1 /***************************************************************************
2 * Copyright (C) 2009 by David Brownell *
4 * This program is free software; you can redistribute it and/or modify *
5 * it under the terms of the GNU General Public License as published by *
6 * the Free Software Foundation; either version 2 of the License, or *
7 * (at your option) any later version. *
9 * This program is distributed in the hope that it will be useful, *
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
12 * GNU General Public License for more details. *
14 * You should have received a copy of the GNU General Public License *
15 * along with this program; if not, write to the *
16 * Free Software Foundation, Inc., *
17 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
18 ***************************************************************************/
25 #include "arm_adi_v5.h"
27 #include "armv4_5_mmu.h"
28 #include "armv4_5_cache.h"
30 typedef enum armv7a_mode
43 char **armv7a_mode_strings;
45 typedef enum armv7a_state
53 extern char *armv7a_state_strings[];
55 int armv7a_core_reg_map[8][17];
57 #define ARMV7A_CORE_REG_MODE(cache, mode, num) \
58 cache->reg_list[armv7a_core_reg_map[armv7a_mode_to_number(mode)][num]]
59 #define ARMV7A_CORE_REG_MODENUM(cache, mode, num) \
60 cache->reg_list[armv7a_core_reg_map[mode][num]]
68 /* offsets into armv4_5 core register cache */
79 #define ARMV4_5_COMMON_MAGIC 0x0A450A45
80 #define ARMV7_COMMON_MAGIC 0x0A450999
82 typedef struct armv7a_common_s
85 reg_cache_t *core_cache;
86 enum armv7a_mode core_mode;
87 enum armv7a_state core_state;
89 /* arm adp debug port */
90 swjdp_common_t swjdp_info;
91 armv4_5_mmu_common_t armv4_5_mmu;
92 armv4_5_common_t armv4_5_common;
95 // int (*full_context)(struct target_s *target);
96 // int (*read_core_reg)(struct target_s *target, int num, enum armv7a_mode mode);
97 // int (*write_core_reg)(struct target_s *target, int num, enum armv7a_mode mode, u32 value);
98 int (*read_cp15)(struct target_s *target,
99 uint32_t op1, uint32_t op2,
100 uint32_t CRn, uint32_t CRm, uint32_t *value);
101 int (*write_cp15)(struct target_s *target,
102 uint32_t op1, uint32_t op2,
103 uint32_t CRn, uint32_t CRm, uint32_t value);
105 int (*examine_debug_reason)(target_t *target);
106 void (*pre_debug_entry)(target_t *target);
107 void (*post_debug_entry)(target_t *target);
109 void (*pre_restore_context)(target_t *target);
110 void (*post_restore_context)(target_t *target);
114 typedef struct armv7a_algorithm_s
118 enum armv7a_mode core_mode;
119 enum armv7a_state core_state;
120 } armv7a_algorithm_t;
122 typedef struct armv7a_core_reg_s
125 enum armv7a_mode mode;
127 armv7a_common_t *armv7a_common;
130 int armv7a_arch_state(struct target_s *target);
131 reg_cache_t *armv7a_build_reg_cache(target_t *target,
132 armv7a_common_t *armv7a_common);
133 int armv7a_register_commands(struct command_context_s *cmd_ctx);
134 int armv7a_init_arch_info(target_t *target, armv7a_common_t *armv7a);
136 /* map psr mode bits to linear number */
137 static inline int armv7a_mode_to_number(enum armv7a_mode mode)
141 case ARMV7A_MODE_USR: return 0; break;
142 case ARMV7A_MODE_FIQ: return 1; break;
143 case ARMV7A_MODE_IRQ: return 2; break;
144 case ARMV7A_MODE_SVC: return 3; break;
145 case ARMV7A_MODE_ABT: return 4; break;
146 case ARMV7A_MODE_UND: return 5; break;
147 case ARMV7A_MODE_SYS: return 6; break;
148 case ARMV7A_MODE_MON: return 7; break;
149 case ARMV7A_MODE_ANY: return 0; break; /* map MODE_ANY to user mode */
151 LOG_ERROR("invalid mode value encountered");
156 /* map linear number to mode bits */
157 static inline enum armv7a_mode armv7a_number_to_mode(int number)
161 case 0: return ARMV7A_MODE_USR; break;
162 case 1: return ARMV7A_MODE_FIQ; break;
163 case 2: return ARMV7A_MODE_IRQ; break;
164 case 3: return ARMV7A_MODE_SVC; break;
165 case 4: return ARMV7A_MODE_ABT; break;
166 case 5: return ARMV7A_MODE_UND; break;
167 case 6: return ARMV7A_MODE_SYS; break;
168 case 7: return ARMV7A_MODE_MON; break;
170 LOG_ERROR("mode index out of bounds");
171 return ARMV7A_MODE_ANY;
176 #endif /* ARMV4_5_H */