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 ***************************************************************************/
26 #include "target_type.h"
29 #define AVR_JTAG_INS_LEN 4
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);
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);
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);
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);
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);
59 struct target_type avr_target =
64 .arch_state = avr_arch_state,
66 .target_request_data = NULL,
72 .assert_reset = avr_assert_reset,
73 .deassert_reset = avr_deassert_reset,
74 .soft_reset_halt = avr_soft_reset_halt,
76 .get_gdb_reg_list = avr_get_gdb_reg_list,
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,
84 .run_algorithm = avr_run_algorithm,
86 .add_breakpoint = avr_add_breakpoint,
87 .remove_breakpoint = avr_remove_breakpoint,
88 .add_watchpoint = avr_add_watchpoint,
89 .remove_watchpoint = avr_remove_watchpoint,
91 .target_create = avr_target_create,
92 .init_target = avr_init_target,
95 int avr_target_create(struct target *target, Jim_Interp *interp)
97 struct avr_common *avr = calloc(1, sizeof(struct avr_common));
99 avr->jtag_info.tap = target->tap;
100 target->arch_info = avr;
105 int avr_init_target(struct command_context *cmd_ctx, struct target *target)
107 LOG_DEBUG("%s", __FUNCTION__);
111 int avr_arch_state(struct target *target)
113 LOG_DEBUG("%s", __FUNCTION__);
117 int avr_poll(struct target *target)
119 if ((target->state == TARGET_RUNNING) || (target->state == TARGET_DEBUG_RUNNING))
121 target->state = TARGET_HALTED;
124 LOG_DEBUG("%s", __FUNCTION__);
128 int avr_halt(struct target *target)
130 LOG_DEBUG("%s", __FUNCTION__);
134 int avr_resume(struct target *target, int current, uint32_t address, int handle_breakpoints, int debug_execution)
136 LOG_DEBUG("%s", __FUNCTION__);
140 int avr_step(struct target *target, int current, uint32_t address, int handle_breakpoints)
142 LOG_DEBUG("%s", __FUNCTION__);
146 int avr_assert_reset(struct target *target)
148 target->state = TARGET_RESET;
150 LOG_DEBUG("%s", __FUNCTION__);
154 int avr_deassert_reset(struct target *target)
156 target->state = TARGET_RUNNING;
158 LOG_DEBUG("%s", __FUNCTION__);
162 int avr_soft_reset_halt(struct target *target)
164 LOG_DEBUG("%s", __FUNCTION__);
168 int avr_jtag_senddat(struct jtag_tap *tap, uint32_t* dr_in, uint32_t dr_out, int len)
170 return mcu_write_dr_u32(tap, dr_in, dr_out, len, 1);
173 int avr_jtag_sendinstr(struct jtag_tap *tap, uint8_t *ir_in, uint8_t ir_out)
175 return mcu_write_ir_u8(tap, ir_in, ir_out, AVR_JTAG_INS_LEN, 1);
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)
183 LOG_ERROR("invalid tap");
186 if (ir_len != tap->ir_length)
188 LOG_ERROR("invalid ir_len");
193 struct scan_field field[1];
196 field[0].num_bits = tap->ir_length;
197 field[0].out_value = ir_out;
198 field[0].in_value = ir_in;
199 jtag_add_plain_ir_scan(ARRAY_SIZE(field), field, jtag_set_end_state(TAP_IDLE));
205 int mcu_write_dr(struct jtag_tap *tap, uint8_t *dr_in, uint8_t *dr_out, int dr_len, int rti)
209 LOG_ERROR("invalid tap");
214 struct scan_field field[1];
217 field[0].num_bits = dr_len;
218 field[0].out_value = dr_out;
219 field[0].in_value = dr_in;
220 jtag_add_plain_dr_scan(ARRAY_SIZE(field), field, jtag_set_end_state(TAP_IDLE));
226 int mcu_write_ir_u8(struct jtag_tap *tap, uint8_t *ir_in, uint8_t ir_out, int ir_len, int rti)
230 LOG_ERROR("ir_len overflow, maxium is 8");
234 mcu_write_ir(tap, ir_in, &ir_out, ir_len, rti);
239 int mcu_write_dr_u8(struct jtag_tap *tap, uint8_t *dr_in, uint8_t dr_out, int dr_len, int rti)
243 LOG_ERROR("dr_len overflow, maxium is 8");
247 mcu_write_dr(tap, dr_in, &dr_out, dr_len, rti);
252 int mcu_write_ir_u16(struct jtag_tap *tap, uint16_t *ir_in, uint16_t ir_out, int ir_len, int rti)
256 LOG_ERROR("ir_len overflow, maxium is 16");
260 mcu_write_ir(tap, (uint8_t*)ir_in, (uint8_t*)&ir_out, ir_len, rti);
265 int mcu_write_dr_u16(struct jtag_tap *tap, uint16_t *dr_in, uint16_t dr_out, int dr_len, int rti)
269 LOG_ERROR("dr_len overflow, maxium is 16");
273 mcu_write_dr(tap, (uint8_t*)dr_in, (uint8_t*)&dr_out, dr_len, rti);
278 int mcu_write_ir_u32(struct jtag_tap *tap, uint32_t *ir_in, uint32_t ir_out, int ir_len, int rti)
282 LOG_ERROR("ir_len overflow, maxium is 32");
286 mcu_write_ir(tap, (uint8_t*)ir_in, (uint8_t*)&ir_out, ir_len, rti);
291 int mcu_write_dr_u32(struct jtag_tap *tap, uint32_t *dr_in, uint32_t dr_out, int dr_len, int rti)
295 LOG_ERROR("dr_len overflow, maxium is 32");
299 mcu_write_dr(tap, (uint8_t*)dr_in, (uint8_t*)&dr_out, dr_len, rti);
304 int mcu_execute_queue(void)
306 return jtag_execute_queue();