aboutsummaryrefslogtreecommitdiff
path: root/src/include/target.h
blob: aa20f392a421fb83ad9486dfc8c5d1a7e6223c5b (plain)
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
/*
 * This file is part of the Black Magic Debug project.
 *
 * Copyright (C) 2011  Black Sphere Technologies Ltd.
 * Written by Gareth McMullin <gareth@blacksphere.co.nz>
 *
 * 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 3 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/>.
 */

/* Provides an abstract 'target object', the 'methods' of which must be
 * implemented by a target driver when a supported device is detected.
 */

#ifndef __TARGET_H
#define __TARGET_H

/* Halt/resume functions */
#define target_attach(target)	\
	(target)->attach(target)

#define target_detach(target)	\
	(target)->detach(target)

#define target_check_error(target)	\
	(target)->check_error(target)


/* Memory access functions */
#define target_mem_read_words(target, dest, src, len)	\
	(target)->mem_read_words((target), (dest), (src), (len))

#define target_mem_write_words(target, dest, src, len)	\
	(target)->mem_write_words((target), (dest), (src), (len))

#define target_mem_read_bytes(target, dest, src, len)	\
	(target)->mem_read_bytes((target), (dest), (src), (len))

#define target_mem_write_bytes(target, dest, src, len)	\
	(target)->mem_write_bytes((target), (dest), (src), (len))


/* Register access functions */
#define target_regs_read(target, data)	\
	(target)->regs_read((target), (data))

#define target_regs_write(target, data)	\
	(target)->regs_write((target), (data))

#define target_pc_read(target)	\
	(target)->pc_read((target))

#define target_pc_write(target, val)	\
	(target)->pc_write((target), (val))


/* Halt/resume functions */
#define target_reset(target)	\
	(target)->reset(target)

#define target_halt_request(target)	\
	(target)->halt_request(target)

#define target_halt_wait(target)	\
	(target)->halt_wait(target)

#define target_halt_resume(target, step)	\
	(target)->halt_resume((target), (step))

#define target_fault_unwind(target)	\
	((target)->fault_unwind?(target)->fault_unwind((target)):0)

/* Break-/watchpoint functions */
#define target_set_hw_bp(target, addr)	\
	(target)->set_hw_bp((target), (addr))

#define target_clear_hw_bp(target, addr)	\
	(target)->clear_hw_bp((target), (addr))


#define target_set_hw_wp(target, type, addr, len)	\
	(target)->set_hw_wp((target), (type), (addr), (len))

#define target_clear_hw_wp(target, type, addr, len)	\
	(target)->clear_hw_wp((target), (type), (addr), (len))


#define target_check_hw_wp(target, addr)	\
	(target)->check_hw_wp((target), (addr))


/* Flash memory access functions */
#define target_flash_erase(target, addr, len)	\
	(target)->flash_erase((target), (addr), (len))

#define target_flash_write_words(target, dest, src, len)	\
	(target)->flash_write_words((target), (dest), (src), (len))


#define TARGET_LIST_FREE() {				\
	while(target_list) {				\
		target *t = target_list->next;		\
		free(target_list);			\
		target_list = t;			\
	}						\
	last_target = cur_target = NULL;		\
}


typedef struct target_s {
	/* Attach/Detach funcitons */
	void (*attach)(struct target_s *target);
	void (*detach)(struct target_s *target);
	int (*check_error)(struct target_s *target);

	/* Memory access functions */
	int (*mem_read_words)(struct target_s *target, uint32_t *dest, uint32_t src, 
				int len);
	int (*mem_write_words)(struct target_s *target, uint32_t dest, 
				const uint32_t *src, int len);

	int (*mem_read_bytes)(struct target_s *target, uint8_t *dest, uint32_t src, 
				int len);
	int (*mem_write_bytes)(struct target_s *target, uint32_t dest, 
				const uint8_t *src, int len);

	/* Register access functions */
	int regs_size;
	int (*regs_read)(struct target_s *target, void *data);
	int (*regs_write)(struct target_s *target, const void *data);

	uint32_t (*pc_read)(struct target_s *target);
	int (*pc_write)(struct target_s *target, const uint32_t val);

	/* Halt/resume functions */
	void (*reset)(struct target_s *target);
	void (*halt_request)(struct target_s *target);
	int (*halt_wait)(struct target_s *target);
	void (*halt_resume)(struct target_s *target, uint8_t step);
	int (*fault_unwind)(struct target_s *target);

	/* Break-/watchpoint functions */
	int (*set_hw_bp)(struct target_s *target, uint32_t addr);
	int (*clear_hw_bp)(struct target_s *target, uint32_t addr);

	int (*set_hw_wp)(struct target_s *target, uint8_t type, uint32_t addr, uint8_t len);
	int (*clear_hw_wp)(struct target_s *target, uint8_t type, uint32_t addr, uint8_t len);

	int (*check_hw_wp)(struct target_s *target, uint32_t *addr);

	/* Flash memory access functions */
	const char *xml_mem_map;
	int (*flash_erase)(struct target_s *target, uint32_t addr, int len);
	int (*flash_write_words)(struct target_s *target, uint32_t dest, 
				const uint32_t *src, int len);

	const char *driver;

	int size;
	struct target_s *next;
} target;

extern target *target_list, *cur_target, *last_target;

#endif