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-rw-r--r--hw/input/ps2.c166
1 files changed, 144 insertions, 22 deletions
diff --git a/hw/input/ps2.c b/hw/input/ps2.c
index 34120796b1..22b77dfe5c 100644
--- a/hw/input/ps2.c
+++ b/hw/input/ps2.c
@@ -24,6 +24,7 @@
#include "hw/hw.h"
#include "hw/input/ps2.h"
#include "ui/console.h"
+#include "ui/input.h"
#include "sysemu/sysemu.h"
/* debug PC keyboard */
@@ -71,10 +72,12 @@
#define MOUSE_STATUS_ENABLED 0x20
#define MOUSE_STATUS_SCALE21 0x10
-#define PS2_QUEUE_SIZE 256
+#define PS2_QUEUE_SIZE 16 /* Buffer size required by PS/2 protocol */
typedef struct {
- uint8_t data[PS2_QUEUE_SIZE];
+ /* Keep the data array 256 bytes long, which compatibility
+ with older qemu versions. */
+ uint8_t data[256];
int rptr, wptr, count;
} PS2Queue;
@@ -137,7 +140,7 @@ void ps2_queue(void *opaque, int b)
PS2State *s = (PS2State *)opaque;
PS2Queue *q = &s->queue;
- if (q->count >= PS2_QUEUE_SIZE)
+ if (q->count >= PS2_QUEUE_SIZE - 1)
return;
q->data[q->wptr] = b;
if (++q->wptr == PS2_QUEUE_SIZE)
@@ -170,6 +173,21 @@ static void ps2_put_keycode(void *opaque, int keycode)
ps2_queue(&s->common, keycode);
}
+static void ps2_keyboard_event(DeviceState *dev, QemuConsole *src,
+ InputEvent *evt)
+{
+ PS2KbdState *s = (PS2KbdState *)dev;
+ int scancodes[3], i, count;
+
+ qemu_system_wakeup_request(QEMU_WAKEUP_REASON_OTHER);
+ count = qemu_input_key_value_to_scancode(evt->key->key,
+ evt->key->down,
+ scancodes);
+ for (i = 0; i < count; i++) {
+ ps2_put_keycode(s, scancodes[i]);
+ }
+}
+
uint32_t ps2_read_data(void *opaque)
{
PS2State *s = (PS2State *)opaque;
@@ -352,31 +370,57 @@ static void ps2_mouse_send_packet(PS2MouseState *s)
s->mouse_dz -= dz1;
}
-static void ps2_mouse_event(void *opaque,
- int dx, int dy, int dz, int buttons_state)
+static void ps2_mouse_event(DeviceState *dev, QemuConsole *src,
+ InputEvent *evt)
{
- PS2MouseState *s = opaque;
+ static const int bmap[INPUT_BUTTON_MAX] = {
+ [INPUT_BUTTON_LEFT] = MOUSE_EVENT_LBUTTON,
+ [INPUT_BUTTON_MIDDLE] = MOUSE_EVENT_MBUTTON,
+ [INPUT_BUTTON_RIGHT] = MOUSE_EVENT_RBUTTON,
+ };
+ PS2MouseState *s = (PS2MouseState *)dev;
/* check if deltas are recorded when disabled */
if (!(s->mouse_status & MOUSE_STATUS_ENABLED))
return;
- s->mouse_dx += dx;
- s->mouse_dy -= dy;
- s->mouse_dz += dz;
- /* XXX: SDL sometimes generates nul events: we delete them */
- if (s->mouse_dx == 0 && s->mouse_dy == 0 && s->mouse_dz == 0 &&
- s->mouse_buttons == buttons_state)
- return;
- s->mouse_buttons = buttons_state;
+ switch (evt->kind) {
+ case INPUT_EVENT_KIND_REL:
+ if (evt->rel->axis == INPUT_AXIS_X) {
+ s->mouse_dx += evt->rel->value;
+ } else if (evt->rel->axis == INPUT_AXIS_Y) {
+ s->mouse_dy -= evt->rel->value;
+ }
+ break;
- if (buttons_state) {
- qemu_system_wakeup_request(QEMU_WAKEUP_REASON_OTHER);
+ case INPUT_EVENT_KIND_BTN:
+ if (evt->btn->down) {
+ s->mouse_buttons |= bmap[evt->btn->button];
+ if (evt->btn->button == INPUT_BUTTON_WHEEL_UP) {
+ s->mouse_dz--;
+ } else if (evt->btn->button == INPUT_BUTTON_WHEEL_DOWN) {
+ s->mouse_dz++;
+ }
+ } else {
+ s->mouse_buttons &= ~bmap[evt->btn->button];
+ }
+ break;
+
+ default:
+ /* keep gcc happy */
+ break;
}
+}
- if (!(s->mouse_status & MOUSE_STATUS_REMOTE) &&
- (s->common.queue.count < (PS2_QUEUE_SIZE - 16))) {
- for(;;) {
+static void ps2_mouse_sync(DeviceState *dev)
+{
+ PS2MouseState *s = (PS2MouseState *)dev;
+
+ if (s->mouse_buttons) {
+ qemu_system_wakeup_request(QEMU_WAKEUP_REASON_OTHER);
+ }
+ if (!(s->mouse_status & MOUSE_STATUS_REMOTE)) {
+ while (s->common.queue.count < PS2_QUEUE_SIZE - 4) {
/* if not remote, send event. Multiple events are sent if
too big deltas */
ps2_mouse_send_packet(s);
@@ -388,7 +432,9 @@ static void ps2_mouse_event(void *opaque,
void ps2_mouse_fake_event(void *opaque)
{
- ps2_mouse_event(opaque, 1, 0, 0, 0);
+ PS2MouseState *s = opaque;
+ s->mouse_dx++;
+ ps2_mouse_sync(opaque);
}
void ps2_write_mouse(void *opaque, int val)
