ft2232.c

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  cx_cmd_push( cmd_root, params->low_byte_value | BITMASK_TMS );
  cx_cmd_push( cmd_root, params->low_byte_dir | BITMASK_TCK | BITMASK_TDI | BITMASK_TMS );

  /* Set Data Bits High Byte
     default:
     TRST = 1
     TRST buffer enable = 0
     SRST = 1
     SRST buffer enable = 0 */
  params->high_byte_value_trst_active   = BITMASK_OOCDLINKS_nSRST;
  params->high_byte_value_trst_inactive = BITMASK_OOCDLINKS_nTRST
    | BITMASK_OOCDLINKS_nSRST;
  params->high_byte_dir                 = BITMASK_OOCDLINKS_nTRST
    | BITMASK_OOCDLINKS_nTRST_nOE
    | BITMASK_OOCDLINKS_nSRST
    | BITMASK_OOCDLINKS_nSRST_nOE;
  cx_cmd_push( cmd_root, SET_BITS_HIGH );
  cx_cmd_push( cmd_root, params->high_byte_value_trst_inactive );
  cx_cmd_push( cmd_root, 0 );
  cx_cmd_push( cmd_root, SET_BITS_HIGH );
  cx_cmd_push( cmd_root, params->high_byte_value_trst_inactive );
  cx_cmd_push( cmd_root, params->high_byte_dir );

  ft2232_set_frequency( cable, FT2232_MAX_TCK_FREQ );

  params->last_tdo_valid = 0;

  return 0;
}


static int
ft2232_turtelizer2_init( cable_t *cable )
{
  params_t *params = (params_t *)cable->params;
  cx_cmd_root_t *cmd_root = &(params->cmd_root);

  if (usbconn_open( cable->link.usb )) return -1;

  /* static low byte value and direction:
     set nJTAGOE to '0' -> activate output enables
     set RST to 0 -> inactive nSRST */
  params->low_byte_value = 0;
  params->low_byte_dir   = BITMASK_TURTELIZER2_nJTAGOE | BITMASK_TURTELIZER2_RST;

  /* Set Data Bits Low Byte
     TCK = 0, TMS = 1, TDI = 0 */
  cx_cmd_queue( cmd_root, 0 );
  cx_cmd_push( cmd_root, SET_BITS_LOW );
  cx_cmd_push( cmd_root, params->low_byte_value | BITMASK_TMS );
  cx_cmd_push( cmd_root, params->low_byte_dir | BITMASK_TCK | BITMASK_TDI | BITMASK_TMS );

  /* Set Data Bits High Byte
     default:
     TX1LED on
     RX1LED on */
  params->high_byte_value_trst_active   = 0;
  params->high_byte_value_trst_inactive = 0;
  params->high_byte_dir                 = BITMASK_TURTELIZER2_nTX1LED | BITMASK_TURTELIZER2_nRX1LED;
  cx_cmd_push( cmd_root, SET_BITS_HIGH );
  cx_cmd_push( cmd_root, params->high_byte_value_trst_inactive );
  cx_cmd_push( cmd_root, params->high_byte_dir );

  ft2232_set_frequency( cable, FT2232_MAX_TCK_FREQ );

  params->last_tdo_valid = 0;

  return 0;
}


static int
ft2232_usbtojtagif_init( cable_t *cable )
{
  params_t *params = (params_t *)cable->params;
  cx_cmd_root_t *cmd_root = &(params->cmd_root);

  if (usbconn_open( cable->link.usb )) return -1;

  /* static low byte value and direction:
     nTRST = 1, RST = 1, DBGRQ = 0 */
  params->low_byte_value = BITMASK_USBTOJTAGIF_nTRST | BITMASK_USBTOJTAGIF_RST;
  params->low_byte_dir   = BITMASK_USBTOJTAGIF_nTRST | BITMASK_USBTOJTAGIF_RST | BITMASK_USBTOJTAGIF_DBGRQ;

  /* Set Data Bits Low Byte
     TCK = 0, TMS = 1, TDI = 0 */
  cx_cmd_queue( cmd_root, 0 );
  cx_cmd_push( cmd_root, SET_BITS_LOW );
  cx_cmd_push( cmd_root, params->low_byte_value | BITMASK_TMS );
  cx_cmd_push( cmd_root, params->low_byte_dir | BITMASK_TCK | BITMASK_TDI | BITMASK_TMS );

