src/jtag/hla/hla_transport.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2
   3 /***************************************************************************
   4  *   Copyright (C) 2011 by Mathias Kuester                                 *
   5  *   Mathias Kuester <kesmtp@freenet.de>                                   *
   6  *                                                                         *
   7  *   Copyright (C) 2012 by Spencer Oliver                                  *
   8  *   spen@spen-soft.co.uk                                                  *
   9  ***************************************************************************/
  10
  11 #ifdef HAVE_CONFIG_H
  12 #include "config.h"
  13 #endif
  14
  15 /* project specific includes */
  16 #include <jtag/interface.h>
  17 #include <jtag/tcl.h>
  18 #include <transport/transport.h>
  19 #include <helper/time_support.h>
  20 #include <target/target.h>
  21 #include <jtag/hla/hla_tcl.h>
  22 #include <jtag/hla/hla_transport.h>
  23 #include <jtag/hla/hla_interface.h>
  24
  25 COMMAND_HANDLER(hl_transport_jtag_command)
  26 {
  27         LOG_DEBUG("hl_transport_jtag_command");
  28
  29         return ERROR_OK;
  30 }
  31
  32 COMMAND_HANDLER(hl_transport_reset_command)
  33 {
  34         return hl_interface_init_reset();
  35 }
  36
  37 static const struct command_registration hl_swd_transport_subcommand_handlers[] = {
  38         {
  39          .name = "newdap",
  40          .mode = COMMAND_CONFIG,
  41          .jim_handler = jim_hl_newtap,
  42          .help = "declare a new SWD DAP",
  43          },
  44         COMMAND_REGISTRATION_DONE
  45 };
  46
  47 static const struct command_registration hl_swd_transport_command_handlers[] = {
  48         {
  49          .name = "swd",
  50          .mode = COMMAND_ANY,
  51          .help = "SWD command group",
  52          .usage = "",
  53          .chain = hl_swd_transport_subcommand_handlers,
  54          },
  55         COMMAND_REGISTRATION_DONE
  56 };
  57
  58 static const struct command_registration hl_transport_jtag_subcommand_handlers[] = {
  59         {
  60          .name = "newtap",
  61          .mode = COMMAND_CONFIG,
  62          .jim_handler = jim_hl_newtap,
  63          .help = "Create a new TAP instance named basename.tap_type, "
  64          "and appends it to the scan chain.",
  65          .usage = "basename tap_type '-irlen' count "
  66          "['-expected_id' number]",
  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 hl_jtag_transport_command_handlers[] = {
 124         {
 125          .name = "jtag",
 126          .mode = COMMAND_ANY,
 127          .help = "perform jtag tap actions",
 128          .usage = "",
 129          .chain = hl_transport_jtag_subcommand_handlers,
 130          },
 131         {
 132          .name = "jtag_ntrst_delay",
 133          .mode = COMMAND_ANY,
 134          .handler = hl_transport_jtag_command,
 135          .usage = "",
 136          },
 137         COMMAND_REGISTRATION_DONE
 138 };
 139
 140
 141 static int hl_transport_init(struct command_context *cmd_ctx)
 142 {
 143         LOG_DEBUG("hl_transport_init");
 144         struct target *t = get_current_target(cmd_ctx);
 145         struct transport *transport;
 146         enum hl_transports tr;
 147
 148         if (!t) {
 149                 LOG_ERROR("no current target");
 150                 return ERROR_FAIL;
 151         }
 152
 153         transport = get_current_transport();
 154
 155         if (!transport) {
 156                 LOG_ERROR("no transport selected");
 157                 return ERROR_FAIL;
 158         }
 159
 160         LOG_DEBUG("current transport %s", transport->name);
 161
 162         /* get selected transport as enum */
 163         tr = HL_TRANSPORT_UNKNOWN;
 164
 165         if (strcmp(transport->name, "hla_swd") == 0)
 166                 tr = HL_TRANSPORT_SWD;
 167         else if (strcmp(transport->name, "hla_jtag") == 0)
 168                 tr = HL_TRANSPORT_JTAG;
 169
 170         int retval = hl_interface_open(tr);
 171
 172         if (retval != ERROR_OK)
 173                 return retval;
 174
 175         return hl_interface_init_target(t);
 176 }
 177
 178 static int hl_jtag_transport_select(struct command_context *cmd_ctx)
 179 {
 180         LOG_DEBUG("hl_jtag_transport_select");
 181
 182         /* NOTE:  interface init must already have been done.
 183          * That works with only C code ... no Tcl glue required.
 184          */
 185
 186         return register_commands(cmd_ctx, NULL, hl_jtag_transport_command_handlers);
 187 }
 188
 189 static int hl_swd_transport_select(struct command_context *cmd_ctx)
 190 {
 191         LOG_DEBUG("hl_swd_transport_select");
 192         return register_commands(cmd_ctx, NULL, hl_swd_transport_command_handlers);
 193 }
 194
 195 static struct transport hl_swd_transport = {
 196         .name = "hla_swd",
 197         .select = hl_swd_transport_select,
 198         .init = hl_transport_init,
 199         .override_target = hl_interface_override_target,
 200 };
 201
 202 static struct transport hl_jtag_transport = {
 203         .name = "hla_jtag",
 204         .select = hl_jtag_transport_select,
 205         .init = hl_transport_init,
 206         .override_target = hl_interface_override_target,
 207 };
 208
 209 const char *hl_transports[] = { "hla_swd", "hla_jtag", NULL };
 210
 211 static void hl_constructor(void) __attribute__ ((constructor));
 212 static void hl_constructor(void)
 213 {
 214         transport_register(&hl_swd_transport);
 215         transport_register(&hl_jtag_transport);
 216 }
 217
 218 bool transport_is_hla(void)
 219 {
 220         struct transport *t;
 221         t = get_current_transport();
 222         return t == &hl_swd_transport || t == &hl_jtag_transport;
 223 }