8f208f5fda54fb19aaff6d030b5f988ed705e8fe
[openocd.git] / src / target / mips32_pracc.h
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_BASE_ADDR 0xFF200000
34 #define MIPS32_PRACC_FASTDATA_SIZE 16
35 #define MIPS32_PRACC_TEXT 0xFF200200
36 #define MIPS32_PRACC_STACK 0xFF204000
37 #define MIPS32_PRACC_PARAM_IN 0xFF201000
38 #define MIPS32_PRACC_PARAM_IN_SIZE 0x1000
39 #define MIPS32_PRACC_PARAM_OUT (MIPS32_PRACC_PARAM_IN + MIPS32_PRACC_PARAM_IN_SIZE)
40 #define MIPS32_PRACC_PARAM_OUT_SIZE 0x1000
41
42 #define PRACC_UPPER_BASE_ADDR (MIPS32_PRACC_BASE_ADDR >> 16)
43 #define PRACC_TEXT_OFFSET (MIPS32_PRACC_TEXT - MIPS32_PRACC_BASE_ADDR)
44 #define PRACC_IN_OFFSET (MIPS32_PRACC_PARAM_IN - MIPS32_PRACC_BASE_ADDR)
45 #define PRACC_OUT_OFFSET (MIPS32_PRACC_PARAM_OUT - MIPS32_PRACC_BASE_ADDR)
46 #define PRACC_STACK_OFFSET (MIPS32_PRACC_STACK - MIPS32_PRACC_BASE_ADDR)
47
48 #define MIPS32_FASTDATA_HANDLER_SIZE 0x80
49 #define UPPER16(uint32_t) (uint32_t >> 16)
50 #define LOWER16(uint32_t) (uint32_t & 0xFFFF)
51 #define NEG16(v) (((~(v)) + 1) & 0xFFFF)
52 /*#define NEG18(v) (((~(v)) + 1) & 0x3FFFF)*/
53
54 int mips32_pracc_read_mem(struct mips_ejtag *ejtag_info,
55 uint32_t addr, int size, int count, void *buf);
56 int mips32_pracc_write_mem(struct mips_ejtag *ejtag_info,
57 uint32_t addr, int size, int count, void *buf);
58 int mips32_pracc_fastdata_xfer(struct mips_ejtag *ejtag_info, struct working_area *source,
59 int write_t, uint32_t addr, int count, uint32_t *buf);
60
61 int mips32_pracc_read_regs(struct mips_ejtag *ejtag_info, uint32_t *regs);
62 int mips32_pracc_write_regs(struct mips_ejtag *ejtag_info, uint32_t *regs);
63
64 int mips32_pracc_exec(struct mips_ejtag *ejtag_info, int code_len, const uint32_t *code,
65 int num_param_in, uint32_t *param_in,
66 int num_param_out, uint32_t *param_out, int cycle);
67
68 /**
69 * \b mips32_cp0_read
70 *
71 * Simulates mfc0 ASM instruction (Move From C0),
72 * i.e. implements copro C0 Register read.
73 *
74 * @param[in] ejtag_info
75 * @param[in] val Storage to hold read value
76 * @param[in] cp0_reg Number of copro C0 register we want to read
77 * @param[in] cp0_sel Select for the given C0 register
78 *
79 * @return ERROR_OK on Sucess, ERROR_FAIL otherwise
80 */
81 int mips32_cp0_read(struct mips_ejtag *ejtag_info,
82 uint32_t *val, uint32_t cp0_reg, uint32_t cp0_sel);
83
84 /**
85 * \b mips32_cp0_write
86 *
87 * Simulates mtc0 ASM instruction (Move To C0),
88 * i.e. implements copro C0 Register read.
89 *
90 * @param[in] ejtag_info
91 * @param[in] val Value to be written
92 * @param[in] cp0_reg Number of copro C0 register we want to write to
93 * @param[in] cp0_sel Select for the given C0 register
94 *
95 * @return ERROR_OK on Sucess, ERROR_FAIL otherwise
96 */
97 int mips32_cp0_write(struct mips_ejtag *ejtag_info,
98 uint32_t val, uint32_t cp0_reg, uint32_t cp0_sel);
99
100 #endif