1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
|
/***************************************************************************
* Copyright (C) 2009 by Simon Qian *
* SimonQian@SimonQian.com *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program. If not, see <http://www.gnu.org/licenses/>. *
***************************************************************************/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "avrt.h"
#include "target.h"
#include "target_type.h"
#define AVR_JTAG_INS_LEN 4
/* forward declarations */
static int avr_target_create(struct target *target, Jim_Interp *interp);
static int avr_init_target(struct command_context *cmd_ctx, struct target *target);
static int avr_arch_state(struct target *target);
static int avr_poll(struct target *target);
static int avr_halt(struct target *target);
static int avr_resume(struct target *target, int current, target_addr_t address,
int handle_breakpoints, int debug_execution);
static int avr_step(struct target *target, int current, target_addr_t address,
int handle_breakpoints);
static int avr_assert_reset(struct target *target);
static int avr_deassert_reset(struct target *target);
/* IR and DR functions */
static int mcu_write_ir(struct jtag_tap *tap, uint8_t *ir_in, uint8_t *ir_out, int ir_len, int rti);
static int mcu_write_dr(struct jtag_tap *tap, uint8_t *dr_in, uint8_t *dr_out, int dr_len, int rti);
static int mcu_write_ir_u8(struct jtag_tap *tap, uint8_t *ir_in, uint8_t ir_out, int ir_len, int rti);
static int mcu_write_dr_u32(struct jtag_tap *tap, uint32_t *ir_in, uint32_t ir_out, int dr_len, int rti);
struct target_type avr_target = {
.name = "avr",
.poll = avr_poll,
.arch_state = avr_arch_state,
.halt = avr_halt,
.resume = avr_resume,
.step = avr_step,
.assert_reset = avr_assert_reset,
.deassert_reset = avr_deassert_reset,
/*
.get_gdb_reg_list = avr_get_gdb_reg_list,
.read_memory = avr_read_memory,
.write_memory = avr_write_memory,
.bulk_write_memory = avr_bulk_write_memory,
.checksum_memory = avr_checksum_memory,
.blank_check_memory = avr_blank_check_memory,
.run_algorithm = avr_run_algorithm,
.add_breakpoint = avr_add_breakpoint,
.remove_breakpoint = avr_remove_breakpoint,
.add_watchpoint = avr_add_watchpoint,
.remove_watchpoint = avr_remove_watchpoint,
*/
.target_create = avr_target_create,
.init_target = avr_init_target,
};
static int avr_target_create(struct target *target, Jim_Interp *interp)
{
struct avr_common *avr = calloc(1, sizeof(struct avr_common));
avr->jtag_info.tap = target->tap;
target->arch_info = avr;
return ERROR_OK;
}
static int avr_init_target(struct command_context *cmd_ctx, struct target *target)
{
LOG_DEBUG("%s", __func__);
return ERROR_OK;
}
static int avr_arch_state(struct target *target)
{
LOG_DEBUG("%s", __func__);
return ERROR_OK;
}
static int avr_poll(struct target *target)
{
if ((target->state == TARGET_RUNNING) || (target->state == TARGET_DEBUG_RUNNING))
target->state = TARGET_HALTED;
LOG_DEBUG("%s", __func__);
return ERROR_OK;
}
static int avr_halt(struct target *target)
{
LOG_DEBUG("%s", __func__);
return ERROR_OK;
}
static int avr_resume(struct target *target, int current, target_addr_t address,
int handle_breakpoints, int debug_execution)
{
LOG_DEBUG("%s", __func__);
return ERROR_OK;
}
static int avr_step(struct target *target, int current, target_addr_t address, int handle_breakpoints)
{
LOG_DEBUG("%s", __func__);
return ERROR_OK;
}
static int avr_assert_reset(struct target *target)
{
target->state = TARGET_RESET;
LOG_DEBUG("%s", __func__);
return ERROR_OK;
}
static int avr_deassert_reset(struct target *target)
{
target->state = TARGET_RUNNING;
LOG_DEBUG("%s", __func__);
return ERROR_OK;
}
int avr_jtag_senddat(struct jtag_tap *tap, uint32_t* dr_in, uint32_t dr_out,
int len)
{
return mcu_write_dr_u32(tap, dr_in, dr_out, len, 1);
}
int avr_jtag_sendinstr(struct jtag_tap *tap, uint8_t *ir_in, uint8_t ir_out)
{
return mcu_write_ir_u8(tap, ir_in, ir_out, AVR_JTAG_INS_LEN, 1);
}
/* IR and DR functions */
static int mcu_write_ir(struct jtag_tap *tap, uint8_t *ir_in, uint8_t *ir_out,
int ir_len, int rti)
{
if (NULL == tap) {
LOG_ERROR("invalid tap");
return ERROR_FAIL;
}
if (ir_len != tap->ir_length) {
LOG_ERROR("invalid ir_len");
return ERROR_FAIL;
}
{
jtag_add_plain_ir_scan(tap->ir_length, ir_out, ir_in, TAP_IDLE);
}
return ERROR_OK;
}
static int mcu_write_dr(struct jtag_tap *tap, uint8_t *dr_in, uint8_t *dr_out,
int dr_len, int rti)
{
if (NULL == tap) {
LOG_ERROR("invalid tap");
return ERROR_FAIL;
}
{
jtag_add_plain_dr_scan(dr_len, dr_out, dr_in, TAP_IDLE);
}
return ERROR_OK;
}
static int mcu_write_ir_u8(struct jtag_tap *tap, uint8_t *ir_in,
uint8_t ir_out, int ir_len, int rti)
{
if (ir_len > 8) {
LOG_ERROR("ir_len overflow, maxium is 8");
return ERROR_FAIL;
}
mcu_write_ir(tap, ir_in, &ir_out, ir_len, rti);
return ERROR_OK;
}
static int mcu_write_dr_u32(struct jtag_tap *tap, uint32_t *dr_in,
uint32_t dr_out, int dr_len, int rti)
{
if (dr_len > 32) {
LOG_ERROR("dr_len overflow, maxium is 32");
return ERROR_FAIL;
}
mcu_write_dr(tap, (uint8_t *)dr_in, (uint8_t *)&dr_out, dr_len, rti);
return ERROR_OK;
}
int mcu_execute_queue(void)
{
return jtag_execute_queue();
}
|
