src/jtag/hla/hla_transport.c

   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 <jtag/tcl.h>
  29 #include <transport/transport.h>
  30 #include <helper/time_support.h>
  31 #include <target/target.h>
  32 #include <jtag/hla/hla_tcl.h>
  33 #include <jtag/hla/hla_transport.h>
  34 #include <jtag/hla/hla_interface.h>
  35
  36 COMMAND_HANDLER(hl_transport_jtag_command)
  37 {
  38         LOG_DEBUG("hl_transport_jtag_command");
  39
  40         return ERROR_OK;
  41 }
  42
  43 COMMAND_HANDLER(hl_transport_reset_command)
  44 {
  45         return hl_interface_init_reset();
  46 }
  47
  48 static const struct command_registration
  49 hl_swd_transport_subcommand_handlers[] = {
  50         {
  51          .name = "newdap",
  52          .mode = COMMAND_CONFIG,
  53          .jim_handler = jim_hl_newtap,
  54          .help = "declare a new SWD DAP",
  55          },
  56         COMMAND_REGISTRATION_DONE
  57 };
  58
  59 static const struct command_registration hl_swd_transport_command_handlers[] = {
  60         {
  61          .name = "swd",
  62          .mode = COMMAND_ANY,
  63          .help = "SWD command group",
  64          .usage = "",
  65          .chain = hl_swd_transport_subcommand_handlers,
  66          },
  67         COMMAND_REGISTRATION_DONE
  68 };
  69
  70 static const struct command_registration
  71 hl_transport_jtag_subcommand_handlers[] = {
  72         {
  73          .name = "newtap",
  74          .mode = COMMAND_CONFIG,
  75          .jim_handler = jim_hl_newtap,
  76          .help = "Create a new TAP instance named basename.tap_type, "
  77          "and appends it to the scan chain.",
  78          .usage = "basename tap_type '-irlen' count "
  79          "['-expected_id' number]",
  80          },
  81         {
  82          .name = "init",
  83          .mode = COMMAND_ANY,
  84          .handler = hl_transport_jtag_command,
  85          .usage = ""
  86          },
  87         {
  88          .name = "arp_init",
  89          .mode = COMMAND_ANY,
  90          .handler = hl_transport_jtag_command,
  91          .usage = ""
  92          },
  93         {
  94          .name = "arp_init-reset",
  95          .mode = COMMAND_ANY,
  96          .handler = hl_transport_reset_command,
  97          .usage = ""
  98          },
  99         {
 100          .name = "tapisenabled",
 101          .mode = COMMAND_EXEC,
 102          .jim_handler = jim_jtag_tap_enabler,
 103          },
 104         {
 105          .name = "tapenable",
 106          .mode = COMMAND_EXEC,
 107          .jim_handler = jim_jtag_tap_enabler,
 108          },
 109         {
 110          .name = "tapdisable",
 111          .mode = COMMAND_EXEC,
 112          .handler = hl_transport_jtag_command,
 113          .usage = "",
 114          },
 115         {
 116          .name = "configure",
 117          .mode = COMMAND_EXEC,
 118          .handler = hl_transport_jtag_command,
 119          .usage = "",
 120          },
 121         {
 122          .name = "cget",
 123          .mode = COMMAND_EXEC,
 124          .jim_handler = jim_jtag_configure,
 125          },
 126         {
 127          .name = "names",
 128          .mode = COMMAND_ANY,
 129          .handler = hl_transport_jtag_command,
 130          .usage = "",
 131          },
 132
 133         COMMAND_REGISTRATION_DONE
 134 };
 135
 136 static const struct command_registration hl_jtag_transport_command_handlers[] = {
 137         {
 138          .name = "jtag",
 139          .mode = COMMAND_ANY,
 140          .help = "perform jtag tap actions",
 141          .usage = "",
 142          .chain = hl_transport_jtag_subcommand_handlers,
 143          },
 144         {
 145          .name = "jtag_ntrst_delay",
 146          .mode = COMMAND_ANY,
 147          .handler = hl_transport_jtag_command,
 148          .usage = "",
 149          },
 150         COMMAND_REGISTRATION_DONE
 151 };
 152
 153
 154 static int hl_transport_init(struct command_context *cmd_ctx)
 155 {
 156         LOG_DEBUG("hl_transport_init");
 157         struct target *t = get_current_target(cmd_ctx);
 158         struct transport *transport;
 159         enum hl_transports tr;
 160
 161         if (!t) {
 162                 LOG_ERROR("no current target");
 163                 return ERROR_FAIL;
 164         }
 165
 166         transport = get_current_transport();
 167
 168         if (!transport) {
 169                 LOG_ERROR("no transport selected");
 170                 return ERROR_FAIL;
 171         }
 172
 173         LOG_DEBUG("current transport %s", transport->name);
 174
 175         /* get selected transport as enum */
 176         tr = HL_TRANSPORT_UNKNOWN;
 177
 178         if (strcmp(transport->name, "hla_swd") == 0)
 179                 tr = HL_TRANSPORT_SWD;
 180         else if (strcmp(transport->name, "hla_jtag") == 0)
 181                 tr = HL_TRANSPORT_JTAG;
 182
 183         int retval = hl_interface_open(tr);
 184
 185         if (retval != ERROR_OK)
 186                 return retval;
 187
 188         return hl_interface_init_target(t);
 189 }
 190
 191 static int hl_jtag_transport_select(struct command_context *cmd_ctx)
 192 {
 193         LOG_DEBUG("hl_jtag_transport_select");
 194
 195         /* NOTE:  interface init must already have been done.
 196          * That works with only C code ... no Tcl glue required.
 197          */
 198
 199         return register_commands(cmd_ctx, NULL,
 200                                 hl_jtag_transport_command_handlers);
 201 }
 202
 203 static int hl_swd_transport_select(struct command_context *cmd_ctx)
 204 {
 205         LOG_DEBUG("hl_swd_transport_select");
 206         return register_commands(cmd_ctx, NULL,
 207                                 hl_swd_transport_command_handlers);
 208 }
 209
 210 static struct transport hl_swd_transport = {
 211         .name = "hla_swd",
 212         .select = hl_swd_transport_select,
 213         .init = hl_transport_init,
 214         .override_target = hl_interface_override_target,
 215 };
 216
 217 static struct transport hl_jtag_transport = {
 218         .name = "hla_jtag",
 219         .select = hl_jtag_transport_select,
 220         .init = hl_transport_init,
 221         .override_target = hl_interface_override_target,
 222 };
 223
 224 const char *hl_transports[] = { "hla_swd", "hla_jtag", NULL };
 225
 226 static void hl_constructor(void) __attribute__ ((constructor));
 227 static void hl_constructor(void)
 228 {
 229         transport_register(&hl_swd_transport);
 230         transport_register(&hl_jtag_transport);
 231 }
 232
 233 bool transport_is_hla(void)
 234 {
 235         struct transport *t;
 236         t = get_current_transport();
 237         return t == &hl_swd_transport || t == &hl_jtag_transport;
 238 }