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 ***************************************************************************/
28 #define AVR_JTAG_INS_LEN 4
31 int avr_register_commands(struct command_context_s *cmd_ctx);
33 /* forward declarations */
34 int avr_target_create(struct target_s *target, Jim_Interp *interp);
35 int avr_init_target(struct command_context_s *cmd_ctx, struct target_s *target);
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, u32 address, int handle_breakpoints, int debug_execution);
42 int avr_step(struct target_s *target, int current, u32 address, int handle_breakpoints);
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);
48 /* IR and DR functions */
49 int avr_jtag_sendinstr(jtag_tap_t *tap, u8 *ir_in, u8 ir_out);
50 int avr_jtag_senddat(jtag_tap_t *tap, u32 *dr_in, u32 dr_out, int len);
52 int mcu_write_ir(jtag_tap_t *tap, u8 *ir_in, u8 *ir_out, int ir_len, int rti);
53 int mcu_write_dr(jtag_tap_t *tap, u8 *dr_in, u8 *dr_out, int dr_len, int rti);
54 int mcu_write_ir_u8(jtag_tap_t *tap, u8 *ir_in, u8 ir_out, int ir_len, int rti);
55 int mcu_write_dr_u8(jtag_tap_t *tap, u8 *ir_in, u8 ir_out, int dr_len, int rti);
56 int mcu_write_ir_u16(jtag_tap_t *tap, u16 *ir_in, u16 ir_out, int ir_len, int rti);
57 int mcu_write_dr_u16(jtag_tap_t *tap, u16 *ir_in, u16 ir_out, int dr_len, int rti);
58 int mcu_write_ir_u32(jtag_tap_t *tap, u32 *ir_in, u32 ir_out, int ir_len, int rti);
59 int mcu_write_dr_u32(jtag_tap_t *tap, u32 *ir_in, u32 ir_out, int dr_len, int rti);
60 int mcu_execute_queue(void);
62 target_type_t avr_target =
67 .arch_state = avr_arch_state,
69 .target_request_data = NULL,
75 .assert_reset = avr_assert_reset,
76 .deassert_reset = avr_deassert_reset,
77 .soft_reset_halt = avr_soft_reset_halt,
79 .get_gdb_reg_list = avr_get_gdb_reg_list,
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,
87 .run_algorithm = avr_run_algorithm,
89 .add_breakpoint = avr_add_breakpoint,
90 .remove_breakpoint = avr_remove_breakpoint,
91 .add_watchpoint = avr_add_watchpoint,
92 .remove_watchpoint = avr_remove_watchpoint,
94 .register_commands = avr_register_commands,
95 .target_create = avr_target_create,
96 .init_target = avr_init_target,
99 .virt2phys = avr_virt2phys,
104 int avr_register_commands(struct command_context_s *cmd_ctx)
106 LOG_DEBUG("%s", __FUNCTION__);
110 int avr_target_create(struct target_s *target, Jim_Interp *interp)
112 avr_common_t *avr = calloc(1, sizeof(avr_common_t));
114 avr->jtag_info.tap = target->tap;
115 target->arch_info = avr;
120 int avr_init_target(struct command_context_s *cmd_ctx, struct target_s *target)
122 LOG_DEBUG("%s", __FUNCTION__);
128 LOG_DEBUG("%s", __FUNCTION__);
132 int avr_arch_state(struct target_s *target)
134 LOG_DEBUG("%s", __FUNCTION__);
138 int avr_poll(target_t *target)
140 if ((target->state == TARGET_RUNNING) || (target->state == TARGET_DEBUG_RUNNING))
142 target->state = TARGET_HALTED;
