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// Copyright 2024, Linaro Limited
// Author(s): Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
// SPDX-License-Identifier: GPL-2.0-or-later
use std::{
os::raw::{c_int, c_void},
ptr::NonNull,
};
use qemu_api::{
bindings::{qdev_prop_bool, qdev_prop_chr},
c_str,
prelude::*,
vmstate::VMStateDescription,
vmstate_clock, vmstate_fields, vmstate_of, vmstate_struct, vmstate_subsections, vmstate_unused,
zeroable::Zeroable,
};
use crate::device::{PL011Registers, PL011State};
extern "C" fn pl011_clock_needed(opaque: *mut c_void) -> bool {
let state = NonNull::new(opaque).unwrap().cast::<PL011State>();
unsafe { state.as_ref().migrate_clock }
}
/// Migration subsection for [`PL011State`] clock.
static VMSTATE_PL011_CLOCK: VMStateDescription = VMStateDescription {
name: c_str!("pl011/clock").as_ptr(),
version_id: 1,
minimum_version_id: 1,
needed: Some(pl011_clock_needed),
fields: vmstate_fields! {
vmstate_clock!(PL011State, clock),
},
..Zeroable::ZERO
};
extern "C" fn pl011_post_load(opaque: *mut c_void, version_id: c_int) -> c_int {
let state = NonNull::new(opaque).unwrap().cast::<PL011State>();
let result = unsafe { state.as_ref().post_load(version_id as u32) };
if result.is_err() {
-1
} else {
0
}
}
static VMSTATE_PL011_REGS: VMStateDescription = VMStateDescription {
name: c_str!("pl011/regs").as_ptr(),
version_id: 2,
minimum_version_id: 2,
fields: vmstate_fields! {
vmstate_of!(PL011Registers, flags),
vmstate_of!(PL011Registers, line_control),
vmstate_of!(PL011Registers, receive_status_error_clear),
vmstate_of!(PL011Registers, control),
vmstate_of!(PL011Registers, dmacr),
vmstate_of!(PL011Registers, int_enabled),
vmstate_of!(PL011Registers, int_level),
vmstate_of!(PL011Registers, read_fifo),
vmstate_of!(PL011Registers, ilpr),
vmstate_of!(PL011Registers, ibrd),
vmstate_of!(PL011Registers, fbrd),
vmstate_of!(PL011Registers, ifl),
vmstate_of!(PL011Registers, read_pos),
vmstate_of!(PL011Registers, read_count),
vmstate_of!(PL011Registers, read_trigger),
},
..Zeroable::ZERO
};
pub static VMSTATE_PL011: VMStateDescription = VMStateDescription {
name: c_str!("pl011").as_ptr(),
version_id: 2,
minimum_version_id: 2,
post_load: Some(pl011_post_load),
fields: vmstate_fields! {
vmstate_unused!(core::mem::size_of::<u32>()),
vmstate_struct!(PL011State, regs, &VMSTATE_PL011_REGS, BqlRefCell<PL011Registers>),
},
subsections: vmstate_subsections! {
VMSTATE_PL011_CLOCK
},
..Zeroable::ZERO
};
qemu_api::declare_properties! {
PL011_PROPERTIES,
qemu_api::define_property!(
c_str!("chardev"),
PL011State,
char_backend,
unsafe { &qdev_prop_chr },
CharBackend
),
qemu_api::define_property!(
c_str!("migrate-clk"),
PL011State,
migrate_clock,
unsafe { &qdev_prop_bool },
bool,
default = true
),
}
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