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usb hid: add migration support 

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Gerd Hoffmann 2010-12-10 14:40:30 +01:00
parent d15500902a
commit ee59e6b3bf
1 changed files with 64 additions and 2 deletions
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66
hw/usb-hid.c
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@ -65,7 +65,7 @@ typedef struct USBKeyboardState {
uint16_t modifiers;
uint8_t leds;
uint8_t key[16];
int keys;
int32_t keys;
} USBKeyboardState;
typedef struct USBHIDState {
@ -77,7 +77,7 @@ typedef struct USBHIDState {
uint32_t head; /* index into circular queue */
uint32_t n;
int kind;
int protocol;
int32_t protocol;
uint8_t idle;
int64_t next_idle_clock;
int changed;
@ -895,12 +895,72 @@ void usb_hid_datain_cb(USBDevice *dev, void *opaque, void (*datain)(void *))
s->datain = datain;
}
static int usb_hid_post_load(void *opaque, int version_id)
{
USBHIDState *s = opaque;
if (s->idle) {
usb_hid_set_next_idle(s, qemu_get_clock(vm_clock));
}
return 0;
}
static const VMStateDescription vmstate_usb_ptr_queue = {
.name = "usb-ptr-queue",
.version_id = 1,
.minimum_version_id = 1,
.fields = (VMStateField []) {
VMSTATE_INT32(xdx, USBPointerEvent),
VMSTATE_INT32(ydy, USBPointerEvent),
VMSTATE_INT32(dz, USBPointerEvent),
VMSTATE_INT32(buttons_state, USBPointerEvent),
VMSTATE_END_OF_LIST()
}
};
static const VMStateDescription vmstate_usb_ptr = {
.name = "usb-ptr",
.version_id = 1,
.minimum_version_id = 1,
.post_load = usb_hid_post_load,
.fields = (VMStateField []) {
VMSTATE_USB_DEVICE(dev, USBHIDState),
VMSTATE_STRUCT_ARRAY(ptr.queue, USBHIDState, QUEUE_LENGTH, 0,
vmstate_usb_ptr_queue, USBPointerEvent),
VMSTATE_UINT32(head, USBHIDState),
VMSTATE_UINT32(n, USBHIDState),
VMSTATE_INT32(protocol, USBHIDState),
VMSTATE_UINT8(idle, USBHIDState),
VMSTATE_END_OF_LIST()
}
};
static const VMStateDescription vmstate_usb_kbd = {
.name = "usb-kbd",
.version_id = 1,
.minimum_version_id = 1,
.post_load = usb_hid_post_load,
.fields = (VMStateField []) {
VMSTATE_USB_DEVICE(dev, USBHIDState),
VMSTATE_UINT32_ARRAY(kbd.keycodes, USBHIDState, QUEUE_LENGTH),
VMSTATE_UINT32(head, USBHIDState),
VMSTATE_UINT32(n, USBHIDState),
VMSTATE_UINT16(kbd.modifiers, USBHIDState),
VMSTATE_UINT8(kbd.leds, USBHIDState),
VMSTATE_UINT8_ARRAY(kbd.key, USBHIDState, 16),
VMSTATE_INT32(kbd.keys, USBHIDState),
VMSTATE_INT32(protocol, USBHIDState),
VMSTATE_UINT8(idle, USBHIDState),
VMSTATE_END_OF_LIST()
}
};
static struct USBDeviceInfo hid_info[] = {
{
.product_desc = "QEMU USB Tablet",
.qdev.name = "usb-tablet",
.usbdevice_name = "tablet",
.qdev.size = sizeof(USBHIDState),
.qdev.vmsd = &vmstate_usb_ptr,
.usb_desc = &desc_tablet,
.init = usb_tablet_initfn,
.handle_packet = usb_generic_handle_packet,
@ -913,6 +973,7 @@ static struct USBDeviceInfo hid_info[] = {
.qdev.name = "usb-mouse",
.usbdevice_name = "mouse",
.qdev.size = sizeof(USBHIDState),
.qdev.vmsd = &vmstate_usb_ptr,
.usb_desc = &desc_mouse,
.init = usb_mouse_initfn,
.handle_packet = usb_generic_handle_packet,
@ -925,6 +986,7 @@ static struct USBDeviceInfo hid_info[] = {
.qdev.name = "usb-kbd",
.usbdevice_name = "keyboard",
.qdev.size = sizeof(USBHIDState),
.qdev.vmsd = &vmstate_usb_kbd,
.usb_desc = &desc_keyboard,
.init = usb_keyboard_initfn,
.handle_packet = usb_generic_handle_packet,