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 "avrt.h"
  25 #include "target.h"
  26 #include "target_type.h"
  27
  28
  29 #define AVR_JTAG_INS_LEN        4
  30
  31 /* cli handling */
  32 int avr_register_commands(struct command_context_s *cmd_ctx);
  33
  34 /* forward declarations */
  35 int avr_target_create(struct target_s *target, Jim_Interp *interp);
  36 int avr_init_target(struct command_context_s *cmd_ctx, struct target_s *target);
  37
  38 int avr_arch_state(struct target_s *target);
  39 int avr_poll(target_t *target);
  40 int avr_halt(target_t *target);
  41 int avr_resume(struct target_s *target, int current, uint32_t address, int handle_breakpoints, int debug_execution);
  42 int avr_step(struct target_s *target, int current, uint32_t address, int handle_breakpoints);
  43
  44 int avr_assert_reset(target_t *target);
  45 int avr_deassert_reset(target_t *target);
  46 int avr_soft_reset_halt(struct target_s *target);
  47
  48 /* IR and DR functions */
  49 int avr_jtag_sendinstr(jtag_tap_t *tap, uint8_t *ir_in, uint8_t ir_out);
  50 int avr_jtag_senddat(jtag_tap_t *tap, uint32_t *dr_in, uint32_t dr_out, int len);
  51
  52 int mcu_write_ir(jtag_tap_t *tap, uint8_t *ir_in, uint8_t *ir_out, int ir_len, int rti);
  53 int mcu_write_dr(jtag_tap_t *tap, uint8_t *dr_in, uint8_t *dr_out, int dr_len, int rti);
  54 int mcu_write_ir_u8(jtag_tap_t *tap, uint8_t *ir_in, uint8_t ir_out, int ir_len, int rti);
  55 int mcu_write_dr_u8(jtag_tap_t *tap, uint8_t *ir_in, uint8_t ir_out, int dr_len, int rti);
  56 int mcu_write_ir_u16(jtag_tap_t *tap, uint16_t *ir_in, uint16_t ir_out, int ir_len, int rti);
  57 int mcu_write_dr_u16(jtag_tap_t *tap, uint16_t *ir_in, uint16_t ir_out, int dr_len, int rti);
  58 int mcu_write_ir_u32(jtag_tap_t *tap, uint32_t *ir_in, uint32_t ir_out, int ir_len, int rti);
  59 int mcu_write_dr_u32(jtag_tap_t *tap, uint32_t *ir_in, uint32_t ir_out, int dr_len, int rti);
  60 int mcu_execute_queue(void);
  61
  62 target_type_t avr_target =
  63 {
  64         .name = "avr",
  65
  66         .poll = avr_poll,
  67         .arch_state = avr_arch_state,
  68
  69         .target_request_data = NULL,
  70
  71         .halt = avr_halt,
  72         .resume = avr_resume,
  73         .step = avr_step,
  74
  75         .assert_reset = avr_assert_reset,
  76         .deassert_reset = avr_deassert_reset,
  77         .soft_reset_halt = avr_soft_reset_halt,
  78 /*
  79         .get_gdb_reg_list = avr_get_gdb_reg_list,
  80
  81         .read_memory = avr_read_memory,
  82         .write_memory = avr_write_memory,
  83         .bulk_write_memory = avr_bulk_write_memory,
  84         .checksum_memory = avr_checksum_memory,
  85         .blank_check_memory = avr_blank_check_memory,
  86
  87         .run_algorithm = avr_run_algorithm,
  88
  89         .add_breakpoint = avr_add_breakpoint,
  90         .remove_breakpoint = avr_remove_breakpoint,
  91         .add_watchpoint = avr_add_watchpoint,
  92         .remove_watchpoint = avr_remove_watchpoint,
  93 */
  94         .register_commands = avr_register_commands,
  95         .target_create = avr_target_create,
  96         .init_target = avr_init_target,
  97 /*
  98         .virt2phys = avr_virt2phys,
  99         .mmu = avr_mmu
