src/target/avrt.c

   1 /***************************************************************************
   2  *   Copyright (C) 2009 by Simon Qian                                      *
   3  *   SimonQian@SimonQian.com                                               *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  19  ***************************************************************************/
  20 #ifdef HAVE_CONFIG_H
  21 #include "config.h"
  22 #endif
  23
  24 #include "replacements.h"
  25
  26 #include "avrt.h"
  27
  28 #include "register.h"
  29 #include "target.h"
  30 #include "log.h"
  31 #include "jtag.h"
  32 #include "binarybuffer.h"
  33 #include "time_support.h"
  34 #include "breakpoints.h"
  35 #include "fileio.h"
  36
  37 #include <stdlib.h>
  38 #include <string.h>
  39
  40 #include <sys/types.h>
  41 #include <unistd.h>
  42 #include <errno.h>
  43
  44 #define AVR_JTAG_INS_LEN                                                        4
  45
  46 /* cli handling */
  47 int avr_register_commands(struct command_context_s *cmd_ctx);
  48
  49 /* forward declarations */
  50 int avr_target_create(struct target_s *target, Jim_Interp *interp);
  51 int avr_init_target(struct command_context_s *cmd_ctx, struct target_s *target);
  52 int avr_quit(void);
  53
  54 int avr_arch_state(struct target_s *target);
  55 int avr_poll(target_t *target);
  56 int avr_halt(target_t *target);
  57 int avr_resume(struct target_s *target, int current, u32 address, int handle_breakpoints, int debug_execution);
  58 int avr_step(struct target_s *target, int current, u32 address, int handle_breakpoints);
  59
  60 int avr_assert_reset(target_t *target);
  61 int avr_deassert_reset(target_t *target);
  62 int avr_soft_reset_halt(struct target_s *target);
  63
  64 /* IR and DR functions */
  65 int avr_jtag_sendinstr(jtag_tap_t *tap, u8 *ir_in, u8 ir_out);
  66 int avr_jtag_senddat(jtag_tap_t *tap, u32 *dr_in, u32 dr_out, int len);
  67
  68 int mcu_write_ir(jtag_tap_t *tap, u8 *ir_in, u8 *ir_out, int ir_len, int rti);
  69 int mcu_write_dr(jtag_tap_t *tap, u8 *dr_in, u8 *dr_out, int dr_len, int rti);
  70 int mcu_write_ir_u8(jtag_tap_t *tap, u8 *ir_in, u8 ir_out, int ir_len, int rti);
  71 int mcu_write_dr_u8(jtag_tap_t *tap, u8 *ir_in, u8 ir_out, int dr_len, int rti);
  72 int mcu_write_ir_u16(jtag_tap_t *tap, u16 *ir_in, u16 ir_out, int ir_len, int rti);
  73 int mcu_write_dr_u16(jtag_tap_t *tap, u16 *ir_in, u16 ir_out, int dr_len, int rti);
  74 int mcu_write_ir_u32(jtag_tap_t *tap, u32 *ir_in, u32 ir_out, int ir_len, int rti);
  75 int mcu_write_dr_u32(jtag_tap_t *tap, u32 *ir_in, u32 ir_out, int dr_len, int rti);
  76 int mcu_execute_queue(void);
  77
  78 target_type_t avr_target =
  79 {
  80         .name = "avr",
  81
  82         .poll = avr_poll,
  83         .arch_state = avr_arch_state,
  84
  85         .target_request_data = NULL,
  86
  87         .halt = avr_halt,
  88         .resume = avr_resume,
  89         .step = avr_step,
  90
  91         .assert_reset = avr_assert_reset,
  92         .deassert_reset = avr_deassert_reset,
  93         .soft_reset_halt = avr_soft_reset_halt,
  94 /*
  95         .get_gdb_reg_list = avr_get_gdb_reg_list,
  96
  97         .read_memory = avr_read_memory,
  98         .write_memory = avr_write_memory,
  99         .bulk_write_memory = avr_bulk_write_memory,
 100         .checksum_memory = avr_checksum_memory,
 101         .blank_check_memory = avr_blank_check_memory,
 102
