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 *cmd_ctx);
  33
  34 /* forward declarations */
  35 int avr_target_create(struct target *target, Jim_Interp *interp);
  36 int avr_init_target(struct command_context *cmd_ctx, struct target *target);
  37
  38 int avr_arch_state(struct target *target);
  39 int avr_poll(struct target *target);
  40 int avr_halt(struct target *target);
  41 int avr_resume(struct target *target, int current, uint32_t address, int handle_breakpoints, int debug_execution);
  42 int avr_step(struct target *target, int current, uint32_t address, int handle_breakpoints);
  43
  44 int avr_assert_reset(struct target *target);
  45 int avr_deassert_reset(struct target *target);
  46 int avr_soft_reset_halt(struct target *target);
  47
  48 /* IR and DR functions */
  49 int avr_jtag_sendinstr(struct jtag_tap *tap, uint8_t *ir_in, uint8_t ir_out);
  50 int avr_jtag_senddat(struct jtag_tap *tap, uint32_t *dr_in, uint32_t dr_out, int len);
  51
  52 int mcu_write_ir(struct jtag_tap *tap, uint8_t *ir_in, uint8_t *ir_out, int ir_len, int rti);
  53 int mcu_write_dr(struct jtag_tap *tap, uint8_t *dr_in, uint8_t *dr_out, int dr_len, int rti);
  54 int mcu_write_ir_u8(struct jtag_tap *tap, uint8_t *ir_in, uint8_t ir_out, int ir_len, int rti);
  55 int mcu_write_dr_u8(struct jtag_tap *tap, uint8_t *ir_in, uint8_t ir_out, int dr_len, int rti);
  56 int mcu_write_ir_u16(struct jtag_tap *tap, uint16_t *ir_in, uint16_t ir_out, int ir_len, int rti);
  57 int mcu_write_dr_u16(struct jtag_tap *tap, uint16_t *ir_in, uint16_t ir_out, int dr_len, int rti);
  58 int mcu_write_ir_u32(struct jtag_tap *tap, uint32_t *ir_in, uint32_t ir_out, int ir_len, int rti);
  59 int mcu_write_dr_u32(struct jtag_tap *tap, uint32_t *ir_in, uint32_t ir_out, int dr_len, int rti);
  60 int mcu_execute_queue(void);
  61
  62 struct target_type 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
  99 int avr_register_commands(struct command_context *cmd_ctx)
 100 {
 101         LOG_DEBUG("%s", __FUNCTION__);
 102         return ERROR_OK;
 103 }
 104
 105 int avr_target_create(struct target *target, Jim_Interp *interp)
 106 {
 107         struct avr_common *avr = calloc(1, sizeof(struct avr_common));
 108
 109         avr->jtag_info.tap = target->tap;
 110         target->arch_info = avr;
 111
 112         return ERROR_OK;
 113 }
 114
 115 int avr_init_target(struct command_context *cmd_ctx, struct target *target)
 116 {
 117         LOG_DEBUG("%s", __FUNCTION__);
 118         return ERROR_OK;
 119 }
 120
 121 int avr_arch_state(struct target *target)
 122 {
 123         LOG_DEBUG("%s", __FUNCTION__);
 124         return ERROR_OK;
 125 }
 126
 127 int avr_poll(struct target *target)
 128 {
 129         if ((target->state == TARGET_RUNNING) || (target->state == TARGET_DEBUG_RUNNING))
 130         {
 131                 target->state = TARGET_HALTED;
 132         }
 133
 134         LOG_DEBUG("%s", __FUNCTION__);
 135         return ERROR_OK;
 136 }
 137
 138 int avr_halt(struct target *target)
 139 {
 140         LOG_DEBUG("%s", __FUNCTION__);
 141         return ERROR_OK;
 142 }
 143
 144 int avr_resume(struct target *target, int current, uint32_t address, int handle_breakpoints, int debug_execution)
 145 {
 146         LOG_DEBUG("%s", __FUNCTION__);
 147         return ERROR_OK;
 148 }
 149
 150 int avr_step(struct target *target, int current, uint32_t address, int handle_breakpoints)
 151 {
 152         LOG_DEBUG("%s", __FUNCTION__);
 153         return ERROR_OK;
 154 }
 155
 156 int avr_assert_reset(struct target *target)
 157 {
 158         target->state = TARGET_RESET;
 159
 160         LOG_DEBUG("%s", __FUNCTION__);
 161         return ERROR_OK;
 162 }
 163
 164 int avr_deassert_reset(struct target *target)
 165 {
 166         target->state = TARGET_RUNNING;
 167
 168         LOG_DEBUG("%s", __FUNCTION__);
 169         return ERROR_OK;
 170 }
 171
 172 int avr_soft_reset_halt(struct target *target)
 173 {
 174         LOG_DEBUG("%s", __FUNCTION__);
 175         return ERROR_OK;
 176 }
 177
 178 int avr_jtag_senddat(struct jtag_tap *tap, uint32_t* dr_in, uint32_t dr_out, int len)
 179 {
 180         return mcu_write_dr_u32(tap, dr_in, dr_out, len, 1);
 181 }
 182
