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// SPDX-License-Identifier: GPL-2.0
use core::ops::{Deref, DerefMut};
use kernel::{
bindings,
bindings::*,
io_buffer::{ReadableFromBytes, WritableToBytes},
};
macro_rules! pub_no_prefix {
($prefix:ident, $($newname:ident),+) => {
$(pub(crate) const $newname: u32 = kernel::macros::concat_idents!($prefix, $newname);)+
};
}
pub_no_prefix!(
binder_driver_return_protocol_,
BR_OK,
BR_ERROR,
BR_TRANSACTION,
BR_REPLY,
BR_DEAD_REPLY,
BR_TRANSACTION_COMPLETE,
BR_INCREFS,
BR_ACQUIRE,
BR_RELEASE,
BR_DECREFS,
BR_NOOP,
BR_SPAWN_LOOPER,
BR_DEAD_BINDER,
BR_CLEAR_DEATH_NOTIFICATION_DONE,
BR_FAILED_REPLY
);
pub_no_prefix!(
binder_driver_command_protocol_,
BC_TRANSACTION,
BC_REPLY,
BC_FREE_BUFFER,
BC_INCREFS,
BC_ACQUIRE,
BC_RELEASE,
BC_DECREFS,
BC_INCREFS_DONE,
BC_ACQUIRE_DONE,
BC_REGISTER_LOOPER,
BC_ENTER_LOOPER,
BC_EXIT_LOOPER,
BC_REQUEST_DEATH_NOTIFICATION,
BC_CLEAR_DEATH_NOTIFICATION,
BC_DEAD_BINDER_DONE
);
pub_no_prefix!(transaction_flags_, TF_ONE_WAY, TF_ACCEPT_FDS);
pub(crate) use bindings::{
BINDER_TYPE_BINDER, BINDER_TYPE_FD, BINDER_TYPE_HANDLE, BINDER_TYPE_WEAK_BINDER,
BINDER_TYPE_WEAK_HANDLE, FLAT_BINDER_FLAG_ACCEPTS_FDS,
};
macro_rules! decl_wrapper {
($newname:ident, $wrapped:ty) => {
#[derive(Copy, Clone, Default)]
pub(crate) struct $newname($wrapped);
// TODO: This must be justified by inspecting the type, so should live outside the macro or
// the macro should be somehow marked unsafe.
unsafe impl ReadableFromBytes for $newname {}
unsafe impl WritableToBytes for $newname {}
impl Deref for $newname {
type Target = $wrapped;
fn deref(&self) -> &Self::Target {
&self.0
}
}
impl DerefMut for $newname {
fn deref_mut(&mut self) -> &mut Self::Target {
&mut self.0
}
}
};
}
decl_wrapper!(BinderNodeDebugInfo, bindings::binder_node_debug_info);
decl_wrapper!(BinderNodeInfoForRef, bindings::binder_node_info_for_ref);
decl_wrapper!(FlatBinderObject, bindings::flat_binder_object);
decl_wrapper!(BinderTransactionData, bindings::binder_transaction_data);
decl_wrapper!(BinderWriteRead, bindings::binder_write_read);
decl_wrapper!(BinderVersion, bindings::binder_version);
impl BinderVersion {
pub(crate) fn current() -> Self {
Self(bindings::binder_version {
protocol_version: bindings::BINDER_CURRENT_PROTOCOL_VERSION as _,
})
}
}
|
