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