 183 int avr_jtag_sendinstr(struct jtag_tap *tap, uint8_t *ir_in, uint8_t ir_out)
 184 {
 185         return mcu_write_ir_u8(tap, ir_in, ir_out, AVR_JTAG_INS_LEN, 1);
 186 }
 187
 188 /* IR and DR functions */
 189 int mcu_write_ir(struct jtag_tap *tap, uint8_t *ir_in, uint8_t *ir_out, int ir_len, int rti)
 190 {
 191         if (NULL == tap)
 192         {
 193                 LOG_ERROR("invalid tap");
 194                 return ERROR_FAIL;
 195         }
 196         if (ir_len != tap->ir_length)
 197         {
 198                 LOG_ERROR("invalid ir_len");
 199                 return ERROR_FAIL;
 200         }
 201
 202         {
 203                 struct scan_field field[1];
 204
 205                 field[0].tap = tap;
 206                 field[0].num_bits = tap->ir_length;
 207                 field[0].out_value = ir_out;
 208                 field[0].in_value = ir_in;
 209                 jtag_add_plain_ir_scan(sizeof(field) / sizeof(field[0]), field, jtag_set_end_state(TAP_IDLE));
 210         }
 211
 212         return ERROR_OK;
 213 }
 214
 215 int mcu_write_dr(struct jtag_tap *tap, uint8_t *dr_in, uint8_t *dr_out, int dr_len, int rti)
 216 {
 217         if (NULL == tap)
 218         {
 219                 LOG_ERROR("invalid tap");
 220                 return ERROR_FAIL;
 221         }
 222
 223         {
 224                 struct scan_field field[1];
 225
 226                 field[0].tap = tap;
 227                 field[0].num_bits = dr_len;
 228                 field[0].out_value = dr_out;
 229                 field[0].in_value = dr_in;
 230                 jtag_add_plain_dr_scan(sizeof(field) / sizeof(field[0]), field, jtag_set_end_state(TAP_IDLE));
 231         }
 232
 233         return ERROR_OK;
 234 }
 235
 236 int mcu_write_ir_u8(struct jtag_tap *tap, uint8_t *ir_in, uint8_t ir_out, int ir_len, int rti)
 237 {
 238         if (ir_len > 8)
 239         {
 240                 LOG_ERROR("ir_len overflow, maxium is 8");
 241                 return ERROR_FAIL;
 242         }
 243
 244         mcu_write_ir(tap, ir_in, &ir_out, ir_len, rti);
 245
 246         return ERROR_OK;
 247 }
 248
 249 int mcu_write_dr_u8(struct jtag_tap *tap, uint8_t *dr_in, uint8_t dr_out, int dr_len, int rti)
 250 {
 251         if (dr_len > 8)
 252         {
 253                 LOG_ERROR("dr_len overflow, maxium is 8");
 254                 return ERROR_FAIL;
 255         }
 256
 257         mcu_write_dr(tap, dr_in, &dr_out, dr_len, rti);
 258
 259         return ERROR_OK;
 260 }
 261
 262 int mcu_write_ir_u16(struct jtag_tap *tap, uint16_t *ir_in, uint16_t ir_out, int ir_len, int rti)
 263 {
 264         if (ir_len > 16)
 265         {
 266                 LOG_ERROR("ir_len overflow, maxium is 16");
 267                 return ERROR_FAIL;
 268         }
 269
 270         mcu_write_ir(tap, (uint8_t*)ir_in, (uint8_t*)&ir_out, ir_len, rti);
 271
 272         return ERROR_OK;
 273 }
 274
 275 int mcu_write_dr_u16(struct jtag_tap *tap, uint16_t *dr_in, uint16_t dr_out, int dr_len, int rti)
 276 {
 277         if (dr_len > 16)
 278         {
 279                 LOG_ERROR("dr_len overflow, maxium is 16");
 280                 return ERROR_FAIL;
 281         }
 282
 283         mcu_write_dr(tap, (uint8_t*)dr_in, (uint8_t*)&dr_out, dr_len, rti);
 284
 285         return ERROR_OK;
 286 }
 287
 288 int mcu_write_ir_u32(struct jtag_tap *tap, uint32_t *ir_in, uint32_t ir_out, int ir_len, int rti)
 289 {
 290         if (ir_len > 32)
 291         {
 292                 LOG_ERROR("ir_len overflow, maxium is 32");
 293                 return ERROR_FAIL;
 294         }
 295
 296         mcu_write_ir(tap, (uint8_t*)ir_in, (uint8_t*)&ir_out, ir_len, rti);
 297
 298         return ERROR_OK;
 299 }
 300
 301 int mcu_write_dr_u32(struct jtag_tap *tap, uint32_t *dr_in, uint32_t dr_out, int dr_len, int rti)
 302 {
 303         if (dr_len > 32)
 304         {
 305                 LOG_ERROR("dr_len overflow, maxium is 32");
 306                 return ERROR_FAIL;
 307         }
 308
 309         mcu_write_dr(tap, (uint8_t*)dr_in, (uint8_t*)&dr_out, dr_len, rti);
 310
 311         return ERROR_OK;
 312 }
 313
 314 int mcu_execute_queue(void)
 315 {
 316         return jtag_execute_queue();
 317 }