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