src/jtag/drivers/versaloon/usbtoxxx/usbtojtagraw.c

   1 /***************************************************************************
   2  *   Copyright (C) 2009 - 2010 by Simon Qian <SimonQian@SimonQian.com>     *
   3  *                                                                         *
   4  *   This program is free software; you can redistribute it and/or modify  *
   5  *   it under the terms of the GNU General Public License as published by  *
   6  *   the Free Software Foundation; either version 2 of the License, or     *
   7  *   (at your option) any later version.                                   *
   8  *                                                                         *
   9  *   This program is distributed in the hope that it will be useful,       *
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  12  *   GNU General Public License for more details.                          *
  13  *                                                                         *
  14  *   You should have received a copy of the GNU General Public License     *
  15  *   along with this program.  If not, see <http://www.gnu.org/licenses/>. *
  16  ***************************************************************************/
  17
  18 #ifdef HAVE_CONFIG_H
  19 #include "config.h"
  20 #endif
  21
  22 #include <string.h>
  23
  24 #include "../versaloon_include.h"
  25 #include "../versaloon.h"
  26 #include "../versaloon_internal.h"
  27 #include "usbtoxxx.h"
  28 #include "usbtoxxx_internal.h"
  29
  30 RESULT usbtojtagraw_init(uint8_t interface_index)
  31 {
  32         return usbtoxxx_init_command(USB_TO_JTAG_RAW, interface_index);
  33 }
  34
  35 RESULT usbtojtagraw_fini(uint8_t interface_index)
  36 {
  37         return usbtoxxx_fini_command(USB_TO_JTAG_RAW, interface_index);
  38 }
  39
  40 RESULT usbtojtagraw_config(uint8_t interface_index, uint32_t kHz)
  41 {
  42         uint8_t cfg_buf[4];
  43
  44 #if PARAM_CHECK
  45         if (interface_index > 7) {
  46                 LOG_BUG(ERRMSG_INVALID_INTERFACE_NUM, interface_index);
  47                 return ERROR_FAIL;
  48         }
  49 #endif
  50
  51         SET_LE_U32(&cfg_buf[0], kHz);
  52
  53         return usbtoxxx_conf_command(USB_TO_JTAG_RAW, interface_index, cfg_buf, 4);
  54 }
  55
  56 RESULT usbtojtagraw_execute(uint8_t interface_index, uint8_t *tdi,
  57         uint8_t *tms, uint8_t *tdo, uint32_t bitlen)
  58 {
  59         uint16_t bytelen;
  60
  61 #if PARAM_CHECK
  62         if (interface_index > 7) {
  63                 LOG_BUG(ERRMSG_INVALID_INTERFACE_NUM, interface_index);
  64                 return ERROR_FAIL;
  65         }
  66 #endif
  67
  68         if (bitlen > 8 * 0xFFFF)
  69                 return ERROR_FAIL;
  70         bytelen = (uint16_t)((bitlen + 7) >> 3);
  71
  72         SET_LE_U32(&versaloon_cmd_buf[0], bitlen);
  73         memcpy(versaloon_cmd_buf + 4, tdi, bytelen);
  74         memcpy(versaloon_cmd_buf + 4 + bytelen, tms, bytelen);
  75
  76         return usbtoxxx_inout_command(USB_TO_JTAG_RAW, interface_index,
  77                 versaloon_cmd_buf, 4 + bytelen * 2, bytelen, tdo, 0, bytelen, 0);
  78 }