 103         .run_algorithm = avr_run_algorithm,
 104
 105         .add_breakpoint = avr_add_breakpoint,
 106         .remove_breakpoint = avr_remove_breakpoint,
 107         .add_watchpoint = avr_add_watchpoint,
 108         .remove_watchpoint = avr_remove_watchpoint,
 109 */
 110         .register_commands = avr_register_commands,
 111         .target_create = avr_target_create,
 112         .init_target = avr_init_target,
 113         .quit = avr_quit,
 114 /*
 115         .virt2phys = avr_virt2phys,
 116         .mmu = avr_mmu
 117 */
 118 };
 119
 120 int avr_register_commands(struct command_context_s *cmd_ctx)
 121 {
 122         LOG_DEBUG("%s", __FUNCTION__);
 123         return ERROR_OK;
 124 }
 125
 126 int avr_target_create(struct target_s *target, Jim_Interp *interp)
 127 {
 128         avr_common_t *avr = calloc(1, sizeof(avr_common_t));
 129
 130         avr->jtag_info.tap = target->tap;
 131         target->arch_info = avr;
 132
 133         return ERROR_OK;
 134 }
 135
 136 int avr_init_target(struct command_context_s *cmd_ctx, struct target_s *target)
 137 {
 138         LOG_DEBUG("%s", __FUNCTION__);
 139         return ERROR_OK;
 140 }
 141
 142 int avr_quit(void)
 143 {
 144         LOG_DEBUG("%s", __FUNCTION__);
 145         return ERROR_OK;
 146 }
 147
 148 int avr_arch_state(struct target_s *target)
 149 {
 150         LOG_DEBUG("%s", __FUNCTION__);
 151         return ERROR_OK;
 152 }
 153
 154 int avr_poll(target_t *target)
 155 {
 156         if ((target->state == TARGET_RUNNING) || (target->state == TARGET_DEBUG_RUNNING))
 157         {
 158                 target->state = TARGET_HALTED;
 159         }
 160
 161         LOG_DEBUG("%s", __FUNCTION__);
 162         return ERROR_OK;
 163 }
 164
 165 int avr_halt(target_t *target)
 166 {
 167         LOG_DEBUG("%s", __FUNCTION__);
 168         return ERROR_OK;
 169 }
 170
 171 int avr_resume(struct target_s *target, int current, u32 address, int handle_breakpoints, int debug_execution)
 172 {
 173         LOG_DEBUG("%s", __FUNCTION__);
 174         return ERROR_OK;
 175 }
 176
 177 int avr_step(struct target_s *target, int current, u32 address, int handle_breakpoints)
 178 {
 179         LOG_DEBUG("%s", __FUNCTION__);
 180         return ERROR_OK;
 181 }
 182
 183 int avr_assert_reset(target_t *target)
 184 {
 185         target->state = TARGET_RESET;
 186
 187         LOG_DEBUG("%s", __FUNCTION__);
 188         return ERROR_OK;
 189 }
 190
 191 int avr_deassert_reset(target_t *target)
 192 {
 193         target->state = TARGET_RUNNING;
 194
 195         LOG_DEBUG("%s", __FUNCTION__);
 196         return ERROR_OK;
 197 }
 198
 199 int avr_soft_reset_halt(struct target_s *target)
 200 {
 201         LOG_DEBUG("%s", __FUNCTION__);
 202         return ERROR_OK;
 203 }
 204
 205 int avr_jtag_senddat(jtag_tap_t *tap, u32* dr_in, u32 dr_out, int len)
 206 {
 207         return mcu_write_dr_u32(tap, dr_in, dr_out, len, 1);
 208 }
 209
 210 int avr_jtag_sendinstr(jtag_tap_t *tap, u8 *ir_in, u8 ir_out)
 211 {
 212         return mcu_write_ir_u8(tap, ir_in, ir_out, AVR_JTAG_INS_LEN, 1);
 213 }
 214
 215 /* IR and DR functions */
 216 int mcu_write_ir(jtag_tap_t *tap, u8 *ir_in, u8 *ir_out, int ir_len, int rti)
 217 {
 218         if (NULL == tap)
 219         {
 220                 LOG_ERROR("invalid tap");
 221                 return ERROR_FAIL;
 222         }
 223         if (ir_len != tap->ir_length)
 224         {
 225                 LOG_ERROR("invalid ir_len");
