98433cf71c0d9cea02d51882564a04cb2c26377b
[openocd.git] / 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 /* cli handling */
32 int avr_register_commands(struct command_context_s *cmd_ctx);
33
34 /* forward declarations */
35 int avr_target_create(struct target_s *target, Jim_Interp *interp);
36 int avr_init_target(struct command_context_s *cmd_ctx, struct target_s *target);
37
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, uint32_t address, int handle_breakpoints, int debug_execution);
42 int avr_step(struct target_s *target, int current, uint32_t address, int handle_breakpoints);
43
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);
47
48 /* IR and DR functions */
49 int avr_jtag_sendinstr(jtag_tap_t *tap, uint8_t *ir_in, uint8_t ir_out);
50 int avr_jtag_senddat(jtag_tap_t *tap, uint32_t *dr_in, uint32_t dr_out, int len);
51
52 int mcu_write_ir(jtag_tap_t *tap, uint8_t *ir_in, uint8_t *ir_out, int ir_len, int rti);
53 int mcu_write_dr(jtag_tap_t *tap, uint8_t *dr_in, uint8_t *dr_out, int dr_len, int rti);
54 int mcu_write_ir_u8(jtag_tap_t *tap, uint8_t *ir_in, uint8_t ir_out, int ir_len, int rti);
55 int mcu_write_dr_u8(jtag_tap_t *tap, uint8_t *ir_in, uint8_t ir_out, int dr_len, int rti);
56 int mcu_write_ir_u16(jtag_tap_t *tap, uint16_t *ir_in, uint16_t ir_out, int ir_len, int rti);
57 int mcu_write_dr_u16(jtag_tap_t *tap, uint16_t *ir_in, uint16_t ir_out, int dr_len, int rti);
58 int mcu_write_ir_u32(jtag_tap_t *tap, uint32_t *ir_in, uint32_t ir_out, int ir_len, int rti);
59 int mcu_write_dr_u32(jtag_tap_t *tap, uint32_t *ir_in, uint32_t ir_out, int dr_len, int rti);
60 int mcu_execute_queue(void);
61
62 target_type_t avr_target =
63 {
64 .name = "avr",
65
66 .poll = avr_poll,
67 .arch_state = avr_arch_state,
68
69 .target_request_data = NULL,
70
71 .halt = avr_halt,
72 .resume = avr_resume,
73 .step = avr_step,
74
75 .assert_reset = avr_assert_reset,
76 .deassert_reset = avr_deassert_reset,
77 .soft_reset_halt = avr_soft_reset_halt,
78 /*
79 .get_gdb_reg_list = avr_get_gdb_reg_list,
80
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,
86
87 .run_algorithm = avr_run_algorithm,
88
89 .add_breakpoint = avr_add_breakpoint,
90 .remove_breakpoint = avr_remove_breakpoint,
91 .add_watchpoint = avr_add_watchpoint,
92 .remove_watchpoint = avr_remove_watchpoint,
93 */
94 .register_commands = avr_register_commands,
95 .target_create = avr_target_create,
96 .init_target = avr_init_target,
97 };
98
99 int avr_register_commands(struct command_context_s *cmd_ctx)
100 {
101 LOG_DEBUG("%s", __FUNCTION__);
102 return ERROR_OK;
103 }
104
105 int avr_target_create(struct target_s *target, Jim_Interp *interp)
106 {
107 avr_common_t *avr = calloc(1, sizeof(avr_common_t));
108
109 avr->jtag_info.tap = target->tap;
110 target->arch_info = avr;
111
112 return ERROR_OK;
113 }
114
115 int avr_init_target(struct command_context_s *cmd_ctx, struct target_s *target)
116 {
117 LOG_DEBUG("%s", __FUNCTION__);
118 return ERROR_OK;
119 }
120
121 int avr_arch_state(struct target_s *target)
122 {
123 LOG_DEBUG("%s", __FUNCTION__);
124 return ERROR_OK;
125 }
126
127 int avr_poll(target_t *target)
128 {
129 if ((target->state == TARGET_RUNNING) || (target->state == TARGET_DEBUG_RUNNING))
130 {
131 target->state = TARGET_HALTED;
132 }
133
134 LOG_DEBUG("%s", __FUNCTION__);
135 return ERROR_OK;
136 }
137
138 int avr_halt(target_t *target)
139 {
140 LOG_DEBUG("%s", __FUNCTION__);
141 return ERROR_OK;
142 }
143
144 int avr_resume(struct target_s *target, int current, uint32_t address, int handle_breakpoints, int debug_execution)
145 {
146 LOG_DEBUG("%s", __FUNCTION__);
147 return ERROR_OK;
148 }
149
150 int avr_step(struct target_s *target, int current, uint32_t address, int handle_breakpoints)
151 {
152 LOG_DEBUG("%s", __FUNCTION__);
153 return ERROR_OK;
