git.rot13.org Git - librfid/blob - rfid_asic_rc632_14443b.c

   1
   2 #include "rc632.h"
   3
   4 int rc632_iso14443b_init(struct rc632_handle *handle)
   5 {
   6         // FIXME: some FIFO work
   7         //
   8         ret = rc632_reg_write(handle, RC632_REG_TX_CONTROL,
   9                               (RC632_TXCTRL_TX1_RF_EN |
  10                                RC632_TXCTRL_TX2_RF_EN |
  11                                RC632_TXCTRL_TX2_INV |
  12                                RC632_TXCTRL_MOD_SRC_INT));
  13
  14         ret = rc632_reg_write(handle, RC632_REG_CW_CONDUCTANCE, 0x3f);
  15
  16         ret = rc632_reg_write(handle, RC632_REG_MOD_CONDUCTANCE, 0x04);
  17
  18         ret = rc632_reg_write(handle, RC632_REG_CODE_CONTROL,
  19                               (RC632_CDRCTRL_TXCD_NRZ |
  20                                RC632_CDRCTRL_RATE_14443B));
  21
  22         ret = rc632_reg_write(handle, RC632_REG_MOD_WIDTH, 0x13);
  23
  24         ret = rc632_reg_write(handle, RC632_REG_SOF_WIDTH, 0x3f);
  25
  26         ret = rc632_reg_write(handle, RC632_REG_TYPE_B_FRAMING,
  27                               (RC632_TBFRAMING_SOF_11L_3H |
  28                                (6 << RC632_TBFRAMING_SPACE_SHIFT) |
  29                                RC632_TBFRAMING_EOF_11));
  30
  31         ret = rc632_reg_write(handle, RC632_REG_RX_CONTROL1,
  32                               (RC632_RXCTRL1_GAIN_35DB |
  33                                RC632_RXCTRL1_ISO14443 |
  34                                RC632_RXCTRL1_SUBCP_8));
  35
  36         ret = rc632_reg_write(handle, RC632_REG_DECODE_CONTROL,
  37                               (RC632_DECCTRL_BPSK |
  38                                RC632_DECCTRL_RXFR_14443B));
  39
  40         ret = rc632_reg_write(handle, RC632_REG_BIT_PHASE,
  41                                 CM5121_14443B_BITPHASE);
  42
  43         ret = rc632_reg_write(handle, RC632_REG_RX_THRESHOLD,
  44                                 CM5121_14443B_THRESHOLD);
  45
  46         ret = rc632_reg_write(handle, RC632_REG_BPSK_DEM_CONTROL,
  47                               ((0x10 & RC632_BPSKD_TAUB_MASK)<<RC632_BPSKD_TAUB_SHIFT |
  48                                (0x11 & RC632_BPSKD_TAUD_MASK)<<RC632_BPSKD_TAUD_SHIFT |
  49                                RC632_BPSKD_FILTER_AMP_DETECT |
  50                                RC632_BPSKD_NO_RX_EOF |
  51                                RC632_BPSKD_NO_RX_EGT));
  52
  53         ret = rc632_reg_write(handle, RC632_REG_RX_CONTROL2,
  54                               (RC632_RXCTRL2_AUTO_PD |
  55                                RC632_RXCTRL2_DECSRC_INT));
  56
  57         ret = rc632_reg_write(handle, RC632_REG_RX_WAIT, 0x03);
  58
  59         ret = rc632_reg_write(handle, RC632_REG_CHANNEL_RDUNDANCY,
  60                               (RC632_CR_TX_CRC_ENABLE |
  61                                RC632_CR_RX_CRC_ENABLE |
  62                                RC632_CR_CR3309));
  63
  64         ret = rc632_reg_write(handle, RC632_REG_CRC_PRESET_LSB, 0xff);
  65
  66         ret = rc632_reg_write(handle, RC632_REG_CRC_PRESET_MSB, 0xff);
  67
  68 }
  69