)
+{
+    DPRINTF("vmmouse_disable()\n");
+    s->status = 0xffff;
+    vmmouse_remove_handler(s);
+}
+
+static void vmmouse_data(VMMouseState *s, uint32_t *data, uint32_t size)
+{
+    int i;
+
+    DPRINTF("vmmouse_data(%d)\n", size);
+
+    if (size == 0 || size > 6 || size > s->nb_queue) {
+        printf("vmmouse: driver requested too much data %d\n", size);
+        s->status = 0xffff;
+        vmmouse_remove_handler(s);
+        return;
+    }
+
+    for (i = 0; i < size; i++)
+        data[i] = s->queue[i];
+
+    s->nb_queue -= size;
+    if (s->nb_queue)
+        memmove(s->queue, &s->queue[size], sizeof(s->queue[0]) * s->nb_queue);
+}
+
+static uint32_t vmmouse_ioport_read(void *opaque, uint32_t addr)
+{
+    VMMouseState *s = opaque;
+    uint32_t data[6];
+    uint16_t command;
+
+    vmmouse_get_data(data);
+
+    command = data[2] & 0xFFFF;
+
+    switch (command) {
+    case VMMOUSE_STATUS:
+        data[0] = vmmouse_get_status(s);
+        break;
+    case VMMOUSE_COMMAND:
+        switch (data[1]) {
+        case VMMOUSE_DISABLE:
+            vmmouse_disable(s);
+            break;
+        case VMMOUSE_READ_ID:
+            vmmouse_read_id(s);
+            break;
+        case VMMOUSE_REQUEST_RELATIVE:
+            vmmouse_request_relative(s);
+            break;
+        case VMMOUSE_REQUEST_ABSOLUTE:
+            vmmouse_request_absolute(s);
+            break;
+        default:
+            printf("vmmouse: unknown command %x\n", data[1]);
+            break;
+        }
+        break;
+    case VMMOUSE_DATA:
+        vmmouse_data(s, data, data[1]);
+        break;
+    default:
+        printf("vmmouse: unknown command %x\n", command);
+        break;
+    }
+
+    vmmouse_set_data(data);
+    return data[0];
+}
+
+static int vmmouse_post_load(void *opaque, int version_id)
+{
+    VMMouseState *s = opaque;
+
+    vmmouse_remove_handler(s);
+    vmmouse_update_handler(s, s->absolute);
+    return 0;
+}
+
+static const VMStateDescription vmstate_vmmouse = {
+    .name = "vmmouse",
+    .version_id = 0,
+    .minimum_version_id = 0,
+    .post_load = vmmouse_post_load,
+    .fields = (VMStateField[]) {
+        VMSTATE_INT32_EQUAL(queue_size, VMMouseState, NULL),
+        VMSTATE_UINT32_ARRAY(queue, VMMouseState, VMMOUSE_QUEUE_SIZE),
+        VMSTATE_UINT16(nb_queue, VMMouseState),
+        VMSTATE_UINT16(status, VMMouseState),
+        VMSTATE_UINT8(absolute, VMMouseState),
+        VMSTATE_END_OF_LIST()
+    }
+};
+
+static void vmmouse_reset(DeviceState *d)
+{
+    VMMouseState *s = VMMOUSE(d);
+
+    s->queue_size = VMMOUSE_QUEUE_SIZE;
+
+    vmmouse_disable(s);
+}
+
+static void vmmouse_realizefn(DeviceState *dev, Error **errp)
+{
+    VMMouseState *s = VMMOUSE(dev);
+
+    DPRINTF("vmmouse_init\n");
+
+    vmport_register(VMMOUSE_STATUS, vmmouse_ioport_read, s);
+    vmport_register(VMMOUSE_COMMAND, vmmouse_ioport_read, s);
+    vmport_register(VMMOUSE_DATA, vmmouse_ioport_read, s);
+}
+
+static Property vmmouse_properties[] = {
+    DEFINE_PROP_PTR("ps2_mouse", VMMouseState, ps2_mouse),
+    DEFINE_PROP_END_OF_LIST(),
+};
+
+static void vmmouse_class_initfn(ObjectClass *klass, void *data)
+{
+    DeviceClass *dc = DEVICE_CLASS(klass);
+
+    dc->realize = vmmouse_realizefn;
+    dc->reset = vmmouse_reset;
+    dc->vmsd = &vmstate_vmmouse;
+    dc->props = vmmouse_properties;
+    /* Reason: pointer property "ps2_mouse" */
+    dc->user_creatable = false;
+}
+
+static const TypeInfo vmmouse_info = {
+    .name          = TYPE_VMMOUSE,
+    .parent        = TYPE_ISA_DEVICE,
+    .instance_size = sizeof(VMMouseState),
+    .class_init    = vmmouse_class_initfn,
+};
+
+static void vmmouse_register_types(void)
+{
+    type_register_static(&vmmouse_info);
+}
+
+type_init(vmmouse_register_types)