 100 */
 101 };
 102
 103 int avr_register_commands(struct command_context_s *cmd_ctx)
 104 {
 105         LOG_DEBUG("%s", __FUNCTION__);
 106         return ERROR_OK;
 107 }
 108
 109 int avr_target_create(struct target_s *target, Jim_Interp *interp)
 110 {
 111         avr_common_t *avr = calloc(1, sizeof(avr_common_t));
 112
 113         avr->jtag_info.tap = target->tap;
 114         target->arch_info = avr;
 115
 116         return ERROR_OK;
 117 }
 118
 119 int avr_init_target(struct command_context_s *cmd_ctx, struct target_s *target)
 120 {
 121         LOG_DEBUG("%s", __FUNCTION__);
 122         return ERROR_OK;
 123 }
 124
 125 int avr_arch_state(struct target_s *target)
 126 {
 127         LOG_DEBUG("%s", __FUNCTION__);
 128         return ERROR_OK;
 129 }
 130
 131 int avr_poll(target_t *target)
 132 {
 133         if ((target->state == TARGET_RUNNING) || (target->state == TARGET_DEBUG_RUNNING))
 134         {
 135                 target->state = TARGET_HALTED;
 136         }
 137
 138         LOG_DEBUG("%s", __FUNCTION__);
 139         return ERROR_OK;
 140 }
 141
 142 int avr_halt(target_t *target)
 143 {
 144         LOG_DEBUG("%s", __FUNCTION__);
 145         return ERROR_OK;
 146 }
 147
 148 int avr_resume(struct target_s *target, int current, uint32_t address, int handle_breakpoints, int debug_execution)
 149 {
 150         LOG_DEBUG("%s", __FUNCTION__);
 151         return ERROR_OK;
 152 }
 153
 154 int avr_step(struct target_s *target, int current, uint32_t address, int handle_breakpoints)
 155 {
 156         LOG_DEBUG("%s", __FUNCTION__);
 157         return ERROR_OK;
 158 }
 159
 160 int avr_assert_reset(target_t *target)
 161 {
 162         target->state = TARGET_RESET;
 163
 164         LOG_DEBUG("%s", __FUNCTION__);
 165         return ERROR_OK;
 166 }
 167
 168 int avr_deassert_reset(target_t *target)
 169 {
 170         target->state = TARGET_RUNNING;
 171
 172         LOG_DEBUG("%s", __FUNCTION__);
 173         return ERROR_OK;
 174 }
 175
 176 int avr_soft_reset_halt(struct target_s *target)
 177 {
 178         LOG_DEBUG("%s", __FUNCTION__);
 179         return ERROR_OK;
 180 }
 181
 182 int avr_jtag_senddat(jtag_tap_t *tap, uint32_t* dr_in, uint32_t dr_out, int len)
 183 {
 184         return mcu_write_dr_u32(tap, dr_in, dr_out, len, 1);
 185 }
 186
 187 int avr_jtag_sendinstr(jtag_tap_t *tap, uint8_t *ir_in, uint8_t ir_out)
 188 {
 189         return mcu_write_ir_u8(tap, ir_in, ir_out, AVR_JTAG_INS_LEN, 1);
 190 }
 191
 192 /* IR and DR functions */
 193 int mcu_write_ir(jtag_tap_t *tap, uint8_t *ir_in, uint8_t *ir_out, int ir_len, int rti)
 194 {
 195         if (NULL == tap)
 196         {
 197                 LOG_ERROR("invalid tap");
 198                 return ERROR_FAIL;
 199         }
 200         if (ir_len != tap->ir_length)
 201         {
 202                 LOG_ERROR("invalid ir_len");
 203                 return ERROR_FAIL;
 204         }
 205
 206         {
 207                 scan_field_t field[1];
 208
 209                 field[0].tap = tap;
 210                 field[0].num_bits = tap->ir_length;
 211                 field[0].out_value = ir_out;
 212                 field[0].in_value = ir_in;