  /* Set Data Bits High Byte
     default:
     RxLED on
     TxLED on */
  params->high_byte_value_trst_active   = 0;
  params->high_byte_value_trst_inactive = 0;
  params->high_byte_dir                 = BITMASK_USBTOJTAGIF_nRxLED | BITMASK_USBTOJTAGIF_nTxLED;
  cx_cmd_push( cmd_root, SET_BITS_HIGH );
  cx_cmd_push( cmd_root, params->high_byte_value_trst_inactive );
  cx_cmd_push( cmd_root, params->high_byte_dir );

  /* I-couplers can only work up to 3 MHz
     ref. http://www.hs-augsburg.de/~hhoegl/proj/usbjtag/usbjtag.html */
  ft2232_set_frequency( cable, FT2232_MAX_TCK_FREQ/2 );

  params->last_tdo_valid = 0;

  return 0;
}


static int
ft2232_signalyzer_init( cable_t *cable )
{
  params_t *params = (params_t *)cable->params;
  cx_cmd_root_t *cmd_root = &(params->cmd_root);

  if (usbconn_open( cable->link.usb )) return -1;

  /* static low byte value and direction:
     nTRST = 1, RST = 1, DBGRQ = 0 */
  params->low_byte_value = BITMASK_SIGNALYZER_nTRST | BITMASK_SIGNALYZER_nSRST;
  params->low_byte_dir   = BITMASK_SIGNALYZER_nTRST | BITMASK_SIGNALYZER_nSRST;

  /* Set Data Bits Low Byte
     TCK = 0, TMS = 1, TDI = 0 */
  cx_cmd_queue( cmd_root, 0 );
  cx_cmd_push( cmd_root, SET_BITS_LOW );
  cx_cmd_push( cmd_root, params->low_byte_value | BITMASK_TMS );
  cx_cmd_push( cmd_root, params->low_byte_dir | BITMASK_TCK | BITMASK_TDI | BITMASK_TMS );

  /* Set Data Bits High Byte */
  params->high_byte_value_trst_active   = 0;
  params->high_byte_value_trst_inactive = 0;
  params->high_byte_dir                 = 0;
  cx_cmd_push( cmd_root, SET_BITS_HIGH );
  cx_cmd_push( cmd_root, params->high_byte_value_trst_inactive );
  cx_cmd_push( cmd_root, params->high_byte_dir );

  ft2232_set_frequency( cable, FT2232_MAX_TCK_FREQ );

  params->last_tdo_valid = 0;

  return 0;
}


static void
ft2232_generic_done( cable_t *cable )
{
  params_t *params = (params_t *)cable->params;
  cx_cmd_root_t *cmd_root = &(params->cmd_root);

  /* Set Data Bits Low Byte
     set all to input */
  cx_cmd_queue( cmd_root, 0 );
  cx_cmd_push( cmd_root, SET_BITS_LOW );
  cx_cmd_push( cmd_root, 0 );
  cx_cmd_push( cmd_root, 0 );

  /* Set Data Bits High Byte
     set all to input */
  cx_cmd_push( cmd_root, SET_BITS_HIGH );
  cx_cmd_push( cmd_root, 0 );
  cx_cmd_push( cmd_root, 0 );
  cx_xfer( cmd_root, &imm_cmd, cable, COMPLETELY );

  generic_usbconn_done( cable );
}


static void
ft2232_jtagkey_done( cable_t *cable )
{
  params_t *params = (params_t *)cable->params;
  cx_cmd_root_t *cmd_root = &(params->cmd_root);

  /* Set Data Bits Low Byte
     disable output drivers */
  cx_cmd_queue( cmd_root, 0 );
  cx_cmd_push( cmd_root, SET_BITS_LOW );
  cx_cmd_push( cmd_root, BITMASK_JTAGKEY_nOE );
  cx_cmd_push( cmd_root, BITMASK_JTAGKEY_nOE );

  /* Set Data Bits Low Byte
     set all to input */
  cx_cmd_push( cmd_root, SET_BITS_LOW );
  cx_cmd_push( cmd_root, BITMASK_JTAGKEY_nOE );
  cx_cmd_push( cmd_root, 0 );

  /* Set Data Bits High Byte
     disable output drivers */
  cx_cmd_push( cmd_root, SET_BITS_HIGH );
  cx_cmd_push( cmd_root,
               BITMASK_JTAGKEY_TRST_N_OUT
               | BITMASK_JTAGKEY_TRST_N_OE_N
               | BITMASK_JTAGKEY_SRST_N_OUT
               | BITMASK_JTAGKEY_SRST_N_OE_N );
  cx_cmd_push( cmd_root,
               BITMASK_JTAGKEY_TRST_N_OUT
               | BITMASK_JTAGKEY_TRST_N_OE_N
               | BITMASK_JTAGKEY_SRST_N_OUT
               | BITMASK_JTAGKEY_SRST_N_OE_N );

