user: 请将以下的汇编代码转换成C语言代码：

```asm
<init_pnp_com_seq1>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x30,%rsp
  mov    %edi,-0x24(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  movl   $0x3,-0x18(%rbp)
  mov    -0x24(%rbp),%eax
  mov    %eax,%edi
  call   <init_port@plt>
  test   %rax,%rax
  je     L44
  mov    $0x1,%eax
  jmp    L55
L44:
  mov    -0x24(%rbp),%eax
  mov    %eax,%edi
  call   <get_serial_lines@plt>
  mov    %eax,-0x14(%rbp)
  mov    D2(%rip),%rax
  mov    (%rax),%eax
  or     %eax,-0x14(%rbp)
  mov    D51(%rip),%rax
  mov    (%rax),%eax
  not    %eax
  and    %eax,-0x14(%rbp)
  mov    -0x14(%rbp),%edx
  mov    -0x24(%rbp),%eax
  mov    %edx,%esi
  mov    %eax,%edi
  call   <set_serial_lines@plt>
  mov    $0x30d40,%edi
  call   <usleep@plt>
  mov    -0x24(%rbp),%eax
  mov    %eax,%edi
  call   <get_serial_lines@plt>
  mov    %eax,%edx
  mov    D30(%rip),%rax
  mov    (%rax),%eax
  and    %edx,%eax
  mov    %eax,-0x10(%rbp)
  lea    -0x1c(%rbp),%rdx
  mov    -0x24(%rbp),%eax
  mov    %rdx,%rsi
  mov    %eax,%edi
  call   <tcgetattr@plt>
  mov    %eax,-0xc(%rbp)
  cmpl   $0x0,-0xc(%rbp)
  jns    L60
  mov    $0x1,%eax
  jmp    L55
L60:
  lea    -0x1c(%rbp),%rdx
  mov    -0x24(%rbp),%eax
  mov    $0x7,%esi
  mov    %eax,%edi
  call   <setup_serial_port@plt>
  mov    %eax,-0xc(%rbp)
  cmpl   $0x0,-0xc(%rbp)
  jns    L42
  mov    $0x1,%eax
  jmp    L55
L42:
  mov    D51(%rip),%rax
  mov    (%rax),%edx
  mov    D2(%rip),%rax
  mov    (%rax),%eax
  or     %edx,%eax
  not    %eax
  and    %eax,-0x14(%rbp)
  mov    -0x14(%rbp),%edx
  mov    -0x24(%rbp),%eax
  mov    %edx,%esi
  mov    %eax,%edi
  call   <set_serial_lines@plt>
  mov    $0x30d40,%edi
  call   <usleep@plt>
  mov    D2(%rip),%rax
  mov    (%rax),%eax
  or     %eax,-0x14(%rbp)
  mov    -0x14(%rbp),%edx
  mov    -0x24(%rbp),%eax
  mov    %edx,%esi
  mov    %eax,%edi
  call   <set_serial_lines@plt>
  mov    $0x30d40,%edi
  call   <usleep@plt>
  mov    D51(%rip),%rax
  mov    (%rax),%eax
  or     %eax,-0x14(%rbp)
  mov    -0x14(%rbp),%edx
  mov    -0x24(%rbp),%eax
  mov    %edx,%esi
  mov    %eax,%edi
  call   <set_serial_lines@plt>
  mov    $0x30d40,%edi
  call   <usleep@plt>
  mov    -0x18(%rbp),%eax
L55:
  mov    -0x8(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L50
  call   <__stack_chk_fail@plt>
L50:
  leave
  ret
```

assistant: ```c
int init_pnp_com_seq1(int fd) {
  int modem_lines;
  int temp;
  int dsr_status;
  int rc = 3;
  struct termios portattr;
  ;
  ;
  if (init_port(fd))
    return 1;
  modem_lines = get_serial_lines(fd);
  modem_lines |= TIOCM_DTR;
  modem_lines &= ~TIOCM_RTS;
  set_serial_lines(fd, modem_lines);
  usleep(200000);
  dsr_status = get_serial_lines(fd) & TIOCM_DSR;
  if (!dsr_status) {
    ;
    ;
  }
  temp = tcgetattr(fd, &portattr);
  if (temp < 0)
    return 1;
  temp = setup_serial_port(fd, 7, &portattr);
  if (temp < 0)
    return 1;
  modem_lines &= ~(TIOCM_RTS | TIOCM_DTR);
  set_serial_lines(fd, modem_lines);
  usleep(200000);
  modem_lines |= TIOCM_DTR;
  set_serial_lines(fd, modem_lines);
  usleep(200000);
  modem_lines |= TIOCM_RTS;
  set_serial_lines(fd, modem_lines);
  usleep(200000);
  return rc;
}
```