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   1 /***************************************************************************
   2  *   Copyright (C) 2011 by Mathias Kuester                                 *
   3  *   Mathias Kuester <kesmtp@freenet.de>                                   *
   4  *                                                                         *
   5  *   Copyright (C) 2012 by Spencer Oliver                                  *
   6  *   spen@spen-soft.co.uk                                                  *
   7  *                                                                         *
   8  *   This program is free software; you can redistribute it and/or modify  *
   9  *   it under the terms of the GNU General Public License as published by  *
  10  *   the Free Software Foundation; either version 2 of the License, or     *
  11  *   (at your option) any later version.                                   *
  12  *                                                                         *
  13  *   This program is distributed in the hope that it will be useful,       *
  14  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  15  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  16  *   GNU General Public License for more details.                          *
  17  *                                                                         *
  18  *   You should have received a copy of the GNU General Public License     *
  19  *   along with this program; if not, write to the                         *
  20  *   Free Software Foundation, Inc.,                                       *
  21  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.           *
  22  ***************************************************************************/
  23
  24 #ifdef HAVE_CONFIG_H
  25 #include "config.h"
  26 #endif
  27
  28 /* project specific includes */
  29 #include <jtag/interface.h>
  30 #include <transport/transport.h>
  31 #include <helper/time_support.h>
  32
  33 static int jim_newtap_expected_id(Jim_Nvp *n, Jim_GetOptInfo *goi,
  34                                   struct jtag_tap *pTap)
  35 {
  36         jim_wide w;
  37         int e = Jim_GetOpt_Wide(goi, &w);
  38         if (e != JIM_OK) {
  39                 Jim_SetResultFormatted(goi->interp, "option: %s bad parameter",
  40                                        n->name);
  41                 return e;
  42         }
  43
  44         unsigned expected_len = sizeof(uint32_t) * pTap->expected_ids_cnt;
  45         uint32_t *new_expected_ids = malloc(expected_len + sizeof(uint32_t));
  46         if (new_expected_ids == NULL) {
  47                 Jim_SetResultFormatted(goi->interp, "no memory");
  48                 return JIM_ERR;
  49         }
  50
  51         memcpy(new_expected_ids, pTap->expected_ids, expected_len);
  52
  53         new_expected_ids[pTap->expected_ids_cnt] = w;
  54
  55         free(pTap->expected_ids);
  56         pTap->expected_ids = new_expected_ids;
  57         pTap->expected_ids_cnt++;
  58
  59         return JIM_OK;
  60 }
  61
  62 #define NTAP_OPT_IRLEN     0
  63 #define NTAP_OPT_IRMASK    1
  64 #define NTAP_OPT_IRCAPTURE 2
  65 #define NTAP_OPT_ENABLED   3
  66 #define NTAP_OPT_DISABLED  4
  67 #define NTAP_OPT_EXPECTED_ID 5
  68 #define NTAP_OPT_VERSION   6
  69
  70 static int jim_hl_newtap_cmd(Jim_GetOptInfo *goi)
  71 {
  72         struct jtag_tap *pTap;
  73         int x;
  74         int e;
  75         Jim_Nvp *n;
  76         char *cp;
  77         const Jim_Nvp opts[] = {
  78                 { .name = "-irlen",       .value = NTAP_OPT_IRLEN },
  79                 { .name = "-irmask",       .value = NTAP_OPT_IRMASK },
  80                 { .name = "-ircapture",       .value = NTAP_OPT_IRCAPTURE },
  81                 { .name = "-enable",       .value = NTAP_OPT_ENABLED },
  82                 { .name = "-disable",       .value = NTAP_OPT_DISABLED },
  83                 { .name = "-expected-id",       .value = NTAP_OPT_EXPECTED_ID },
  84                 { .name = "-ignore-version",       .value = NTAP_OPT_VERSION },
  85                 { .name = NULL, .value = -1},
  86         };
  87
  88         pTap = calloc(1, sizeof(struct jtag_tap));
  89         if (!pTap) {
  90                 Jim_SetResultFormatted(goi->interp, "no memory");
  91                 return JIM_ERR;
  92         }
  93
  94         /*
  95          * we expect CHIP + TAP + OPTIONS
  96          * */
  97         if (goi->argc < 3) {
  98                 Jim_SetResultFormatted(goi->interp,
  99                                        "Missing CHIP TAP OPTIONS ....");
 100                 free(pTap);
 101                 return JIM_ERR;
 102         }
 103         Jim_GetOpt_String(goi, &cp, NULL);
 104         pTap->chip = strdup(cp);
 105
 106         Jim_GetOpt_String(goi, &cp, NULL);
 107         pTap->tapname = strdup(cp);
 108
 109         /* name + dot + name + null */
 110         x = strlen(pTap->chip) + 1 + strlen(pTap->tapname) + 1;
 111         cp = malloc(x);
 112         sprintf(cp, "%s.%s", pTap->chip, pTap->tapname);
 113         pTap->dotted_name = cp;
 114
 115         LOG_DEBUG("Creating New Tap, Chip: %s, Tap: %s, Dotted: %s, %d params",
 116                   pTap->chip, pTap->tapname, pTap->dotted_name, goi->argc);
 117
 118         while (goi->argc) {
 119                 e = Jim_GetOpt_Nvp(goi, opts, &n);
 120                 if (e != JIM_OK) {
 121                         Jim_GetOpt_NvpUnknown(goi, opts, 0);
 122                         free(cp);
 123                         free(pTap);
 124                         return e;
 125                 }
 126                 LOG_DEBUG("Processing option: %s", n->name);
 127                 switch (n->value) {
 128                 case NTAP_OPT_EXPECTED_ID:
 129                         e = jim_newtap_expected_id(n, goi, pTap);
 130                         if (JIM_OK != e) {
 131                                 free(cp);
 132                                 free(pTap);
 133                                 return e;
 134                         }
 135                         break;
 136                 case NTAP_OPT_IRLEN:
 137                 case NTAP_OPT_IRMASK:
 138                 case NTAP_OPT_IRCAPTURE:
 139                         /* dummy read to ignore the next argument */
 140                         Jim_GetOpt_Wide(goi, NULL);
 141                         break;
 142                 }               /* switch (n->value) */
 143         }                       /* while (goi->argc) */
 144
 145         /* default is enabled-after-reset */
 146         pTap->enabled = !pTap->disabled_after_reset;
 147
 148         jtag_tap_init(pTap);
 149         return JIM_OK;
 150 }
 151
 152 int jim_hl_newtap(Jim_Interp *interp, int argc, Jim_Obj * const *argv)
 153 {
 154         Jim_GetOptInfo goi;
 155         Jim_GetOpt_Setup(&goi, interp, argc - 1, argv + 1);
 156         return jim_hl_newtap_cmd(&goi);
 157 }