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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 "mips32_pracc.h"
#define MIPS32_COMMON_MAGIC 0xB320B320
/* offsets into mips32 core register cache */
enum
{
MIPS32_PC = 37,
MIPS32NUMCOREREGS
};
enum mips32_isa_mode
{
MIPS32_ISA_MIPS32 = 0,
MIPS32_ISA_MIPS16E = 1,
};
struct mips32_comparator
{
int used;
uint32_t bp_value;
uint32_t reg_address;
};
struct mips32_common
{
uint32_t common_magic;
void *arch_info;
struct reg_cache *core_cache;
struct mips_ejtag ejtag_info;
uint32_t core_regs[MIPS32NUMCOREREGS];
enum mips32_isa_mode isa_mode;
int bp_scanned;
int num_inst_bpoints;
int num_data_bpoints;
int num_inst_bpoints_avail;
int num_data_bpoints_avail;
struct mips32_comparator *inst_break_list;
struct mips32_comparator *data_break_list;
/* register cache to processor synchronization */
int (*read_core_reg)(struct target *target, int num);
int (*write_core_reg)(struct target *target, int num);
};
static inline struct mips32_common *
target_to_mips32(struct target *target)
{
return target->arch_info;
}
struct mips32_core_reg
{
uint32_t num;
struct target *target;
struct mips32_common *mips32_common;
};
struct mips32_algorithm
{
int common_magic;
enum mips32_isa_mode isa_mode;
};
#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_JR 0x08
#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_JR(reg) MIPS32_R_INST(0, reg, 0, 0, 0, MIPS32_OP_JR)
#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
int mips32_arch_state(struct target *target);
int mips32_init_arch_info(struct target *target,
struct mips32_common *mips32, struct jtag_tap *tap);
int mips32_restore_context(struct target *target);
int mips32_save_context(struct target *target);
struct reg_cache *mips32_build_reg_cache(struct target *target);
int mips32_run_algorithm(struct target *target,
int num_mem_params, struct mem_param *mem_params,
int num_reg_params, struct reg_param *reg_params,
uint32_t entry_point, uint32_t exit_point,
int timeout_ms, void *arch_info);
int mips32_configure_break_unit(struct target *target);
int mips32_enable_interrupts(struct target *target, int enable);
int mips32_examine(struct target *target);
int mips32_register_commands(struct command_context *cmd_ctx);
int mips32_get_gdb_reg_list(struct target *target,
struct reg **reg_list[], int *reg_list_size);
int mips32_checksum_memory(struct target *target, uint32_t address,
uint32_t count, uint32_t* checksum);
int mips32_blank_check_memory(struct target *target,
uint32_t address, uint32_t count, uint32_t* blank);
#endif /*MIPS32_H*/
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