154 }
155
156 int avr_assert_reset(target_t *target)
157 {
158 target->state = TARGET_RESET;
159
160 LOG_DEBUG("%s", __FUNCTION__);
161 return ERROR_OK;
162 }
163
164 int avr_deassert_reset(target_t *target)
165 {
166 target->state = TARGET_RUNNING;
167
168 LOG_DEBUG("%s", __FUNCTION__);
169 return ERROR_OK;
170 }
171
172 int avr_soft_reset_halt(struct target_s *target)
173 {
174 LOG_DEBUG("%s", __FUNCTION__);
175 return ERROR_OK;
176 }
177
178 int avr_jtag_senddat(jtag_tap_t *tap, uint32_t* dr_in, uint32_t dr_out, int len)
179 {
180 return mcu_write_dr_u32(tap, dr_in, dr_out, len, 1);
181 }
182
183 int avr_jtag_sendinstr(jtag_tap_t *tap, uint8_t *ir_in, uint8_t ir_out)
184 {
185 return mcu_write_ir_u8(tap, ir_in, ir_out, AVR_JTAG_INS_LEN, 1);
186 }
187
188 /* IR and DR functions */
189 int mcu_write_ir(jtag_tap_t *tap, uint8_t *ir_in, uint8_t *ir_out, int ir_len, int rti)
190 {
191 if (NULL == tap)
192 {
193 LOG_ERROR("invalid tap");
194 return ERROR_FAIL;
195 }
196 if (ir_len != tap->ir_length)
197 {
198 LOG_ERROR("invalid ir_len");
199 return ERROR_FAIL;
200 }
201
202 {
203 scan_field_t field[1];
204
205 field[0].tap = tap;
206 field[0].num_bits = tap->ir_length;
207 field[0].out_value = ir_out;
208 field[0].in_value = ir_in;
209 jtag_add_plain_ir_scan(sizeof(field) / sizeof(field[0]), field, jtag_set_end_state(TAP_IDLE));
210 }
211
212 return ERROR_OK;
213 }
214
215 int mcu_write_dr(jtag_tap_t *tap, uint8_t *dr_in, uint8_t *dr_out, int dr_len, int rti)
216 {
217 if (NULL == tap)
218 {
219 LOG_ERROR("invalid tap");
220 return ERROR_FAIL;
221 }
222
223 {
224 scan_field_t field[1];
225
226 field[0].tap = tap;
227 field[0].num_bits = dr_len;
228 field[0].out_value = dr_out;
229 field[0].in_value = dr_in;
230 jtag_add_plain_dr_scan(sizeof(field) / sizeof(field[0]), field, jtag_set_end_state(TAP_IDLE));
231 }
232
233 return ERROR_OK;
234 }
235
236 int mcu_write_ir_u8(jtag_tap_t *tap, uint8_t *ir_in, uint8_t ir_out, int ir_len, int rti)
237 {
238 if (ir_len > 8)
239 {
240 LOG_ERROR("ir_len overflow, maxium is 8");
241 return ERROR_FAIL;
242 }
243
244 mcu_write_ir(tap, ir_in, &ir_out, ir_len, rti);
245
246 return ERROR_OK;
247 }
248
249 int mcu_write_dr_u8(jtag_tap_t *tap, uint8_t *dr_in, uint8_t dr_out, int dr_len, int rti)
250 {
251 if (dr_len > 8)
252 {
253 LOG_ERROR("dr_len overflow, maxium is 8");
254 return ERROR_FAIL;
255 }
256
257 mcu_write_dr(tap, dr_in, &dr_out, dr_len, rti);
258
259 return ERROR_OK;
260 }
261
262 int mcu_write_ir_u16(jtag_tap_t *tap, uint16_t *ir_in, uint16_t ir_out, int ir_len, int rti)
263 {
264 if (ir_len > 16)
265 {
266 LOG_ERROR("ir_len overflow, maxium is 16");
267 return ERROR_FAIL;
268 }
269
270 mcu_write_ir(tap, (uint8_t*)ir_in, (uint8_t*)&ir_out, ir_len, rti);
271
272 return ERROR_OK;
273 }
274
275 int mcu_write_dr_u16(jtag_tap_t *tap, uint16_t *dr_in, uint16_t dr_out, int dr_len, int rti)
276 {
277 if (dr_len > 16)
278 {
279 LOG_ERROR("dr_len overflow, maxium is 16");
280 return ERROR_FAIL;
281 }
282
283 mcu_write_dr(tap, (uint8_t*)dr_in, (uint8_t*)&dr_out, dr_len, rti);
284
285 return ERROR_OK;
286 }
287
288 int mcu_write_ir_u32(jtag_tap_t *tap, uint32_t *ir_in, uint32_t ir_out, int ir_len, int rti)
289 {
290 if (ir_len > 32)
291 {
292 LOG_ERROR("ir_len overflow, maxium is 32");
293 return ERROR_FAIL;
294 }
295
296 mcu_write_ir(tap, (uint8_t*)ir_in, (uint8_t*)&ir_out, ir_len, rti);
297
298 return ERROR_OK;
299 }
300
301 int mcu_write_dr_u32(jtag_tap_t *tap, uint32_t *dr_in, uint32_t dr_out, int dr_len, int rti)
302 {
303 if (dr_len > 32)
304 {
305 LOG_ERROR("dr_len overflow, maxium is 32");
306 return ERROR_FAIL;
307 }
308
309 mcu_write_dr(tap, (uint8_t*)dr_in, (uint8_t*)&dr_out, dr_len, rti);
310
311 return ERROR_OK;
312 }
313
314 int mcu_execute_queue(void)
315 {
316 return jtag_execute_queue();
317 }