1 /***************************************************************************
2 * Copyright (C) 2009 by Simon Qian *
3 * SimonQian@SimonQian.com *
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. *
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. *
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 ***************************************************************************/
24 #include "replacements.h"
32 #include "binarybuffer.h"
33 #include "time_support.h"
34 #include "breakpoints.h"
43 #define AVR_JTAG_INS_LEN 4
46 int avr_register_commands(struct command_context_s *cmd_ctx);
48 /* forward declarations */
49 int avr_target_create(struct target_s *target, Jim_Interp *interp);
50 int avr_init_target(struct command_context_s *cmd_ctx, struct target_s *target);
53 int avr_arch_state(struct target_s *target);
54 int avr_poll(target_t *target);
55 int avr_halt(target_t *target);
56 int avr_resume(struct target_s *target, int current, u32 address, int handle_breakpoints, int debug_execution);
57 int avr_step(struct target_s *target, int current, u32 address, int handle_breakpoints);
59 int avr_assert_reset(target_t *target);
60 int avr_deassert_reset(target_t *target);
61 int avr_soft_reset_halt(struct target_s *target);
63 /* IR and DR functions */
64 int avr_jtag_sendinstr(jtag_tap_t *tap, u8 *ir_in, u8 ir_out);
65 int avr_jtag_senddat(jtag_tap_t *tap, u32 *dr_in, u32 dr_out, int len);
67 int mcu_write_ir(jtag_tap_t *tap, u8 *ir_in, u8 *ir_out, int ir_len, int rti);
68 int mcu_write_dr(jtag_tap_t *tap, u8 *dr_in, u8 *dr_out, int dr_len, int rti);
69 int mcu_write_ir_u8(jtag_tap_t *tap, u8 *ir_in, u8 ir_out, int ir_len, int rti);
70 int mcu_write_dr_u8(jtag_tap_t *tap, u8 *ir_in, u8 ir_out, int dr_len, int rti);
71 int mcu_write_ir_u16(jtag_tap_t *tap, u16 *ir_in, u16 ir_out, int ir_len, int rti);
72 int mcu_write_dr_u16(jtag_tap_t *tap, u16 *ir_in, u16 ir_out, int dr_len, int rti);
73 int mcu_write_ir_u32(jtag_tap_t *tap, u32 *ir_in, u32 ir_out, int ir_len, int rti);
74 int mcu_write_dr_u32(jtag_tap_t *tap, u32 *ir_in, u32 ir_out, int dr_len, int rti);
75 int mcu_execute_queue(void);
77 target_type_t avr_target =
82 .arch_state = avr_arch_state,
84 .target_request_data = NULL,
90 .assert_reset = avr_assert_reset,
91 .deassert_reset = avr_deassert_reset,
92 .soft_reset_halt = avr_soft_reset_halt,
94 .get_gdb_reg_list = avr_get_gdb_reg_list,
96 .read_memory = avr_read_memory,
97 .write_memory = avr_write_memory,
98 .bulk_write_memory = avr_bulk_write_memory,
99 .checksum_memory = avr_checksum_memory,
100 .blank_check_memory = avr_blank_check_memory,
102 .run_algorithm = avr_run_algorithm,
104 .add_breakpoint = avr_add_breakpoint,
105 .remove_breakpoint = avr_remove_breakpoint,
106 .add_watchpoint = avr_add_watchpoint,
107 .remove_watchpoint = avr_remove_watchpoint,
109 .register_commands = avr_register_commands,
110 .target_create = avr_target_create,
111 .init_target = avr_init_target,
114 .virt2phys = avr_virt2phys,
119 int avr_register_commands(struct command_context_s *cmd_ctx)
121 LOG_DEBUG("%s", __FUNCTION__);
125 int avr_target_create(struct target_s *target, Jim_Interp *interp)
127 avr_common_t *avr = calloc(1, sizeof(avr_common_t));
129 avr->jtag_info.tap = target->tap;
130 target->arch_info = avr;
