user: What is the c source code of the assembly code below?

```asm
<self_config_ad9520>:
  endbr64
  push   %rbp
  push   %rbx
  sub    $0x1000,%rsp
  orq    $0x0,(%rsp)
  sub    $0x68,%rsp
  mov    %edi,%ebx
  mov    %fs:0x28,%rax
  mov    %rax,0x1058(%rsp)
  xor    %eax,%eax
  lea    0xf(%rsp),%rsi
  mov    $0x1,%edx
  mov    $0x3,%edi
  call   <ad9520_read_byte@plt>
  movzbl 0xf(%rsp),%esi
  lea    D28(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  lea    0x10(%rsp),%rbp
  movzbl 0xf(%rsp),%edi
  mov    %rbp,%rsi
  call   <decode_ad9520_id@plt>
  mov    %rbp,%rsi
  lea    D13(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  lea    0x50(%rsp),%rax
  lea    0x1050(%rsp),%rdx
L12:
  movb   $0x0,(%rax)
  add    $0x1,%rax
  cmp    %rdx,%rax
  jne    L12
  movb   $0x3c,0x60(%rsp)
  movb   $0x1,0x61(%rsp)
  movb   $0x0,0x62(%rsp)
  movb   $0x10,0x63(%rsp)
  movb   $0x17,0x64(%rsp)
  movb   $0x0,0x65(%rsp)
  movb   $0x4,0x66(%rsp)
  movb   $0x4,0x67(%rsp)
  movb   $0x86,0x68(%rsp)
  movb   $0x0,0x69(%rsp)
  movb   $0x0,0x6a(%rsp)
  movb   $0x0,0x6b(%rsp)
  movb   $0x2,0x6c(%rsp)
  movb   $0x0,0x6d(%rsp)
  movb   $0x0,0x6e(%rsp)
  movb   $0x65,0x140(%rsp)
  movb   $0x65,0x141(%rsp)
  movb   $0x65,0x142(%rsp)
  movb   $0x64,0x143(%rsp)
  movb   $0x65,0x144(%rsp)
  movb   $0x65,0x145(%rsp)
  movb   $0x65,0x146(%rsp)
  movb   $0x65,0x147(%rsp)
  movb   $0x65,0x148(%rsp)
  movb   $0x65,0x149(%rsp)
  movb   $0x65,0x14a(%rsp)
  movb   $0x65,0x14b(%rsp)
  movb   $0x0,0x14c(%rsp)
  movb   $0x0,0x14d(%rsp)
  movb   $0x11,0x1e0(%rsp)
  movb   $0x0,0x1e1(%rsp)
  movb   $0x4,0x1e2(%rsp)
  movb   $0x0,0x1e3(%rsp)
  movb   $0x80,0x1e4(%rsp)
  movb   $0x1,0x1e5(%rsp)
  movb   $0x11,0x1e6(%rsp)
  movb   $0x0,0x1e7(%rsp)
  movb   $0x4,0x1e8(%rsp)
  movb   $0x0,0x1e9(%rsp)
  movb   $0x0,0x1ea(%rsp)
  movb   $0x4,0x1eb(%rsp)
  test   %ebx,%ebx
  sete   %al
  add    %eax,%eax
  mov    %al,0x230(%rsp)
  movb   $0x22,0x231(%rsp)
  movb   $0x0,0x280(%rsp)
  movb   $0x0,0x282(%rsp)
  movb   $0x22,0x50(%rsp)
  lea    0x50(%rsp),%rsi
  mov    $0x1,%edx
  mov    $0x0,%edi
  call   <ad9520_write_byte@plt>
  movb   $0x0,0x50(%rsp)
  mov    $0x2710,%edi
  call   <usleep@plt>
  lea    0x60(%rsp),%rsi
  mov    $0xf,%edx
  mov    $0x10,%edi
  call   <ad9520_write_byte@plt>
  lea    0x140(%rsp),%rsi
  mov    $0xe,%edx
  mov    $0xf0,%edi
  call   <ad9520_write_byte@plt>
  lea    0x1e0(%rsp),%rsi
  mov    $0xc,%edx
  mov    $0x190,%edi
  call   <ad9520_write_byte@plt>
  lea    0x230(%rsp),%rsi
  mov    $0x2,%edx
  mov    $0x1e0,%edi
  call   <ad9520_write_byte@plt>
  lea    0x280(%rsp),%rsi
  mov    $0x1,%edx
  mov    $0x230,%edi
  call   <ad9520_write_byte@plt>
  movb   $0x1,0x282(%rsp)
  lea    0x282(%rsp),%rbx
  mov    $0x1,%edx
  mov    %rbx,%rsi
  mov    $0x232,%edi
  call   <ad9520_write_byte@plt>
  andb   $0xfe,0x68(%rsp)
  lea    0x68(%rsp),%rbp
  mov    $0x1,%edx
  mov    %rbp,%rsi
  mov    $0x18,%edi
  call   <ad9520_write_byte@plt>
  movb   $0x1,0x282(%rsp)
  mov    $0x1,%edx
  mov    %rbx,%rsi
  mov    $0x232,%edi
  call   <ad9520_write_byte@plt>
  orb    $0x1,0x68(%rsp)
  mov    $0x1,%edx
  mov    %rbp,%rsi
  mov    $0x18,%edi
  call   <ad9520_write_byte@plt>
  movb   $0x1,0x282(%rsp)
  mov    $0x1,%edx
  mov    %rbx,%rsi
  mov    $0x232,%edi
  call   <ad9520_write_byte@plt>
  movb   $0x0,0xf(%rsp)
  mov    $0x0,%ebx
  lea    0xf(%rsp),%rbp
L15:
  mov    $0x1,%edx
  mov    %rbp,%rsi
  mov    $0x1f,%edi
  call   <ad9520_read_byte@plt>
  add    $0x1,%ebx
  testb  $0x40,0xf(%rsp)
  jne    L55
  cmp    $0x3e7,%ebx
  jle    L15
L55:
  mov    $0x0,%eax
  cmp    $0x3e7,%ebx
  jg     L35
L39:
  mov    0x1058(%rsp),%rdx
  sub    %fs:0x28,%rdx
  jne    L41
  add    $0x1068,%rsp
  pop    %rbx
  pop    %rbp
  ret
L35:
  lea    D15(%rip),%rdi
  call   <puts@plt>
  mov    $0x1,%eax
  jmp    L39
L41:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: retrieve_data
arguments: data_label: D28
datatype: string
name: retrieve_data
arguments: data_label: D13
datatype: string
name: retrieve_data
arguments: data_label: D15
datatype: string

tool: D28: AD9520 part ID: %02x = 

tool: D13: %s

tool: D15: Calibration timed out!