 226                 return ERROR_FAIL;
 227         }
 228
 229         {
 230                 scan_field_t field[1];
 231
 232                 field[0].tap = tap;
 233                 field[0].num_bits = tap->ir_length;
 234                 field[0].out_value = ir_out;
 235                 field[0].in_value = ir_in;
 236                 jtag_add_plain_ir_scan(sizeof(field) / sizeof(field[0]), field, TAP_IDLE);
 237         }
 238
 239         return ERROR_OK;
 240 }
 241
 242 int mcu_write_dr(jtag_tap_t *tap, u8 *dr_in, u8 *dr_out, int dr_len, int rti)
 243 {
 244         if (NULL == tap)
 245         {
 246                 LOG_ERROR("invalid tap");
 247                 return ERROR_FAIL;
 248         }
 249
 250         {
 251                 scan_field_t field[1];
 252
 253                 field[0].tap = tap;
 254                 field[0].num_bits = dr_len;
 255                 field[0].out_value = dr_out;
 256                 field[0].in_value = dr_in;
 257                 jtag_add_plain_dr_scan(sizeof(field) / sizeof(field[0]), field, TAP_IDLE);
 258         }
 259
 260         return ERROR_OK;
 261 }
 262
 263 int mcu_write_ir_u8(jtag_tap_t *tap, u8 *ir_in, u8 ir_out, int ir_len, int rti)
 264 {
 265         if (ir_len > 8)
 266         {
 267                 LOG_ERROR("ir_len overflow, maxium is 8");
 268                 return ERROR_FAIL;
 269         }
 270
 271         mcu_write_ir(tap, ir_in, &ir_out, ir_len, rti);
 272
 273         return ERROR_OK;
 274 }
 275
 276 int mcu_write_dr_u8(jtag_tap_t *tap, u8 *dr_in, u8 dr_out, int dr_len, int rti)
 277 {
 278         if (dr_len > 8)
 279         {
 280                 LOG_ERROR("dr_len overflow, maxium is 8");
 281                 return ERROR_FAIL;
 282         }
 283
 284         mcu_write_dr(tap, dr_in, &dr_out, dr_len, rti);
 285
 286         return ERROR_OK;
 287 }
 288
 289 int mcu_write_ir_u16(jtag_tap_t *tap, u16 *ir_in, u16 ir_out, int ir_len, int rti)
 290 {
 291         if (ir_len > 16)
 292         {
 293                 LOG_ERROR("ir_len overflow, maxium is 16");
 294                 return ERROR_FAIL;
 295         }
 296
 297         mcu_write_ir(tap, (u8*)ir_in, (u8*)&ir_out, ir_len, rti);
 298
 299         return ERROR_OK;
 300 }
 301
 302 int mcu_write_dr_u16(jtag_tap_t *tap, u16 *dr_in, u16 dr_out, int dr_len, int rti)
 303 {
 304         if (dr_len > 16)
 305         {
 306                 LOG_ERROR("dr_len overflow, maxium is 16");
 307                 return ERROR_FAIL;
 308         }
 309
 310         mcu_write_dr(tap, (u8*)dr_in, (u8*)&dr_out, dr_len, rti);
 311
 312         return ERROR_OK;
 313 }
 314
 315 int mcu_write_ir_u32(jtag_tap_t *tap, u32 *ir_in, u32 ir_out, int ir_len, int rti)
 316 {
 317         if (ir_len > 32)
 318         {
 319                 LOG_ERROR("ir_len overflow, maxium is 32");
 320                 return ERROR_FAIL;
 321         }
 322
 323         mcu_write_ir(tap, (u8*)ir_in, (u8*)&ir_out, ir_len, rti);
 324
 325         return ERROR_OK;
 326 }
 327
 328 int mcu_write_dr_u32(jtag_tap_t *tap, u32 *dr_in, u32 dr_out, int dr_len, int rti)
 329 {
 330         if (dr_len > 32)
 331         {
 332                 LOG_ERROR("dr_len overflow, maxium is 32");
 333                 return ERROR_FAIL;
 334         }
 335
 336         mcu_write_dr(tap, (u8*)dr_in, (u8*)&dr_out, dr_len, rti);
 337
 338         return ERROR_OK;
 339 }
 340
 341 int mcu_execute_queue(void)
 342 {
 343         return jtag_execute_queue();
 344 }