135 int avr_init_target(struct command_context_s *cmd_ctx, struct target_s *target)
137 LOG_DEBUG("%s", __FUNCTION__);
143 LOG_DEBUG("%s", __FUNCTION__);
147 int avr_arch_state(struct target_s *target)
149 LOG_DEBUG("%s", __FUNCTION__);
153 int avr_poll(target_t *target)
155 if ((target->state == TARGET_RUNNING) || (target->state == TARGET_DEBUG_RUNNING))
157 target->state = TARGET_HALTED;
160 LOG_DEBUG("%s", __FUNCTION__);
164 int avr_halt(target_t *target)
166 LOG_DEBUG("%s", __FUNCTION__);
170 int avr_resume(struct target_s *target, int current, u32 address, int handle_breakpoints, int debug_execution)
172 LOG_DEBUG("%s", __FUNCTION__);
176 int avr_step(struct target_s *target, int current, u32 address, int handle_breakpoints)
178 LOG_DEBUG("%s", __FUNCTION__);
182 int avr_assert_reset(target_t *target)
184 target->state = TARGET_RESET;
186 LOG_DEBUG("%s", __FUNCTION__);
190 int avr_deassert_reset(target_t *target)
192 target->state = TARGET_RUNNING;
194 LOG_DEBUG("%s", __FUNCTION__);
198 int avr_soft_reset_halt(struct target_s *target)
200 LOG_DEBUG("%s", __FUNCTION__);
204 int avr_jtag_senddat(jtag_tap_t *tap, u32* dr_in, u32 dr_out, int len)
206 return mcu_write_dr_u32(tap, dr_in, dr_out, len, 1);
209 int avr_jtag_sendinstr(jtag_tap_t *tap, u8 *ir_in, u8 ir_out)
211 return mcu_write_ir_u8(tap, ir_in, ir_out, AVR_JTAG_INS_LEN, 1);
214 /* IR and DR functions */
215 int mcu_write_ir(jtag_tap_t *tap, u8 *ir_in, u8 *ir_out, int ir_len, int rti)
219 LOG_ERROR("invalid tap");
222 if (ir_len != tap->ir_length)
224 LOG_ERROR("invalid ir_len");
229 scan_field_t field[1];
232 field[0].num_bits = tap->ir_length;
233 field[0].out_value = ir_out;
234 field[0].in_value = ir_in;
235 jtag_add_plain_ir_scan(sizeof(field) / sizeof(field[0]), field, TAP_IDLE);
241 int mcu_write_dr(jtag_tap_t *tap, u8 *dr_in, u8 *dr_out, int dr_len, int rti)
245 LOG_ERROR("invalid tap");
250 scan_field_t field[1];
253 field[0].num_bits = dr_len;
254 field[0].out_value = dr_out;
255 field[0].in_value = dr_in;
256 jtag_add_plain_dr_scan(sizeof(field) / sizeof(field[0]), field, TAP_IDLE);
262 int mcu_write_ir_u8(jtag_tap_t *tap, u8 *ir_in, u8 ir_out, int ir_len, int rti)
266 LOG_ERROR("ir_len overflow, maxium is 8");
270 mcu_write_ir(tap, ir_in, &ir_out, ir_len, rti);
275 int mcu_write_dr_u8(jtag_tap_t *tap, u8 *dr_in, u8 dr_out, int dr_len, int rti)
279 LOG_ERROR("dr_len overflow, maxium is 8");
283 mcu_write_dr(tap, dr_in, &dr_out, dr_len, rti);
288 int mcu_write_ir_u16(jtag_tap_t *tap, u16 *ir_in, u16 ir_out, int ir_len, int rti)
292 LOG_ERROR("ir_len overflow, maxium is 16");
296 mcu_write_ir(tap, (u8*)ir_in, (u8*)&ir_out, ir_len, rti);
301 int mcu_write_dr_u16(jtag_tap_t *tap, u16 *dr_in, u16 dr_out, int dr_len, int rti)
305 LOG_ERROR("dr_len overflow, maxium is 16");
309 mcu_write_dr(tap, (u8*)dr_in, (u8*)&dr_out, dr_len, rti);
314 int mcu_write_ir_u32(jtag_tap_t *tap, u32 *ir_in, u32 ir_out, int ir_len, int rti)
318 LOG_ERROR("ir_len overflow, maxium is 32");
322 mcu_write_ir(tap, (u8*)ir_in, (u8*)&ir_out, ir_len, rti);
327 int mcu_write_dr_u32(jtag_tap_t *tap, u32 *dr_in, u32 dr_out, int dr_len, int rti)
331 LOG_ERROR("dr_len overflow, maxium is 32");
335 mcu_write_dr(tap, (u8*)dr_in, (u8*)&dr_out, dr_len, rti);
340 int mcu_execute_queue(void)
342 return jtag_execute_queue();