 213                 jtag_add_plain_ir_scan(sizeof(field) / sizeof(field[0]), field, jtag_set_end_state(TAP_IDLE));
 214         }
 215
 216         return ERROR_OK;
 217 }
 218
 219 int mcu_write_dr(jtag_tap_t *tap, uint8_t *dr_in, uint8_t *dr_out, int dr_len, int rti)
 220 {
 221         if (NULL == tap)
 222         {
 223                 LOG_ERROR("invalid tap");
 224                 return ERROR_FAIL;
 225         }
 226
 227         {
 228                 scan_field_t field[1];
 229
 230                 field[0].tap = tap;
 231                 field[0].num_bits = dr_len;
 232                 field[0].out_value = dr_out;
 233                 field[0].in_value = dr_in;
 234                 jtag_add_plain_dr_scan(sizeof(field) / sizeof(field[0]), field, jtag_set_end_state(TAP_IDLE));
 235         }
 236
 237         return ERROR_OK;
 238 }
 239
 240 int mcu_write_ir_u8(jtag_tap_t *tap, uint8_t *ir_in, uint8_t ir_out, int ir_len, int rti)
 241 {
 242         if (ir_len > 8)
 243         {
 244                 LOG_ERROR("ir_len overflow, maxium is 8");
 245                 return ERROR_FAIL;
 246         }
 247
 248         mcu_write_ir(tap, ir_in, &ir_out, ir_len, rti);
 249
 250         return ERROR_OK;
 251 }
 252
 253 int mcu_write_dr_u8(jtag_tap_t *tap, uint8_t *dr_in, uint8_t dr_out, int dr_len, int rti)
 254 {
 255         if (dr_len > 8)
 256         {
 257                 LOG_ERROR("dr_len overflow, maxium is 8");
 258                 return ERROR_FAIL;
 259         }
 260
 261         mcu_write_dr(tap, dr_in, &dr_out, dr_len, rti);
 262
 263         return ERROR_OK;
 264 }
 265
 266 int mcu_write_ir_u16(jtag_tap_t *tap, uint16_t *ir_in, uint16_t ir_out, int ir_len, int rti)
 267 {
 268         if (ir_len > 16)
 269         {
 270                 LOG_ERROR("ir_len overflow, maxium is 16");
 271                 return ERROR_FAIL;
 272         }
 273
 274         mcu_write_ir(tap, (uint8_t*)ir_in, (uint8_t*)&ir_out, ir_len, rti);
 275
 276         return ERROR_OK;
 277 }
 278
 279 int mcu_write_dr_u16(jtag_tap_t *tap, uint16_t *dr_in, uint16_t dr_out, int dr_len, int rti)
 280 {
 281         if (dr_len > 16)
 282         {
 283                 LOG_ERROR("dr_len overflow, maxium is 16");
 284                 return ERROR_FAIL;
 285         }
 286
 287         mcu_write_dr(tap, (uint8_t*)dr_in, (uint8_t*)&dr_out, dr_len, rti);
 288
 289         return ERROR_OK;
 290 }
 291
 292 int mcu_write_ir_u32(jtag_tap_t *tap, uint32_t *ir_in, uint32_t ir_out, int ir_len, int rti)
 293 {
 294         if (ir_len > 32)
 295         {
 296                 LOG_ERROR("ir_len overflow, maxium is 32");
 297                 return ERROR_FAIL;
 298         }
 299
 300         mcu_write_ir(tap, (uint8_t*)ir_in, (uint8_t*)&ir_out, ir_len, rti);
 301
 302         return ERROR_OK;
 303 }
 304
 305 int mcu_write_dr_u32(jtag_tap_t *tap, uint32_t *dr_in, uint32_t dr_out, int dr_len, int rti)
 306 {
 307         if (dr_len > 32)
 308         {
 309                 LOG_ERROR("dr_len overflow, maxium is 32");
 310                 return ERROR_FAIL;
 311         }
 312
 313         mcu_write_dr(tap, (uint8_t*)dr_in, (uint8_t*)&dr_out, dr_len, rti);
 314
 315         return ERROR_OK;
 316 }
 317
 318 int mcu_execute_queue(void)
 319 {
 320         return jtag_execute_queue();
 321 }