  /* Set Data Bits High Byte
     set all to input */
  cx_cmd_push( cmd_root, SET_BITS_HIGH );
  cx_cmd_push( cmd_root,
               BITMASK_JTAGKEY_TRST_N_OUT
               | BITMASK_JTAGKEY_TRST_N_OE_N
               | BITMASK_JTAGKEY_SRST_N_OUT
               | BITMASK_JTAGKEY_SRST_N_OE_N );
  cx_cmd_push( cmd_root, 0 );
  cx_xfer( cmd_root, &imm_cmd, cable, COMPLETELY );

  generic_usbconn_done( cable );
}


static void
ft2232_armusbocd_done( cable_t *cable )
{
  params_t *params = (params_t *)cable->params;
  cx_cmd_root_t *cmd_root = &(params->cmd_root);

  /* Set Data Bits Low Byte
     disable output drivers */
  cx_cmd_queue( cmd_root, 0 );
  cx_cmd_push( cmd_root, SET_BITS_LOW );
  cx_cmd_push( cmd_root, BITMASK_ARMUSBOCD_nOE );
  cx_cmd_push( cmd_root, BITMASK_ARMUSBOCD_nOE );

  /* Set Data Bits Low Byte
     set all to input */
  cx_cmd_push( cmd_root, SET_BITS_LOW );
  cx_cmd_push( cmd_root, BITMASK_ARMUSBOCD_nOE );
  cx_cmd_push( cmd_root, 0 );

  /* Set Data Bits High Byte
     disable output drivers */
  cx_cmd_push( cmd_root, SET_BITS_HIGH );
  cx_cmd_push( cmd_root,
               BITMASK_ARMUSBOCD_nTRST
               | BITMASK_ARMUSBOCD_nTRST_nOE
               | BITMASK_ARMUSBOCD_nTSRST );
  cx_cmd_push( cmd_root,
               BITMASK_ARMUSBOCD_nTRST
               | BITMASK_ARMUSBOCD_nTRST_nOE
               | BITMASK_ARMUSBOCD_nTSRST
               | BITMASK_ARMUSBOCD_RED_LED );

  /* Set Data Bits High Byte
     set all to input */
  cx_cmd_push( cmd_root, SET_BITS_HIGH );
  cx_cmd_push( cmd_root,
               BITMASK_ARMUSBOCD_nTRST
               | BITMASK_ARMUSBOCD_nTRST_nOE
               | BITMASK_ARMUSBOCD_nTSRST );
  cx_cmd_push( cmd_root, 0 );
  cx_xfer( cmd_root, &imm_cmd, cable, COMPLETELY );

  generic_usbconn_done( cable );
}

static void
ft2232_gnice_done( cable_t *cable )
{
  params_t *params = (params_t *)cable->params;
  cx_cmd_root_t *cmd_root = &(params->cmd_root);

  /* Set Data Bits Low Byte
     disable output drivers */
  cx_cmd_queue( cmd_root, 0 );
  cx_cmd_push( cmd_root, SET_BITS_LOW );
  cx_cmd_push( cmd_root, 0 );
  cx_cmd_push( cmd_root, 0 );

  /* Set Data Bits High Byte
     disable output drivers */
  cx_cmd_push( cmd_root, SET_BITS_HIGH );
  cx_cmd_push( cmd_root, BITMASK_GNICE_nTRST);
  cx_cmd_push( cmd_root, BITMASK_GNICE_nTRST | BITMASK_GNICE_nLED);

  /* Set Data Bits High Byte
     set all to input */
  cx_cmd_push( cmd_root, SET_BITS_HIGH );
  cx_cmd_push( cmd_root, BITMASK_GNICE_nTRST);
  cx_cmd_push( cmd_root, 0 );
  cx_xfer( cmd_root, &imm_cmd, cable, COMPLETELY );

  generic_usbconn_done( cable );
}

static void
ft2232_oocdlinks_done( cable_t *cable )
{
  params_t *params = (params_t *)cable->params;
  cx_cmd_root_t *cmd_root = &(params->cmd_root);

  /* Set Data Bits Low Byte
     set all to input */
  cx_cmd_queue( cmd_root, 0 );
  cx_cmd_push( cmd_root, SET_BITS_LOW );
  cx_cmd_push( cmd_root, 0 );
  cx_cmd_push( cmd_root, 0 );