assistant: ```c
int self_config_ad9520(int speed) {
  unsigned char cache[4096];
  int i;
  unsigned char data;
  unsigned char idbuf[64];
  ad9520_read_byte(0x003, &data, 1);
  printf("AD9520 part ID: %02x = ", data);
  decode_ad9520_id(data, (char *)idbuf);
  printf("%s", idbuf);
  for (i = 0; i < 4096; i++) {
    cache[i] = 0;
  }
  cache[0x010] = 0x3c;
  cache[0x011] = 0x01;
  cache[0x012] = 0x00;
  cache[0x013] = 16;
  cache[0x014] = 23;
  cache[0x015] = 0x00;
  cache[0x016] = 0x04;
  cache[0x017] = 0x04;
  cache[0x018] = 0x86;
  cache[0x019] = 0x00;
  cache[0x01A] = 0x00;
  cache[0x01B] = 0x00;
  cache[0x01C] = 0x02;
  cache[0x01D] = 0x00;
  cache[0x01E] = 0x00;
  cache[0x0F0] = 0x65;
  cache[0x0F1] = 0x65;
  cache[0x0F2] = 0x65;
  cache[0x0F3] = 0x64;
  cache[0x0F4] = 0x65;
  cache[0x0F5] = 0x65;
  cache[0x0F6] = 0x65;
  cache[0x0F7] = 0x65;
  cache[0x0F8] = 0x65;
  cache[0x0F9] = 0x65;
  cache[0x0FA] = 0x65;
  cache[0x0FB] = 0x65;
  cache[0x0FC] = 0x00;
  cache[0x0FD] = 0x00;
  cache[0x190] = 0x11;
  cache[0x191] = 0x00;
  cache[0x192] = 0x04;
  cache[0x193] = 0x00;
  cache[0x194] = 0x80;
  cache[0x195] = 0x01;
  cache[0x196] = 0x11;
  cache[0x197] = 0x00;
  cache[0x198] = 0x04;
  cache[0x199] = 0x00;
  cache[0x19A] = 0x00;
  cache[0x19B] = 0x04;
  if (speed)
    cache[0x1E0] = 0x00;
  else
    cache[0x1E0] = 0x02;
  cache[0x1E1] = 0x22;
  cache[0x230] = 0x00;
  cache[0x232] = 0;
  do {
  } while (0);
  cache[0x000] = 0x22;
  ad9520_write_byte(0x000, &(cache[0x000]), 1);
  cache[0x000] = 0x00;
  usleep(10000);
  do {
  } while (0);
  ad9520_write_byte(0x010, &(cache[0x010]), 0x01F - 0x010);
  do {
  } while (0);
  ad9520_write_byte(0x0F0, &(cache[0x0F0]), 0x0FD - 0x0F0 + 1);
  do {
  } while (0);
  ad9520_write_byte(0x190, &(cache[0x190]), 0x19B - 0x190 + 1);
  do {
  } while (0);
  ad9520_write_byte(0x1E0, &(cache[0x1E0]), 0x1E1 - 0x1E0 + 1);
  do {
  } while (0);
  ad9520_write_byte(0x230, &(cache[0x230]), 0x230 - 0x230 + 1);
  do {
  } while (0);
  cache[0x232] = 1;
  ad9520_write_byte(0x232, &(cache[0x232]), 1);
  do {
  } while (0);
  cache[0x018] &= 0xFE;
  ad9520_write_byte(0x018, &(cache[0x018]), 1);
  cache[0x232] = 1;
  ad9520_write_byte(0x232, &(cache[0x232]), 1);
  cache[0x018] |= 0x01;
  ad9520_write_byte(0x018, &(cache[0x018]), 1);
  cache[0x232] = 1;
  ad9520_write_byte(0x232, &(cache[0x232]), 1);
  data = 0;
  i = 0;
  do {
    ad9520_read_byte(0x01F, &data, 1);
    i++;
  } while (((data & 0x40) == 0) && (i < 1000));
  if (i >= 1000) {
    printf("Calibration timed out!\n");
    return 1;
  }
  return 0;
}
```