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pcspk: adding vmstate for save/restore 

VMState added by this patch preserves correct
loading of the PC speaker device state.

Signed-off-by: Pavel Dovgalyuk <pavel.dovgaluk@ispras.ru>
Message-Id: <20160915090133.6440.65457.stgit@PASHA-ISP>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Pavel Dovgalyuk 2016-09-15 12:01:33 +03:00 committed by Paolo Bonzini
parent 46f5feaa0a
commit 39c88f5697
1 changed files with 15 additions and 2 deletions
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17
hw/audio/pcspk.c
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@ -52,8 +52,8 @@ typedef struct {
unsigned int pit_count;
unsigned int samples;
unsigned int play_pos;
int data_on;
int dummy_refresh_clock;
uint8_t data_on;
uint8_t dummy_refresh_clock;
} PCSpkState;
static const char *s_spk = "pcspk";
@ -187,6 +187,18 @@ static void pcspk_realizefn(DeviceState *dev, Error **errp)
pcspk_state = s;
}
static const VMStateDescription vmstate_spk = {
.name = "pcspk",
.version_id = 1,
.minimum_version_id = 1,
.minimum_version_id_old = 1,
.fields = (VMStateField[]) {
VMSTATE_UINT8(data_on, PCSpkState),
VMSTATE_UINT8(dummy_refresh_clock, PCSpkState),
VMSTATE_END_OF_LIST()
}
};
static Property pcspk_properties[] = {
DEFINE_PROP_UINT32("iobase", PCSpkState, iobase, -1),
DEFINE_PROP_END_OF_LIST(),
@ -198,6 +210,7 @@ static void pcspk_class_initfn(ObjectClass *klass, void *data)
dc->realize = pcspk_realizefn;
set_bit(DEVICE_CATEGORY_SOUND, dc->categories);
dc->vmsd = &vmstate_spk;
dc->props = pcspk_properties;
/* Reason: realize sets global pcspk_state */
dc->cannot_instantiate_with_device_add_yet = true;