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   1 /***************************************************************************
   2  *   Copyright (C) 2008 by Spencer Oliver                                  *
   3  *   spen@spen-soft.co.uk                                                  *
   4  *                                                                         *
   5  *   Copyright (C) 2008 by David T.L. Wong                                 *
   6  *                                                                         *
   7  *   Copyright (C) 2011 by Drasko DRASKOVIC                                *
   8  *   drasko.draskovic@gmail.com                                            *
   9  *                                                                         *
  10  *   This program is free software; you can redistribute it and/or modify  *
  11  *   it under the terms of the GNU General Public License as published by  *
  12  *   the Free Software Foundation; either version 2 of the License, or     *
  13  *   (at your option) any later version.                                   *
  14  *                                                                         *
  15  *   This program is distributed in the hope that it will be useful,       *
  16  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  17  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  18  *   GNU General Public License for more details.                          *
  19  *                                                                         *
  20  *   You should have received a copy of the GNU General Public License     *
  21  *   along with this program; if not, write to the                         *
  22  *   Free Software Foundation, Inc.,                                       *
  23  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  24  ***************************************************************************/
  25
  26 #ifndef MIPS32_PRACC_H
  27 #define MIPS32_PRACC_H
  28
  29 #include <target/mips32.h>
  30 #include <target/mips_ejtag.h>
  31
  32 #define MIPS32_PRACC_FASTDATA_AREA              0xFF200000
  33 #define MIPS32_PRACC_FASTDATA_SIZE              16
  34 #define MIPS32_PRACC_TEXT                               0xFF200200
  35 #define MIPS32_PRACC_STACK                              0xFF204000
  36 #define MIPS32_PRACC_PARAM_IN                   0xFF201000
  37 #define MIPS32_PRACC_PARAM_IN_SIZE              0x1000
  38 #define MIPS32_PRACC_PARAM_OUT                  (MIPS32_PRACC_PARAM_IN + MIPS32_PRACC_PARAM_IN_SIZE)
  39 #define MIPS32_PRACC_PARAM_OUT_SIZE             0x1000
  40
  41 #define MIPS32_FASTDATA_HANDLER_SIZE    0x80
  42 #define UPPER16(uint32_t)                               (uint32_t >> 16)
  43 #define LOWER16(uint32_t)                               (uint32_t & 0xFFFF)
  44 #define NEG16(v)                                                (((~(v)) + 1) & 0xFFFF)
  45 /*#define NEG18(v) (((~(v)) + 1) & 0x3FFFF)*/
  46
  47 int mips32_pracc_read_mem(struct mips_ejtag *ejtag_info,
  48                 uint32_t addr, int size, int count, void *buf);
  49 int mips32_pracc_write_mem(struct mips_ejtag *ejtag_info,
  50                 uint32_t addr, int size, int count, void *buf);
  51 int mips32_pracc_fastdata_xfer(struct mips_ejtag *ejtag_info, struct working_area *source,
  52                 int write_t, uint32_t addr, int count, uint32_t *buf);
  53
  54 int mips32_pracc_read_regs(struct mips_ejtag *ejtag_info, uint32_t *regs);
  55 int mips32_pracc_write_regs(struct mips_ejtag *ejtag_info, uint32_t *regs);
  56
  57 int mips32_pracc_exec(struct mips_ejtag *ejtag_info, int code_len, const uint32_t *code,
  58                 int num_param_in, uint32_t *param_in,
  59                 int num_param_out, uint32_t *param_out, int cycle);
  60
  61 /**
  62  * \b mips32_cp0_read
  63  *
  64  * Simulates mfc0 ASM instruction (Move From C0),
  65  * i.e. implements copro C0 Register read.
  66  *
  67  * @param[in] ejtag_info
  68  * @param[in] val Storage to hold read value
  69  * @param[in] cp0_reg Number of copro C0 register we want to read
  70  * @param[in] cp0_sel Select for the given C0 register
  71  *
  72  * @return ERROR_OK on Sucess, ERROR_FAIL otherwise
  73  */
  74 int mips32_cp0_read(struct mips_ejtag *ejtag_info,
  75                 uint32_t *val, uint32_t cp0_reg, uint32_t cp0_sel);
  76
  77 /**
  78  * \b mips32_cp0_write
  79  *
  80  * Simulates mtc0 ASM instruction (Move To C0),
  81  * i.e. implements copro C0 Register read.
  82  *
  83  * @param[in] ejtag_info
  84  * @param[in] val Value to be written
  85  * @param[in] cp0_reg Number of copro C0 register we want to write to
  86  * @param[in] cp0_sel Select for the given C0 register
  87  *
  88  * @return ERROR_OK on Sucess, ERROR_FAIL otherwise
  89  */
  90 int mips32_cp0_write(struct mips_ejtag *ejtag_info,
  91                 uint32_t val, uint32_t cp0_reg, uint32_t cp0_sel);
  92
  93 #endif