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 extern char **armv7a_mode_strings;
45 typedef enum armv7a_state
53 extern char *armv7a_state_strings[];
55 extern 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 /* VA to PA translation operations opc2 values*/
92 typedef struct armv7a_common_s
95 reg_cache_t *core_cache;
96 enum armv7a_mode core_mode;
97 enum armv7a_state core_state;
99 /* arm adp debug port */
100 swjdp_common_t swjdp_info;
101 armv4_5_mmu_common_t armv4_5_mmu;
102 armv4_5_common_t armv4_5_common;
105 // int (*full_context)(struct target_s *target);
106 // int (*read_core_reg)(struct target_s *target, int num, enum armv7a_mode mode);
107 // int (*write_core_reg)(struct target_s *target, int num, enum armv7a_mode mode, u32 value);
108 int (*read_cp15)(struct target_s *target,
109 uint32_t op1, uint32_t op2,
110 uint32_t CRn, uint32_t CRm, uint32_t *value);
111 int (*write_cp15)(struct target_s *target,
112 uint32_t op1, uint32_t op2,
113 uint32_t CRn, uint32_t CRm, uint32_t value);
115 int (*examine_debug_reason)(target_t *target);
116 void (*pre_debug_entry)(target_t *target);
117 void (*post_debug_entry)(target_t *target);
119 void (*pre_restore_context)(target_t *target);
120 void (*post_restore_context)(target_t *target);
124 typedef struct armv7a_algorithm_s
128 enum armv7a_mode core_mode;
129 enum armv7a_state core_state;
130 } armv7a_algorithm_t;
132 typedef struct armv7a_core_reg_s
135 enum armv7a_mode mode;
137 armv7a_common_t *armv7a_common;
140 int armv7a_arch_state(struct target_s *target);
141 reg_cache_t *armv7a_build_reg_cache(target_t *target,
142 armv7a_common_t *armv7a_common);
143 int armv7a_register_commands(struct command_context_s *cmd_ctx);
144 int armv7a_init_arch_info(target_t *target, armv7a_common_t *armv7a);
146 /* map psr mode bits to linear number */
147 static inline int armv7a_mode_to_number(enum armv7a_mode mode)
151 case ARMV7A_MODE_USR: return 0; break;
152 case ARMV7A_MODE_FIQ: return 1; break;
153 case ARMV7A_MODE_IRQ: return 2; break;
154 case ARMV7A_MODE_SVC: return 3; break;
155 case ARMV7A_MODE_ABT: return 4; break;
156 case ARMV7A_MODE_UND: return 5; break;
157 case ARMV7A_MODE_SYS: return 6; break;
158 case ARMV7A_MODE_MON: return 7; break;
159 case ARMV7A_MODE_ANY: return 0; break; /* map MODE_ANY to user mode */
161 LOG_ERROR("invalid mode value encountered, val %d", mode);
166 /* map linear number to mode bits */
167 static inline enum armv7a_mode armv7a_number_to_mode(int number)
171 case 0: return ARMV7A_MODE_USR; break;
172 case 1: return ARMV7A_MODE_FIQ; break;
173 case 2: return ARMV7A_MODE_IRQ; break;
174 case 3: return ARMV7A_MODE_SVC; break;
175 case 4: return ARMV7A_MODE_ABT; break;
176 case 5: return ARMV7A_MODE_UND; break;
177 case 6: return ARMV7A_MODE_SYS; break;
178 case 7: return ARMV7A_MODE_MON; break;
180 LOG_ERROR("mode index out of bounds");
181 return ARMV7A_MODE_ANY;
186 #endif /* ARMV4_5_H */