145 LOG_DEBUG("%s", __FUNCTION__);
149 int avr_halt(target_t *target)
151 LOG_DEBUG("%s", __FUNCTION__);
155 int avr_resume(struct target_s *target, int current, u32 address, int handle_breakpoints, int debug_execution)
157 LOG_DEBUG("%s", __FUNCTION__);
161 int avr_step(struct target_s *target, int current, u32 address, int handle_breakpoints)
163 LOG_DEBUG("%s", __FUNCTION__);
167 int avr_assert_reset(target_t *target)
169 target->state = TARGET_RESET;
171 LOG_DEBUG("%s", __FUNCTION__);
175 int avr_deassert_reset(target_t *target)
177 target->state = TARGET_RUNNING;
179 LOG_DEBUG("%s", __FUNCTION__);
183 int avr_soft_reset_halt(struct target_s *target)
185 LOG_DEBUG("%s", __FUNCTION__);
189 int avr_jtag_senddat(jtag_tap_t *tap, u32* dr_in, u32 dr_out, int len)
191 return mcu_write_dr_u32(tap, dr_in, dr_out, len, 1);
194 int avr_jtag_sendinstr(jtag_tap_t *tap, u8 *ir_in, u8 ir_out)
196 return mcu_write_ir_u8(tap, ir_in, ir_out, AVR_JTAG_INS_LEN, 1);
199 /* IR and DR functions */
200 int mcu_write_ir(jtag_tap_t *tap, u8 *ir_in, u8 *ir_out, int ir_len, int rti)
204 LOG_ERROR("invalid tap");
207 if (ir_len != tap->ir_length)
209 LOG_ERROR("invalid ir_len");
214 scan_field_t field[1];
217 field[0].num_bits = tap->ir_length;
218 field[0].out_value = ir_out;
219 field[0].in_value = ir_in;
220 jtag_add_plain_ir_scan(sizeof(field) / sizeof(field[0]), field, TAP_IDLE);
226 int mcu_write_dr(jtag_tap_t *tap, u8 *dr_in, u8 *dr_out, int dr_len, int rti)
230 LOG_ERROR("invalid tap");
235 scan_field_t field[1];
238 field[0].num_bits = dr_len;
239 field[0].out_value = dr_out;
240 field[0].in_value = dr_in;
241 jtag_add_plain_dr_scan(sizeof(field) / sizeof(field[0]), field, TAP_IDLE);
247 int mcu_write_ir_u8(jtag_tap_t *tap, u8 *ir_in, u8 ir_out, int ir_len, int rti)
251 LOG_ERROR("ir_len overflow, maxium is 8");
255 mcu_write_ir(tap, ir_in, &ir_out, ir_len, rti);
260 int mcu_write_dr_u8(jtag_tap_t *tap, u8 *dr_in, u8 dr_out, int dr_len, int rti)
264 LOG_ERROR("dr_len overflow, maxium is 8");
268 mcu_write_dr(tap, dr_in, &dr_out, dr_len, rti);
273 int mcu_write_ir_u16(jtag_tap_t *tap, u16 *ir_in, u16 ir_out, int ir_len, int rti)
277 LOG_ERROR("ir_len overflow, maxium is 16");
281 mcu_write_ir(tap, (u8*)ir_in, (u8*)&ir_out, ir_len, rti);
286 int mcu_write_dr_u16(jtag_tap_t *tap, u16 *dr_in, u16 dr_out, int dr_len, int rti)
290 LOG_ERROR("dr_len overflow, maxium is 16");
294 mcu_write_dr(tap, (u8*)dr_in, (u8*)&dr_out, dr_len, rti);
299 int mcu_write_ir_u32(jtag_tap_t *tap, u32 *ir_in, u32 ir_out, int ir_len, int rti)
303 LOG_ERROR("ir_len overflow, maxium is 32");
307 mcu_write_ir(tap, (u8*)ir_in, (u8*)&ir_out, ir_len, rti);
312 int mcu_write_dr_u32(jtag_tap_t *tap, u32 *dr_in, u32 dr_out, int dr_len, int rti)
316 LOG_ERROR("dr_len overflow, maxium is 32");
320 mcu_write_dr(tap, (u8*)dr_in, (u8*)&dr_out, dr_len, rti);
325 int mcu_execute_queue(void)
327 return jtag_execute_queue();