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/***************************************************************************
* Copyright (C) 2008 by Spencer Oliver *
* spen@spen-soft.co.uk *
* *
* Copyright (C) 2008 by David T.L. Wong *
* *
* 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, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#ifndef MIPS32_H
#define MIPS32_H
#include "target.h"
#include "register.h"
#include "mips32_pracc.h"
#define MIPS32_COMMON_MAGIC 0xB320B320
/* offsets into mips32 core register cache */
enum
{
MIPS32_PC = 37,
MIPS32NUMCOREREGS
};
typedef struct mips32_comparator_s
{
int used;
//int type;
u32 bp_value;
u32 reg_address;
} mips32_comparator_t;
typedef struct mips32_common_s
{
u32 common_magic;
void *arch_info;
reg_cache_t *core_cache;
mips_ejtag_t ejtag_info;
u32 core_regs[MIPS32NUMCOREREGS];
int bp_scanned;
int num_inst_bpoints;
int num_data_bpoints;
int num_inst_bpoints_avail;
int num_data_bpoints_avail;
mips32_comparator_t *inst_break_list;
mips32_comparator_t *data_break_list;
/* register cache to processor synchronization */
int (*read_core_reg)(struct target_s *target, int num);
int (*write_core_reg)(struct target_s *target, int num);
} mips32_common_t;
typedef struct mips32_core_reg_s
{
u32 num;
struct target_s *target;
mips32_common_t *mips32_common;
} mips32_core_reg_t;
#define MIPS32_OP_BEQ 0x04
#define MIPS32_OP_BNE 0x05
#define MIPS32_OP_ADDI 0x08
#define MIPS32_OP_AND 0x24
#define MIPS32_OP_COP0 0x10
#define MIPS32_OP_LUI 0x0F
#define MIPS32_OP_LW 0x23
#define MIPS32_OP_LBU 0x24
#define MIPS32_OP_LHU 0x25
#define MIPS32_OP_MFHI 0x10
#define MIPS32_OP_MTHI 0x11
#define MIPS32_OP_MFLO 0x12
#define MIPS32_OP_MTLO 0x13
#define MIPS32_OP_SB 0x28
#define MIPS32_OP_SH 0x29
#define MIPS32_OP_SW 0x2B
#define MIPS32_OP_ORI 0x0D
#define MIPS32_COP0_MF 0x00
#define MIPS32_COP0_MT 0x04
#define MIPS32_R_INST(opcode, rs, rt, rd, shamt, funct) (((opcode)<<26) |((rs)<<21)|((rt)<<16)|((rd)<<11)| ((shamt)<<6) | (funct))
#define MIPS32_I_INST(opcode, rs, rt, immd) (((opcode)<<26) |((rs)<<21)|((rt)<<16)|(immd))
#define MIPS32_J_INST(opcode, addr) (((opcode)<<26) |(addr))
#define MIPS32_NOP 0
#define MIPS32_ADDI(tar, src, val) MIPS32_I_INST(MIPS32_OP_ADDI, src, tar, val)
#define MIPS32_AND(reg, off, val) MIPS32_R_INST(0, off, val, reg, 0, MIPS32_OP_AND)
#define MIPS32_B(off) MIPS32_BEQ(0, 0, off)
#define MIPS32_BEQ(src,tar,off) MIPS32_I_INST(MIPS32_OP_BEQ, src, tar, off)
#define MIPS32_BNE(src,tar,off) MIPS32_I_INST(MIPS32_OP_BNE, src, tar, off)
#define MIPS32_MFC0(gpr, cpr, sel) MIPS32_R_INST(MIPS32_OP_COP0, MIPS32_COP0_MF, gpr, cpr, 0, sel)
#define MIPS32_MTC0(gpr,cpr, sel) MIPS32_R_INST(MIPS32_OP_COP0, MIPS32_COP0_MT, gpr, cpr, 0, sel)
#define MIPS32_LBU(reg, off, base) MIPS32_I_INST(MIPS32_OP_LBU, base, reg, off)
#define MIPS32_LHU(reg, off, base) MIPS32_I_INST(MIPS32_OP_LHU, base, reg, off)
#define MIPS32_LUI(reg, val) MIPS32_I_INST(MIPS32_OP_LUI, 0, reg, val)
#define MIPS32_LW(reg, off, base) MIPS32_I_INST(MIPS32_OP_LW, base, reg, off)
#define MIPS32_MFLO(reg) MIPS32_R_INST(0, 0, 0, reg, 0, MIPS32_OP_MFLO)
#define MIPS32_MFHI(reg) MIPS32_R_INST(0, 0, 0, reg, 0, MIPS32_OP_MFHI)
#define MIPS32_MTLO(reg) MIPS32_R_INST(0, reg, 0, 0, 0, MIPS32_OP_MTLO)
#define MIPS32_MTHI(reg) MIPS32_R_INST(0, reg, 0, 0, 0, MIPS32_OP_MTHI)
#define MIPS32_ORI(src, tar, val) MIPS32_I_INST(MIPS32_OP_ORI, src, tar, val)
#define MIPS32_SB(reg, off, base) MIPS32_I_INST(MIPS32_OP_SB, base, reg, off)
#define MIPS32_SH(reg, off, base) MIPS32_I_INST(MIPS32_OP_SH, base, reg, off)
#define MIPS32_SW(reg, off, base) MIPS32_I_INST(MIPS32_OP_SW, base, reg, off)
/* ejtag specific instructions */
#define MIPS32_DRET 0x4200001F
#define MIPS32_SDBBP 0x7000003F
#define MIPS16_SDBBP 0xE801
extern int mips32_arch_state(struct target_s *target);
extern int mips32_init_arch_info(target_t *target, mips32_common_t *mips32, jtag_tap_t *tap);
extern int mips32_restore_context(target_t *target);
extern int mips32_save_context(target_t *target);
extern reg_cache_t *mips32_build_reg_cache(target_t *target);
extern int mips32_run_algorithm(struct target_s *target, int num_mem_params, mem_param_t *mem_params, int num_reg_params, reg_param_t *reg_params, u32 entry_point, u32 exit_point, int timeout_ms, void *arch_info);
extern int mips32_configure_break_unit(struct target_s *target);
extern int mips32_examine(struct target_s *target);
extern int mips32_register_commands(struct command_context_s *cmd_ctx);
extern int mips32_invalidate_core_regs(target_t *target);
extern int mips32_get_gdb_reg_list(target_t *target, reg_t **reg_list[], int *reg_list_size);
#endif /*MIPS32_H*/
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