  /* Set Data Bits High Byte
     disable output drivers */
  cx_cmd_push( cmd_root, SET_BITS_HIGH );
  cx_cmd_push( cmd_root,
               BITMASK_OOCDLINKS_nTRST
               | BITMASK_OOCDLINKS_nTRST_nOE
               | BITMASK_OOCDLINKS_nSRST
               | BITMASK_OOCDLINKS_nSRST_nOE );
  cx_cmd_push( cmd_root,
               BITMASK_OOCDLINKS_nTRST
               | BITMASK_OOCDLINKS_nTRST_nOE
               | BITMASK_OOCDLINKS_nSRST
               | BITMASK_OOCDLINKS_nSRST_nOE );

  /* Set Data Bits High Byte
     set all to input */
  cx_cmd_push( cmd_root, SET_BITS_HIGH );
  cx_cmd_push( cmd_root,
               BITMASK_OOCDLINKS_nTRST
               | BITMASK_OOCDLINKS_nTRST_nOE
               | BITMASK_OOCDLINKS_nSRST
               | BITMASK_OOCDLINKS_nSRST_nOE );
  cx_cmd_push( cmd_root, 0 );
  cx_xfer( cmd_root, &imm_cmd, cable, COMPLETELY );

  generic_usbconn_done( cable );
}


static void
ft2232_turtelizer2_done( cable_t *cable )
{
  params_t *params = (params_t *)cable->params;
  cx_cmd_root_t *cmd_root = &(params->cmd_root);

  /* Set Data Bits Low Byte
     disable output drivers */
  cx_cmd_queue( cmd_root, 0 );
  cx_cmd_push( cmd_root, SET_BITS_LOW );
  cx_cmd_push( cmd_root, BITMASK_TURTELIZER2_nJTAGOE );
  cx_cmd_push( cmd_root, BITMASK_TURTELIZER2_nJTAGOE );

  /* Set Data Bits Low Byte
     set all to input */
  cx_cmd_push( cmd_root, SET_BITS_LOW );
  cx_cmd_push( cmd_root, BITMASK_TURTELIZER2_nJTAGOE );
  cx_cmd_push( cmd_root, 0 );

  /* Set Data Bits High Byte
     switch off LEDs */
  cx_cmd_push( cmd_root, SET_BITS_HIGH );
  cx_cmd_push( cmd_root, BITMASK_TURTELIZER2_nTX1LED | BITMASK_TURTELIZER2_nRX1LED );
  cx_cmd_push( cmd_root, BITMASK_TURTELIZER2_nTX1LED | BITMASK_TURTELIZER2_nRX1LED );

  /* Set Data Bits High Byte
     set all to input */
  cx_cmd_push( cmd_root, SET_BITS_HIGH );
  cx_cmd_push( cmd_root, 0 );
  cx_cmd_push( cmd_root, 0 );
  cx_xfer( cmd_root, &imm_cmd, cable, COMPLETELY );

  generic_usbconn_done( cable );
}


static void
ft2232_usbtojtagif_done( cable_t *cable )
{
  params_t *params = (params_t *)cable->params;
  cx_cmd_root_t *cmd_root = &(params->cmd_root);

  /* Set Data Bits Low Byte
     set all to input */
  cx_cmd_queue( cmd_root, 0 );
  cx_cmd_push( cmd_root, SET_BITS_LOW );
  cx_cmd_push( cmd_root, BITMASK_USBTOJTAGIF_nTRST | BITMASK_USBTOJTAGIF_RST );
  cx_cmd_push( cmd_root, 0 );

  /* Set Data Bits High Byte
     disable output drivers */
  cx_cmd_push( cmd_root, SET_BITS_HIGH );
  cx_cmd_push( cmd_root, BITMASK_USBTOJTAGIF_nRxLED | BITMASK_USBTOJTAGIF_nTxLED );
  cx_cmd_push( cmd_root, BITMASK_USBTOJTAGIF_nRxLED | BITMASK_USBTOJTAGIF_nTxLED );

  /* Set Data Bits High Byte
     set all to input */
  cx_cmd_push( cmd_root, SET_BITS_HIGH );
  cx_cmd_push( cmd_root, BITMASK_USBTOJTAGIF_nRxLED | BITMASK_USBTOJTAGIF_nTxLED );
  cx_cmd_push( cmd_root, 0 );
  cx_xfer( cmd_root, &imm_cmd, cable, COMPLETELY );

  generic_usbconn_done( cable );
}


static void
ft2232_signalyzer_done( cable_t *cable )
{
  params_t *params = (params_t *)cable->params;
  cx_cmd_root_t *cmd_root = &(params->cmd_root);

  /* Set Data Bits Low Byte
     set all to input */
  cx_cmd_queue( cmd_root, 0 );