105 lines
2.4 KiB
Rust
105 lines
2.4 KiB
Rust
use core::ptr;
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use crate::consts::TlPacketType;
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use crate::PacketHeader;
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#[derive(Copy, Clone)]
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#[repr(C, packed)]
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pub struct Cmd {
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pub cmd_code: u16,
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pub payload_len: u8,
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pub payload: [u8; 255],
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}
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impl Default for Cmd {
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fn default() -> Self {
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Self {
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cmd_code: 0,
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payload_len: 0,
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payload: [0u8; 255],
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}
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}
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}
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#[derive(Copy, Clone, Default)]
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#[repr(C, packed)]
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pub struct CmdSerial {
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pub ty: u8,
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pub cmd: Cmd,
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}
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#[derive(Copy, Clone, Default)]
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#[repr(C, packed)]
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pub struct CmdSerialStub {
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pub ty: u8,
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pub cmd_code: u16,
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pub payload_len: u8,
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}
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#[derive(Copy, Clone, Default)]
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#[repr(C, packed)]
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pub struct CmdPacket {
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pub header: PacketHeader,
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pub cmdserial: CmdSerial,
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}
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impl CmdPacket {
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pub unsafe fn write_into(cmd_buf: *mut CmdPacket, packet_type: TlPacketType, cmd_code: u16, payload: &[u8]) {
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let p_cmd_serial = &mut (*cmd_buf).cmdserial as *mut _ as *mut CmdSerialStub;
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let p_payload = &mut (*cmd_buf).cmdserial.cmd.payload as *mut _;
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ptr::write_volatile(
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p_cmd_serial,
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CmdSerialStub {
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ty: packet_type as u8,
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cmd_code,
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payload_len: payload.len() as u8,
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},
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);
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ptr::copy_nonoverlapping(payload as *const _ as *const u8, p_payload, payload.len());
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}
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}
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#[derive(Copy, Clone)]
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#[repr(C, packed)]
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pub struct AclDataSerial {
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pub ty: u8,
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pub handle: u16,
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pub length: u16,
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pub acl_data: [u8; 1],
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}
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#[derive(Copy, Clone)]
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#[repr(C, packed)]
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pub struct AclDataSerialStub {
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pub ty: u8,
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pub handle: u16,
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pub length: u16,
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}
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#[derive(Copy, Clone)]
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#[repr(C, packed)]
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pub struct AclDataPacket {
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pub header: PacketHeader,
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pub acl_data_serial: AclDataSerial,
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}
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impl AclDataPacket {
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pub unsafe fn write_into(cmd_buf: *mut AclDataPacket, packet_type: TlPacketType, handle: u16, payload: &[u8]) {
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let p_cmd_serial = &mut (*cmd_buf).acl_data_serial as *mut _ as *mut AclDataSerialStub;
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let p_payload = &mut (*cmd_buf).acl_data_serial.acl_data as *mut _;
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ptr::write_volatile(
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p_cmd_serial,
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AclDataSerialStub {
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ty: packet_type as u8,
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handle: handle,
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length: payload.len() as u16,
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},
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);
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ptr::copy_nonoverlapping(payload as *const _ as *const u8, p_payload, payload.len());
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}
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}
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