Commit 548df2ac authored by Thiemo Seufer's avatar Thiemo Seufer
Browse files

VMMouse Emulation, by Anthony Liguori. 


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2514 c046a42c-6fe2-441c-8c8c-71466251a162
parent 3ad4bb2d

Makefile.target

+1 −1
Original line number Diff line number Diff line
@@ -377,7 +377,7 @@ ifeq ($(TARGET_BASE_ARCH), i386) 
VL_OBJS+= ide.o pckbd.o ps2.o vga.o $(SOUND_HW) dma.o $(AUDIODRV)

VL_OBJS+= fdc.o mc146818rtc.o serial.o i8259.o i8254.o pcspk.o pc.o

VL_OBJS+= cirrus_vga.o mixeng.o apic.o parallel.o acpi.o piix_pci.o

VL_OBJS+= usb-uhci.o smbus_eeprom.o

VL_OBJS+= usb-uhci.o smbus_eeprom.o vmmouse.o

CPPFLAGS += -DHAS_AUDIO

endif

ifeq ($(TARGET_BASE_ARCH), ppc)

hw/pckbd.c

+3 −0
Original line number Diff line number Diff line
@@ -372,6 +372,9 @@ void i8042_init(int kbd_irq_lvl, int mouse_irq_lvl, uint32_t io_base) 


    s->kbd = ps2_kbd_init(kbd_update_kbd_irq, s);

    s->mouse = ps2_mouse_init(kbd_update_aux_irq, s);

#ifdef TARGET_I386

    vmmouse_init(s->mouse);

#endif

    qemu_register_reset(kbd_reset, s);

}

hw/ps2.c

+5 −0
Original line number Diff line number Diff line
@@ -324,6 +324,11 @@ static void ps2_mouse_event(void *opaque, 
    }

}



void ps2_mouse_fake_event(void *opaque)

{

    ps2_mouse_event(opaque, 1, 0, 0, 0);

}



void ps2_write_mouse(void *opaque, int val)

{

    PS2MouseState *s = (PS2MouseState *)opaque;

hw/vmmouse.c

0 → 100644
+300 −0
Original line number Diff line number Diff line 
/*

 * 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 "vl.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_MAGIC		0x564D5868

#define VMMOUSE_VERSION		0x3442554a



#ifdef DEBUG_VMMOUSE

#define DPRINTF(fmt, ...) printf(fmt, ## __VA_ARGS__)

#else

#define DPRINTF(fmt, ...) do { } while (0)

#endif



typedef struct _VMMouseState

{

    uint32_t queue[VMMOUSE_QUEUE_SIZE];

    uint16_t nb_queue;

    uint16_t status;

    uint8_t absolute;

    QEMUPutMouseEntry *entry;

    void *ps2_mouse;

} VMMouseState;



static uint32_t vmmouse_get_version(VMMouseState *s, uint32_t *magic)

{

    DPRINTF("vmmouse_get_version(%x)\n", *magic);

    *magic = VMMOUSE_MAGIC;

    return VMMOUSE_VERSION;

}



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 */

    ps2_mouse_fake_event(s->ps2_mouse);

}



static void vmmouse_update_handler(VMMouseState *s)

{

    if (s->entry) {

	qemu_remove_mouse_event_handler(s->entry);

	s->entry = NULL;

    }

    if (s->status == 0)

	s->entry = qemu_add_mouse_event_handler(vmmouse_mouse_event,

						s, s->absolute,

						"vmmouse");

}



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;

    vmmouse_update_handler(s);

}



static void vmmouse_request_relative(VMMouseState *s)

{

    DPRINTF("vmmouse_request_relative()\n");

    s->absolute = 0;

    vmmouse_update_handler(s);

}



static void vmmouse_request_absolute(VMMouseState *s)

{

    DPRINTF("vmmouse_request_absolute()\n");

    s->absolute = 1;

    vmmouse_update_handler(s);

}



static void vmmouse_disable(VMMouseState *s)