@@ -528,6 +574,34 @@ static void ps2_common_reset(PS2State *s)
s->update_irq(s->update_arg, 0);
}
+static void ps2_common_post_load(PS2State *s)
+{
+ PS2Queue *q = &s->queue;
+ int size;
+ int i;
+ int tmp_data[PS2_QUEUE_SIZE];
+
+ /* set the useful data buffer queue size, < PS2_QUEUE_SIZE */
+ size = q->count > PS2_QUEUE_SIZE ? 0 : q->count;
+
+ /* move the queue elements to the start of data array */
+ if (size > 0) {
+ for (i = 0; i < size; i++) {
+ /* move the queue elements to the temporary buffer */
+ tmp_data[i] = q->data[q->rptr];
+ if (++q->rptr == 256) {
+ q->rptr = 0;
+ }
+ }
+ memcpy(q->data, tmp_data, size);
+ }
+ /* reset rptr/wptr/count */
+ q->rptr = 0;
+ q->wptr = size;
+ q->count = size;
+ s->update_irq(s->update_arg, q->count != 0);
+}
+
static void ps2_kbd_reset(void *opaque)
{
PS2KbdState *s = (PS2KbdState *) opaque;
@@ -600,18 +674,31 @@ static const VMStateDescription vmstate_ps2_keyboard_ledstate = {
static int ps2_kbd_post_load(void* opaque, int version_id)
{
PS2KbdState *s = (PS2KbdState*)opaque;
+ PS2State *ps2 = &s->common;
if (version_id == 2)
s->scancode_set=2;
+
+ ps2_common_post_load(ps2);
+
return 0;
}
+static void ps2_kbd_pre_save(void *opaque)
+{
+ PS2KbdState *s = (PS2KbdState *)opaque;
+ PS2State *ps2 = &s->common;
+
+ ps2_common_post_load(ps2);
+}
+
static const VMStateDescription vmstate_ps2_keyboard = {
.name = "ps2kbd",
.version_id = 3,
.minimum_version_id = 2,
.minimum_version_id_old = 2,
.post_load = ps2_kbd_post_load,
+ .pre_save = ps2_kbd_pre_save,
.fields = (VMStateField []) {
VMSTATE_STRUCT(common, PS2KbdState, 0, vmstate_ps2_common, PS2State),
VMSTATE_INT32(scan_enabled, PS2KbdState),
@@ -629,11 +716,31 @@ static const VMStateDescription vmstate_ps2_keyboard = {
}
};
+static int ps2_mouse_post_load(void *opaque, int version_id)
+{
+ PS2MouseState *s = (PS2MouseState *)opaque;
+ PS2State *ps2 = &s->common;
+
+ ps2_common_post_load(ps2);
+
+ return 0;
+}
+
+static void ps2_mouse_pre_save(void *opaque)
+{
+ PS2MouseState *s = (PS2MouseState *)opaque;
+ PS2State *ps2 = &s->common;
+
+ ps2_common_post_load(ps2);
+}
+
static const VMStateDescription vmstate_ps2_mouse = {
.name = "ps2mouse",
.version_id = 2,
.minimum_version_id = 2,
.minimum_version_id_old = 2,
+ .post_load = ps2_mouse_post_load,
+ .pre_save = ps2_mouse_pre_save,
.fields = (VMStateField []) {
VMSTATE_STRUCT(common, PS2MouseState, 0, vmstate_ps2_common, PS2State),
VMSTATE_UINT8(mouse_status, PS2MouseState),
@@ -650,6 +757,12 @@ static const VMStateDescription vmstate_ps2_mouse = {
}
};
+static QemuInputHandler ps2_keyboard_handler = {
+ .name = "QEMU PS/2 Keyboard",
+ .mask = INPUT_EVENT_MASK_KEY,
+ .event = ps2_keyboard_event,
+};
+
void *ps2_kbd_init(void (*update_irq)(void *, int), void *update_arg)
{
PS2KbdState *s = (PS2KbdState *)g_malloc0(sizeof(PS2KbdState));
@@ -658,11 +771,19 @@ void *ps2_kbd_init(void (*update_irq)(void *, int), void *update_arg)
s->common.update_arg = update_arg;
s->scancode_set = 2;
vmstate_register(NULL, 0, &vmstate_ps2_keyboard, s);
- qemu_add_kbd_event_handler(ps2_put_keycode, s);
+ qemu_input_handler_register((DeviceState *)s,
+ &ps2_keyboard_handler);
qemu_register_reset(ps2_kbd_reset, s);
return s;
}
+static QemuInputHandler ps2_mouse_handler = {
+ .name = "QEMU PS/2 Mouse",
+ .mask = INPUT_EVENT_MASK_BTN | INPUT_EVENT_MASK_REL,
+ .event = ps2_mouse_event,
+ .sync = ps2_mouse_sync,
+};
+
void *ps2_mouse_init(void (*update_irq)(void *, int), void *update_arg)
{
PS2MouseState *s = (PS2MouseState *)g_malloc0(sizeof(PS2MouseState));
@@ -670,7 +791,8 @@ void *ps2_mouse_init(void (*update_irq)(void *, int), void *update_arg)
s->common.update_irq = update_irq;
s->common.update_arg = update_arg;
vmstate_register(NULL, 0, &vmstate_ps2_mouse, s);
- qemu_add_mouse_event_handler(ps2_mouse_event, s, 0, "QEMU PS/2 Mouse");
+ qemu_input_handler_register((DeviceState *)s,
+ &ps2_mouse_handler);
qemu_register_reset(ps2_mouse_reset, s);
return s;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-16 02:41:07 +0000