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          .name = "init",
  67          .mode = COMMAND_ANY,
  68          .handler = hl_transport_jtag_command,
  69          .usage = ""
  70          },
  71         {
  72          .name = "arp_init",
  73          .mode = COMMAND_ANY,
  74          .handler = hl_transport_jtag_command,
  75          .usage = ""
  76          },
  77         {
  78          .name = "arp_init-reset",
  79          .mode = COMMAND_ANY,
  80          .handler = hl_transport_reset_command,
  81          .usage = ""
  82          },
  83         {
  84          .name = "tapisenabled",
  85          .mode = COMMAND_EXEC,
  86          .jim_handler = jim_jtag_tap_enabler,
  87          },
  88         {
  89          .name = "tapenable",
  90          .mode = COMMAND_EXEC,
  91          .jim_handler = jim_jtag_tap_enabler,
  92          },
  93         {
  94          .name = "tapdisable",
  95          .mode = COMMAND_EXEC,
  96          .handler = hl_transport_jtag_command,
  97          .usage = "",
  98          },
  99         {
 100          .name = "configure",
 101          .mode = COMMAND_EXEC,
 102          .handler = hl_transport_jtag_command,
 103          .usage = "",
 104          },
 105         {
 106          .name = "cget",
 107          .mode = COMMAND_EXEC,
 108          .jim_handler = jim_jtag_configure,
 109          },
 110         {
 111          .name = "names",
 112          .mode = COMMAND_ANY,
 113          .handler = hl_transport_jtag_command,
 114          .usage = "",
 115          },
 116
 117         COMMAND_REGISTRATION_DONE
 118 };
 119
 120 static const struct command_registration stlink_transport_command_handlers[] = {
 121
 122         {
 123          .name = "hla",
 124          .mode = COMMAND_ANY,
 125          .help = "perform hl adapter actions",
 126          .usage = "",
 127          .chain = hl_transport_stlink_subcommand_handlers,
 128          },
 129         {
 130          .name = "jtag",
 131          .mode = COMMAND_ANY,
 132          .usage = "",
 133          .chain = hl_transport_jtag_subcommand_handlers,
 134          },
 135         {
 136          .name = "jtag_ntrst_delay",
 137          .mode = COMMAND_ANY,
 138          .handler = hl_transport_jtag_command,
 139          .usage = "",
 140          },
 141         COMMAND_REGISTRATION_DONE
 142 };
 143
 144 static int hl_transport_register_commands(struct command_context *cmd_ctx)
 145 {
 146         return register_commands(cmd_ctx, NULL,
 147                                  stlink_transport_command_handlers);
 148 }
 149
 150 static int hl_transport_init(struct command_context *cmd_ctx)
 151 {
 152         LOG_DEBUG("hl_transport_init");
 153         struct target *t = get_current_target(cmd_ctx);
 154         struct transport *transport;
 155         enum hl_transports tr;
 156
 157         if (!t) {
 158                 LOG_ERROR("no current target");
 159                 return ERROR_FAIL;
 160         }
 161
 162         transport = get_current_transport();
 163
 164         if (!transport) {
 165                 LOG_ERROR("no transport selected");
 166                 return ERROR_FAIL;
 167         }
 168
 169         LOG_DEBUG("current transport %s", transport->name);
 170
 171         /* get selected transport as enum */
 172         tr = HL_TRANSPORT_UNKNOWN;
 173
 174         if (strcmp(transport->name, "hla_swd") == 0)
 175                 tr = HL_TRANSPORT_SWD;
 176         else if (strcmp(transport->name, "hla_jtag") == 0)
 177                 tr = HL_TRANSPORT_JTAG;
 178
 179         int retval = hl_interface_open(tr);
 180
 181         if (retval != ERROR_OK)
 182                 return retval;
 183
 184         return hl_interface_init_target(t);
 185 }
 186
 187 static int hl_transport_select(struct command_context *ctx)
 188 {
 189         LOG_DEBUG("hl_transport_select");
 190
 191         int retval;
 192
 193         /* NOTE:  interface init must already have been done.
 194          * That works with only C code ... no Tcl glue required.
 195          */
 196
 197         retval = hl_transport_register_commands(ctx);
 198
 199         if (retval != ERROR_OK)
 200                 return retval;
 201
 202         return ERROR_OK;
 203 }
 204
 205 static struct transport hl_swd_transport = {
 206         .name = "hla_swd",
 207         .select = hl_transport_select,
 208         .init = hl_transport_init,
 209         .override_target = hl_interface_override_target,
 210 };
 211
 212 static struct transport hl_jtag_transport = {
 213         .name = "hla_jtag",
 214         .select = hl_transport_select,
 215         .init = hl_transport_init,
 216         .override_target = hl_interface_override_target,
 217 };
 218
 219 const char *hl_transports[] = { "hla_swd", "hla_jtag", NULL };
 220
 221 static void hl_constructor(void) __attribute__ ((constructor));
 222 static void hl_constructor(void)
 223 {
 224         transport_register(&hl_swd_transport);
 225         transport_register(&hl_jtag_transport);
 226 }
 227
 228 bool transport_is_hla(void)
 229 {
 230         struct transport *t;
 231         t = get_current_transport();
 232         return t == &hl_swd_transport || t == &hl_jtag_transport;
 233 }