{

    DPRINTF("vmmouse_disable()\n");

    s->status = 0xffff;

    vmmouse_update_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_update_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 void vmmouse_get_data(uint32_t *data)

{

    CPUState *env = cpu_single_env;



    data[0] = env->regs[R_EAX]; data[1] = env->regs[R_EBX];

    data[2] = env->regs[R_ECX]; data[3] = env->regs[R_EDX];

    data[4] = env->regs[R_ESI]; data[5] = env->regs[R_EDI];



    DPRINTF("get_data = {%x, %x, %x, %x, %x, %x}\n",

	    data[0], data[1], data[2], data[3], data[4], data[5]);

}



static void vmmouse_set_data(const uint32_t *data)

{

    CPUState *env = cpu_single_env;



    DPRINTF("set_data = {%x, %x, %x, %x, %x, %x}\n",

	    data[0], data[1], data[2], data[3], data[4], data[5]);



    env->regs[R_EAX] = data[0]; env->regs[R_EBX] = data[1];

    env->regs[R_ECX] = data[2]; env->regs[R_EDX] = data[3];

    env->regs[R_ESI] = data[4]; env->regs[R_EDI] = data[5];

}



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);

    if (data[0] != VMMOUSE_MAGIC)

	goto error;



    command = data[2] & 0xFFFF;



    switch (command) {

    case VMMOUSE_GETVERSION:

	data[0] = vmmouse_get_version(s, &data[1]);

	break;

    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;

    }



error:

    vmmouse_set_data(data);

    return data[0];

}



static void vmmouse_save(QEMUFile *f, void *opaque)

{

    VMMouseState *s = opaque;

    int i;



    qemu_put_be32(f, VMMOUSE_QUEUE_SIZE);

    for (i = 0; i < VMMOUSE_QUEUE_SIZE; i++)

	qemu_put_be32s(f, &s->queue[i]);

    qemu_put_be16s(f, &s->nb_queue);

    qemu_put_be16s(f, &s->status);

    qemu_put_8s(f, &s->absolute);

}



static int vmmouse_load(QEMUFile *f, void *opaque, int version_id)

{

    VMMouseState *s = opaque;

    int i;



    if (version_id != 0)

        return -EINVAL;



    if (qemu_get_be32(f) != VMMOUSE_QUEUE_SIZE)

	return -EINVAL;

    for (i = 0; i < VMMOUSE_QUEUE_SIZE; i++)

	qemu_get_be32s(f, &s->queue[i]);

    qemu_get_be16s(f, &s->nb_queue);

    qemu_get_be16s(f, &s->status);

    qemu_get_8s(f, &s->absolute);



    vmmouse_update_handler(s);



    return 0;

}



void *vmmouse_init(void *m)

{

    VMMouseState *s = NULL;



    DPRINTF("vmmouse_init\n");



    s = qemu_mallocz(sizeof(VMMouseState));

    if (!s)

	return NULL;



    s->status = 0xffff;

    s->ps2_mouse = m;



    register_ioport_read(0x5658, 1, 4, vmmouse_ioport_read, s);

    register_savevm("vmmouse", 0, 0, vmmouse_save, vmmouse_load, s);



    return s;

}

vl.h

+3 −0
Original line number Diff line number Diff line
@@ -1005,6 +1005,8 @@ void pci_pcnet_init(PCIBus *bus, NICInfo *nd, int devfn); 
void pcnet_h_reset(void *opaque);

void *lance_init(NICInfo *nd, uint32_t leaddr, void *dma_opaque);



/* vmmouse.c */

void *vmmouse_init(void *m);



/* pckbd.c */
@@ -1326,6 +1328,7 @@ void ps2_write_keyboard(void *, int val); 
uint32_t ps2_read_data(void *);

void ps2_queue(void *, int b);

void ps2_keyboard_set_translation(void *opaque, int mode);

void ps2_mouse_fake_event(void *opaque);



/* smc91c111.c */

void smc91c111_init(NICInfo *, uint32_t, void *, int);