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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, see <http://www.gnu.org/licenses/>. *
  20  ***************************************************************************/
  21
  22 #ifdef HAVE_CONFIG_H
  23 #include "config.h"
  24 #endif
  25
  26 /* project specific includes */
  27 #include <jtag/interface.h>
  28 #include <transport/transport.h>
  29 #include <helper/time_support.h>
  30
  31 static int jim_newtap_expected_id(struct jim_nvp *n, struct jim_getopt_info *goi,
  32                                   struct jtag_tap *tap)
  33 {
  34         jim_wide w;
  35         int e = jim_getopt_wide(goi, &w);
  36         if (e != JIM_OK) {
  37                 Jim_SetResultFormatted(goi->interp, "option: %s bad parameter",
  38                                        n->name);
  39                 return e;
  40         }
  41
  42         uint32_t *p = realloc(tap->expected_ids,
  43                               (tap->expected_ids_cnt + 1) * sizeof(uint32_t));
  44         if (!p) {
  45                 Jim_SetResultFormatted(goi->interp, "no memory");
  46                 return JIM_ERR;
  47         }
  48
  49         tap->expected_ids = p;
  50         tap->expected_ids[tap->expected_ids_cnt++] = w;
  51
  52         return JIM_OK;
  53 }
  54
  55 #define NTAP_OPT_IRLEN     0
  56 #define NTAP_OPT_IRMASK    1
  57 #define NTAP_OPT_IRCAPTURE 2
  58 #define NTAP_OPT_ENABLED   3
  59 #define NTAP_OPT_DISABLED  4
  60 #define NTAP_OPT_EXPECTED_ID 5
  61 #define NTAP_OPT_VERSION   6
  62
  63 static int jim_hl_newtap_cmd(struct jim_getopt_info *goi)
  64 {
  65         struct jtag_tap *tap;
  66         int x;
  67         int e;
  68         struct jim_nvp *n;
  69         char *cp;
  70         const struct jim_nvp opts[] = {
  71                 { .name = "-irlen",       .value = NTAP_OPT_IRLEN },
  72                 { .name = "-irmask",       .value = NTAP_OPT_IRMASK },
  73                 { .name = "-ircapture",       .value = NTAP_OPT_IRCAPTURE },
  74                 { .name = "-enable",       .value = NTAP_OPT_ENABLED },
  75                 { .name = "-disable",       .value = NTAP_OPT_DISABLED },
  76                 { .name = "-expected-id",       .value = NTAP_OPT_EXPECTED_ID },
  77                 { .name = "-ignore-version",       .value = NTAP_OPT_VERSION },
  78                 { .name = NULL, .value = -1},
  79         };
  80
  81         tap = calloc(1, sizeof(struct jtag_tap));
  82         if (!tap) {
  83                 Jim_SetResultFormatted(goi->interp, "no memory");
  84                 return JIM_ERR;
  85         }
  86
  87         /*
  88          * we expect CHIP + TAP + OPTIONS
  89          * */
  90         if (goi->argc < 3) {
  91                 Jim_SetResultFormatted(goi->interp,
  92                                        "Missing CHIP TAP OPTIONS ....");
  93                 free(tap);
  94                 return JIM_ERR;
  95         }
  96
  97         const char *tmp;
  98         jim_getopt_string(goi, &tmp, NULL);
  99         tap->chip = strdup(tmp);
 100
 101         jim_getopt_string(goi, &tmp, NULL);
 102         tap->tapname = strdup(tmp);
 103
 104         /* name + dot + name + null */
 105         x = strlen(tap->chip) + 1 + strlen(tap->tapname) + 1;
 106         cp = malloc(x);
 107         sprintf(cp, "%s.%s", tap->chip, tap->tapname);
 108         tap->dotted_name = cp;
 109
 110         LOG_DEBUG("Creating New Tap, Chip: %s, Tap: %s, Dotted: %s, %d params",
 111                   tap->chip, tap->tapname, tap->dotted_name, goi->argc);
 112
 113         while (goi->argc) {
 114                 e = jim_getopt_nvp(goi, opts, &n);
 115                 if (e != JIM_OK) {
 116                         jim_getopt_nvp_unknown(goi, opts, 0);
 117                         free(cp);
 118                         free(tap);
 119                         return e;
 120                 }
 121                 LOG_DEBUG("Processing option: %s", n->name);
 122                 switch (n->value) {
 123                 case NTAP_OPT_EXPECTED_ID:
 124                         e = jim_newtap_expected_id(n, goi, tap);
 125                         if (e != JIM_OK) {
 126                                 free(cp);
 127                                 free(tap);
 128                                 return e;
 129                         }
 130                         break;
 131                 case NTAP_OPT_IRLEN:
 132                 case NTAP_OPT_IRMASK:
 133                 case NTAP_OPT_IRCAPTURE:
 134                         /* dummy read to ignore the next argument */
 135                         jim_getopt_wide(goi, NULL);
 136                         break;
 137                 }               /* switch (n->value) */
 138         }                       /* while (goi->argc) */
 139
 140         /* default is enabled-after-reset */
 141         tap->enabled = !tap->disabled_after_reset;
 142
 143         jtag_tap_init(tap);
 144         return JIM_OK;
 145 }
 146
 147 int jim_hl_newtap(Jim_Interp *interp, int argc, Jim_Obj * const *argv)
 148 {
 149         struct jim_getopt_info goi;
 150         jim_getopt_setup(&goi, interp, argc - 1, argv + 1);
 151         return jim_hl_newtap_cmd(&goi);
 152 }